Opinions of FAST intake w/ FI
Thread Starter
On The Tree
Joined: Jan 2004
Posts: 152
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From: Buffalo, NY
Opinions of FAST intake w/ FI Would the FAST intake and 90mm Throttle body be worth the expense with a FI setup? I currently have the LS6 intake / Stock throttle body / D1SC @ 8lbs. I don't know if it will make as much of a difference as compared to an N/A car.
Opinions...worth it? Yes / No...
Opinions...worth it? Yes / No...
Any gain you receive naturally aspirated will double at 1 bar of boost (14.7 psi) theoretically. So if a FAST intake gives you 20 rwhp gain on your naturally aspirated motor, it will be worth 40 rwhp at 1 bar of boost. Most people are going to tell you just to turn up the boost and make up the power that way, but remember, boost is a measure of restriction. A FAST intake lowers restriction and allows you to make more power with the SAME amount of boost.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
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it takes a hell of a lot of boost to "break" a FAST. Allan over at FMS is tuning a turbo car right now that makes somewhere in the range of 900hp and it finally blew out the burst disk. Doesn't sound like the actual intake is harmed though.
Originally Posted by Zeus
it takes a hell of a lot of boost to "break" a FAST. Allan over at FMS is tuning a turbo car right now that makes somewhere in the range of 900hp and it finally blew out the burst disk. Doesn't sound like the actual intake is harmed though.
Good to know, Thanks
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Originally Posted by Zeus
it takes a hell of a lot of boost to "break" a FAST. Allan over at FMS is tuning a turbo car right now that makes somewhere in the range of 900hp and it finally blew out the burst disk. Doesn't sound like the actual intake is harmed though.
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The gains from the FAST wont justify the cost. If u wanted to squeeze the last few HP in your setup then go with a FAST or LS2 90mm manifold, otherwise save your money on something else such as a forged bottom end so you can run more boost later on.
Originally Posted by INTMD8
We blew the bottom out of the fast intake on our shop car, swapped an LS6 on it and it went from 153mph to 152mph trap speeds.
Doing a new setup with a single plane intake next.
Doing a new setup with a single plane intake next.
What about the BBH SSI?
https://ls1tech.com/forums/generation-iii-external-engine/413305-inside-bbk-ssi-manifold.html
intake cablebandit did the ls2 intake with the mark williams tb and lost maybe hell chime in here.
Originally Posted by Firehawk853
Would the FAST intake and 90mm Throttle body be worth the expense with a FI setup? I currently have the LS6 intake / Stock throttle body / D1SC @ 8lbs. I don't know if it will make as much of a difference as compared to an N/A car.
Opinions...worth it? Yes / No...
Opinions...worth it? Yes / No...
TECH Apprentice
Joined: Jan 2004
Posts: 337
Likes: 0
From: Frisco TX (Dallas Area)
Originally Posted by Patrick G
Any gain you receive naturally aspirated will double at 1 bar of boost (14.7 psi) theoretically. So if a FAST intake gives you 20 rwhp gain on your naturally aspirated motor, it will be worth 40 rwhp at 1 bar of boost. Most people are going to tell you just to turn up the boost and make up the power that way, but remember, boost is a measure of restriction. A FAST intake lowers restriction and allows you to make more power with the SAME amount of boost.
Originally Posted by TeeKay
Werd. A user recently posted in another thread about FI and restriction, that he had swapped the LS6 for the FAST and the boost dropped 2 psi and he dyno'd about the same.
I still want to shoot out a single plane vs a sheetmetal intake on my car, all I need is the single plane which I might just order now, and an elbow. We can rig up the induction for the test. This would happen only after I go turbo.