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Old 02-08-2004, 04:00 PM
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tpi system on a non tpi setup

Can anyone here give me a basic rundown on the major mods needed to be done when installing a TPI on a non tpi setup. I think I have most of my bases covered however I'd like some more information just to make sure.

I am getting a tpi from a 85 vette so it will fit my older style cylinder heads. I currently run a 350 with a 600 carb and torker intake and am soon hopefully swapping in a TPI system.

Thanks all,

Regards,

Dylan.

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Old 02-18-2005, 09:27 PM
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I' m pretty sure ,but not exactly positive about TPI, but i believe you might have to swap out your heads or get a vortech intake.....see when i converted my 383 stroker from carburated to F.I. i had to get a set of heads off of a F.I. engine from the junk yard, because my TBI intake would't bolt on...the F.I. heads have more of a slant to 'em so the F.I. intake wouldn't bolt on (it was so close it wasn't funny) I also herd that they make a vortech intake that will fit carb. heads,but allows you to convert it to F.I., but i'm not sure if they have one available for TPI since it's intake is almost totally differnt from TBI
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Old 02-18-2005, 11:05 PM
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Is this a test?

Quote:
Originally Posted by Siggy_Freud
Can anyone here give me a basic rundown on the major mods needed to be done when installing a TPI on a non tpi setup. I think I have most of my bases covered however I'd like some more information just to make sure.

I am getting a tpi from a 85 vette so it will fit my older style cylinder heads. I currently run a 350 with a 600 carb and torker intake and am soon hopefully swapping in a TPI system.

Thanks all,

Regards,

Dylan.
Did someone hi-jack your computer? Siggy, you normally answer these questions.

First off, you already know that by getting the 85 Vette manifold, it will fit your older style heads without issue.

Is it your plan to keep it MAF and use the ECM and harness from the Vette. Personally, I would convert to a SD system. But if cash is an issue, salvage the ECM and harness from the Vette. Also get every sensor screwed into the original engine. Make sure you get the distributor and VSS sender at the transmission. Get the accessory brackets and accessories if you can. Get all the cables and brackets that are attached to the TPI. Take pictures before it is disassembled, if possible. EDIT: Make sure you get the factory fuel lines that goes from the TPI fuel rail over to the frame/chassis. I think the Vette is different, but here are the factory GTA lines:



I am sure I am missing something, so check out www.chevythunder.com. This a good source for TPI swaps and the different ECMs, etc. Also read up at www.customefis.com. And finally, you can never run out of sources at www.thirdgen.org.

DO NOT even think about buying a "custom" chip. There is no such thing as a "Custom" chip, it is a myth!!!! I have recently invested in equipment to read and burn my own PROMs. The intial cost to burn chips is less than most custom chips. A custom chip is nothing more than a factory Vette or Z-28 EPROM with the upper level VE and spark tables tweaked a bit. It is a fraud. Whew, glad I got that off my chest.

This seems overwhelming at first, but it is not hard to do. Things are getting easier by the day. Thirdgen is invaluable. There are guys over there that are writing new code that the factory left out. I also plan on documenting my tuning works on the TPI Suburban swap. It will include all the valuable information I gathered and used when tuning and troubleshooting my swap.

If you have any specific questions, fire away. Ed www.edgesz28.com

Last edited by edge; 02-18-2005 at 11:14 PM. Reason: Thought about something else.
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