Aluminum Intake Worth It?
Thread Starter
Racer
Joined: Nov 2019
Posts: 336
Likes: 173
From: Canadian living in southern France
Why are you doing this to a simple-minded question? NO - an intake will not give you a lot of horsepower - but if you have an 'adder' that forces air into it - well then, there you have it, you have something! The skinny answer to all this dialogue - Increase air "in" (a good intake manifold) - a camshaft to hold the valve open as well as close it at an optimum time and ramp, use a valve sized to flow the additional volume, and an exhaust manifold (headers) to expel the spent exhaust in such a way that the pulses scavenge one another and force the spent air out...Optimizing those pulses in a tuned way - that will net seat-of the pants power! GOLDEN BUZZER - Fuel, Intake air, valve lift and duration (as well as cylinder size and combustion chamber) combined with many other elements net real-feel gains! Its a combination and they should be addressed in a package sort of way - there are plenty of members that can offer packages that will net REAL Gains ........... no rabbit holes please - don't confuse this member - let's keep it simple - please...
Sure, we have big expressways, but who wants to sit on them?
It's fairly likely I'll rebuild the engine next year, and if I do, it will be set up, from top to bottom, for bottom end torque and decent mileage. Maybe even a 383, because I can use the same block.
When my parts show up and I get them installed and set up properly, I'll post the results.
Thanks everybody.
Le Mans Master
Joined: Oct 2010
Posts: 6,938
Likes: 848
From: melbourne florida
2023 C3 of the Year Finalist - Modified
Clearly we disagree which is fine but others certainly don't agree either that a aftermarket manifold ALONE will noticeably increase TQ/HP on built SBC, much less a stock base motor and the documentation does not support that claim either. I would like to see a Performer 2101 alone adding 20 HP to any engine? You stated combined with everything else a manifold change adds 20 HP. I dynoed 233 RWHP (Factory L-82 220 NET HP) with my stock L-82 with no emissions, shorty headers, 2.5 duals, Stock L-82 aluminum intake, stock 882 emissions cylinder heads, stock L-82 cam with a weak compression #6 cylinder.......in my case, the increase had nothing to do with the stock L-82 intake......100% all in the exhaust alone......
I have personally converted in prior years on other cars, 2 Performer manifolds, on two different GM 350 motors, as the only change and would not do it, ever again, since the benefit was barely noticeable as a manifold only change......sorry but i just don't feel the effort is worth the work for performance. Now for a weight savings? YES!
I have personally converted in prior years on other cars, 2 Performer manifolds, on two different GM 350 motors, as the only change and would not do it, ever again, since the benefit was barely noticeable as a manifold only change......sorry but i just don't feel the effort is worth the work for performance. Now for a weight savings? YES!
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
I bet an rpm or weiand air strike would make anoticeable difference against the alum copy of a stock iron Q jet intake.
You can port match or mess with the plenum doesnt really do much on stock stuff.
You can port match or mess with the plenum doesnt really do much on stock stuff.
