Steve C.

iTrader: (2)

I was just wondering if it would be worth the money to get the fast intake and the NW 90 TB? with my current modifications (listed below, dyno numbers are on a stock TB )... on a stock displacement engine. I heard ALOT of good things about it, but when i got the H/C done at MTI, the guys there said i shouldnt get the Fast90/90 (cant imagine why they would say that, its just more money im giving them). They said that i could possibly lose alot of low end power i believe they said. Something about a vette had it done there and lost alot down low, and just had the 90/90 removed.

So basically is it worth it to get the Fast 90, maybe get another 20ish rwhp or should i just stick with what i got and spend the 2 grand on a 12 bolt rear?

Any input appreciated, thanks

Doomsday

iTrader: (8)

Id stick with your current setup. Unless you had the LS1 intake yes, but you got the LS6. Not much bang for buck trying the 90/90....then again its your money your car, but I would not.

mcowart

iTrader: (4)

do u have a LS6 intake??if not i would go that route and a ported throttle body..it will give you good gains...the 90/90 would help but imo it only comes into play after 6500 rpms..for extra gains with it..if you are reving to 7000 i would get the 90/90 if not then i wouldnt spend the money...just my.02

davered00ss

iTrader: (4)

Not sure about the size of your cam. With a large cam it will help in the higher RPM's. You will see peak gains, but as stated may loose a little down low.

Steve C.

iTrader: (2)

thanks for the input guys

Its a pretty mild cam, not very big. And yes it does have the LS6 Intake now with an MTI ported/polished TB.

I guess its not worth it, i rarely drive the car at that high of RPM's, if i do its only up there for a very breif period of time

romulo13

Sounds like a great setup to me. Do you know if you will hit 11s in the 1/4 mile?

DBN

iTrader: (6)

What are you basing this opinion on? I have a 346 ci N/A C5 that I dynoed with the LS6 intake and stock TB. Then I did nothing but removed the intake and TB and replaced them with the FAST 90 intake and NW 90mm TB and picked up 18 HP and 18 TQ throughout the powerband. When I hit the gas at 3000 rpms, I was already up 15 HP from the LS6 set up. The dyno graph tapered off at the same rpm with the LS6 and the FAST only with the FAST I had more power and torque.