Help Carb to TPI - Team Camaro Tech
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post #1 of 8 (permalink) Old May 3rd, 01, 04:21 AM Thread Starter
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Join Date: Oct 2000
Location: St. Louis, MO
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Can anyone help me with this question.
Can I get an old TPI unit and computer from a 3rd Gen Camaro and put it in mine. I heard of a guy who can program the computer to run in high horse power/ higher cube engines. Does anyone know about this?

My goal is better performance,and GAS milege ($1.79 per gallon!!!!!!! ouch)

Tony

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obnoxious 67 camaro under construction. TH350/383 stroker w/ aluminum Edlebroc RPM heads,cam, and carb.
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post #2 of 8 (permalink) Old May 3rd, 01, 12:16 PM
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Try this link www.howell-efi.com and see if someone there can help you.

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Leo Paugh
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post #3 of 8 (permalink) Old May 3rd, 01, 04:57 PM Thread Starter
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Howell sells wiring kits. I was wanting to pull the TPI intake, runners, injectors and wiring and make it work in mine. Also the computer only works with the stock 350 so it has to be programmed for bigger cubes and more horses.

Tony

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post #4 of 8 (permalink) Old May 3rd, 01, 06:21 PM
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I installed a tpi in my 74 3/4 ton truck.I used the factory harness,computer.It,s not too hard,buy a factory service manual.The most difficult part,I felt was the fuel supply system.

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68 z28 ,68 rs 327 ,73 454 vette, 2 goofy kids
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post #5 of 8 (permalink) Old May 3rd, 01, 07:04 PM
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tony
The swap is not hard, but be sure of your goals. The TPI is a very nice setup for a driver, but in stock form it runs out of gas at 4500-5000 RPM. Not hi performance territory.
Check out this site: http://www.jagsthatrun.com and also http://www.fuelinjection.com .. I would recommend a speed density system (90-92) over the MAF system, simply because you do not need to worry about the MAF duct work. Just an opinion.
The only significant difference between a 305 TPI and a 350 TPI is the size of the fuel injectors. The 350 will flow more fuel. Either can be adapted to your motor. The computer does not need to be reprogrammed. You can get an aftermarket chip for it, but the gains will be marginal.
Finally, unless you are very familiar with wiring diagrams and comfortable with reworking one, I would suggest that you get an aftermarket harness. Its possible to redo a factory harness, but any mistakes will be expensive.
Finally (again, but really this time ) do your homework & research. If you have to depend on someone else to fix/troubleshoot everything, it will get real expensive real fast. Planning will pay off. I DON"T know everything about my TPI system, but I know where to find what I need if something goes wrong.

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Rick Schaefer
68 Camaro
72 El Camino
TPI350/700r4
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post #6 of 8 (permalink) Old May 4th, 01, 05:53 AM Thread Starter
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Thanks Rick,
The info on "fuelinjections.com" was real helpful.

Does anyone know how much it will cost to pull a TPI system from a junk/wrecked Camaro/Firebird?

Tony

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obnoxious 67 camaro under construction. TH350/383 stroker w/ aluminum Edlebroc RPM heads,cam, and carb.
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post #7 of 8 (permalink) Old May 6th, 01, 11:59 AM
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Should be about $400. Like said the stock TPI isn't great and everytime you wanna take off the intake you got probly $40-50 in gaskets to replace. Check out TPIS' Miniram. It'll probly run you about $2000 but if you get double the mileage you'll break even at about 25,000 miles. There are a couple TPI books out I'd say start reading as much as you can. Here's some more EFI links... http://www.chevythunder.com/ http://www.isthq.com/~dan/efi.html
This one is basically showing what to port on em. http://www.isthq.com/~dan/fcar.html http://www.diy-efi.org
A chip link...http://www.fastchip.com/
a lotta good links...http://home.swbell.net/nitro57/EFI.HTM http://www.sdsefi.com/


Once it's all said and done I could probly set-up a good computer and performance system for about $3000. With the speed density I would still route the duct work away from the engine. Reason being it will act like cold air induction. One problem I'm getting at the moment with a regular carb filter is hot air coming into the carb. Once I get moving it's no problem but without the duct work it looks good so it's really a give or take.
Also if you decide to get the stock TPI make sure you pick up all the sensors and everything you can even the duct work! But you will have to buy a fuel pump just FYI and maybe an adjustable fuel regulator. Also you'll need 2 fuel lines. Keep in mind it's gonna be a project but WELL worth it!


Also keep an eye on thirdgen.org classifieds, they got stock TPIs on there quite a bit. Usually they don't come with computers but that's alright since a aftermarket computer is probly gonna be better for performance.

[This message has been edited by 67stock (edited 05-06-2001).]
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post #8 of 8 (permalink) Old May 6th, 01, 12:16 PM
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Look on ebay. I seen a polished unit on there for $350 that did not sell. Do some searches on the ended auctions, he might go lower on price. There is alway a ton of TPI stuff on ebay. Heck, I'm selling some runners and injectors on there now.

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