L76 vs FAST 102
06-13-2010, 01:38 AM
#2
I wish i had the dyno sheets. But,Vector motorsports in the detroit area did a back to back test on my car. I have a 402ci w/ported l92 heads. A stock l76 to a 102mm fast and their was no gain at all. it was so minor and wasted money. some says it gains,but not on my car. you can call vector and ask for kirk.
06-13-2010, 02:41 PM
#3
Ive seen many positive results here. Here is an old post with that data I gathered and what helped me decide to buy one based on what Ive seen.
Since then Ive seen a 100% stock G8 GT pick up 13rwhp and 11rwtq, Patrick G also tested one and had moderate gains across the board with a peak of 20rwhp gained at higher RPM. He also tested a few "ported" LS3 intakes that LOST power after being professionally ported. IIRC everything above was with a 90mm throttle body too.
FAST claims it will make 14hp & 11TQ. So its doing exactly what they say it will do, I know I could feel the difference when I installed mine. Ill do a back to back dyno test myself after I finish upgrading my fuel pump!
Spectacle Solutions: +15rwhp +15rwtq on a 100% stock 2010 camaro
Texas Speed: +15hp +16tq on a 580hp LS3 engine
Texas Speed#2: Had FasterProms, Jeremy F, port the LSXR and it lost all of it gains and even lost to the stock intake after porting.
Vengance : +12rwhp on a Vette
Texas Speed: +15hp +16tq on a 580hp LS3 engine
Texas Speed#2: Had FasterProms, Jeremy F, port the LSXR and it lost all of it gains and even lost to the stock intake after porting.
Vengance : +12rwhp on a Vette
FAST claims it will make 14hp & 11TQ. So its doing exactly what they say it will do, I know I could feel the difference when I installed mine. Ill do a back to back dyno test myself after I finish upgrading my fuel pump!
06-14-2010, 07:05 PM
#6
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It's hard to say if it is worth the extra green. I think it really come down to application. I personally would not spend the money on one unless I could see the L76 somehow as a restriction. IMHO
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06-15-2010, 03:13 PM
#9
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The only comparison gains I trust are my own- The 102 is a nice piece but its just to pricey for even a large gain. I would consider looking at what Patrick did, but you gotta get it on your own setup and tuning & running conditions of a motor can throw a setup off like no other. Peak power, power under the curve - throttle response, track times. People are always looking to narrow for " some sort of result " if you have to ask cause its an expensive move then you probably wont do it anyway. Buy a turbo , or put some no2 on the car.
06-15-2010, 04:48 PM
#11
That's funny. I was the FIRST to have these intakes and had dyno testing before they even started shipping out. Done on a bone stock 2010 Camaro with great gains......
06-15-2010, 06:08 PM
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best intake only swap is from a L76 to a maggie, whipple, or KB. They all show gains
On a serious note i lurk and have seen the intake go both ways. Seems really hit or miss. Especially when they start porting them. a 102mm tb is a must have with the intake by the results posted here
On a serious note i lurk and have seen the intake go both ways. Seems really hit or miss. Especially when they start porting them. a 102mm tb is a must have with the intake by the results posted here
06-17-2010, 06:00 PM
#17
Guys.... get this 102mm TB out of your head. It takes some serious motor for you to need the 102mm TB on the 102mm intake. A 92mm TB will be fine for 95% of the people on Tech. If you use a 102mm TB when not needed, all it does is slow down the velocity of the air and make tuning more difficult......
06-17-2010, 07:05 PM
#19
06-17-2010, 07:06 PM
#20
On the right engine it works, just not impressive on 6.0 and 6.2l engines.
FAST rates it at 14 crank horsepower so that's about 12 rwhp. Not worth $800+ to most people. If you can't get the full use out of the 102mm, why bother if a stock or ported LS3/L76 will get the job done for a fraction of the price.
The people that defend it the hardest are just justifying their investment or in the business of selling them. Show us the dyno numbers and then back it up at the track.
FAST rates it at 14 crank horsepower so that's about 12 rwhp. Not worth $800+ to most people. If you can't get the full use out of the 102mm, why bother if a stock or ported LS3/L76 will get the job done for a fraction of the price.
The people that defend it the hardest are just justifying their investment or in the business of selling them. Show us the dyno numbers and then back it up at the track.