Engine Building Part 14 - Choosing Carburetors and Fuel Pumps

[@moo.johnference869]

I'm 77 years old next month and I'm installing a new mild roller cam, manifold, carb and headers and appropriate heads on my 350 . I've watched your entire series before starting . I'm seeking 380 HP that runs relative smooth quit and reliable. If I can pull this off anybody can . I had installed this engine in my 54 ford f100 a dozen years ago that I drive everyday .Thank you for the free education Pete . I cant think of a better series to subscribe to.

[@PetesGarage]

You can do it for sure!

[@mbg1899]

Love learning from a real engine builder a professional thanks Pete it's a blessing to watch your vids

[@PetesGarage]

Very welcome

[@Jnb21]

priceless... these videos are just priceless

[@PetesGarage]

Thanks my friend

[@TeddyTheYetti]

Pete...You know what would be really awesome. some videos on 6/71 & 8/71 Roots Blowers. Also, then it would be really cool if you went into proper Cams for Roots style blower engine. However, then you would almost be obligated too go into Ignition systems and then EFI & Carburetor. I guess I should say. thus would be really awesome if you did do some videos about those areas, because I know there's Millions who are interested in these areas as well.

[@Jnb21]

I'm looking forward to any videos on exhausts and/or transmissions. I can see you put a ton of time into these videos so take your time my friend =)

[@PetesGarage]

I sure will....thank you

[@JesseDalton]

Hey Pete. Just wanted to say thanks for these lessons. I've learned heaps. You're a natural teacher. Cheers mate.

[@PetesGarage]

Thank you so much my friend

[@rspista]

what a cool engine building series you got. I really learned a lot! You really got a talent teachin, please dont stop on making more

[@PetesGarage]

Thank you my friend....I am making more and will do what I can

[@tjhamer3]

Thanks for the tech stuff Pete. For me it is a time to think and relax.

[@PetesGarage]

I'm going to relax...in a few years

[@erosthanatos3802]

you are such a wealth of knowledge, i cannot thank you enough

[@PetesGarage]

Your comment is thanks enough. Thank you my friend

[@THEGOLDENSTATEOFME]

Thanx Pete, another great video. You have a fantastic way of explaining thing in easy to understand way.

[@PetesGarage]

Thank you my friend

[@everetteromero1799]

You know what bro I love your videos you explain everything . there are way too many " You Tube" videos that are real quick don't explain nothing and if you were to follow what they say on your own ride , you'll end breaking it. Your vids actually help

[@PetesGarage]

Thanks Everette

[@hotchihuahua1546]

Very well done and informative ! 👍👍

[@PetesGarage]

Thanks Moto

[@dadams19111]

Very well explained Pete!!!

[@PetesGarage]

Thanks my friend

[@raysnell5368]

Gday Pete, excellent work mate. I have subscribe and learning with every posting. We need someone like you in Australia mate. Keep it up

[@PetesGarage]

Maybe I should move down there....thank you my friend

[@davidmorgan9884]

I agree fully, I've learned alot from PETE'S GARAGE. Pete keep up the great vids

[@PetesGarage]

Thank you David. We are all here to learn, I learn something every day.

[@tedvanmatje]

aye....carburettors and their setting-up or choice of type to use/purchase, are the most difficult part of whole setup. I sincerely hope (although I doubt it) that there are videos out on the tube; which can explain/educate to the same level of expertise as petes' videos do; in explaining the 'holy sacrement' concerning carbs and their setting up in detail. the mark of expectation has been chalked very high (even after only watching 14 videos of this series)...and so it should be! by a very large degree, this channel overshadows all of the rest. keep up the outstanding work pete!

[@joesenchuk2671]

Never be sorry to provide formulas and expect people who are interested in building engines to understand and perform "math". Honestly, if you can't do math, you might not want to get into engine building. Please... give the formulas and allow us to do the math. For me, this is one of the funnest parts of all this.. Love your vids and I really do appreciate all of the time and effort you put into producing this media. Nice job Pete. Thanks so much.

[@PetesGarage]

Thanks Joe. I also think it's important to do at least the basic math. That's the difference between an engine builder and an engine assembler.

[@ramonvega9967]

i am greatful for this series,,,thank you pete

[@PetesGarage]

Thanks Ramon

[@mikemassey780]

Great information thanks

[@PetesGarage]

Thanks Mike

[@fanusvanstaden729]

Thank you Pete,you are a awesome tutor and Merry Christmas to you to.

[@PetesGarage]

Merry Christmas, thank you my friend

[@djb-freak4999]

nice vids man! can't stop watching! It's nice because you know a lot and I take note, it will help me a lot, many thanks

[@PetesGarage]

That's awesome!Let me know if you need help

[@djb-freak4999]

+Petes Garage thanks man! :D

[@ziggassedup]

I enjoyed that Pete....You know there's a guy heading off right now some where in the world that's gunna come home with a Mother Thumper cam and a 650 double pumper to stick in his 302 and it will probably do exactly what he wants it to do..lol..Cheers mate.

[@PetesGarage]

+ZIGgassedUP The right combo can do wonders......thanks my friend

[@DjBaBaDProMiXX]

awesome videos love those thank you you are awesome and we have a lot more to learn! its never enough thank you!!!! love all of your videos allredy saw them all

[@PetesGarage]

That is very nice of you, thank you

[@Derekbitt1]

Appreciate what you do. I am building my first engine, a gen v big block Chevy 496 for a truck. Your Channel is one of my resources for information, I am planning to use a self tuning efi system, not sure which one yet...thanks again

[@PetesGarage]

Cool project. There are a few EFI systems available, talk to Tech support and you'll find the right one for you

[@thinkingaboutit9826]

Very informative, Thank-you

[@PetesGarage]

You are welcome!

[@jevchance]

Good info Pete thanks for the video.

[@davidcollis4758]

Pete, I just watched some of your videos. I really appreciate you responding to peoples questions. That tells me you are a good guy. I was an auto mechanic for 22 years. I am currently rebuilding an Oldsmobile 350 engine for my '68 Cutlass and a 383 stroker engine for my '87 Chevy P/U with a 305 which is fuel injected. I may ask you some questions. I have only rebuilt stock engines for FI vehicles. I have been out of the mechanic industry for about 10 years. I'm a little out of touch with the latest technological advances in FI tuning and such but I am trying to catch up. God Bless you and keep up the good work.

[@PetesGarage]

Thank you David, I'm trying to help. We are all here to learn together.

[@andreifratian3977]

Hey Pete, I've been watching your videos from the very beginning, and I gotta say I'm blown away. I haven't seen anything this comprehensive anywhere and it makes me think that I am actually capable of building my own engine. I recently bought a 1969 mustang and I want to build a semi-performance 351w for it. I am in college so my budget is obviously rather limited. If I got my hands on a decent machined block, how much would it cost me to build a complete engine if I did it myself that hits around 430 hp?

[@PetesGarage]

Thanks Andrei. I've done a few '69 Mustangs so you're putting it in a great car. You could do it yourself for about $4,000.

[@jesussylviapadilla66]

Thanks Pete

[@PetesGarage]

Very welcome

[@Derekbitt1]

Patiently waiting for FI video, good stuff

[@PetesGarage]

I know.....it's been a hectic summer. Very soon my friend

[@barrykilts4506]

I came across an article yrs ago about Holley 4150’s,proform & QFT billet carb parts and it went on to describe mixing and matching carb parts for performance and cam increase.I used to have subscriptions saved and used a lot of articles like a library.back then pc’s were just starting to coming and much of the info you got was from magazines.anyway somehow I lost this article and am looking for help to restrain the info as much money and effort has been put forth and I can use a little help.it’s mostly about Brawler type carburetion 600-800 or 850 and the proform and QFT billet parts had been out a bit but it was really good info and I can get a pc to help worth crap.if you know know what I speak of it would be much appreciated.I was injured and down a number of yrs but am trying to work my way back now. Thank you and others for all the help and info you supply,it’s not wasted

[@PetesGarage]

I completely understand what you are talking about. Unless you plan on spending tons of time on a dyno trying the different configurations, in my opinion, you'd be better off buying a new carb. Some of them are pretty awesome right out of the box.

[@potshot23]

Wish I would've found you a few years back. Been fighting sootie plugs, and I think my problem has been my carb. Quick fuel race carb 750 for street/strip. Maybe I should go to a 650 double pump, but I still drive to cruise-in's through the summer..

[@PetesGarage]

Regardless of the carb size you still need to jet it to get the right size, rich is causing your soot problem.

[@H3XLYBETA]

I have waited so long for this!

[@PetesGarage]

+Æon Flux I'm sorry....I'll get back to making videos on a regular basis

[@H3XLYBETA]

+Petes Garage No no mate, that wasn't a criticism, I was saying I love your videos! I watched your entire Engine Building series in one night last year, absolutely hooked on them. I'm a Mechanical Engineering Apprentice in the Turbocharger industry, and I love learning, I've learnt the most about cars from your videos, they're my favourite! Nice work :)

[@PetesGarage]

+Æon Flux I know....I'm glad they are appreciated....I really do need to make more....

[@tomashton1781]

my 2300 pinto engine used a used a divided port runner offenhauser, dual port intake four barrel, , when I installed a high lift cam with more duration yvacuum was around 12, I used a four barrel 390 Holly all I had to do was match the power valve and lean out the jets, all I know is there is no such thing as running an after market carb (one size fits all ) with out doing a plug check, Ive seen guys install 750 cfm carbs on street 350,s and they say Holley suck,s yeah right you gotta match the jets, and learn how to read the plugs, a smaller carb has more velocity for better atomization

[@PetesGarage]

That's the details of tuning

[@ralphvalkenhoff2887]

Great video Pete

[@PetesGarage]

Thanks my friend

[@milehighgimpster]

Great information. Thanks. I'm assuming a mechanical fuel pump that delivers 110 gph at 6 pounds is sufficient for my 383 stroker which has a modest 450hp with a 750 Holley double pumper? Automatic trans w/3000-rpm stall.

[@PetesGarage]

Sounds like a winner to me

[@Derekbitt1]

Hey Pete, what is your opinion on building an engine slowly, I'm talking over a period of about 2 years. I want to buy parts at about 2000$ at a time, rotating assembly, heads, fuel system, etc. can I install the parts as I get them over time? Or is it best to hold the parts till I have most of what I need, and install them together? Is there any considerations, things to look out for? Thanks DB

[@PetesGarage]

I have done that many times. As long as you keep the parts lubricated and dry it can be done. Cover it with a large bag, not sealed so it can breathe

[@Sloppyjalopy123]

This is why I'm a boost junky. Any forced induction increases the volumetric efficiency. More HP for your $$. But I also love my Ford 460👍.

[@PetesGarage]

Everyone has a preference. Boost costs and can fry the engine, but it does work well

[@vollickplaysgames]

ohh cool a cartb video... HEAD EXPLODES. haha learned a lot thanks ^_^

[@PetesGarage]

Carbs are fun, unless you're on an all protein diet : )

[@joelvallejo7451]

Pete's garage one of the best KZbin channels going on right now I have a question I don't know if you'll be able to answer it but if I'm running a 600 or 650 Edelbrock carburetor on a l98 engine ideally since I have a intank fuel pump what what will be the best intank fuel pump that you run

[@PetesGarage]

Thanks Seymour! Those are not very big, a regular fuel pump should be able to keep up.

[@joelvallejo7451]

Sorry about that what I was trying to ask is I'm running a 600 CFM Edelbrock carburetor what a intank fuel pump 255 LHP be to much even if I am using a fuel pressure regulator. Thank you for answering my first question.

[@PetesGarage]

No, the pressure regulator will keep it from over filling.

[@joer5000]

Hey Pete great video again! was i wrong to think that a double pumper is worse on gas for a street driven 383ci sbc, 550 hp, 57 chevy with Tremec 6 spd and 4:10 gears. Started with a QF 780 vac sec, went to a 830 double pumper and it seemed like the gas milage went down drastically? Also how about a video on choosing between say a BBC and SBC for a street car vs a Drag car. talking about the pro and cons would be a really good video for us viewers.

[@PetesGarage]

You can kill MPG with a 1 barrel if you stomp on it....lol. Keep your foot off the gas. I'll work on it

[@lawrencebarnes6893]

Great Videos. how much of the carb secondary setup applies to a marine application? I have a Chrysler 440, and it's my favorite part of the boat. Can do a series covering how to set up a 440 for a marine application?

[@PetesGarage]

I'll look into it, I'm building a carbed 440 right now. Maybe I can tag that on when I do the carb video

[@osvaldoalgarin7433]

Gracias,, Con el video logre entender como montar los rocker arms nuevos

[@PetesGarage]

Excellent!

[@zxtenn]

I remember when some joker with a stock GTO would throw on a 850 and get worse performance than a quadrajet -- You sure you what works and makes a good starting point I built a Yenko Clone and used a 780 W vacuum secondaries because I didn't have much $$$$, with slicks it bogged a bit off the line even with 456 gears, needed a good 800-8500 DP and single plane, still ran in the 12's like nothing with a crappy tune---

[@PetesGarage]

People think a bigger carb means more HP, but not true unless you can get more air in and out.

[@UsefulEntertainment]

Pete i need your help. I'm building an olds 455. It has forged flat tops 10 to 1, big valve aluminum heads. Cam specs are 520/542 lift 234-244 duration @50, an open plenum intake and long tubes. It's going in a 68 cutlass with an m20 and a 308 posi. I talked to holley and they pointed me towards a 770 vacuum secondary. Does that sound more than adequate for a street machine or should I step it up a little? Btw long time fan, I've been following this series for a long time and I always find myself re watching them. Thanks- Marty.

[@PetesGarage]

Thank you for watching Marty. The 770 is plenty, you may find yourself jetting down one or two, but it will work.

[@slimm9969]

Pete, thank you thank you for doing these well put together videos. I built my engine from the bottom up with your help. I'm currently tuning know and I would like to avoid paying the dyno guy to tune my carb. I bought a Holley kit with all kinds of jets, pump discharge nozzles, pump diaphragm, and power valves. Do you have a video on this? can you help?

[@PetesGarage]

Thanks my friend. You can do it by trial and error. It takes a while, but you can change jets and go by performance and exhaust smell. I've done and usually come pretty close. But for $250 the dyno guy will get it right on.

[@pakdefencewarfare7544]

Petes Garage sir i have changed my car engine assembly so thats its power geting low day by day while driving uphil it has not enough tourq to move up what i do plz tell me one more thing it has flectuation in rpm while driving 2nd gear its rpm needle move from one to 3 and then go down to 1 and it continues

[@jhjkrahn]

Hi Pete thanks for this video you seem very knowledgeable. I'm wondering if you can help me. I have a 79 chevy truck that we put a 350 into. It was built by a backyarder to race in his camaro. It has .030 over flat top piston, a 500 lunati cam, camel hump heads and 4 degree valve timing advance. The truck has 2:76 gears and a 700 r4. I know there's a lot going against us here but I'm having a really hard time with it stumbling on take off. I'm running a 650 double pumper carb. Any idea what I could try? Thanks

[@PetesGarage]

Stumbling at take off is a fuel problem, either too rich or lean. It could also be a vacuum problem. Check it at idle to see if it bounces

[@jhjkrahn]

@@PetesGarage Thanks I appreciate that

[@pickupgenius]

Good job Pete ! But What Holley carb for an 1966 GMC 3/4 ton , with a GM 80s NP440 4 spd (overdrive 4th) transmission , a fresh rebuilt 350 , mild RV cam , Edelbrock intake ? Other than manual choke I don't know if I go with vacuum secondaries , 650 cfm's or what . And I Haven't decided on what distributor yet or headers vs stock ram ex manifolds. Any suggestions ?

[@PetesGarage]

Thanks Teddy...if you're going for economy go with vacuum secondaries and a 600

[@joshuaholloway494]

Love your vids man. I am presently building a 1969 351 windsor .30 over roller cam with .50 lift with a 200 cfm flow heads at 10.5/1 compression. The car weighs 3200 pounds with 350 gears and a tko 600 trans. The equation says 614 on the carb. So a 650 mechanical secondaries seems the right choice. Did I track this correctly?

[@kobuskock6688]

Which I had your knowledge!

[@PetesGarage]

Wish i did too....lol

[@creedence1819]

Could you do a video on propane engines? What kind of dynamic comp ratios can you run on them?

[@PetesGarage]

I have a friend that is the worlds expert on propane engines. I will ask him if he's be willing to share some of his secrets

[@scottgradyharper7319]

That was a great video. Very helpful. Thank you. I have a 1965 Pontiac Catalina 2+2 with 421. Stock components in engine. I believe the stock Carter carburetor has a CFM of 575. Do you think it will be worth the trouble to bump it up to a 600 or 650? Mostly driven normally but would like to get on it every once in a while

[@PetesGarage]

Bumping up the carb will give you problems, it won't help unless it's jetted properly

[@WesternReloader]

Great video and it’s helping me get in the right area. My build is nothing new but my combo seems a little mismatched. SBF 331 bottom- 180cc -1.9 /1.6 heads, Slightly aggressive cam, dual plane high rise manifold, 4 speed manual, Bronco on 35s, 4300lbs weight. I’m wondering if 600cfm mechanical secondaries are good (confused because the weight says go vacuum secondaries, the manual says go mechanical, but the SBF 302/331 likes RPM, and I have no overdrive anyways, not a daily, not a rock crawler, just a big weekend Trail/cruising toy. Thoughts? TYIA

[@PetesGarage]

Thanks Rich, mechanical are good because you know they'll always work.

[@wkinne1]

Hi Pete, I just purchased a hot Rod with a 350 chevy with edelbrock performer RPM 6089 heads and a Comp Cam 12-212-2 camshaft. It has been board out 60 thousands but I know nothing else about the lower end. It has a tunnel ram with 2 Edelbrock 600's. It has mechanical secondaries. I know they recommend a stall converter which it does not have. I know I need to check fuel pressure on a hard take off but do you think my carbs are right and how important is it for it to have that stall converter? What size stall converter should it have? It does surge then hesitate sometimes on take off when I really get on it. It's a 31 Ford Coupe on a custom built frame so it weights very little. Thanks much.

[@PetesGarage]

That's a lot of questions. The stall converter is important so it locks up. It's too difficult to say without seeing it

[@albuckle7102]

Hello Pete. Great video as always. I think based on your video, a low compression 302 auto with highway gears in a classic mustang used exclusively for Sunday cruising would be happiest with something small like a 450 CFM. Sound right to you?

[@PetesGarage]

That sounds about right

[@albuckle7102]

@@PetesGarage Hello again. I installed a QFT 450 on my car and it seems to run well however my spark plugs insulators are bright white. Should I jet up a few sizes? Current primaries are 55, maybe go to 58?

[@zackboughter8101]

Great video! Very helpful for a young guy like me just getting into engine building. Is there anything I should keep in mind when using a tunnel ram? I'm working on a mildly built street/strip 350 Chevy backed by a 4-speed manual and 4.11 gears. Thanks!

[@PetesGarage]

A tunnel ram shifts the torque curve towards higher RPM. It will run a little crappy at idle

[@kevindurant3518]

hey Pete been watching all your vids and was curious im building a 360 mopar gonna have around 450 hp from motor would a stock 600 cfm edlebrock be good. would it be good if I upgraded the Jets and made it push more fuel?

[@PetesGarage]

Depending on the intake you use, that could work

[@lopon12]

thanks pete! good info, whats next? superchargers????

[@PetesGarage]

Fuel Injection is next. Then we prep and head to the dyno

[@Gary-lc7sj]

Hey Pete can you explain that 10 more times back to back

[@PetesGarage]

Sure

[@Pro12works]

Very interesting KZbin channel! I subscribed! Can you recommend any books on mechanical adjustments (camshaft, ...) and preparation of engines? Thanks

[@PetesGarage]

Thank you my friend....I don't know if there are books anymore. Everything is on the internet free

[@nicolasphair2067]

350 with .20 overbore. Hydraulic roller comp cam grind, 270/274, Lift .474/.474 its as big as possible to still use Vortec heads. Air-gap intake. MSD pro billet HEI distributor. Headers at least 1 5/8 primaries with dual 2.5 to the back. 4L80e auto trans. 3.75:1 gears. I have a quick fuel 750 double pumper but am second guessing if i should have gone with a 650 instead. thoughts?

[@PetesGarage]

Yeah that 750 is a bit big for that cam. You'd have to jet it down

[@rororod7513]

magnifique très bon travail

[@PetesGarage]

Merci mon ami

[@Rumeel12708]

Hey Pete do you know what's my best option to replace a 4180C Holley carb that came with a 1984 mustang V8 manual?

[@PetesGarage]

Best is up to you, but the Sniper system is great

[@littlewingpilot]

How about spread bore vs straight bore carbs ?

[@PetesGarage]

I'll have to get into that

[@brentgreen1434]

If starting a new motor that you want abou 550-600 hp would you rather build a LS. Or 351w

[@PetesGarage]

It depends what it's going in. The LS will cost less to get that HP

[@gbowne1]

I have the popular Edelbrock 2101 intake, that meant for a Quadrajet?? All I have seen mentioned was a Edelbrock #1406.

[@PetesGarage]

The carb pad on the 2101 is designed for a 4 barrel but I have seen 2 barrel carbs put on those.

[@LiLGuNz0713799]

when rebuilding an engine how do you set up the ECU or carburetor and spark plugs to both inject and Spark at the right times after disassembling everything and then reassembling them

[@PetesGarage]

If you do not change anything you should not have to. Spark is based on crank position and injection is based on cam postion.

[@silasmarner7586]

Does the vacuum reading at max torque occur when you rev u p a motor unloaded? I would think the vacuum reading would be radically different. But I am not sure of that..

[@PetesGarage]

No....it has to be under load in order to be tuned correctly.

[@kevindurant3518]

do you know of a site for 450 hp out of a 360

[@skyfual]

rebuild a chevy tbi 4.3 v6? can't find any nice videos on youtube.

[@PetesGarage]

I may have to. Getting many requests for that

[@dangerousfreedom4965]

Looks like you use a lot of #85 jets

[@PetesGarage]

It is the more common size

[@imgannadie991]

Pete, ive been following your engine building series videos and ive learned a lot. thank you for taking the time to do this for us. I do however have a couple of questions which I hope your able to either make a video about or possible answer if you are able to help.. my scenario--im building a 331 sbf stroker, im shooting for 10:1CR, cylinder heads have not been picked out just yet but I have an idea of what I want, I have 4:10 gears now with a t-5 5 speed trans, 275/40r17 rear tire which I think is 24-25'' tall, cam is not ordered yet because I want to match it with the heads and intake which I learned from your video. I want to carb this motor. my current setup in my car is EFI, ive been looking on summits website and seen that the holley blue pump is in the range that I needed for carb. I realize I need to know a whole lot more info before I can make a decision on carb size but I feel intimidated by this build just because I don't know all the answers I need. I hope this doesn't take too much of your time reading this. Thank you Pete.. I look forward to your next video :)

[@PetesGarage]

+david cabral You have the information needed to pick a cam that will give you the torques range for the tire size and gears. Take the time to tune the carb and you will have a great set up

[@imgannadie991]

Thank you Pete. Your a good man.

[@imgannadie991]

+Mark “Just-Plain-Joe” Crawford thanks for the msg. i have not yet reached out to them. simply because i dont know the specifics of the rest of my build. heads, carb size etc.. my car which is a 1989 mustang foxbody is not going to be built for the track but more of a street warrior..its my daily driver to work everyday during the summer here in canada. id enjoy to hear more about what you have to say. thanks

[@PetesGarage]

+Mark “Just-Plain-Joe” Crawford Awesome stuff....thanks for the comment!

[@INCC74656I]

i wish i had used your paint on my engine. i used PoR15 engine enamel but its not a 2 part and i sprayed it on after the block was tanked but its discolored in some areas now due to temps and scraped off in a couple places. all in all its not bright any more but rather a dim/flat appearance

[@PetesGarage]

Painting is not as easy as everyone thinks

[@INCC74656I]

no, its really not.... i used rattle cans a few times in the past but it always peeled off. so i thought hey, this time ima buy a real paint gun, use an air compressor, clean/etch the iron block and buy good paint. so i got por15 thinking no matter what this shit will work... its still on and looks loads better than any rattle can i have ever done but still... not the same as day one. ill see if i can find a pic of day one paint

[@INCC74656I]

not day 1 but after i got the body back on and engine droped back into the frame: imgur.com/mO8sWuM

[@lookitsdefendor1874]

Pete, this build series is amazingly informative. I just bought a 1995 mustang gt 5.0 engine. I'm looking to bore it out and make it a 347 stroker with a dual quad carburetor. how much am I looking to spend here for 450 to 500 hp?

[@PetesGarage]

Probably around $8k

[@lookitsdefendor1874]

+Petes Garage I can handle that. I was worried about 15 to 20. where can I find a good part list to build the 347 stroker?

[@d13bowman80]

I know this is an old video but I had a question. I'm building a 400ci csb for a truck that weighs about 5000 lbs and it has street gears. But a Manual transmission. Would you recommend vacuum or mechanical secondaries. I'm assuming vacuum because it meets more of the things you had listed for that category. Thanks in advance. I've learned alot just from watching your videos.

[@PetesGarage]

Mechanical is nice because you can adjust it, but if you have enough vacuum it's the way to go

[@d13bowman80]

Pete's Garage thanks for the quick reply it's very appreciated.

[@stevek3627]

Pete when I open up the engine full throttle I get the smell of gasoline come inside the car. Is this a sign of a carb issue? Too many or few cfm. Thanks Steve

[@PetesGarage]

What engine/carb do you have?

[@prkarpi23]

Hi Pete. It might be a typical question, but I need some help deciding on the carb for the FE390 '73 pickup with 35" tires, 4 speed manual and 4.10 in the rear, with non-ported 6090G heads, non-ported Streetmaster 390 intake, cam is lunati .213/.219 @50, .524/.540 lift and 112 LSA; springs with 312lb open, approximately 9.8 CR, and around 8.3 DCR. This would be a street performer and won't see any strips. I am leaning towards Quickfuel 780 VS. There are various opinions I read regarding 780CFM on a 390. Few builders recommend not to go past 750CFM on a 390. I know that bigger doesn't necessarily means better or faster. Looking forward to your response. - Nick

[@PetesGarage]

780 does seem a bit large. Did you do the air flow calcualtions?

[@prkarpi23]

Thanks for the reply Pete. I have done some calculations and results vary. With VE @ 80 the recommended carb is ~600cfm. With VE @ 100 the recommended carb goes as much as 735. But I know that VE @ 100 will not be happening with my built. Should I be leaning towards a 735CFM VS? I do not plan to rev up to 6500 rpm. Thanks Pete. Looking forward to your reply. -Nick

[@PetesGarage]

Seems to me a 650 is plenty....you can always increase jet sizes

[@prkarpi23]

I have a new 600 VS Holley sitting in my garage. Do you think I ought to rejet it and just use it?

[@drewobryant8295]

Dumb question.... how am I supposed to know dyno numbers or even get my engine tested if I haven’t picked out a carb or fuel pump yet?

[@PetesGarage]

That is part of the planning process. You build an engine with a HP goal and that leads to a certain amount of air and fuel needed.

[@jonathanbosco8458]

Great Video, GO FOR THE PHD ASAP THANK YOU

[@PetesGarage]

+jonathan bosco Yeah...I need to finish that

[@jonathanbosco8458]

You will, not for the fame or prestigious, the love of learning.

[@PetesGarage]

That's the reason.....never stop learning

[@Cruisingthesouth]

Hello my friend thank you for the video quick question I have tween 454s sitting on a 34 foot Sea Ray my manual says my wot is at 4400 so that would put me at a 600 cfm carb correct?

[@PetesGarage]

On each? It may be closer to 650

[@Dboyquicks10]

@@PetesGarage I'm late to the show but I would really benefit from your wisdom. I have a S10 with a mild 350, about 500 lift cam, warmed up vortec heads and th350. I think I need 650 cfm with mechanical secondaries. Does that sound right. Thanks for the video. New sub.

[@cuzz63]

@@Dboyquicks10 650 sounds right but why mechanical secondaries? What are you doing with your S10?

[@Dboyquicks10]

@@cuzz63 I'm just trying to get the most out of it. See there's this guy down the road with a quick nova. I need to bring him down a few notches. Lol

[@cuzz63]

@@Dboyquicks10 ok, its cool. S10's can be pretty quick if you can get them to hookup. You follow Eric Weingartner ? he has an S10.

[@benmyers4650]

HI Pete had a quick question is that you or your brother doing videos under Tire Iron name about guns and such enjoy both of your channels and kind of look alike , thanks,,,

[@PetesGarage]

No, I had to look at it out of curiosity

[@benmyers4650]

thanks Pete thought I was seeing things but the way he explains everything about the firearms he was showcasing sounded like you with the detail thanks again

[@benniemusgrove8271]

Any particular vacuum gage you would recommend?

[@PetesGarage]

The ones from Harbor Freight are ok

[@benniemusgrove8271]

@@PetesGarage thank you

[@patw52pb1]

What is fuel "plating"? Can you cite any reference material?

[@PetesGarage]

+patw52pb1 No....but you are free to cite mine

[@gbowne1]

Max RPM @ Wheelspin + Torque & HP? I see a lot of engines run good at 500 through 3k RPM. But it gets iffy under 1k, and it hasn't seemed to matter what kind of engine.

[@PetesGarage]

That is true. At idle the engine needs to spool up in order to start producing HP.

[@zaygomez531]

Hey Pete how much was the total of your engine build when you were done?

[@PetesGarage]

It was $15k

[@Djm9393]

bro can you explain to me the concept of balancing your engine n why it is important hp wise

[@wolfy9005]

tl;dr - harmonics, friction, etc

[@PetesGarage]

When you balance all of the parts you eliminate vibration which steal HP. The vibration will also cause parts to wear faster not to mention shake the hell out of your car. When you buy parts they are balanced, but they must be put together and balanced as a system.

[@kevindurant3518]

bigger jets or no?

[@PetesGarage]

probably

[@edge2sword186]

Knowing how to read a spark plug helps it tells the story by color.

[@бисноват-в3ъ]

hey pete is there any way to contact you by mail or something?

[@PetesGarage]

[e-mail]

[@patw52pb1]

Sorry , but Holley carburetors do not have metering rods.

[@PetesGarage]

+patw52pb1 I did not say they did...the fuel is metered by vacuum signal. I am speaking in general terms...it's not meant to be specific

[@EscapeSinceError]

Hi Pete! I was just about to ask you when this video was coming out :D This is awesome series, I came here with basically 0 knowledge but after this series(watching only one every video) I know thousands more. Its clear, simple and really good explanation! Thank you! :) Ps.: I'm definitelly going to build my engine right away :D Can I also ask, how much time and money this engine consumed? Also would like to ask if you know a "budget" engine with min 400 max 500 hp for street racing(with turns and stuff) which consumes around 22-30 mpg? Or is it even possible? :D

[@PetesGarage]

+Dávid Turner That's awesome! If I was just building the engine I could have it done in a couple weeks. Right now there is a little over $16k wrapped up in it. If you want budget HP a crate motor is the best way to go.

[@EscapeSinceError]

Wow, thank you very much for the fast answer! :) Keep up this awesome work! :) Kind Regards, David

[@harrisonbrown672]

Hey Pete

[@PetesGarage]

Hey Harrison

[@flyhouseoftruth470]

hi, The engine is a 302 5.0 stock 1995 Mustang GT. Going in a 1991 Ford Ranger, with a Elderbrock RPM air gap intake. What is the ideal carburetor for that setup? Oh, it's a 5speed if that makes any difference. Still don't know how I'm gonna make the clutch work (cable clutch going to hydralic pedal) Any ideas?

[@PetesGarage]

How much HP?

[@flyhouseoftruth470]

IDK, whatever the Mustang GT had

[@PetesGarage]

A standard cable clutch is fine

[@flyhouseoftruth470]

How do you make it work with a hydralic pedal?

[@PetesGarage]

You need a booster for the pedal and an actuation cylinder at the clutch

[@Shade_tree_garage01]

You can build the engine you have for like 3-4K

[@PetesGarage]

I could build it for $500

[@joepublicish]

Not trying to be an ass here, but your VE calculations are really only applicable to naturally aspirated applications. Any intention on covering the FI side of things at some point?

[@PetesGarage]

Yes, I am working on that

[@dne1301]

With all due respect, I cringe every time you refer to "metering rods" in a Holley carburetor which has "jets" not metering rods... I actually like the Holley carbs better because of that particular detail... Again, no disrespect intended but I'm a bit OCD when it comes to details and terminology... That being said, keep the videos coming... I love watching and learning...

[@PetesGarage]

You're right, I said that wrong. Next one I do I'll use the correct nomenclature.

[@TheCgrules]

Do all engines have carburetors,

[@PetesGarage]

No, a fuel injection engine just has a planum with an air control.

[@TheCgrules]

Pete's Garage is their a special way the engine is set up for fuel injection instead of a carburetor?

[@PetesGarage]

Higher pressure fuel pump, regulator, fuel injectors, computer, and throttle bodies

[@Jer872]

That formula doesn't work for all motors I put a 680 quick fuel on my 71 demon 340 and it was starving for fuel, it likes a 750+ and by that formula I should be running a 600 witch is way too small for that motor

[@PetesGarage]

Of course it's not for all motors. It's just a starting point

[@cruiseaowoo2495]

can i tranport these video to bilibili (chinese youtube)?

[@PetesGarage]

I didn't even know there was a Chinese KZbin

[@cruiseaowoo2495]

Pete's Garage “Bilibili” is Top1 video sharing website themed around animation, comic, and game (ACG) based in China, where users can submit, view, and add commentary subtitles on videos. It’s popular in Chinese juvenile. Your knowledge expressed in video is really novelty and scarce, maybe it can induce some younger devote themselves in future automobiles industry🌝

[@PetesGarage]

Cruise Aowoo That is interesting, but I'm not sure how I would get paid. I'll have to look into it

[@cruiseaowoo2495]

Pete's Garage Just upload videos in bilibili , you will not get pay💰, but it may ascend your fame in Chinese ... the only way to win money in bilibili is live show, just like Facebook live, let the fans pay you...since there is no ads in bilibili, they would not pay money accord network drive😑

[@honna4949]

hey pete, what is your email. i have some questions i would like to shoot to you. really appreciate the videos, keep them coming. best wishes.

[@PetesGarage]

[e-mail]

[@grimm2354]

How much to you charge to build a engine

[@PetesGarage]

It all depends on the engine and what performance level you are looking for

[@grimm2354]

Well I have a 2012 ford Mustang v6 and I wood like to upgrade to a v8 with 500hp that can handle the abuse my v6 can't I thought she was good until I drove a boss 302 that made the hair stand straight up on my skin then I realized I bought the wrong car my mechanic skills are about 5 on a scale to 1 to 10 just don't have the tools to do it my self so can you help my girl in need she is my first love just don't tell my wife lol

[@PetesGarage]

I'm more than happy to help

[@grimm2354]

Ok how much will a 500hp engine with used parts cost your best guess

[@PetesGarage]

$10k

[@aj06bolt12r]

You do know that max torque is not achieved at redline don't you? Do you mean max horsepower?

[@PetesGarage]

Depending on the engine, you will see max torque then max HP well before redline.

[@aj06bolt12r]

Yessir. So do we measure the vacuum at WOT to determine correct carb size at peak torque, peak horsepower or redline?

[@PetesGarage]

As a general rule, WOT at peak HP.

[@user-wk5rf6bb2e]

first comment

[@PetesGarage]

+‫م.مصطفى صلاح‬‎ WOO HOO!