TBI swap
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Joined: Aug 2005
Posts: 145
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From: Chicago IL
Car: 89 Camaro RS
Engine: 350 TPI L98
Transmission: 700r4 w/ shift kit and 2500 stall
Axle/Gears: 2.77 one tire fire!!
TBI swap
I want to get rid of the old TBI and move on to fuel injection with the remanufactured 350 im putting in my 89 RS. What is the best method to do this? Cheapest way? Anything will help. Thanks guys.
Joined: Feb 2001
Posts: 13,753
Likes: 560
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
TBI is fuel injection 
You can always covert to multi port (TPI, Stealthram, miniram, tunnel ram or any other system with the word ram in it
).

You can always covert to multi port (TPI, Stealthram, miniram, tunnel ram or any other system with the word ram in it
). Thread Starter
Member
Joined: Aug 2005
Posts: 145
Likes: 0
From: Chicago IL
Car: 89 Camaro RS
Engine: 350 TPI L98
Transmission: 700r4 w/ shift kit and 2500 stall
Axle/Gears: 2.77 one tire fire!!
thats what i meant....how hard is one of these swaps? would i have to completely swap the computer and harness?
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Joined: Mar 2003
Posts: 539
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From: Hughesville MD
Car: 1991 Camaro Z28
Man the swaps are pretty straight forward. If you want to swap to TPI that is pretty easy. You can usually get the entire setup for under 500 bucks on ebay and don't for get about the fuel pump.
Joined: Jan 2005
Posts: 10,409
Likes: 492
From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
I have run a TPI on a slightly modified TBI harness and 7747 ECM. Its called prom tuning. The edelbrock MPFI conversion .bin file for a 7747 works almost perfect after a little tweaking!
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Joined: May 2004
Posts: 4,345
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From: Brighton, CO
Car: '72 Chevy Nova
Engine: Solid roller 355
Transmission: TH350
Axle/Gears: 8.5" 10-bolt 3.73 Posi
You'll need an ECM, harness and all the accessories for the intake.
I'd recommend the stealth ram, extremely easy to install compared to most others.
I'd recommend the stealth ram, extremely easy to install compared to most others.
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Thread Starter
Member
Joined: Aug 2005
Posts: 145
Likes: 0
From: Chicago IL
Car: 89 Camaro RS
Engine: 350 TPI L98
Transmission: 700r4 w/ shift kit and 2500 stall
Axle/Gears: 2.77 one tire fire!!
Does this look like a decent setup to anyone? Its thge only complete one i could find on ebay.
http://cgi.ebay.com/ebaymotors/82-92...96549552QQrdZ1
http://cgi.ebay.com/ebaymotors/82-92...96549552QQrdZ1
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Joined: Apr 2005
Posts: 266
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From: New Milford CT
Car: Trans AM
Engine: 305 TBI LO3
Transmission: W/C T-5
Axle/Gears: 3.42 Open
i want to do this to my new motor also(sry to hijack the thread) im in the process of building a 355 motor with RPM Performer heads, a Com xtreme engery cam and JE forged .040 over pistons. i was wonder what i would have to modify for the conversion to work on my car, i have a digital dash. and also what intake would i need to use on a 74 350 motor so i could run tpi?
Member
Joined: Apr 2005
Posts: 266
Likes: 0
From: New Milford CT
Car: Trans AM
Engine: 305 TBI LO3
Transmission: W/C T-5
Axle/Gears: 3.42 Open
i want to do this to my new motor also(sry to hijack the thread) im in the process of building a 355 motor with RPM Performer heads, a Com xtreme engery cam and JE forged .040 over pistons. i was wonder what i would have to modify for the conversion to work on my car, i have a digital dash. and also what intake would i need to use on a 74 350 motor so i could run tpi?
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