TPI Conversion Guys Out There......Question. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Deuce · 12-03-2004, 07:01 PM

Can anybody tell me what I need to keep out of a factory 87 IROC harness to make the engine in my 68 work??
I'm in the process of pulling the motor/trans out of the car and there are a ton"o"wires!! What can I eliminate??
Thanks in advance!!

71swb4x4 · 12-03-2004, 07:22 PM

I would recommend not eliminating anything until you get the whole thing out.
After that you can eliminate the wipers, and air conditioning. You can eliminate the following if you aren't using them: electric fans, EGR, charcoal canister, and AIR pump.
I am sure I am forgetting a few things too.

Deuce · 12-04-2004, 01:44 AM

Quote:

Originally Posted by 71swb4x4

I would recommend not eliminating anything until you get the whole thing out.
After that you can eliminate the wipers, and air conditioning. You can eliminate the following if you aren't using them: electric fans, EGR, charcoal canister, and AIR pump.

So I don't need the EGR or Charcoal canister???

CHEVYE · 12-03-2004, 08:29 PM

yeah make sure and pull it all, dist, wires, complete harness, ecm under pass side dash, air intake duct prior to engine. make sure and get all sensors too and i would even snag the press regulator and fuel pump. it stinks missing anything and hunting it down.

neonlarry · 12-03-2004, 11:28 PM

its not hard to get all of the wireing out (I would know, I have pulled 2, and taken a 3rd one partway apart) just start at the computer, and follow it around to the bulkhead connector on the other side.

Deuce · 12-04-2004, 01:50 AM

Can a mod move this to the messege board please.
Sorry for posting in the wrong section...............I was in a hurry to leave work!!!

gonebad2 · 12-04-2004, 02:10 AM

I parted a 99 Camaro( LS-1 Automatic) and was totally amazed at the amount of wiring that was in that car. I cut no wires and carefully removed everything from the taillights to the headlights. I even left everything just as it was connected at the factory. If a sheetmetal panel was in the way, I cut it or split it just to keep the entire harness intact. This was complete overkill and a major pain. Most of the wiring was not needed for a conversion and was later tossed. The pile of wiring was actually taller than the engine when it was piled next to it.

Deuce · 12-05-2004, 02:50 PM

Anybody try using the electric fans and rad from the camaro also??

71swb4x4 · 12-06-2004, 02:14 PM

Deuce
I am not using the charcoal canister or EGR on mine. I did have the chip reburned to compensate for the EGR removal.

Deuce · 12-06-2004, 03:47 PM

Quote:

Originally Posted by 71swb4x4

Deuce
I am not using the charcoal canister or EGR on mine. I did have the chip reburned to compensate for the EGR removal.

Are you using a speed density system or mass air?? I'm using the mass air(87 IROC)
Can tou tell me what I need to keep??
Thanks.

71swb4x4 · 12-06-2004, 06:37 PM

I am using Mass Air.
I elminated everything I listed in my first post. I had a 305 TPI so I ditched the 19lb injectors and got larger ones.

12-03-2004, 07:01 PM	#1
Deuce Registered User Join Date: Apr 2004 Location: Calgary, Alberta,Canada Posts: 1,595	TPI Conversion Guys Out There......Question. Can anybody tell me what I need to keep out of a factory 87 IROC harness to make the engine in my 68 work?? I'm in the process of pulling the motor/trans out of the car and there are a ton"o"wires!! What can I eliminate?? Thanks in advance!! __________________ I know what your thinking.......I have ESPN. Sometimes it's easier to do things the hard way. Fesler Built 1968 Chevy C10....Must resist the urge to mess with it!!

12-03-2004, 07:22 PM	#2
71swb4x4 Senior Member Join Date: Nov 2003 Location: Brookings, SD Posts: 10,497	I would recommend not eliminating anything until you get the whole thing out. After that you can eliminate the wipers, and air conditioning. You can eliminate the following if you aren't using them: electric fans, EGR, charcoal canister, and AIR pump. I am sure I am forgetting a few things too. __________________ Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs.

12-03-2004, 08:29 PM	#4
CHEVYE my gas saver Join Date: Sep 2003 Location: Clarksville, TN Posts: 2,046	yeah make sure and pull it all, dist, wires, complete harness, ecm under pass side dash, air intake duct prior to engine. make sure and get all sensors too and i would even snag the press regulator and fuel pump. it stinks missing anything and hunting it down. __________________ 85' SWB, 4.3/TH350, getting ready for paint 84`SWB, 462ci./TH400, cowl hood, 15" billet spec., flows, blazer buckets/console, flat black 71`SWB, project ebay feedback

12-03-2004, 11:28 PM	#5
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,746	its not hard to get all of the wireing out (I would know, I have pulled 2, and taken a 3rd one partway apart) just start at the computer, and follow it around to the bulkhead connector on the other side. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

12-04-2004, 01:50 AM	#6
Deuce Registered User Join Date: Apr 2004 Location: Calgary, Alberta,Canada Posts: 1,595	Can a mod move this to the messege board please. Sorry for posting in the wrong section...............I was in a hurry to leave work!!! __________________ I know what your thinking.......I have ESPN. Sometimes it's easier to do things the hard way. Fesler Built 1968 Chevy C10....Must resist the urge to mess with it!!

12-04-2004, 02:10 AM	#7
gonebad2 Merciless Butcher Join Date: Oct 2003 Location: CC Nevada Posts: 1,447	I parted a 99 Camaro( LS-1 Automatic) and was totally amazed at the amount of wiring that was in that car. I cut no wires and carefully removed everything from the taillights to the headlights. I even left everything just as it was connected at the factory. If a sheetmetal panel was in the way, I cut it or split it just to keep the entire harness intact. This was complete overkill and a major pain. Most of the wiring was not needed for a conversion and was later tossed. The pile of wiring was actually taller than the engine when it was piled next to it. __________________ Your Bought And Sold....I Got Your Soul!

12-05-2004, 02:50 PM	#8
Deuce Registered User Join Date: Apr 2004 Location: Calgary, Alberta,Canada Posts: 1,595	Anybody try using the electric fans and rad from the camaro also?? __________________ I know what your thinking.......I have ESPN. Sometimes it's easier to do things the hard way. Fesler Built 1968 Chevy C10....Must resist the urge to mess with it!!

12-06-2004, 02:14 PM	#9
71swb4x4 Senior Member Join Date: Nov 2003 Location: Brookings, SD Posts: 10,497	Deuce I am not using the charcoal canister or EGR on mine. I did have the chip reburned to compensate for the EGR removal. __________________ Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs.

12-06-2004, 06:37 PM	#11
71swb4x4 Senior Member Join Date: Nov 2003 Location: Brookings, SD Posts: 10,497	I am using Mass Air. I elminated everything I listed in my first post. I had a 305 TPI so I ditched the 19lb injectors and got larger ones. __________________ Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs.



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