How are the new FAST92 for boost
06-18-2009, 07:30 PM
#1
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How are the new FAST92 for boost Trying to pick if i should stay ls2 Stock manifold or go with the FAST92.
I know the old ones were leaking. How are the new ones? How much psi can they hold ? Would it be worth upgrading to ? Anyone selling one cheap ?
I know the old ones were leaking. How are the new ones? How much psi can they hold ? Would it be worth upgrading to ? Anyone selling one cheap ?
06-19-2009, 06:28 PM
#6
Fast 90 at 8psi here. Checked it the other day with auto smoke machine,no leaks.Tony Mamo and others can tell you about the fast especially the fast 92. Are you planning on going over 20psi? if so then might want to consider something else possibly. If you are staying under 20psi doubt you will have any problems. There are lots of build running them up to that 20psi range.
No idea what caused the failure on the above posters fast. But its not common.
Afr runs fast in couple of 1000 hp builds linked on their website. Aps ran fast 90 on their build to near 20psi. There are lots of fast combos in the ls1 dyno book on FI engines.
I loctited my hardware that holds the shells together .I made sure the inner rope seal was in there right and rtved it at the joints.Also I drilled and tapped the back map port and use it as main vacuum feed now with map relocated.
I might go to 92 over winter or might not. I won't be pushing 20psi this season with my build .Possibly 10 or 12psi .That will be more than enough for me this season. Next season might go to 15 or so or upgrade turbos in which case won't need much more than 12 or 15psi.
I am a bit unsure if should have bothered to put in burst panels. They might be a failure point but would think could just put in solid plates if have problem. I don't think can get a nitrous backfire on my direct port setup??? Any of you nitrous gurus know if can??
No idea what caused the failure on the above posters fast. But its not common.
Afr runs fast in couple of 1000 hp builds linked on their website. Aps ran fast 90 on their build to near 20psi. There are lots of fast combos in the ls1 dyno book on FI engines.
I loctited my hardware that holds the shells together .I made sure the inner rope seal was in there right and rtved it at the joints.Also I drilled and tapped the back map port and use it as main vacuum feed now with map relocated.
I might go to 92 over winter or might not. I won't be pushing 20psi this season with my build .Possibly 10 or 12psi .That will be more than enough for me this season. Next season might go to 15 or so or upgrade turbos in which case won't need much more than 12 or 15psi.
I am a bit unsure if should have bothered to put in burst panels. They might be a failure point but would think could just put in solid plates if have problem. I don't think can get a nitrous backfire on my direct port setup??? Any of you nitrous gurus know if can??