i tried a search but i wasnt getting what i needed...so, here it goes.

with a big cam and higher compression, does an lt1 really need an aftermarket filter and the replacement of the intake hose?

thanks.

 

wow...22 views and no replies?

 

CAI=More Air, which is needed for more HP, so it won't hurt

 

it's not quite that simple. some of the research that i did previous to this thread indicated (based on dyno #'s) that k&n filters dont really add any hp...



wish it was that black and white.

 

Why dont you have someone with 600rwhp put the stock intake back on and see what happens.

 

well, i dont thnk that someone with a 600rwhp will be using a stock tb...

 

I think the easiest way to find out is to log your MAP during a few WOT runs. Any restrictions from the filter, air passage, MAF, TB, or intake will show up as a vacuum at WOT.

If you change out the filter and see a decrease in the WOT vacuum (ie an increase in MAP at WOT) then it has improved the airflow. How much hp that translates into, i dont know.

 

my car is modded but still has the stock air intake...i still do not know why the previous owner didnt put one on, but I definetly am asap.

 

Okay, I can't give you numbers, but I can give you my experience.

First I installed my Flowmaster cat-back. I was disappointed. It was louder, but I didn't notice any gain. In fact, I later cruised on over to Thunder Racing and the guy I spoke to there said that they had just dynoed a before and after and that they actually lost 7 HP with the Flowmaster.

Then I added my SLP headers and Y and "bypassed" the cat. This made a wonderful improvement. I could feel the SOP (seat of the pants) difference and it made the even sound better. I didn't like the sound of the cat-back by itself, but with the new mod, the sounds "woke up". And I could feel the difference.

Most recently, I got my Ultra Z hood then a Ram Air intake. This seemed to make as much improvement as the headers! I was very impressed with my gains.

But, I don't have any dyno numbers for you. All I can tell you is that I can feel it in the seat of my pants and am finding it difficult to get any traction.

 

You said nothing about keeping the TB stock with a big cam, and what does a TB have to do with the original question anyways? On a stock car a CAI is not going to do much. On a 600 hp car, regardless of TB, it is going to do something. I don't know if anyone has these at their auto stores, but one here had a set up where you could change from a paper filter and a K&N filter. There was a fan behind it, and you could feel the difference in air flow (just put your hand infront of it). Not some small difference either, it was a very big and noticeable change. I think it never hurts to have one.

 

On my totally stock engine, brand new in 1994, the first two mods I did were the Callaway Honker CAI (same as the Moroso) and the Borla catback. Those two changes together, on a totally stock engine, gained me 3/10's in the 1/4-mile, verified with a Vericom accelerometer, and corrected for differing ambient conditions.

Note that the effective CAI's are more than an aftemarket filter and a replacement of the "hose". They typically relocate the filter completely outside the engine compartment, have a large cross-sectional flow area, and minimize the sharp turns of direction that the pinched stock ducting makes.

I think the reason you didn't get much in the way of a response intitially is because the CAI is a slam-dunk on these cars.... probalby designed that way by GM so the F-Body LT1 would not make as much HP as the Corvette version...

 

http://web.camaross.com/forums/showt...old+air+intake



the second page is interesting...

 

dude...that thread is in reference to performance filters, not CAI