From a Fast90 to LS2 intake question

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Oct 19, 2009 | 11:02 PM

jmoody66

Thread Starter

Drifting

Joined: Jul 2007

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From: In a house

From a Fast90 to LS2 intake question

Ok so I have a goal of 12 to 14 lbs of boost...maybe more so I sold my Fast 90 and got a ported LS2. I go to install it and my LS6 stock fuel rail will not bolt right up. My assumption is that I have to upgrade to either an LS2 stock setup or just go all out and get an aftermarket fuel rail setup.
Need opinions on least expensive route where pimpin looks doesnt matter...I just want the performance.

Oct 20, 2009 | 01:02 AM

Mike94ZLT1

Le Mans Master

Joined: Jun 2002

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From: In the pit, trying to love someone.

Get a TPIS modified LS6 intake with a 90MM snout. Flows better, and uses your stock fuel rails. Selling your FAST should cover the cost of one.

Oct 20, 2009 | 01:10 AM

0331MARINE

Safety Car

Joined: Oct 2007

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From: You know your drunk when you swerve to miss the tree then you realize its your air freshener! Covington Ga

I think they make a kit (small spacers) to make the LS1/LS6 fuel rails fit on.

Oct 20, 2009 | 01:50 AM

geocor2003

Racer

Joined: Dec 2003

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From: ft. Worth tx.

Quote:

Originally Posted by Mike94ZLT1

Get a TPIS modified LS6 intake with a 90MM snout. Flows better, and uses your stock fuel rails. Selling your FAST should cover the cost of one.

Hmmm,was going to get a fast 92.Lot of documentation backing your claim up?

Oct 20, 2009 | 08:52 AM

Mike94ZLT1

Le Mans Master

Joined: Jun 2002

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From: In the pit, trying to love someone.

Quote:

Originally Posted by geocor2003

Hmmm,was going to get a fast 92.Lot of documentation backing your claim up?

I'm not saying a TPIS intake outflows a FAST intake, however they are close and bang for the buck the TPIS intake is a better value. It does however flow significantly better than an LS2 manifold.

Oct 20, 2009 | 08:55 AM

AU N EGL

Team Owner

Joined: Sep 2003

Posts: 43,084

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From: Raleigh / Rolesville NC

I run an older TPIS ported 78tb on the LS6intake. Very happy with the power and torque produced.

Many guys who road race chose this set up for power and torque vs the Fast products

Oct 20, 2009 | 03:13 PM

zeevette

Race Director

Joined: Sep 2005

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From: Pasco WA

The problem is, sounds like he already has the LS2 mani setup. For a FI install, the intake manifold will make very little difference. If the mounting tabs line up, just get spacers to clear the runners, and use your LS6 fuel rail. If not, maybe you can bend/redrill them to fit.

Oct 22, 2009 | 03:19 PM

jmoody66

Thread Starter

Drifting

Joined: Jul 2007

Posts: 1,352

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From: In a house

setup

Quote:

Originally Posted by zeevette

Yes I already regretfully sold my ported Fast 90 due to my wanting to up the boost and I forgot to mention that I had the motron 60lb injectors and yes I already got the LS2 ported unit. Ive already purchased the proper fuel rails capable of supporting 1k hp and all the supporting hardware so hopefully next week I will be up n running. Thanks for all the input guys.