I swaped the firing order on my single cylinder 2 stroke didnt notice much difference
@petittoto74334 жыл бұрын
I did it on my bike too, no change... 1-2-1-2...
@ronyoung60544 жыл бұрын
@Swadian Knight lmao
@someguy9364 жыл бұрын
thats rich
@KnifeSlice45014 жыл бұрын
I heard Maurice saying that
@Hanzyscure4 жыл бұрын
You gotta swap out the cam for it to work.
@ericjswindle4 жыл бұрын
Glad I’m not the only one that knows that about ford’s firing order. Most people just look at me like I’m crazy when I try to explain it to them.
@jaedendeboer7654 жыл бұрын
That would be a cool engine masters video comparing different firing orders
@Ltmonte4 жыл бұрын
THIS is something I’ll be heavily looking forward to seeing on engine masters, since my 350 has most likely wiped a lobe. I’d love to see it done on a small block or something mild.
@donrutter67654 жыл бұрын
I wiped a lobe last year. Now my oil pump only puts out 20 psi at idle, 50 psi @ 4000 rpm.
@dasboot94712 жыл бұрын
You’ll make a hair more power going with a 4/7 swap…worth the cost of the custom cam? Not much more than any other custom cam
@burntorangeak4 жыл бұрын
I feel better about my organizational skills after seeing this.
@chucksgarage71654 жыл бұрын
Built a 302 years ago and wired it up with the 302 HO firing order. Never figured out why it wouldn’t run. Towed the truck to a mechanic and he got it going for me. One of those things you learn the hard way.
@hendo3374 жыл бұрын
Dave, that is a hell of a deep hoard in that shed. I would love to see a show where you just build something with a 35yrs worth of junk in a building.
@larney373 жыл бұрын
well that comment aged well :)
@jeanborsoi6627 ай бұрын
I did it in my type 1 aircooled engine. Swapping from 1,4,3,2 (stock timing), to 1,2,3,4. It works very good, and I notice gains at middle and high rpms. Great content bro!
@RustyorBroken4 жыл бұрын
There's another piece to the puzzle here. Engines are capable of changing the firing order on their own without requiring a cam change. I've seen it first hand. My '99 F150 w/ 4.2L went from 1-4-2-5-3-6 to 1-4-2-_-3-6 immediately after throwing a rod. I was towing a trailer of about 6k lbs and made it another 10 miles before the firing order changed one final time.
@scowell4 жыл бұрын
Don't forget... you also have to swap the plug wires... it's not just a camshaft change! Loving the cheap camera content, subscribed!
@dielauwen4 жыл бұрын
The reason they used 18436572 is to force exhaust through the crossover passage to warm the intake manifold and carb to prevent Carb icing , It does taste like gas so do not lick it. It also causes that off note in the exhaust sound as well as reducing the expulsion of gasses. With fuel injection you don't need to do this .
@michalisaristodemou44214 жыл бұрын
Bet u david made this while wearing flip-flops
@markvaughn4614 жыл бұрын
You can hearem as he walks off
@zz7qvl4 жыл бұрын
My 4/7 swap 540” has had the same main bearings for about 4 years 400+ passes, 2 sets of valves springs. Spinning to 7600. And they still look great. So I’d say, in a high rpm application it’s easier on the main bearings. A stock firing order stroker BBC spun high is tough on the mains.
@russrogers3106Ай бұрын
I learned something I never knew about FORD firing orders! Thanks Freiburger!!!!
@anthonysgarage2 жыл бұрын
The 351W has had the late firing order since its inception in 1969. So Ford had the LS firing order since '69. That's why Windsor motors and H.O. 5 liters always sounded so good.
@stevie..d..pontiactransamm12154 жыл бұрын
Warren Johnson was doing the 4,7,2,3 swap firing order back in the late 60's with a SBC 350 with 6 inch old's connecting rods. He brought it to the KALITA TEAM BACK IN 95 WITH THEIR MOPAR PROGRAM. THEIR WOULD BE ANY GM WITHOUT WARREN JOHNSON/SMOKEY YUNICK. THE NASCAR 4 PATTERN CAM IS ALSO INTERESTING WITH A SINGLE PLANE INTAKE.
@j.nilsson53624 жыл бұрын
You forgot to explain WHY??!
@NN0722884 жыл бұрын
That is what I was wondering. I have heard of this and people doing this, but why?
@XxMusclecarsxX4 жыл бұрын
@@NN072288Helps #7 to not be starved from #5 that's sitting next to it and taking its intake mixture right before
@snake_eyes_garage4 жыл бұрын
The why was to sell t-shirts 😝
@bowmanjim314 жыл бұрын
For more even fueling to help cyl 7 from running lean and to keep that corner of the engine from getting hot
@cmarshall45594 жыл бұрын
Exactly so frustrating. I kept waiting and nothing!
@bigmike88474 жыл бұрын
I remember hearing something about this wayyyyy back in the day on Powerblock TV. Good to see I didnt imagine it
@farmerjim-fat-man-do4 жыл бұрын
If you renumber the cylinders on a SBC the firing order is the same as an early ford 302. The HO 5.0 firing order used on later engines uses the 4-7 swap. The 5.0 firing order sounds different (as does the the 4-7 swap on a SBC) when running but i dont think power is any different. Would like to see results of using a cam with same specs on both firing orders. Long term reliability of engine may be effected by the swap.
@farmerjim-fat-man-do4 жыл бұрын
Guess I should have watched the video before commenting🤣
@MaxAC4 жыл бұрын
Thank you!!! Ive heard of the 4-7 swap since I was in high school but never seen it done. I heard of a few people just swapping spark plug wires but that was stupid to me and they said it didn't work too well. Thanks for explaining it better.
@milojanis49013 жыл бұрын
NASCAR Chevy based V8s run the 4/7 swapped firing order. There IS a reason....
@Abb0nz14 жыл бұрын
This is one of the best trivia information videos you guys have produced! Thanks!
@TheCanadianBubba4 жыл бұрын
That shed looks like a "cave of wonders" for gearheads : ]
@hendo3374 жыл бұрын
He's got a deep hoard in there.
@eldonerc25244 жыл бұрын
So if I turn the shirt inside out does it give me more power?
@Hanzyscure4 жыл бұрын
Yes ! But it has to be backwards. With the tag in the front.
@aol114 жыл бұрын
No no no, then it will fire on the inside
@Colt-tf6xf4 жыл бұрын
Eldon Erc if you put the shirt on a beach bunny, the firing order will go variable when she's jogging
@desertfunoffroad8824 жыл бұрын
Awesome video thanks so much can't wait to show it to a couple customers you explained way better than I can
@chucknixon14 жыл бұрын
Wow, a Freiburger video I don’t have to pay for! I figured he forgot about what made him such a star.
@davidnolte31934 жыл бұрын
love your shows. hope to meet you and the roadkill crew one day. burnouts forever....
@jasonlessard23734 жыл бұрын
My machine shop recommended this when I did a no budget rebuild on a 289. We used a HO 302 cam
@ViewThis.4 жыл бұрын
For a long time I kept Knocking, asking for Dave, and someone kept saying "Dave's Not Here" I've been wondering where he went.......But look !!! *Dave Is Here !!*
@hendo3374 жыл бұрын
It was Cheech and a Parrot.
@michaeljohnson4044 жыл бұрын
I see your making good headway on cleaning up the garage.
@ViewThis.4 жыл бұрын
I used to think that all you had to do for the 4/7 swap was swap the spark plug wires. So I did. It was a 406 sbc. I didn't know at the time it also required a special cam. My way of swapping made no difference that I noticed. That 406 rand so good even on 7 cylinders, so my screwed up swap just wasn't noticeable.
@jacquescrusan95004 жыл бұрын
For those of you wondering about the significance of the 4/7 swap and why this is important/worth doing (bear with me, this isn't an easy or short explanation): Note: I'm basing the history portion off of what I've been told by local engine builders and my dad/grandpa; the rest is based on college-level understanding of metallurgy, fluid dynamics and heat transfer... Way back in the golden era of hot-rodding (early 1960-s to early 1970's) drag racers were starting to climb towards the maximum of what their vehicle's engines could achieve, which led to finding the limits of stock hardware. However, there were a few problems that were commonplace amongst the hot rodding community that no one seemed to be able to escape. This phenomenon was what's called (and I'm ad-libbing here because I don't know the correct terminology off the top of my head) butting the ring ends. Butting ring ends together happens when cylinder temperatures get too hot, allowing excess heat to be retained in the compression ring material. As material increases in temperature, it tends to grow in size (volume), and this expansion process follows the path of least resistance, which ends up with rings growing to a larger diameter than normal, which shrinks the ring end gap. This continues until there's no room left for expansion, and then suddenly, the ring ends butt together, then simultaneously catch on and seize to the cylinder wall. Since there's not a lot of piston material above the compression rings, the piston material fails under tensile stress, fracturing into multiple pieces and causing catastrophic cylinder damage. So the question is: how does this happen? The main culprit is the design of the engine block itself. Back when the Small Block Chevy (sbc) was introduced in 1955, it was designed to be a relatively simple engine. However, this came with a myriad of problems once the design was pushed well beyond it's intended purpose. The most damning of these shortcomings was the design flowpath of the engine's coolant through then engine block, combined with the other culprit: the stock firing order. As Freidburger stated earlier, the firing order for most classic american V8's was 1-8-4-3-6-5-7-2 (when looking at it through the layout of a chevy engine). The coolant flowpath through a sbc goes from the water pump, into the front of the block, through the water jackets to the back of the block, then up through the cylinder head, into the bottom of and through the intake manifold, then through the thermostat and its associated housing at the front of the intake manifold, out via hose into the radiator to cool off, then sucked back into the engine via water pump once again to start the flowpath once more. This is where the issue resides. For context, there's always one pair of cylinders in a crossplane V8 that are part of one cylinder bank that fire right after one another, that are located right next to each other. For the original sbc, this is cylinders #5 and 7. For the late model Ford Coyote 5.0 V8's those cylinders are #4 and 2 (still using sbc numbering) and for LS/LT engines, the cylinders in question are #3 and 1. These two cylinders firing right next to each other AND right after one another generates a 'hot spot' in the engine; a concentrated are of higher temperatures compared to the overall engine. So the issue with sbc's and their original firing order is that it places the 2 consecutive cylinders at the back of the engine, which is furthest away from the coldest coolant entering the engine (remember that coolant flows from the front to the back of the block). This presents an issue where the two hottest cylinders are receiving the lowest amount of cooling. Hot cylinders transfer heat to compression rings, which causes ring ends to butt together, which causes the failure that i mentioned above in paragraph 3. So how do you fix this? Simple. You move the hot spot as close as possible to the front of the engine, where the coldest coolant is. Granted, this doesn't 'get rid of' the hot spot, it moves it to a place where it can't cause damage to the engine. So now you've done the 4/7 swap. What does that mean? It means that now our firing order is 1-8-7-3-6-5-4-2. This means that our two hot cylinders are at the front of the engine, on the passenger side, identical to a Ford Coyote (funnily enough, doing a 4/7 swap on a sbc dues give you an IDENTICAL firing order to a Coyote...), and now the problem has been mitigated. I hope this helps. *Side note: Due to the more even firing order between banks, this configuration tends to have better fuel-dispersion properties, meaning that your air-fuel ratio disparity between cylinders is decreased by a noticeable margin.
@unclecowboy2003 Жыл бұрын
Hi your explanation is fairly correct but we always were taught to file ring end gap for expansion and the 4 7 swap cam was used in corvettes as early as the late 50s as I was taught that from a gm engineer that worked on them anyways thanks for your explanation it was great
@Mattlt14 жыл бұрын
I can listen to this guy talk engines all day!
@zsoro4 жыл бұрын
U know what, even tho I know most of this, it was good to have U dumb it down and explain it for others to know and get it, thank U, keep up Ur amazing work U do, love all roadkill shows
@SpeedandChromeTV4 жыл бұрын
Love the sound of the early yblocks, they have a distinct hot rod sound.
@skatedoof4 жыл бұрын
Slightly different question: Why was the firing order engineered as it is if the swaps have benefits? Do they have any negative side effects?
@bgd734 жыл бұрын
the shared rod pin is theory, not actual physical rotation balance.. hence options. You can have a self balanced v8 with benz crank throws.. but engineers are afraid of it (note the benz crank is not a flat plane... totally different).
@snek93534 жыл бұрын
The only real benefit is to intake and exhaust manifold design. With 18436572 5 and 7 are right next to each other and fire one after another. So if those two cylinders share manifold passages the flow of one disturbs the other.
@DieselRamcharger4 жыл бұрын
@@snek9353 you spread misinformation on so topics across so many videos. i find it hilarious.
@DieselRamcharger4 жыл бұрын
torque. sound. why wasn't the LS designed before the SBC? because lessons learned drives progress.
@DieselRamcharger4 жыл бұрын
@@snek9353 harmonics, scavenging, heat dissipation. there are lots of "real" benefits.
@andybobandy6414 жыл бұрын
Good stuff David, however you failed to mention the purpose of changing the firing orders. Why would you even do this?
@knowbull5hit5904 жыл бұрын
Andy BoBandy yeah i was hoping for that explanation too
@chikitabowow4 жыл бұрын
He put the explanation in the description, i think when you have as much info about engines as Freiburger has knocking around up there i think it's alright if they overlook some explanations sometimes haha
@andybobandy6414 жыл бұрын
@@chikitabowow There was reading involved?... No wonder I missed it. :)
@garybrinker45224 ай бұрын
To help the rear of engine stay a bit cooler.
@shroom9034 жыл бұрын
That's wild about the ford small block and sbc firing order. I knew the cylinder's were marked differently but never tried to decipher it. The number came out to 21843657 sbf numbered like a sbc. Same rotational order
@RebeldryversGarage4 жыл бұрын
Did I spy a 598? You were always good at explaining these things so the non-experts can understand these technical things.
@NorthernChev4 жыл бұрын
Fantastic... So... why didn’t you explain WHY the swap is done or to what advantage there is?
@TorontoModifiedKarKlubАй бұрын
I thought I had seen all your videos in the past. Looks like I missed this one.
@rafatrill4 жыл бұрын
I actually didnt know this I learn something new
@petewiltfang4 жыл бұрын
Same here. I've known Chevy v8 firing order since I was 13. I'm 66 now but never heard of this. Yep, you can teach an old dog new tricks!
@500kchevrolet9Ай бұрын
I read the description and understand the benefits of this swap...this is the first time I've heard of this. If there ever comes a time when I need to rebuild the lower end on my 5.7 TBI, 500K mile 91 OBS Chevy truck, will the cam shaft be WORTH the extra cost? I expect exhaust note might change? I'm a big fan of a strolling(slow,smooth) idle that i can feel every power stroke. Will that be affected?
@larney373 жыл бұрын
Holy cow! What an amazing video.
@DrGand4 жыл бұрын
Thanks for the shirt Dave! Just ordered mine. What's the purpose for the firing order swap? Why would somebody build an engine with that?
@jnsmoparable4 жыл бұрын
Hey man you guys should make this an Episode of Engine Masters 👍👍👍 do some Dyno comparisons on it
@novusbuildcraft14004 жыл бұрын
I want to see you and Richard Goldener do a side-by-side video showing power loss on a LS engine going from it's standard firing order to a SBC firing order.
@milojanis49013 жыл бұрын
Why would you want to see a swap that deliberately tries to lose power? A better swap would be to show power GAIN on the original SBC with an LS firing order......
@b.s.adventures94214 жыл бұрын
I thought that was the deal with fords firing order but never was sure. I also assume that’s why the 80s 90s 5.0 H.O. Have a slightly different sound to em. They sound awesome.
@DaveMcLain4 жыл бұрын
On a 90 degree V8 with a 90 degree crankshaft you will not hear any difference in sound due to firing order. Why? Because no mater what you do with the firing order you still always have two cylinders that fire 90 degrees apart on each bank.
@markvaughn4614 жыл бұрын
I had a small heart attack when i found out my cam for my 302 had the H.O. firing order since my 302 isnt an h.o. then i looked into it and realized itll all work the same, if not better. 😊
@eldonerc25244 жыл бұрын
Biggest thing on the ho Ford is the distributor is on the other side of the cam so it rotates backwards. Changes the numbering on the cap.
@lucascady49924 жыл бұрын
13726548 302H.O. firing order..
@ldnwholesale85524 жыл бұрын
Chev firing order is shared by some Fords as well. Just Ford calls the cylinders different numbers.
@louidog563 жыл бұрын
That’s the firing order of my ‘62 Buick. I’ve had it memorized for years.
@williamaker78034 жыл бұрын
On most Ford V8s the left bank is forward of the right bank but they still start the numbers on the right.
@justincooper51894 жыл бұрын
Makes me wonder what a 454with a flat plane crank, and the 4/7+3/2 swap would sound like.that is, if those swaps can be done like that with that type of crank. I'd like to try that, but not with a production iron block 454. After all, if it works, why have all that weight? I'm thinking all aluminum big boy under the hood of maybe a lighter car like a nova or corvette.Hey Dave, what are your thoughts about the combo I mentioned?
@TRX450RVlogger4 жыл бұрын
I discovered this with my 1990 Bronco it has a 5.0-302 but has the 351-5.8 firing order. My neighbor is a Ford Mechanic it turns out someone in the past has installed a 351 Windsor cam in my Bronco.
@Motor-City-Mike4 жыл бұрын
I've read articles from several top name engine builders and they seem to be split right down the middle on this subject. It's sound reasoning that it should be effective, but it just seems odd that not everyone is on the same page.
@charlesware36984 жыл бұрын
Love the show.. thanks lots of fun to watch...
@smokenchoken17364 жыл бұрын
Also note... the 4/7 swap actually changes it to the Flathead Ford/Buick Nailhead pattern!!! Now that 2 of the 4 patterns have been discussed then theres the modern hemi pattern and the last one is the flatplane like the 5.2 voodoo
@tylersgoatinsurance70814 жыл бұрын
Cool video David! I love watching Roadkill and Roadkill Garage on Motortrend!
@LgSutterby4 жыл бұрын
Nice lil shoutout to the big inch Caddy 👌🏻
@WilliamMoser4 жыл бұрын
Here's what the 4-7 swap looks/sounds like kzbin.info/www/bejne/d5Xck5iad5yeZ6M. Interestingly a crossplane V8 has 8 possible firing orders - 4 of these fire all cylinders in one bank followed by all cylinders in the other, no production engine has used that. It gets confusing because of differing numbering conventions (as you mentioned) but from what I've seen only 3 of the remaining sensible 4 firing orders have ever been used. Not sure why.
@thomasbradley78444 жыл бұрын
It helps with heat between cylinders and makes for a smoother running motor
@jeepinglife75834 жыл бұрын
Hey was up ✌ keep it up david I'm a huge fan thanks for the infomartion
@pwdrhnd234 жыл бұрын
But you left out why, to swap cylinders... I am sure there is an awesome hot rodder reason and l look forward to learning it from you!
@danieldimitri61334 жыл бұрын
The actual issue is nobody really knows. The explanation with the intake manifold is bunk. Sure you break up the 5-7 pair but you create a 4-2 pair or a 3-1 pair. The only thing that we are certain of is that the ls and ford ho pattern has more even bearing loading since an entity as large as Ford took the time to study it. The 4-7 swap should be similar as both orders fire from cylinder 8 forward with 1 cylinder as an exception being #3 for the 4-7 swap and #2 for the ls/ho firing order. While the traditional order jumps around more.
@garybrinker45224 ай бұрын
To help lessen heat buildup in back of the block,,sense coolant flows from front to back of block..(Told by another comment above)..
@tom64932 ай бұрын
Ford have other oddities too. Their inline 4 Kent engines have a 1243 firing order, as opposed to the “normal” 1342 of most other 4 pots and fords own later engines, like the Pinto.
@rondyechannel13994 жыл бұрын
Crane cams sent me a Cam for a 5.0 SBF that had the firing order from the 351 Windsor. The cam card was wrong and by the time I figured it out the flat tappet cam went flat from attempted starts. Of course Crane just wanted to replace the cam, even though I had to do a complete rebuild! Negligence as far as I'm concerned, what do you think?
@boosted_l67874 жыл бұрын
Hell yeah I'm glad I found this channel
@king0cans4 жыл бұрын
Id really like to dig through that garage.
@slotcarsallaboutslotcars37304 жыл бұрын
Very informative , thank u Sir.
@timc85514 жыл бұрын
Is there a future engine masters episode to do a good old comparison of the swaps?
@Mikey-jm3dc4 жыл бұрын
At least motor trend can't take over this channel, I hope
@lilorbielilorbie24964 жыл бұрын
Mikey Don't be to sure about that.
@Sandkei4 жыл бұрын
I think he does these to try & drive traffic to MT
@lilorbielilorbie24964 жыл бұрын
Sandkei If anything, It's driving me Farther away from mtod.
@lilorbielilorbie24964 жыл бұрын
bigpigslapper Oink I am not missing out on anything. I sub to Mike's you-tube channel that's good enough for me. Why do people whine and cry about it your words not mine, The fans made Roadkill what it is today and they feel like they have been stabbed in the back. Because everything no matter what , It all comes back to money.
@dav83884 жыл бұрын
@bigpigslapper Oink I'm 100% with you. It's because they feel like they should have to get everything for free. Nevermind that RK has a high production cost, and youtube wasn't paying the bills anymore.
@davidjames27884 жыл бұрын
Just placed the order for this shirt, and the Crusher Wheelie hoodie last night.
@Twobarpsi4 жыл бұрын
What about 8675309?
@hairlesscat64586 ай бұрын
I’m sad this comment didn’t get the recognition it deserved
@boblang409Ай бұрын
gotta have to ask Jenny
@williamquire21154 жыл бұрын
I always understood the 47 swap made more power but also created more vibrations in the small block chevy. Never tryed it myself
@ziggassedup4 жыл бұрын
Holden V8 is 1-2-7-8-4-5-6-3.
@cerneysmallengines4 жыл бұрын
Why would you change the firing order. Is there an actual reason, like does it even out the noise, make the engine run smoother?
@CrawldaBeast4 жыл бұрын
Funny thing, this still doesn't cure the traffic jam that happens on a V8. I'm talking about the left-left then the right-right in the firing order. That makes balance/H/X pipes more necessary.I like the 6cyl concept, L,R,L,R,L,R or F,B,F... the firing order is balanced. Split a six and you have two 3 cylinders 180 out of phase from the two pipes. That's what gives them the bad rap. I wonder what a perct L-R exhaust note would sound like from a V8?
@davidraddatz3804 жыл бұрын
Sounds like an engine masters video to see if doing thise swaps on a 350 make a difference in power and torque.
@kakswell4 жыл бұрын
the aussie 304 v8's firing order is 1-2-7-8 4-5-6-3
@Danfunnyman12344 жыл бұрын
Brings me back to thermodynamics in junior year of college, we spent maybe a day talking about ICE engine strokes. I wish I knew more about working on cars :( But if I ever have to read a psychometric chart,thermo prepared me for that.
@shauncummings86064 жыл бұрын
Great explanation, well done.
@keithfilkins2043Ай бұрын
Thanks Dave
@lewisbradford33054 жыл бұрын
Why would you change the firing order? Benefit?? Just curious
@glutten13864 жыл бұрын
Nice to see you back with the common folk. Lol. Ordered mine.
@alexmoore988910 ай бұрын
I watched this twice, and I never saw where you explained "why" a person would want to change their early SBC firing order - what the advantages would be? Maybe I just missed it, but I don't know why a person would want to do this . . .?
@TheDavidFreiburger10 ай бұрын
You’re right…that’s why my next video was the “why.” Basically, it can run smoother and usually makes a little more power.
@matterantimatter14 жыл бұрын
all my life i been learning about cars ,but never once have i heard about firing pairs of cylinder swaps be a thing.... so my question is what does it do?
@XxMusclecarsxX4 жыл бұрын
It's to avoid starving cyl 7 because 5 fires right before. Atleast that's what I've been told. #5 would suck in the mixture and right after #7 thats right next to it gets the left overs
@T..C..M4 жыл бұрын
@@XxMusclecarsxX but why would they bother on the Ford H.O. and the LS? They both have sequential multi port efi?
@rosegold23834 жыл бұрын
My firing order is Two-eight- one-three-three O-eight-zero -zero-fo' Hit Mike Jones up on the low cause Mike Jones about to blow! 🤷🏼♂️🤣 In all actuality, I enjoyed the video. The factory V8 in my 1978 Monte Carlo could really use this swap.
@AiOinc16 ай бұрын
Gotta love how Ford can look at an industry standard and think "No, I'm going to make it difficult."
@reverendlawrence75844 жыл бұрын
Furburger is awesome
@davidpittenger37874 жыл бұрын
It's great to explain that they can be changed by cam, now how's about WHY?????
@harrison4ever1254 жыл бұрын
Awesome information! Would like to know a little more about why swapping the firing order offers an advantage and should it only be done when swapping camshafts or is there an advantage when the engine is stock? Also does this also work on modular V8 engines like the Ford 4.6?
@jackmagnium61152 жыл бұрын
probably if u can swap both cams. since the 4.6 is SOHC
@jesuslightsmyway4 жыл бұрын
Man your garage looks like mine, throw nuttin away. I finally started tho. Feels good
@privateparty49004 жыл бұрын
The two things that every internet/old-school car guy knows are that: 1) Back pressure makes horsepower. 2) Different firing orders (on a cross-plane V8) sounds different. Hey, maybe they all still feature two opposing-bank pulses followed by two same-bank pulses... but whatever. It's that TONE. Bonus: 3) The two-man bleed is obviously the best, most efficient brake bleeding technique. Open the bleeder with a clear hose (if you want to see what's happening) attached running vertical and just pump until bubbles stop? Blasphemy.
@AlexM-tx2vr4 жыл бұрын
Ok Dave, so what? Why would I want to do a 4/7 or 3/2 swap? In other words, what are the pros and cons of the different firing orders? I am sure it has to do with air deliver but it would be nice if you walked us through it. -Alex
@bobfiesel Жыл бұрын
You should make the firing order shirt with the 4/7 crossed off and put them above the other number
@2000freefuel4 жыл бұрын
Dave, why not have a Twingle cam cut? one that fires a pair of cylinders at the same time. should be easy with coil pack ignition modules.
@Psalm139Godslove Жыл бұрын
Great video!
@ericfaley90194 жыл бұрын
Did not mention the advantages! I know the 4-7 swap is for cylinder reversion of cylinders 5-7 in the exhaust but 3-2 what is that for?
@tylermorgan10604 жыл бұрын
I lov this Stuff
@ps4gaming9504 жыл бұрын
I need one for my car. I was just talking about this with my uncle on Saturday
@robsorgdrager84774 жыл бұрын
But what's the overall benefit of changing the firing order?
@michaellinner777211 ай бұрын
Given how tiny the gains and losses are, it's worth noting that if you displayed the entire spectrum of the engine's rpm on your monitor, it would be impossible to tell if there were any differences whatsoever, not just visually, but also viscerally. It's very unlikely that most of the changes made would ever have any real world effects on horsepower, torque and ETs.
@TheDavidFreiburger11 ай бұрын
I’ve tested it three times. It usually gives you 4-5 more numbers in most parts of the curve. Granted you’re not going to feel that, but it all adds up. And there’s zero downside.