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-   Engine / Power / Tuning (http://www.njfboa.org/forums/forumdisplay.php?f=31)
-   -   fast 90 (http://www.njfboa.org/forums/showthread.php?t=29280)

mtg6486 10-03-2007 11:26 PM

fast 90
 
just got my fast 90mm intake n nw 90mm tb so hell yea. im gunna paint it red 2 match my car ill have pics soon

JerzLT1 10-03-2007 11:41 PM

hope you have h/c or just a BIG cam

Mike 10-04-2007 09:02 AM

have a ls6 for sale?

mtg6486 10-04-2007 07:13 PM

nope just ls1 i just put on 1 coat of paint i gota do like 1 or 2 more and then clear

98tadriver 10-04-2007 07:52 PM

get a good tune! let me know how the driveability is, (part throttle, idle, and WOT)

mtg6486 10-05-2007 04:08 PM

im gunna tune it myself i got hptuners

mtg6486 10-08-2007 11:24 PM

3 Attachment(s)
ok it took most of sunday but its all done. i think it looks real sexy and it didnt need much tuning.

mtg6486 10-08-2007 11:28 PM

3 Attachment(s)
a few more

Tru2Chevy 10-09-2007 10:26 AM

It definitely looks good, but how does it feel on the road? I've heard TONS of stories about lightly-modded cars loosing lots of low-end grunt with a 90/90 setup.

- Justin

BonzoHansen 10-09-2007 11:28 AM

Neat. I might want to paint the intake on my LS1.

mtg6486 10-09-2007 03:19 PM

the power still feels the same and i changed something in my tune that usetoo retard timing during shifts so now its just straight power

Batman 10-09-2007 03:33 PM

You're going to lose alot of low end with a 90, are you planning on future mods?

ins0mnia24 10-09-2007 05:21 PM

Quote:

Originally Posted by Batman (Post 386115)
You're going to lose alot of low end with a 90, are you planning on future mods?

I was waiting for somebody to point that out

There was a member here about 1 1/2 years ago that had a Fast 90 on a cam only car and lost hp & tq then he down graded to the Fast 78 and gained the power back..

A Fast 90 is only needed when you are using Cylinder heads that are capable of flowing over 280 cfm
The stock LS-1 241 casting heads on 2001-2002 Cars only flow 231 at .700 lift which won't even put most people close to even needing it..
Unless you are using a Huge *** cam..

Batman 10-09-2007 09:11 PM

I agree, going to a 78 would gain you at least 10 ponies and alot of low end grunt

mtg6486 10-09-2007 10:30 PM

the power feels great to me it pulls real hard and yes i do have future mods planned. either heads n cam or some type of forced induction like a turbo or super charger but well see how things go. i wana get my suspension mods done as well as a stronger rear before i move on power wise

Batman 10-10-2007 06:30 AM

As long as you are happy I guess, but that is the wrong intake for your car. You don't need a 90 until you get close to 500 flywheel horse. You're engine just doesn't suck in enough air to use all that CFM and the velocity is just wasted. It's like trying to suck a choclate shake through a straw that is a foot wide. It is going to kill your gas mileage also. I did the same thing when I was running my small cam and thought the car was running great, then I swapped the 90 for a 78 and picked up almost 15 Peak ponies, a ton of mid range and about 45 FT LBS of torque., and that was with a cam.

mtg6486 10-11-2007 06:40 AM

i no what your saying but still those intake shells arent cheap so i planed on only buying one and i will continue to mod my car so heads and cam arent far off. i still havent seen an affect on mileage but even if there is with my current job i have a company car with paid gas and my other one is five minutes down the road so i should be alright


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