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10-26-2007, 02:26 PM
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#1 |
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Addicted to Chevy
Join Date: Dec 2004
Location: Tyler, Tx
Posts: 857
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TPI setup
For $200 would this be a pain in the A$$ to put on my engine? would i need a standalone computer system?
http://dallas.craigslist.org/pts/457291040.html |
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10-26-2007, 02:30 PM
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#2 |
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Registered User
Join Date: Feb 2007
Location: Austin, TX
Posts: 3,930
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Re: TPI setup
It would be an involved swap, but the end result would be quite nice. I'm sure you would see an improvement in gas mileage. You can use the stock computer and wiring. The only other thing I would do is order a flat tappet EFI friendly cam that will work with the stock TPI setup so you make the most of the stock computer tuning. I believe you also need the TPI specific distributor but I'm not sure.
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10-26-2007, 02:31 PM
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#3 |
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Registered User
Join Date: Feb 2003
Location: Midwest City, OK
Posts: 1,001
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Re: TPI setup
Easier if he had the wiring harness, and those can be pricey too.
__________________
Robert Current: 1986 SWB Silverado 4.3 / TH400 Past: 1985 SWB Silverado 305 / TH350 - sold 1995 1987 1/2 ton Silverado - FI 350 / 700R4 sold 2007 |
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10-26-2007, 03:06 PM
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#4 |
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Addicted to Chevy
Join Date: Dec 2004
Location: Tyler, Tx
Posts: 857
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Re: TPI setup
i have a cam that is a little stronger than stock- im not sure the exact specs, they are on the box back at my parents' house. good enough?
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10-26-2007, 07:29 PM
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#5 |
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Registered User
Join Date: Feb 2007
Location: Austin, TX
Posts: 3,930
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Re: TPI setup
I'm not sure of the exact differences but it seems like carbureted and EFI cams are different as far as vacuum signal. I know some people have swapped EFI setups on without even changing the cam and had it work ok, which make sense since GM EFI setups are extremely flexible to begin with. If it's just a slightly above stock cam with a strong vacuum signal, you could probably get away, especially with a mass air flow TPI setup, but there's no guarantee you won't need tuning or will get gas mileage like a stock TPI motor would.
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10-26-2007, 07:35 PM
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#6 |
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Addicted to Chevy
Join Date: Dec 2004
Location: Tyler, Tx
Posts: 857
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Re: TPI setup
well if anyone was interested in buying it in case i was not- go ahead. I dont really have the time to do a major overhaul like that. Please buy away in case you were hesitant and thinking i had dibs on it
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10-26-2007, 08:20 PM
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#7 |
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Registered User
Join Date: Oct 2003
Location: OC CA
Posts: 1,374
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Re: TPI setup
TPI system does not offer as good of low end torque that TBI system would offer. However, TPI with MAF allows a bit more flexibility for a performance engine - i.e. wild cam, high compression, etc.
Anything above RV or mild street cam with a free flowing exhaust would require tuning and burning PROM's for the ECM. Do not forget that EFI swap also requires a high pressure fuel pump (TBI = 13 PSI, while TPI 38 to 48 psi) and return lines. //RF
__________________
"The Beast" 1975 Chevrolet C20 longbed 350/700R4! with 3inch body lift Dual Flowmasters Super 40's! TBI retrofit completed (2007-07-29)  New 383CID (+030) 08-304-8 9.5:1CR x36,005 (2012-12-17) |
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10-26-2007, 09:49 PM
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#8 |
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Professional Grade
Join Date: May 2003
Location: Fort McMurray, Alberta
Posts: 7,915
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Re: TPI setup
I would not buy that setup -- You'll majorly get nickled and dimed to death with having to buy all the stuff it is missing.
If you want to go EFI, get a complete running donor vehicle and swap everything over from it 
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1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap) |
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