Well to add to the never ending TPI swaps. I have a built 350 but to factory specs. I am running a 80-85 2bolt block with a Performer rpm intake and a 750 holley on my 85. NOW to the normal quesitions. I have a 85 Iroc-Z28 i think its a 305 parts car and i want to swap TPI to my car. But i want to do the painless wiring harness and want to know what all i need to use the harness and were can i get one.

I tried to do a search and i kept finding TPI to Carb not the other way. Im going to keep the 305 injectors and all until get my SLP runners then ill swap to a 40 LBS injectors. Any info or can anyone forward me to a better thread. I DO WANT TO GO THE EASY WAY. not the factory confusing harness

THANKS FOR THE HELP

 

You will have to install a fuel pump in the tank. If you have a parts car with this, great!! Not sure if you have to swap fuel lines, but I am guessing yes.

Your getting a painless harness, it should come with directions. To me, installing a factory harness would be easier, but w/e.

You can atleast run/start it on 305 injectors. But sure dont go hot-rod it. Then 40lbs will be alot. 350 comes with 22lb IIRC.

 

Well i want a side mounted pump on the firewall i dont want to do the fuel tank pump. but it has steel lines factory just need steel ones from lines to fuel rail.

But i cant seem to find a painless harness online anywere that i can read on.

and i guess i thought wrong on the injectors. I may have to get some then cause my foot is heavy not sure why just the right foot........lol
thanks for info...

 

ok on the fuel pump. But the stock system has a return line. May have to do some fudging there.

the favored injectors for minor builds seem to be the ford/bosch 24lb blue tops. May look for some of them.

also on the harness. Do you want a MAP system, or MAF system?

 

well crap i dont know. I've done a bit of reading, and since its an 86 model TPI im guessing its MAF. but what ever i got is wat i want to run. I dont want to mess with the sensors and stuff i just want to put SLP runners, the injectors and the pump on it. Drive it for a bit and see if i like it then i'll mod it if i have to.

I haven't found a harness yet that has any info. Im guessing i should pick up a TPI swap book.

Your also saying Ford injectors. Do they fit, or do they need bigger o-rings or whats all the talk.

 

86 is maf, yes. But if you havent got a harness yet, you can go either way. Do you have an ECM yet? That will be what make more of a difference.

ford injectors pop right in like any other injector. Basically plug n play

 

Yep i have the Computer for the 86. But im really sill considering the Painless harnness. so with your your guys help. What sensors do i need that arent on the intake. I got the air cleaner assembly with im guessing has the Air intake sensor, the MAF, and i will need the O2 im sure. what else.

and what ford injectors would be best for a built 350

 

Unless your going to go ***** to the wall. Them 24lb should be fine.

http://www.rceng.com/technical.aspx

So you want to use the 86 ecm. Slap in a new prom and wire it up.


Sensors coming to my mind quickly....
MAF
Knock
O2
TPS
IAC
um.. that one in the dizzy
IAT
ECT
IAC