H/C 90/90 car #'s

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Jan 23, 2007 | 03:53 PM

2000ZNight

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Staging Lane

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H/C 90/90 car #'s

I'm looking at going with the TSP cnc heads the same ones that were in GM High Tech mag and a 90/90 setup. I just wanted to see some numbers off some real cars. I also would like some feedback from the guys that have done all this with the same mods that I have or close to same. If anyone has dyno results on there spread sheets could u please post.
Thanks

Jan 23, 2007 | 03:59 PM

delinquent543

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think a 90/90 is too big for stock cubed motor? unless u plan on swapping the motor any time soon an ls6 intake would be sufficent.. just my 2 cents. any gains might be minimil and u might have idling problems... maybe im completely wrong here

Jan 23, 2007 | 04:02 PM

ULTIMATEORANGESS

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From: eatontown,nj

im a H/C car with a FAST and a 90MM NWTB and my car idles fine.

Jan 23, 2007 | 04:03 PM

Blue Meanie

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mmmm, my 90/90 is great, does the job

Jan 23, 2007 | 05:53 PM

1stz06

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From: Houston, TX

I posted my graph in the dyno section 450/421. The 90/90 combo did pick up some power for me but it wasn't much without porting. You give up some on the bottom to gain it up top. It is a must have if you are wanting serious power. Spend the extra few hundred dollars and have someone like Tony Mamo port it for you.

Best wishes,
J.R.

Jan 24, 2007 | 07:48 AM

ringram

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From: Sunny London, UK

Went from 0.86g/cyl to 0.90g/cyl with just the intake change Fast90/NW90
Definately worth it, thats on stock LS1 from a ported TB and LS6 intake.

Jan 24, 2007 | 07:58 PM

2000ZNight

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Staging Lane

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Hey J.R. what other mods do u have? Is ur's a m6 or auto? I didn't see the dyno sheet I'm blind 60% of the time.

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Jan 25, 2007 | 10:37 AM

1stz06

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From: Houston, TX

2000Z, I am running 228/232 588/592 110+1 (Patrick G spec cam), AFR 205's milled .020, LG Pro headers, and fast 90/LS2 TB. Great street/strip set-up. My car is putting down 350RWTQ at 2500RPM. It is a TQ monster!!!