Steve Bryant

iTrader: (1)

Saturday afternoon, I was shopping this afternoon and noticed a new Chevy High Performance issue (July 2004) was on the newsstand. The cover headlines a story on an LS1 Intake Manifold Test they conducted at Westech. The article contrasts the LS1/LS6/LSX/Truck/Weiand Intake manifolds. Interesting reading! From the best to the worst, the difference is about 15 to 18 pounds-feet of torque. This was all done on a stock LS1 crate engine with a mild cam and standard LS1 heads. They are going to continue testing on more exotic heads and bigger cams in future issues.

Steve

LS1LT1

iTrader: (16)

Thanks for sharing but just to let ya know it was already posted here a few times in the last two weeks.

jrp

iTrader: (16)

to the

SSDude

This test meant very little since the engine was not tuned after the installation of each intake.

fstst n mnre

i buy mods when i see them work. i have a heads and cam auto (10.90 @ 125) and a cam only 6 spd (11.80 @ 123) ive yet to see one of these intakes to be worth alot over the ls6. wish it were true cause id love to go faster in both cars.
automatic has 385 rwhp and 6 spd has 408 rwhp (1.50 60 ft vs 1.88)

PREDATOR-Z

Well as we all know by now CHP made a Booboo with those #'s. and they actually should be reversed to make sense (HP readings is actually TQ and vice versa)

So far FAST has failed to convince me that either manifold will warrant the expense to go from a LS6 or 01/02 LS1 one.

What surprised me was the results of the "Big Ugly". I liked the way it develloped that TQ.(Expected) but actually held his own in the HP range as well.

ratio411

Well guys, I am glad he posted...
I missed the other post/posts.

I'd love for you to explain to me how to use the search for something that I didn't know about!

Lay off folks for multiple posts and not using search.
Some guys have a life and miss some of what goes on here.

If your post is not constructive to the topic at hand, it is far worse manners than someone posting before using the search.

Then posting to insult or look down on someone adds to the lowness of the bad manners.

Sorry, off my soapbox now.
I am just tired of the same folks pissing and moaning in every thread rather than being helpful. Get a life.
3900+ posts in less than a year!
From what I have seen, most are posts telling folks to "use the search button"...
Dave

Pro Stock John

iTrader: (34)

Need to retune for each intake the better ones will lean out the combo... so it sounds like the results are flawed, what do you guys think?

ratio411

If nothing is changed, other than the intake, how could it be leaned out?
If the MAF is unchanged, and the MAF controls mixture, would it not sense better/worse flow and compensate accordingly? The air that flows over the MAF sensors would be more or less and read by the sensor. Is my reasoning flawed?
Dave

Pro Stock John

iTrader: (34)

If your reasoning worked, we would never need to tune for mods.

ratio411

I understand the need for some tuning, especially as the mods get wilder and folks seek to get beyond stingy factor tuning.
I am just wondering about the need for drastic measures when changing one component that in itself does not make a huge difference.
I am by no means an expert, I am just playing 'devil's advocate' in the process of learning.
Dave