Newb questions on 255 install from old fart

[PJGross]

Wiring to/around tank is pretty good. Car has sat in garage now most of its life. /ubbthreads/images/graemlins/smile.gif

However, I just ordered a relay and will rewire the fuel pump harness while everything is apart. I will just go into the car side wire harness, I am not going to re-wire all the way to the pump. This should remove any voltage drop from front to back of the car at least. I also made a mount plate for the new redtop optima and will have a 150A breaker at the battery, too.

Not sure where I'm putting the relay yet. I did order one that has a waterproof plug as part of it with the wire leads coming off. This should help keep it clean.


Getting this thing up and running is becoming a bigger project than I initially thought it would be.

There really isn't much left that is not new/refreshed after this so I should be able to move on to tuning fairly quick after this week.


-PJ

 

[PJGross]

Old fuel pump was not a 190 btw. It actually was a 150lph pump. Just searched by the part # on it.

-PJ

 

[slugsgomoo]

late to the party, but the rewire should actually quiet a 255 down a bit in my experience.

Aside from that I also had a supra pump die out of nowhere (I replaced it with a wally 450).

 

[PJGross]

I bought a waterproof relay, completed the fuel tank POR treatment, rewired the relay to the harness, completed a mount plate to the trunk, secured the red top optima, added a 150A breaker, put all back together and the pump is so quiet you can barely hear it.

Now it idles great prior to driving, after driving for a while, clutch in to a stop it won’t hold rpm and stalls. Also idle searches a bit unless I tap the gas and get it to settle. No crazy up and downs though.

O2s don’t appear to cycle at idle, gauge just sits lean.

So, mechanically all set. Now I have to tune.

I will start a thread in general for tuning.

Thanks for help on the pump/tank issue. This is now properly fixed!
PJ