78mm FAST over the LS6 intake????
Advanced
Joined: Apr 2006
Posts: 70
Likes: 0
Originally Posted by Scooter1964
Thanks for the input guys. I guess I have a few more days to do some research.
Last question.Maybe.
The FAST 90 has to have a TB run by cable or will it accept one like the one on the car now? If not how much trouble to change over?
Last question.Maybe.
The FAST 90 has to have a TB run by cable or will it accept one like the one on the car now? If not how much trouble to change over?the ls2 TB is an electronic one like the c5,
BUT you have to buy(or make) an adapter harness to make the c5 harness plug into the c6 TB
Advanced
Joined: Apr 2006
Posts: 70
Likes: 0
Originally Posted by sprayedc5
Does the fast intake come with this piece that I posted in this thread.
http://forums.corvetteforum.com/show....php?t=1388889
http://forums.corvetteforum.com/show....php?t=1388889
You dont need that piece off your old intake, there is a place for the brake booster hose and the MAP(but the placement for the MAP on the FAST is a PIA so I usually remote run the MAP sensor)
makes it easier for me
Drifting
Joined: Jul 2004
Posts: 1,713
Likes: 2
Originally Posted by Noodle
We at MTI racing just did a 90mm fast and ls2 TB on and 03 z06, that has a 6.6 ls2 stroker in it, it was running a ls6 intake with a ported tb.
Reese just got done tuning it with the new setup and I heard it was like a 20rwhp gain.
didnt get a chance to look at the graphs so I dont know the torque or how the graph differed
Reese just got done tuning it with the new setup and I heard it was like a 20rwhp gain.
didnt get a chance to look at the graphs so I dont know the torque or how the graph differed
MTI Racing is putting a FAST intake and 90mm tb on my 427 and I am not scared in any way!
Uneducated autodidact
Joined: Feb 2001
Posts: 5,414
Likes: 253
From: West of the Sabine, Texas
Originally Posted by Ikester
They do work extremely well when sealed properly. From what Ive read, the warped issue can be fixed by grinding down some material to make it a smooth flat surface. But you have to be careful when doing this. You wont know for sure until you install it and check for leaks. 
Melting Slicks
Joined: Feb 2002
Posts: 2,613
Likes: 1
From: Winston Salem NC
Scooter,
Please come back and tell us how it went. Use the bolts Fast supplies for the valley cover, follow the directions and no grinding will be needed. I predict it will all fall in place.
Joe
Please come back and tell us how it went. Use the bolts Fast supplies for the valley cover, follow the directions and no grinding will be needed. I predict it will all fall in place.
Joe
Uneducated autodidact
Joined: Feb 2001
Posts: 5,414
Likes: 253
From: West of the Sabine, Texas
What's the difference in the bolts that hold down the valley cover? I picked up a used FAST 90 and didn't get any of the original hardware with it...is that the source of interference (i.e. grinding needed) that the other poster referenced?
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
5 Best & 5 Worst Corvette Daily Drivers
Joe Kucinski
The Headlights of Every Corvette Generation Explained
Joe Kucinski
5 Best & 5 Most Overrated Corvette Track Packages of All Time!
Joe Kucinski
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
Melting Slicks
Joined: Feb 2002
Posts: 2,613
Likes: 1
From: Winston Salem NC
Originally Posted by Scooter1964
Anyone know the best place to find an adapter to hook up the ls2 tB to my wiring harness and how much they cost???
http://forums.corvetteforum.com/show...wiring+harness
Advanced
Joined: Apr 2006
Posts: 88
Likes: 0
From: Winchester California
I had a FAST 78 for a little over a year. Just replaced the top shell to go to the FAST 90 with the LS 2 Throttle Body. Increase of about 20 RWHP on the Dyno. No issues with the FAST intakes!
