Any trucks running a 90mm FAST?
03-10-2005, 09:23 PM
#2
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You need to cut part of the alternator bracket to clear the throttle body, change the coolant crossover pipes to the LS6's to allow the intake to sit all the way down. Now, as for the truck injectors, I'm not sure because I'm using 42# bosch injectors that fit right on w/ my billet fuel rails. You will also need to relocate the idler pulley to clear the serpentine belt from the throttle body.
03-10-2005, 10:30 PM
#6
If my TB is shot, I doubt I'm putting another stock one on... But after looking at that pic, and since I'm running high boost anyway... Maybe that 80mm BBK sounds better 
Jeff had a FAST 90 on his 427, but didn't get to finish with the TB part.
Jeff had a FAST 90 on his 427, but didn't get to finish with the TB part.
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03-10-2005, 10:45 PM
#8
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I am on my Radix setup,built a aluminum spacer,fitted it to the intake tube then bored the intake tube to match.I'm having a slight problem with the throttle position not returning to a reasonable idle,that seems to be improving with usage.It seems to be a problem with the low speed resolution of the throttle position sensor.A tech with FAST is supposed to fix the problem on monday.
03-11-2005, 09:10 AM
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Originally Posted by mattrem
I quess you need the LS1 water pump also for that?
03-11-2005, 09:13 AM
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I plan on putting the Fast 90mm on soon as well as the LS1 fans I have and most likely the LSX inatke. Even though IM gonna buy the Fast 90mm its gonna be hard to part with that amount of $ for a TB but it looks sweet! I always laugh when I see one in its nifty carrying case!