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FAST PORTED to a FAST UNPORTED? ? ?

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Old Jan 3, 2008 | 11:58 PM
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Default FAST PORTED to a FAST UNPORTED? ? ?

What is the approximate hp gains as porting the Fast 90/90 setup. i heard from a friend about 10/15 hp. Is that true or just a myth?
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Old Jan 4, 2008 | 12:01 AM
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We have seen anywhere from 5-14rwhp increases when doing our portwork to a FAST 90mm manifold. Depends alot on head selection and maximum RPM being turned.
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Old Jan 4, 2008 | 05:30 AM
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with your cam and heads in your sig, i would say you would benefit from it with a good tune...possible 8-10 rwhp
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Old Jan 4, 2008 | 07:35 AM
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Get it ported. I had a poll a while back about it and it was like 20 to 1 for porting it.
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Old Jan 4, 2008 | 08:59 AM
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if you can spend $1200 on a FAST 90/90 to gain 20hp...why not spend another $250 for the porting and gain another 10-15hp?
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Old Jan 4, 2008 | 10:37 PM
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How much h/p can u gain if u port fast 78mm intake ?
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Old Jan 5, 2008 | 02:08 AM
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get a professional products 90mm TB then get a fast 90 and get it ported there ya go
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Old Jan 5, 2008 | 05:25 PM
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If i can get a used fast 78mm lsx for around $400-$450.00, Is it good deal ????
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Old Jan 5, 2008 | 11:20 PM
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When I get my new cam and intake mani, I'm going 90/90 ported...hopping to make some descent power cam only....
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Old Jan 5, 2008 | 11:24 PM
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78mm FAST intakes are a waist IMHO. if you're gonna blow the money, go 90mm. i ported mine for FREE, less the cost of sanding rolls. went from 393rwhp through factory 10-bolt to 417rwhp through a 9".

there's a few threads on here about how to port a FAST yourself. Our sponsors know a few tricks we don't i'm sure, and have flowbench access, BUT there are several places you can easily work one over yourself and get SOTP gains
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Old Jan 7, 2008 | 09:16 AM
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Originally Posted by 2000_SS
78mm FAST intakes are a waist IMHO. if you're gonna blow the money, go 90mm. i ported mine for FREE, less the cost of sanding rolls. went from 393rwhp through factory 10-bolt to 417rwhp through a 9".

there's a few threads on here about how to port a FAST yourself. Our sponsors know a few tricks we don't i'm sure, and have flowbench access, BUT there are several places you can easily work one over yourself and get SOTP gains
The 78 MM FAST and 90 MM fast are only about 3~5 HP different according to research Tony has done so if you can pick up a 78 cheap I'd go for it. I did! :thumbs:
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Old Jan 7, 2008 | 11:32 AM
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Originally Posted by teke184
if you can spend $1200 on a FAST 90/90 to gain 20hp...why not spend another $250 for the porting and gain another 10-15hp?
$250?? I paid approx $760 for my Fast, and was quoted around $350-$400 to port it.
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