3rd Gen / L98 Engine Tech 1982 - 1992 Engine Related

92 305 TBI to TPI swap

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Old Apr 25, 2005 | 07:11 AM
  #1  
Slow91z's Avatar
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From: Dover A.F.B. Delaware
92 305 TBI to TPI swap

What all is needed to do this swap??

Also to complicate the matter we're thinking about using an older 2 pcs. rear main 355 with trickflow heads and a healthy cam, and a holley stealth ram intake.

Do the TBI and TPI car's use the same computer?? Do we need a TPI ECM or will a chip change work?? What about the harness?? any sensors interchange between the TPI and TBI??

Thanks for any and all help fellas, this is going in a 5 speed car also just to let you know.
Old Apr 25, 2005 | 06:40 PM
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Re: 92 305 TBI to TPI swap

You will definately need the harness, chip and ecm. They say if you use a harness from the same year you wont have to make any modifications to it, but im not sure about that.
Old Apr 25, 2005 | 06:43 PM
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From: Elgin,IL
Re: 92 305 TBI to TPI swap

im doing this now
instead of listing it all here go to www.thirdgen.org in the tech articles theres an article on this.
its quite a bit but its doable
Old Apr 25, 2005 | 11:27 PM
  #4  
Slow91z's Avatar
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From: Dover A.F.B. Delaware
Re: 92 305 TBI to TPI swap

Originally Posted by Black305RS
im doing this now
instead of listing it all here go to www.thirdgen.org in the tech articles theres an article on this.
its quite a bit but its doable
Thanks Black that was quite helpful.

Any other input will be welcomed.
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