FAST 90/90 or 92mm?
Alright, here's a option that hasn't been covered yet. Go ahead and get a new FAST 92 intake manifold, and either a FAST 78mmTB adapter(146029-KIT) for around $44, or a CBM #CBM-10708-B tapered adapter for around $90. Then you just use you stock 78mm tb.
BTW, you can also use the FAST TB adapter with the FAST 102 intake manifold.
http://www.coloradospeed.com/fast-ls...e-p-15376.html
http://shop.brutespeed.com/FAST-1460...146029-KIT.htm
http://www.summitracing.com/parts/fst-146029-kit
BTW, you can also use the FAST TB adapter with the FAST 102 intake manifold.
http://www.coloradospeed.com/fast-ls...e-p-15376.html
http://shop.brutespeed.com/FAST-1460...146029-KIT.htm
http://www.summitracing.com/parts/fst-146029-kit
Last edited by 99Bluz28; Dec 19, 2013 at 05:44 PM.
Alright, here's a option that hasn't been covered yet. Go ahead and get a new FAST 92 intake manifold, and either a FAST 78mmTB adapter(146029-KIT) for around $44, or a CBM #CBM-10708-B tapered adapter for around $90. Then you just use you stock 78mm tb.
BTW, you can also use the FAST TB adapter with the FAST 102 intake manifold.
http://www.coloradospeed.com/fast-ls...e-p-15376.html
http://shop.brutespeed.com/FAST-1460...146029-KIT.htm
http://www.summitracing.com/parts/fst-146029-kit
BTW, you can also use the FAST TB adapter with the FAST 102 intake manifold.
http://www.coloradospeed.com/fast-ls...e-p-15376.html
http://shop.brutespeed.com/FAST-1460...146029-KIT.htm
http://www.summitracing.com/parts/fst-146029-kit
My opinion:
Grab the 90/90 and be done. Over 500hp NA has been made through them no problem. No changing fuel rails, and no changing injectors (until you need to)
Sell what you have now, like the intake, TB, extra TB's, and reap the rewards of a good cheap deal.
Grab the 90/90 and be done. Over 500hp NA has been made through them no problem. No changing fuel rails, and no changing injectors (until you need to)
Sell what you have now, like the intake, TB, extra TB's, and reap the rewards of a good cheap deal.
Well, my mom always said to listen to the doctor.....
Registered User
Joined: Nov 2013
Posts: 23
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From: TEXAS
I am leaning this way, good advice, thanks all
Don't let the TB factor your decision a lot. The Fast 90mm TB is crap and will most likely need replaced anyway. I have one and it's been nothing but a nightmare both as far as hanging blade and it refuses to maintain a proper idle. Several tuners on here have said the IAC chamber needs ported on them to make them run right consistently.
I would either try to get a lower price on the 90/90 (then you can try it as is and sell the TB if it is junk) or else just get the 92 and a good TB and be done with it.
There will be 0 hp difference. The 92 was a revision to correct some issues such as the MAP sensor fitting loose and a couple other small things. The size of the TB has very little to do with power gains, it is runner shape and plenum volume that make the fast superior, not the opening size (hence why a 102mm intake with a 90mm tb is still an improvement, new runner design)
I would either try to get a lower price on the 90/90 (then you can try it as is and sell the TB if it is junk) or else just get the 92 and a good TB and be done with it.
There will be 0 hp difference. The 92 was a revision to correct some issues such as the MAP sensor fitting loose and a couple other small things. The size of the TB has very little to do with power gains, it is runner shape and plenum volume that make the fast superior, not the opening size (hence why a 102mm intake with a 90mm tb is still an improvement, new runner design)
