5.0L FORD INTAKE TEST 

Yea fr ✊🏾

My pleasure

And the ford modified video was cool! It's an underbuilt machine and your proved it!!

Yeah, seriously I've been applying what you have found and shown on Ford stuff in conjunction with the stuff I've learned on Engine Masters and it is helping a ton when looking at engine math books and such to come up with my combination....this will be a mostly home build and I want everything to be as good as it is going to be and WORK. And I believe it will with what you teach and some of your colleagues teachm

Absolutely

Not to mention the best sounding 👍🏻

I used to eat those all the time back when i had my Taurus SHO, both the drag strip and highway pulls. They didn't stand a chance lol

Was that with e7 heads?

@@TommyboyGTP that 7k redline helps. And as does the part about Yamaha making some badass heads.. 220~hp and 215tq (according to a forum or 2) and that power comes on fast. Imagine if they'd have offered that little v6 in a rwd.. (it's doable buuutt..)

@@PureCountryof91 I'm pretty sure that was a very conservative power rating, and yea it pulled like a beast, and would go to 7,500 or a bit more before the cutoff. Used to rev the piss out of mine, it loved it lol

I appreciate that!

@@richardholdener1727 if you could swap in a mild 302 in anything, what would you pick and why? Not for racing but just to have for fun on the street. Like a pinto, ranger, maverick, ect?

Glad you enjoy it!

You bet

I have a 331 10:1 with a gt40 tubular, china heads, XE270 cam, aluminum china heads, shorty headers made 315whp/360 tq

Stock 5.0 cam in a 306?

I second that! Us EFI 5.8 guys don't really have a junkyard option for the lower intake, unless you're lucky enough to find a first gen Lightning in the Junkyard, which would be like hitting the jackpot. Most have to spend over $900 for the Edelbrock stuff.

Thats a killer set of heads. Best overall on the market imho at least for a street car

Very welcome

I sold one I had on eBay for $875 two years ago. People definitely love them still. Not sure if it’s more for nostalgia or just the cool tubular looks.

@@CentralVAracer I’m new to the fox body. Just got one with shorty bbk, e303 cam and bbk cold air with flow masters. She runs out of breath at 5k rpm but feels great down low. What’s the best bang for the buck manifold?

Run plenty of ported (and modded) Cobras and GT40s over the last 30 years or so-we know what they do

@@richardholdener1727 so you know a what a cut, runners shortened to peak at 6,500rpm, 2.4 mcsa, 320cfm bolted together average runner flow with a 80mm 1,100cfm throttle body tunnel flow gt40 would have made 30plus hp more than any of the tested aftermarket manifolds. To many that would be a better test because it's doing something different than buying what everyone else has bought and getting the same limitations everyone has. We have plenty of back to back testing and we have found it hard to beat a properly ported/modified gt40 manifold. This is a good test though. Keep up the great work!👍

@@richardholdener1727I’d really like to see you do one of his intakes . Everybody in the forums would like to see it .

it is industrial grade silly putty impregnated with silicone carbide (or even industrial diamonds on some applications)

Look at the Big bang Honda video that is up-along with many others (including V6s)

Not a bad idea. I’ll guesstimate that the carb will make more power up top, above 4600 RPM, and the efi will make more down low.

I did that test

I realise that you have most likely ran this test in the past as well as tons more I’m just waiting anxiously for you to share the results keep up the good work

@@richardholdener1727 have you posted it here ?

@@brettkelly1436 he did share the results

The tube GT-40 can't be ported-but the Cobra version can

TMI

Lol

Haha i can relate 😂

Me too! 😜

11:1 AF and very low timing

@@richardholdener1727 thank you

Intakes do the same thing under boost-tested that many times

@@richardholdener1727 Thanks for the info

That would be cool!

there are a few 351W videos up

Lies. Not tuned ?

The car is ' 92 LX with a T-5. The long block combo at the time was 306 similar to the video. The cam was an E303 with 1.7s and AFR 165 58cc heads with shorty headers, off road H pipe, & electric fan. With the unported GT-40 it made 274. With the Systemax it made 334rwhp. I did port the GT 40 lower and ran that for awhile but it was a mess. It was THIN in the runners and sucked alot of oil. It made 316rwhp with that setup.

no maf-it was speed density-36 or 42 pound injectors

they make good power

the lsa video is up (on an ls application)-tighter can improve power low and mid but does lose idle quality

@@richardholdener1727 how do i find that lsa vjo?

@@jlfastride1 Search for "lsa" on his channel. Here it is: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-JUHwVCDjonU.html

i have one

there should be smog legal parts for that application

Hi would be better than box

I tested their top end kit

@@richardholdener1727 results/verdict?

yes with piston-you need springs, rockers are a good idea

With flat-tops and assuming 64cc heads right about 10 to 1

I've run lots and lots of ported and modded Cobra and Explorer intakes over the last few decades

Stop thinking in terms of flow-the intake is not flow-its reflected waves that enhance cylinder filling (like boost) at specific engine speeds

depends on the intake. The long runners of the EFI would get whipped by a single plane, above 4,500 RPM. But a carb cools the intake charge with the venturi effect of its "barrels", while the typical EFI intake has so much surface area, it soaks up a ton of heat. And with the shock towers in the engine compartment blocking airflow from rad to firewall, there's a lot of engine heat to soak up.

dual plane carb is a lot better than stock H.O. EFI

@@richardholdener1727 cheaper too, procomp intake and distributor on a 302 swapped in a 240z back in high school.

@Jeff Kopis they do make carbs for mod motors they have for years and years. You dont see it alot but they do make em.

I bought a full lunatic balanced 408 stoker kit for my 351w. I had to cheap out on the pro comp 215 heads. Sent to machine shop for springs and a good look over. Used a Ford single plane high rise. Z 303 cam tried to stay all Ford I was dumb at the time. Any way my buddy ran a 79 sunbird with a 383. We both ran a glide with 4:56 gears. Stock suspension. Tubular k member on my 89 fox lx. 2007. They were all Chevy hardcore never even built a Ford. When they saw I had to do no block grinding for my rods to clear they were amazed. Stud girdle on mains and rockers. Very similar parts on both. They thought for sure my Windsor stood no chance. That Ford made no power crap was all I heard. Double the money later on my Ford even I was questioning my route I chose. We were on small tires. Foot braking no trans brake till later. Straight cut planetary for the glide killed my trans break budget and his. Any way we went to twiggs in Macon and Savannah before it closed and ran 6.10 all day no tuning no test. Once the mustang started to come around the economy fell out. I had to sell my engine for 5,000 to a cop in Atlanta. He said straight bolt up in his 91 he ran 9.80 in the quarter. These were N/A cars. Needless to say I noticed how much power and torque that 408 made which I'm not good on the cubes it was .40 over. It was a very impressive engine. Then I drove a built 347 and man the power band would kill that 383. Anyways just reminiscing the good ole day off 2005-07.

Bobby4v - most likely the answer is yes, it would theoretically shift the usable power band down a little bit in the Rpm scale and bump your TQ if I’m not mistaken.

1/2 inch changes it very little

I tested the RPM II vs RPM Air Gap

no not that test

Richard Holdener I was just wondering since it’s hard to find a comparison between the three common intakes people swap into their 4.6 pi motors.

I second this! 👍

I've run those-they work very well

Hartman powerbox, then Comp bought them I think.

A lot of intake stuff is based upon finding the right length to the runners, longer runners make peak torque lower and affect the rpm the engine makes power, shorter is vers visa, extrude honing doesn't change the tuning range or very little as the runners get bigger, the nice thing about extrude honing is getting to places that a traditional porter can't get to and fixing any casting flash and stuff in the runner itself, you can extrude hone a set of heads and intake till they start showing holes, and all it'll do is broaden the power around the peaks. So get the length right then hone them out.

same thing happens NA and boosted

@@richardholdener1727 Did the box r make more power?

Downs, Cartech, Comp and TFS all made those Box uppers

@@richardholdener1727 was it any good ? Did you test any of it ? 🤔

The box intakes are mainly used for boosted applications.

@@Bird76Mojo76 I thought as much.👌🏻😊👍🏻 Way shorter travel for that additional air and acts as a surge box too.

gt-40 will make less

@@richardholdener1727 by a substantial ammount?

yes

yes-about 25 hp

porting them does-polishing them just makes them shiny inside-Extrude Hone porting does both

@@richardholdener1727 Is this because of the "boundary layer" to steal an aeronautical term? Basically the layer of air between the surface and the main column of air that is moving. Porting increases the main column of air and thus the volume of air for the same velocity. Maybe. Or maybe I should shut up and drink some more beer. Yes more beer.

@@richardholdener1727 I've had extrude honed intakes but they seem controversial, I'd love to see a test with and without to see if they actually help much.

400 with a cam

Don't know much about the heads you bought. 20 years ago I ported a set of E7TE heads and ran a set of beehive springs. 75mm tb and 70 mm mass air. E303 and ported Cobra intake. The 19lb/hr injectors were causing a problem above 5000 rpm. Used a Crane interceptor to find it. Also, I hope you ditched the factory epoxy core coil. On a mostly stock car with 3.73 rears, the engine used to nose over in first gear earlier than all other gears. An MSD coil fixed that. Factory coil hated revving high real fast.

not yet

Id be interested to see if there is a torque loss with the high ram on a stock bottom end 302.

Bobby4v yeah curious to see how much torque is sacrificed, pretty short runner length but +10 for aesthetics haha!

Jeff Kopis if you would have read what I posted I was wanting to the see 2 bbl 289 vs the Hi Po vs the Shelby. Not just him putting these same parts on a 289. It would kinda be like another other guys cause to many people forget about the 289

There is a HiPo 289 video up

Richard Holdener I went back through the videos and didn’t seem to find it

STOCK INTAKE IS RESTRICTIVE AND LONGER RUNNER

@@richardholdener1727 is it really more restrictive than the heads though? I thought the stock heads only flowed like 145cfm, surely the intake flows better than that

@@richardholdener1727 sorry, I totally had it backwards, the intake is 145cfm, heads at around 160cfm

My wife makes most of them

Richard Holdener does she sell them?

the Box R loses power through most of the curve-its for top end

So the Box R is more of a specialty, high rpm all the time type of deal then? I'm assuming this trend is the same under boost as well.

I have run those

junkyard