fast lsx92mm intake

**bluehawk2000** · 11-22-2009, 01:24 PM

What kind of power out of a stock ls1 with a full exhaust could I see if I had one of these bolted on with a 92mm tb. Is their any downs to this, I will plan on doing a head and cam swap probably in the process but wanna know what kind of power to expect out of this, and is a bigger maf a must or would the stocker still work? Thanks

**Z28boy2000** · 11-22-2009, 02:31 PM

if your gunna be cam'ing your car it is going to want to breathe, the most air in and the most air out as quick as possible. I saw 21rwhp with my 92/92 set up (with torquer 2 cam)....the shop where i had my car dyno'd said on a stock LS expect around 11 hp. I did notice the difference when i drove it after the intake swap. As for the MAF about 97% of people will tell you the stocker is always fine, but i just happened to pick up a Granitelli one for $50 when i bought my car so i cant really tell yea where to go with that. But the stocker will be fine for the intake

**tatertot91** · 11-22-2009, 02:36 PM

IMO, an ls6 intake or maybe a fast 90 would be plenty for a stock ls1

**Hi-Po** · 11-22-2009, 02:47 PM

Originally Posted by tatertot91

IMO, an ls6 intake or maybe a fast 90 would be plenty for a stock ls1

A FAST 92 and FAST 90 are identical with the exception of a 2mm wider mouth opening. It was more of a marketing scheme when they came out with the 92mm IMO.

OP, if you have the extra cash, go for the FAST. If you are patient, look for a used 90 or 92 and save some coin.

**tatertot91** · 11-22-2009, 03:02 PM

Originally Posted by Hi-Po

A FAST 92 and FAST 90 are identical with the exception of a 2mm wider mouth opening. It was more of a marketing scheme when they came out with the 92mm IMO.

OP, if you have the extra cash, go for the FAST. If you are patient, look for a used 90 or 92 and save some coin.

Guess i need to learn my shit about fast intakes a little more

**Z28boy2000** · 11-22-2009, 04:47 PM

yeah i grabbed my FAST for 800ish and that was the whole 92/92 setup

**bluehawk2000** · 11-23-2009, 01:44 PM

oh ok I appreciate the advice, and if the only difference between the 92 and 90 is the opening in the mouth I will just stick with a 90 then. And it wont be stock cause I will be buying a set of heads and cam for it and having it installed at the same time I mean why not already in their working on that part anyway miswell do the rest. Glad I asked the question about the lsx92 never would have known the only difference is the opening of the mouth thats kinda cheap if you ask me.

**Marc 85Z28** · 11-25-2009, 06:25 AM

The FAST 90mm hasn't been made for a long time. The FAST 92 also comes with stainless hardware and molded in inserts for the throttle body screws. Unless you get a really good deal on a 90, there is no reason not to go with the 92.