TPI question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jmanz69 · 07-19-2003, 09:20 PM

I am going to put TPI on my 327, but I am looking for any info you guys might have on harnesses. I have the intake setup with most sensors (actually have 2 of them), but have no harness or ECU. The setup I have right now is a mass air floww type, but I have heard that you should change to the Speed Density type for ease of install. Is it hard to do? Where is the best place to get the harness. I assume an aftermarket stand alone harness is better than trying to modify an OEM harness.

Any help would be appreciated while I try to gather all the parts to make it as easy as possible.

Thanks

jmanz69

Custom 68 · 07-19-2003, 10:00 PM

jman I am doing the same thing. However I did get the ECM and harness I have sliced and diced the harness but have not got the engine in yet to know if I did it all correct. I would suggest going to Chevy Thunder this guy has harness that are somewhat cheaper. This website I got all my info to convert my harness and get rid of the wire I didnt need.
I am going MAF they say it is more forgiving when it comes to mods. Remember the ECM is different for the MAF and the speed density. I am sure it is easier but I am going the other route. I am aways off from firing up mine but it is all together and looks good just on teh stand for now.
PM me with any other questions or progress reports I am ready to finish mine but it wil be a while. The truck is apart for a resto

good luck and keep me posted.
Dave

Custom 68 · 07-19-2003, 10:01 PM

Also painless wiring probably has one of the best setups for the wiring.

supercheyenne · 07-19-2003, 10:18 PM

http://www.fuelinjection.com/portinj.html

also has some info to help you along. Chevythunder (already mentioned) is a good site too.

07-19-2003, 09:20 PM	#1
jmanz69 Careful, they attack... Join Date: Aug 2001 Location: Waterford, MI, USA Posts: 1,107	TPI question I am going to put TPI on my 327, but I am looking for any info you guys might have on harnesses. I have the intake setup with most sensors (actually have 2 of them), but have no harness or ECU. The setup I have right now is a mass air floww type, but I have heard that you should change to the Speed Density type for ease of install. Is it hard to do? Where is the best place to get the harness. I assume an aftermarket stand alone harness is better than trying to modify an OEM harness. Any help would be appreciated while I try to gather all the parts to make it as easy as possible. Thanks jmanz69

07-19-2003, 10:00 PM	#2
Custom 68 Registered User Join Date: Nov 2001 Location: Springfield, MO Posts: 2,932	jman I am doing the same thing. However I did get the ECM and harness I have sliced and diced the harness but have not got the engine in yet to know if I did it all correct. I would suggest going to Chevy Thunder this guy has harness that are somewhat cheaper. This website I got all my info to convert my harness and get rid of the wire I didnt need. I am going MAF they say it is more forgiving when it comes to mods. Remember the ECM is different for the MAF and the speed density. I am sure it is easier but I am going the other route. I am aways off from firing up mine but it is all together and looks good just on teh stand for now. PM me with any other questions or progress reports I am ready to finish mine but it wil be a while. The truck is apart for a resto good luck and keep me posted. Dave __________________ Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!"

07-19-2003, 10:01 PM	#3
Custom 68 Registered User Join Date: Nov 2001 Location: Springfield, MO Posts: 2,932	Also painless wiring probably has one of the best setups for the wiring. __________________ Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!"

07-19-2003, 10:18 PM	#4
supercheyenne Registered User Join Date: Dec 1999 Location: Newton, KS, U.S.A. Posts: 1,142	http://www.fuelinjection.com/portinj.html also has some info to help you along. Chevythunder (already mentioned) is a good site too.



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