Recent content by Jus10dun

okay so we need the 87- early 89 harness. i have a 12 pin. the 89 later - 92 have 16 pins.

what year harness did you get 89nasupra?

so do you think this is a 89 harness?

sounds like a pain in the ass. where did you look to find out what the wires went to?

thats what i was figuring. Is there a harness that fits right in without alot of splicing? The only problem i saw was that the wire count and colors are completly different.

i took more pics of the other connectors but they werent visable. and pretty useless.

I went through to see if i was gettin gpower to the ecu or anthing for that matter. And i am not. THe main power supply on the harness and on the body are different. So i looked up the wires and wire the two connections togetther using red butt connectors and the original connector off the...

thanks!!

okay ill try that today in a little. The wiring harness is missing connectors by the collant spout and an extra one by the TB. Ill get pics too. all the plugs are grey. one white. There is a big on that i remember that is very close to the one on the harness but just barely...

I am doing a NA-T swap it has a Non turbo motor rebuilt with turbo electronics. Its a 1989 NA Auto, Converted to a 1990 ecu/ wiring harness. Tranny is a w58. I got everything in the car is all put together and i go to fire it up and it isnt getting fuel... Well i dont hear the fuel pump...

You have a 5.3 right? I am looking to swap in the LM7 peferably the lm4 because it is aluminum but i think it is going to be harder to find. But i was just wondering it you had the aluminim or cast iron block and if it was really that big of a change in weight and or handling? Also if you had...

Also what did you end up doing to get you speedo to work?

any updates i have beening dreaming of this build ever since my motor got rod knock the first time. I have tried to think of a cheaper alternative to get this kind of power but i have finally relized that a GM motor is the only way to go. My buddy and me are both planning on getting 5.3 LM7s...

Thanks that helps alot.

Like you guys already know the motoy is a LM7 not a LS1 or even LSX. LSX is very confusing to chevy guys that alrealf know that there is a aftermaket block out there called the LSX do to the fact the you can put any LS head with any displacment combination and have a very strong block to hold...