Ive got an LS2 intake thats brand new. Im going to swap to the car intake since it looks so much better. I would need to buy a NW 90mm TB for the LS2 intake. Would it be better to just get the LS6 and keep my current TB?? I would think that the 90mm LS2 with 90mm TB would make more power than an LS6 with 75mm TB (and look better). What do you think?? Im going to be going with the 60 mototrons as well and may keep the truck rails if I cant find the 97 Corvette rails.

 

view this chart if you can, if you cant let me know and ill copy paste it

http://pittspeed.com/forums/showthread.php?t=24851

some info on the ls2/ls6/fast 90

 

Doesn't the 90mm have a different bolt pattern then the 75mm. I think it uses 4 bolts instead of 3?!

 

For what its worth Troy, Jerry has tried them both and they did not improve his times any compared to the stock ls1 intake

 

I scanned an intake comparison from Street Thunder magazine a while back that compared several intake variations. Here they are...

 

damn, that's some great info thanks! So the Weiand is meant for boost applications?

 

that certainly helps!!
alright. Im still going to see if I can get a deal on an LS6. Couldnt hurt right?? Are you still running the truck intake David?

 

i think my LS6 intake will be up for sale come winter time

 

WHY??? you just put it on the new motor didnt you?

 

yep, reason for winter as long as the trans holds up to the power. im probably going worked over 243 castings, fast 90/90, would likd to get 11.5 CR, and possibly along with a direct port nitrous setup

i want a good solid 11 NA slip and then a 10s slip as long as **** holds up if it doesnt then stock LQ9 will or LS2 will drop in there