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Old 09-08-2009, 09:39 PM   #47
mcbassin
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Join Date: Jul 2009
Location: Central Oklahoma
Posts: 10,108
Re: 5.7 TBI in an 86????? Anyone done this swap??

Thanks RF,
Your right I wasn't getting power to the injectors but I think I found the reason. One red wire from the donor I suspected needed hooked up while the key is on was unhooked. When I put power to it the injectors started squirting. It now kinda runs under it's own power (still has to be wired permanantly).

I was trying to figure the fuel lines and I may be wrong but it sure looks like the original fuel line is 3/8" The return looks like 1/4". I guess I still need to run a 5/16 return? I picked some 3/8 steel line from Autozone and it is the same dia. as the original. Also there was a lot of discussion about the use of dual tanks. I don't understand why we can't just tie into the main line and use one pump? I guess if your driving down the road under a heavy load it may stumble the engine? Maybe a little? If it's unsafe then I may need to consider the small pump to move the fuel from one tank to the other.

Things to do still:
Finish the wiring
Install the new fuel pump
fix all the vacuum leaks
change the starter? it sounds like the gear is hanging on the flexplate
install speedo gear and vss
make it driveable

Last edited by mcbassin; 09-08-2009 at 09:41 PM.
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