Ultimate LS7 intake
Originally Posted by LSmonster
E/T 4.0 LS7 heads. F-R-E hydraulic cam and T/B. Wilson billet LS7 intake manifold... @7200 RPM. 100 octane gas. I could probably run it on 91 octane gas but I didn't for this test.
Originally Posted by Stang's Bane
What did the curve look like below ~4K? I know that wasn't the intent of this engine, but I am just wondering...
Both intakes performed the same below 3500... But after that, the billet intake picked up torque and HP. I have both graphs and I'm working on a way to post it.
Originally Posted by Bowtiejoni
Could we get stock LS7 with stock manifold vs stock LS7 with wilson manifold. that would tell the story.
Sorry... I don't work with production LS7 engines. But I'm sure someone will do that test very soon.
Launching!
Joined: Dec 2003
Posts: 251
Likes: 2
From: Portland OR
Originally Posted by Bowtiejoni
Could we get stock LS7 with stock manifold vs stock LS7 with wilson manifold. that would tell the story.
Originally Posted by 2000_SS
i'm getting ready to build a 402 for my SS. i'm just going to buy a pre-assembled shortblock like the LS2 based ones from Texas Speed. i'll bolt on some AFR225s with a healthy cam. i'm still going to drive the car a lot, but i want it to also perform as best it can for what it is.
would that motor benefit greatly from one of these intakes, or would i be better off with a fast, based on your experience? Also, do they handle boost well? i know billet is strong, but the intake is only as strong as its weakest weld. Are they welded by hand or by machine? i don't know that i'll even run a boosted setup, but it it possible, so i'm just curious at this point. thanks
would that motor benefit greatly from one of these intakes, or would i be better off with a fast, based on your experience? Also, do they handle boost well? i know billet is strong, but the intake is only as strong as its weakest weld. Are they welded by hand or by machine? i don't know that i'll even run a boosted setup, but it it possible, so i'm just curious at this point. thanks
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Thread Starter
FormerVendor
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From: Lake in the Hills, IL
Originally Posted by LSmonster
I just tested a billet LS7 intake on a 402" engine and it gained 17 HP over a stock LS7 intake manifold... It gained 10 lbs of torque too. My T/B added another 3 HP and 3 ft/lbs of torque for a total of 620 HP on a Super Flow 901 engine dyno. Both intakes performed the same below 3500... But after that, the billet intake picked up torque and HP.
Nate
We have run this intake finally, and the results are +15hp at the tire at peak. The factory intake made 505.9@7100rpm and the Wilson made 520.6@7000rpm. The engine carry's rpm well to 7500 and should be a blast to drive on a road course. The intakes stay equal below 3800, then the wilson starts to gain slowly to the 15hp peak gain. This engine is a 427 with ETP heads set up for street/track day type use with a solid roller cam.
Kurt
Kurt
Nice gains, but it was like I thought. A huge improvement on cathedral port stuff and not quite so much on ls7 stuff. I am sure the hotter the combo beneath it though, the better the gains.
TECH Veteran
Joined: Dec 2001
Posts: 4,117
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From: Ft. Lauderdale, FL, USA
Originally Posted by Nasty N8
Deffinatly not for a stock motor. The more power the more gains you will see.
Nate
Nate
I'm talking with Allan Futral right now about a cam for my set-up. He asked me if I knew the runner length of this Wilson intake. I'm pretty certain I'll be going with it and ordering it tomorrow or next week through my builder.
Can you PM me with details of the intake.
Thanks.
.
Originally Posted by 427
We have run this intake finally, and the results are +15hp at the tire at peak. The factory intake made 505.9@7100rpm and the Wilson made 520.6@7000rpm. The engine carry's rpm well to 7500 and should be a blast to drive on a road course. The intakes stay equal below 3800, then the wilson starts to gain slowly to the 15hp peak gain. This engine is a 427 with ETP heads set up for street/track day type use with a solid roller cam.
Kurt
Kurt
Interesting... Looks like the gains were these same as my 402" engine...
I'll be testing one on a 443" engine in two or three weeks, and I'll post the results. And I'm testing the LS1 style tomorrow night. I'll let you guys know how that turns out.
Originally Posted by Black Sunshine/ 00SS
Subscribing.. I'm interested in what it will do on a 402, AFR225, big cam car..