TBI cam upgrade
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Joined: Mar 2007
Posts: 169
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From: San Leon, TX
Car: 91 RS and 88 IROC-Z
Engine: 305 TBI and 383 Carb
Transmission: 700R4/2200 stall & 700R4/3500 stall
Axle/Gears: 3.42 posi and 4.11 posi
TBI cam upgrade
I'm looking to upgrade the cam in my 91 RS 305 tbi roller motor. I have some bolt on's like edlebrock tbi intake, edlebrock headers/exhaust, under drive pulley's, accel ignition and a chip in the computer. It's my daily driver, I have my 88 IROC-Z for the weekends. I'm thinking about getting a long block from a local engine shop and wanted to upgrade the cam a little while being able to keep the computer and everything still run good. Any idea's??
Thread Starter
Member
iTrader: (1)
Joined: Mar 2007
Posts: 169
Likes: 0
From: San Leon, TX
Car: 91 RS and 88 IROC-Z
Engine: 305 TBI and 383 Carb
Transmission: 700R4/2200 stall & 700R4/3500 stall
Axle/Gears: 3.42 posi and 4.11 posi
Re: TBI cam upgrade
Nobody has any info to help me out??
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
This is more TBI forum material than Engine Swap.
Moving.
Moving.
Last edited by five7kid; Feb 25, 2010 at 12:06 PM.
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Joined: Apr 2002
Posts: 374
Likes: 0
From: charleston,SC
Car: 1990 Camaro RS (IROC-Z Clone)
Engine: LO3
Transmission: T-5
Axle/Gears: 3.08
Re: TBI cam upgrade
Your going to hear alot about the LT1 cam, however pretty much anything you go with is going to require a new chip. Good luck.
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iTrader: (1)
Joined: Mar 2005
Posts: 696
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From: Springfield,Mo
Car: 87 Berlinetta,work in progress
Engine: 468 BB,still in the build process
Transmission: TH350,3500 stall
Axle/Gears: 9" Ford,learning how to live under
Re: TBI cam upgrade
I have ran a Mellings MTC-1 with the stock chip,with success.It gained a noticable amount of low-mid rpm power,but it would have benefitted from a properly tuned chip.
Thread Starter
Member
iTrader: (1)
Joined: Mar 2007
Posts: 169
Likes: 0
From: San Leon, TX
Car: 91 RS and 88 IROC-Z
Engine: 305 TBI and 383 Carb
Transmission: 700R4/2200 stall & 700R4/3500 stall
Axle/Gears: 3.42 posi and 4.11 posi
Re: TBI cam upgrade
Thanks for the help. Sorry for posting in the wrong section.
Re: TBI cam upgrade
comp cams suggests 206/212 at.50 112 LSA for TBI. you can keep your ECU regardless of cam choice. You will see max benefit from an improved chip with a cam swap.
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