any data on cold air intakes helping power in lt1
#1
any data on cold air intakes helping power in lt1
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.
with a big cam and higher compression, does an lt1 really need an aftermarket filter and the replacement of the intake hose?
thanks.
#7
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.
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.
#9
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.
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.
#10
Originally Posted by LenT1
Why dont you have someone with 600rwhp put the stock intake back on and see what happens.
Originally Posted by rage366
well, i dont thnk that someone with a 600rwhp will be using a stock tb...
#11
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...
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...
#12
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