The Results Of The Manifold Tests

I give just the peak numbers on each manifold tested.
Here is the link to the AFR intake.
bit.ly/3zj5qOg

[@minigpracing3068]

AFR is smart in this, they know you are going to give it your best. Some of the other manufacturers should have gotten on board to help cover the expenses of the dyno time and loss of work time. Big credit to the companies that were thinking and helped you out.

[@WeingartnerRacing]

They definitely helped.

[@steves759]

@Mini GP Racing Don't forget Erson donated also. 👍🏼

[@brentsmith9121]

Pretty interesting that the performer rpm held its own pretty well against the single planes , I would not have thought that

[@lamarw9901]

Good stuff, glad to see this project taking off. Hats off to AFR and Erson on helping make this happen. I'd love to see someone donate a Performer RPM air gap. I assume this was a non Air Gap.

[@markfreeborn8493]

Everywhere I turn: LS thio, LS that LS Blah Blah ..I get it. But I will always will have respect for the SBC. For the record I only bleed blue blood. Long time sub and I think you have THE "best technical channel on YT" SO Gratefull you put in the rich time Eric

[@robertwest3093]

This is a Richard Holdener-esque amount of dyno work. Thank you for all the hard work! I'm amazed that you did all those intakes in one day!

[@mikkokuorttinen3113]

Thank you Eric for the great and waited review!

[@timothyarnott3584]

Hey Eric, Tim here, most AWESOME vid, yes, we all want more charts, curves, info, but WOW, what an onslaught of testing!!!!.....I LOVED IT!! will wait for the other vids.....just AWESOME sir!!!!.....SO glad ur doin this, i'm glued to my phn to learn more......just AWESOME (to reiterate again)!!!!!!!

[@DSRE535]

Rpm airgap with a 1 inch open spacer is still extremely hard to beat for the street intake manifolds, and then next to that the procomp single plane a.k.a. copy of the old gm bowtie intake is and has always been really really good and wayyy cheaper than most

[@dragginfool]

Dude! Like WOW! You have amazing energy and your ability to video log all of it is so appreciated. Love watching your videos and as always, can't wait for the next one. Thank you EW!

[@peskypeet]

Just wow, great job man. You out did youself with these tests and the information.

[@icetech6]

Thanks for doing all of this Eric, that's a ton of work

[@WeingartnerRacing]

Thanks

[@leosun8469]

Extraordinary amount of work- thank you for all this effort and documenting it and posting for our benefit.

[@juansandoval9282]

Looks like alot of work, thank you

[@pizzandoughnutspage7817]

Awesome stuff Eric, lots of work, lots of info. Thanks man!

[@WeingartnerRacing]

Thanks for watching.

[@rogermoore7644]

Thank you for giving up your time and money to give us information.

[@DSRE535]

I forgot to say thank you for all your hard work that was a lot to do a couple of days oh my goodness!!!!

[@sc358.]

Thanks Eric, love this stuff!

[@DrGo-bw2jy]

If your intakes flow at the rate you flow out videos, we will get all the horsepower we need... can't say enough about your dedication to this charity build and how much charity you have donated is pretty amazing! Thanks for your continued dedication.

[@WeingartnerRacing]

I wouldn't consider it charity. I wanted the results more than most people, so I would say I selfishly did it.

[@flipfloptanlines926]

@@WeingartnerRacing "Charity begins in La Casa Ese!"

[@rogerowens5669]

That's what I was thinking all the gasket changes

[@grahamball2913]

@@WeingartnerRacing that’s not selfish… that’s professional 😊

[@servediocylinderheads]

Excellent work Eric!

[@WeingartnerRacing]

thank you

[@richardboggs260]

Thank you for testing the manifolds!! Thank you to AFR to giving you parts to test. I was wrong I thought the edelbrock 2892 would be the best one. Thank you for the video!!

[@WeingartnerRacing]

The Edelbrock might be better on other combinations.

[@brandontittle5762]

Great video Eric

[@NobilityandLoyalty]

Eric, y'all remind me of myself decades ago when I had patience. Well done!

[@thereluctantgearhead4544]

Amazing that the cheapest, Chinese intake made more power than intakes costing 3 times as much. It's been known for years that them Hurricane intakes are good. Better than I thought actually. I would have put my money on the Super Victor 2. Those Keith Dorton intakes make less power than the original Strip Dominator 300-25 I've seen in a previous test. But on a 700-800 hp 434, the results would be different for all of them. I would have liked to seen where the Dart singleplane fell in that comparison. Good job man. 20 minute intake swaps is kickin ass.

[@WeingartnerRacing]

The two other intakes I should have tested would be the Holley 300-25 and the BMP/Motown 4150

[@peskypeet]

​@@WeingartnerRacing My thoughts exactly. Like others I would have tried to use the RPM Airgap but I'd have thrown in a Holley 300-36 in the mix. I've seen a few tests with the Tork Link, never good.

[@shoominati23]

I was amazed at that Hurricane manifold run, so much so I've ordered one for my own oval track upcoming build. Should make good power with budget parts!

[@cfmechanic]

Wow what a line up. Thanks for all the testing. Incredible that that ugly intake did the best. Very interesting results.

[@johndevries8759]

Thanks for your efforts of trying to treat the manifold honestly and compare them by height and type.

[@craigcontofalsky4387]

Great work!!! It's amazing how many manifolds are available for the SBC.

[@xlr8r3VA]

Wow, that's a power test! 12 intakes in one day? You guys were moving! By the way, you got a plug today from Charles Servedio on today's mission impossible video where he is comparing the single plane and dual plane intakes. He was impressed with your results. Keep up the great videos!

[@WeingartnerRacing]

When you have two people that know what they are doing you can go fast.

[@philipmazzuca2269]

I picked up .3 tenths on the same day going from an RPM Air Gap to a super hurricane on my 355

[@philipmazzuca2269]

It also picked up 2.8 mph

[@kinotransam]

Nice work!!!

[@chevyrc3623]

That is a very cool video and I did email you so hopefully it went threw ok I am interested in the book. Especially how the 2 barrol did on the manifolds

[@jcnpresser]

Dang you been busy sir! Thanks!

[@WeingartnerRacing]

Thanks for watching

[@richardsmith-qy6vl]

Great video I love it I like how the hurricane intake outshines all the high dollar intakes....lol

[@DevastationMtrsports]

I think the Hurricaine intake is a copy of a Bowtie (Chevy performance) Intake

[@michaelbogovican6500]

Really like your videos. Very informative. I have never seen any in person, but have you see the Profiler / Wilson SBC intake ?

[@obbyjep7597]

This is awesome information. Thanks.

[@WeingartnerRacing]

Thanks for watching.

[@lesterstehn4802]

Great effort Eric, been waiting for this video series, tipping it's going to better than Sick Week🙂 How about that old butchered swap meet Manifold. Dyno shows what don't work and it's not always pretty👍

[@Gnif57]

how many of the customers wanted to change intakes after seeing this video?

[@blackdragster1]

Herculean effort! I will buy the book. Please include engine details. Each of the succeeding tests will provide incredible insight. Please include your thoughts along the way, especially with respect to head-intake relationship. Would a larger runner/CSA head give different results vs the Enforcer heads. Well done!

[@prestonedmonds4128]

Thanks for doing this test. I was hoping to see how the 320-25 Strip Dominator stacked up against all of these.

[@jmack7351]

Great video, I talked to you by email like 7, or 8 yrs ago and you offered me a job, and I have regretted it ever since not taking it. 🤦‍♂️

[@gabrieldimarco9646]

Thank you for testing all those manifolds Eric. It would have been great to see how an rpm air gap would have done if you had one to test. Also, interesting would be what happens to fuel distribution in a given intake manifold when subjected to g-forces - front to back for drag racing or side to side for road coarse applications. I'm not sure if it is even possible to do that but maybe checking air/fuel ratios at each cylinder with O2 sensors??

[@WeingartnerRacing]

I didn't monitor 8 o2 readings.

[@brentsmith9121]

Great info

[@ShannonpdpHammond-yy7yh]

Air flow research, man some day i hope to buy some heads from them ,what a great company. just awesome!!

[@jimmesser5821]

Good stuff sir!!!! What do know about the team G intakes?

[@timothyarnott3584]

Oh, btw, my heads only need 31° of timing, yet i found putting in a splash of 110 leaded, with my 90 non-ethanol, has made my motor, MUCH happier, so you puttin in a splash of 110, with 91 (i assume ethenol base) to keep things safe is EXACTLY why i mix a bit of 110 with my 90 pump....TY SIR!!

[@rcrocker2197]

Good job

[@dondotterer24]

Awesome. I appreciate all the hard work and time. No body else as went to this extent. I can send you other intakes but looks like you have your hands full already. I'm thinking the cam specs were advertised duration?

[@WeingartnerRacing]

No the specs are 0.050

[@dondotterer24]

@@WeingartnerRacing Thank you . I will tell Charlie S . He also told everyone to watch your channel. I can also send other manifolds to you. But I understand you have you hands full as it is but will be glad to do it anytime. Thank's

[@my87z28]

Man, that’s a ton of work. Thank you for putting forth the effort and sharing it with us. Have you gotten around to dyno’ ing your 565?

[@WeingartnerRacing]

Next Thursday

[@my87z28]

@@WeingartnerRacing sweet, can’t wait to see the results.

[@flipfloptanlines926]

It dont matter what your doin, 12 different manifolds laid end to end is just cool looking. Curious to see how they will rank after the port match.

[@mohanperformance.enginerd.1308]

Wow Eric you are my hero! I cant tell you how much I appreciate your work you share with us. Your awesome! Thank you. Two questions: 1) did you take the first intake you tested and establish a control test by re install it at the end of all the testing to establish baseline confirmation incase of any engine wear or unknown changes? Just to ensure there was no engine performance creep. 2) I am super curious if the huricane intakes were one of the first tested. Or tested at/neer the end of the test session. Cheers! Great job! Thank you so much.

[@WeingartnerRacing]

Nope. The AFR had 12pulls on it before it was called. The hurricanes were last.

[@mohanperformance.enginerd.1308]

@@WeingartnerRacing thank you

[@michaelbinkley9251]

Would love to have the book when you're done

[@bdugle1]

Wow! I thought you said you’re no Superman… Thanks Eric, awesome!

[@Matt44magnum44]

When you do the porting on the afr 4812 could you do a video? I have one myself and I’m super interested in this test and what magic you can work on it! I learn a lot from your videos I managed to port a set of dart pro 1 180 cc sbc heads and got 269 cfm @.600 intake and 215 cfm @.600 exhaust it’s all going on a 355. Thanks again for doing these tests and showing us this awesome info

[@WeingartnerRacing]

I will but not much can be done.

[@xxdabroxx]

What are the "tubes" you ran in the hurricane? Also, do you have any thoughts on the elliptical shape of the carb flange on that intake?

[@thetraveler3318]

Bms machine shop is awesome ... billy is down there doing great work ......been using shanooks tho

[@DSRE535]

Oh and a little a little trick to that rpm intake manifold The air gap and the RPM have the same carb pad height except the air gap has the separation between the valley and the runners and the RPM doesn’t so when you cut down the divider on the regular RPM you’re basically copying the air gap intake manifold and gains about 10 hp give or take a couple up top fwiw

[@jerrywhaley6397]

Also it would be interesting for you to tell us the difference in the tube. Was there any difference at all between the tubes and them being blocked off???

[@jefferybuchan4235]

very beautiful car in the back ground.

[@garydent6056]

I guess I missed it or just didn’t hear went back and watch again guess I’m just slow lol what intake was the best?? Sorry! And thanks for the great info!!

[@spooler7828]

You were a Superman on that test. LOL, holey crap.

[@WeingartnerRacing]

Thanks

[@scottsigmon926]

2 things. Are you sending back the manifolds that were gave to you and 2nd, I don’t care how long your videos are sir, I’m always learning from them and have something good to take away, always. Thanks for all your hard work.

[@WeingartnerRacing]

Most are being ported and will be sent out when done. That means many will not make it back on the dyno unless I schedule another session before then.

[@scottsigmon926]

@@WeingartnerRacing I understand. What about the AFR manifolds? Are they yours to keep or are you sending them back to AFR once you are done with the testing?

[@patrickwendling6759]

Thank you for your knowledge 💪🏽 USA 🇺🇸 USA 🇺🇸 USA 🇺🇸

[@DevastationMtrsports]

This intro image is very interesting looking at the plenum top shapes of the top performing manifolds... missing the #1 though...

[@39impala]

I definitely want to see how the 2bbl stacked for oval trackers.

[@Anarchy-Is-Liberty]

The only thing I can seem to find for a "hurricane" intake manifold, is by a company named "Professional Products", and everywhere I look, people are giving these things a one star rating, and say they can't even get the gaskets to seal on them they're so bad. So I'm assuming, these manifolds you have here are NOT the same ones I'm finding for sale online. Where do we find the ones you have in this video or are they no longer manufactured? Thanks Eric. P.S. I am definitely buying this book when released, it will be amazing!!

[@jerrywhaley6397]

HEY ERIC, I'M COUNTING ON YOU to do your magic on the winning manifold.. to bring the horsepower to the 580 I predict it LOL. You got to come up with 15 horsepower. Lol 😆

[@dondotterer24]

I'm guessing about the port match on the hacked up intake wondering if the intake was slightly smaller than the head?

[@gregdeternova1537]

How do you think a BMP 61040 would have landed in this test? Just curious bc we used it on a buddy’s 400 stroker engine. It made decent power. I’m sure you’ve had one in your hands at some point, so I’m just curious on your thoughts on that one. Thx and keep up the great vids. I really enjoy following all yiur vids.

[@WeingartnerRacing]

I wish I had tested it and the Holley 300-25. Maybe next time.

[@paulthompson1654]

Hi Please consider for those people who donot want a hole thru the hood . What about a Weiand Team G 7530. There are 3 different carb height versions . The 7530 sits the lowest and is lower than an EDE Rpm air gap .

[@brentonk461]

Can you tell us what part number heads you used, and the flow figures if you've got it please.

[@timothyesmond7358]

Waiting on 2bbl info

[@jamesgeorge4874]

AFR putting their products in the hands of people *who know what they are doing* is good advertising.

[@garyhosier4765]

I’m actually surprised a professional products was that good.

[@TxHammer757]

Do you only flow Chevy manifolds??? Have you ever flowed the Edelbrock Gen 3 Hemi intake ?

[@bartpang]

Since the Performer RPM did so well, I'd be interested in how a Victor Jr compares for us without much hood clearance.

[@DevastationMtrsports]

Air Gap > Vic Jr in that choice, use the torque

[@mikewillett5076]

Excellent, exhaustive test. I have an odd question. Let's say an engine is on the small side, I've heard of heavily ported intakes killing a lot of midrange torque with very little top end gain.. A lot of intakes have openings that are way small. Does leaving them small maximize torque? Or is there a certain amount of porting that increases power everywhere? Like opening up only the top and side that matches the straight wall of the heads port and leaving the bottom and pinch point side alone?

[@WeingartnerRacing]

You can watch other videos where I dyno test ported intakes. Unless they are too large to start there is no loss.

[@mikewillett5076]

@@WeingartnerRacing . Cool thanks! I've seen dyno tests on a 400+ engine but was wondering how those various intakes would act on a smaller mill. Just a shift in effective RPM? I've seen one build where a ported intake killed torque but it was a smaller engine and they didn't just port the runners, the plenum was extensively ground.

[@eric5250]

What would happen if you didn’t use open spacer on the performer intake? Is an equalizer really that important? Would torque be lost or gained?

[@stevewalters6853]

Eric those sellers on flea bay ought to give you a kickback you single handed helped sell out and raise the price of the Hurricanes from $145 to $180/$200 in 3 weeks.

[@jlangenfeld5479]

I'd like to see you port match and dyno them again, just port matched. Especially before you dig into the plenums and runners...

[@WeingartnerRacing]

I may do that.

[@jacksonbermingham2168]

sleeve are supposed to be stronger then iron bore. i dont get the stigma on sleeve. if i can pick up a cheapy thats needs a sleeve cant go wrong... also guessed the stock 568hp a friend has 572hp motor about the same but ported .. i was like well 568 is a good hp number

[@nova467spanker]

Guess I was pretty close. I guessed 567hp/543tq on your "Update On The Mule And Take Guess" video

[@gdfitzgibbon]

I’m up for a book!

[@michaelstoker6710]

I'd like to see one of the rhs intakes compares

[@WeingartnerRacing]

I don't think they make that manifold anymore.

[@SSScottSS]

I'm disappointed the AFR dual plane was so far behind the Edelbrock RPM. I just purchased the AFR and I'm now regretting my choice. I'm thinking the RPM airgap would have been the better choice.

[@FORCFED]

Oh wow , I have a New Hurricane 52030/52031 -23 ( the one that won first round ding ding lol ) just had it mocked up on block never ran lol 🤣👍💪

[@NTRGFX]

torquer ii for the win

[@joeldubose5762]

Great information. Thank you for the content. I have a test that it would be cool to try if you're interested.

[@WeingartnerRacing]

I’m always interested

[@patrickmoore1017]

I think those Hurricanes are Bowtie knock offs aren't they? Great video!

[@WeingartnerRacing]

Not really. They are similar but not near the same especially version 3

[@terrypikaart4394]

Funny you said that one with horrible port match did best.. I find port match to be a waste of time. Most hp on my oval port 454, was with a rectangle port intake..

[@donmacon3320]

I know you didn’t test it this go round, but i’ve read where you speak highly of the motown intake. How do you think it would compared to the afr and edelbrock 2925?

[@WeingartnerRacing]

The two other intake I should have used was a Holley 300-25 and a Bmp/Motown 4150.

[@donmacon3320]

@@WeingartnerRacing It was still good to see a test done like this! That eddy rpm really held its on considering...

[@minigpracing3068]

What would it take to get your own engine dyno? Just wondering if one of the companies would swing you a killer deal on a used or demo dyno for your shop. Seems like a magnetic brake would be small enough and "cheap" enough coupled with some Your Dyno controls and load cells. Just a thought.

[@WeingartnerRacing]

Dyno is 65k. I could finance it but I need a place to put it. It makes too much noise for where I am.

[@watsisbuttndo829]

We had a dynojet inertia roller at one of the motorcycle shops we worked at. And while i loved that thing, It didn't really earn its keep as it was not our primary source of income, we sold bikes and accessories, serviced and repaired, fitted tyres ect. Unless you are going to run your shop as a dyno shop, they are not worth it just to have sitting idle in the corner. Eric would have to give up porting/building or take on a full time second person to run it if he was to justify a dyno.

[@mohanperformance.enginerd.1308]

My head hurts.😎 If I understand corect. The hacked up port match hurricain was the best? That makes the hack interesting. Was it over port mached leaving a step? Was the step if any at the floor?

[@WeingartnerRacing]

It was bigger everywhere but not uniform.

[@mohanperformance.enginerd.1308]

@@WeingartnerRacing that is beyond interesting. Thank you. I cant wait until you fix the port match with epoxy and retry. I sure hope you get a chance to re visit this area. If its worse. It would almost be nessasary to bugger up and oversize the port match on a different intake and try duplicate the result to isolate what went on there? All I can say is I sure hope the hack match is not helping that hurricane. Or I have been doing it wrong my whole career and I dont want to mismatch ports. It bothers me🤔 If you read this far. I will say We had a David nickens comp engine years ago. Sbc. That he had left on purpose a 3/16" mismatch on the floor of the intake to head entrance to kick up tue wet fuel on a tunnel ram. We fixed it and lost power. I was a teen back then. That always stuck in my head.

[@lte008]

Do you think there is big gains by porting the torque link? Especially with its long runners I would have thought torque would have been great.

[@sc358.]

Maybe all my fellow circle track guys that like the thing (I've never used it) love how it gets them off the corner 🤣 because they're not good at throttle control 🤷‍♂️ Fun fact. Guy I worked with back in the day was tuning on an off road race truck on a really slick track. He ended up disconnecting the secondaries, re-jetted the thing and won the race. Pretty hilarious

[@WeingartnerRacing]

Im not going to even try. It was really bad.

[@mistersniffer6838]

Thats a hell of a shootout, lol!!!

[@cobyburrow9339]

I have a RPM Airgap not ported on the shelf if you would like to test one.

[@WeingartnerRacing]

I had one but I didn't bring it because I didn't think I could get done with what we had.

[@gregjohnson1177]

what was the name of the one that was the best and part number. thanks

[@WeingartnerRacing]

Hurricane

[@davidreed6070]

Where is the torque link intake made.

[@stevewalters6853]

McFarland was the original manufacturer I believe. Information available on google.

[@foghornleghorn8536]

Why did you complicate things by running the carb spacers?

[@WeingartnerRacing]

Because most people run them. If they don’t they should.

[@rcrocker2197]

Do you know anything about the brodix HV 1000 for sbc ,older style?

[@WeingartnerRacing]

Junk

[@rcrocker2197]

@@WeingartnerRacing thanks that's all I needed to hear. Keep up the good work.

[@snper72]

What was c.i. and compression on motor?

[@WeingartnerRacing]

406 11.2compression.