Mark98SS

iTrader: (1)

Car has the Racetroix plug & play harness, single intank pump & MSD BAP. I installed the BAP about 2 years ago chasing a fuel pressure issue & the BAP didn't seem to make much of a difference. Fast forward to this winter I noticed the 20 amp fuse on the Racetronix harness is blown. Car starts & runs fine, I don't remember ever checking the fuse before so it may have been like this all along. I checked all wires, nothing shorted that I can detect. If I put a new fuse in then it blows as soon as I turn on the ignition. As I said the car runs fine. The only part of the BAP install that I recall being a little murky was which side of the Racetronix plug n play to connect the black & red wires from the BAP. Right now it's got the the red from the BAP connected to the Racetronix plug n play connector the heads to the factory terminal block left rear behind rear seat & the black to the Racetronix PnP connector going to the Racetronix grey (looks like another relay) thing in the back that I mounted next to the afore-mentioned factory terminal block. IS that correct or do I have it backwards?

Mark98SS

iTrader: (1)

TTT, anyone?

Lonnies Performance

iTrader: (16)

I'm not sure if I totally understand how you have it wired, but you need to source the power from the 10ga Racetronix wire (with the fuse) or another battery source. Done properly, it should not work if the fuse is blown. It sounds like you are sourcing your power from the factory wiring.

You should cut the heavy red wire & put the booster inline. The grey wire should only work the pump relay.

Mark98SS

iTrader: (1)

Thanks for the reply, Here's the boiled down version:

It has the Racetronix PnP harness set up correctly & it worked w/o the BAP. Racetronix provides a "pump booster interface connector" in the PnP harness. It's unclear to me which side of the interface the red & black wires to the fuel pump from the BAP are supposed to hook up to. Thanks again.

Mark98SS

iTrader: (1)

Racetronix pic for clarity

Mark98SS

iTrader: (1)

TTT

Lonnies Performance

iTrader: (16)

I'd be glad to help you but I do not have the wiring diagram for the MSD unit.

Post a pic of the MSD wiring setup... I sell Racetronix so I do not need info on it.

Mark98SS

iTrader: (1)

Thanks so much, here's the wiring diagram

Lonnies Performance

iTrader: (16)

Disconnect the BAP connector on the Racetronix harness, the orange MSD wire connects to the part of the harness leading to the relay (red Racetronix wire). The red MSD wire connects to the other half leading to the pump (red Racetronix). The long black MSD ground needs to go to the black wire (ground) leading to the fuel pump.

Mark98SS

iTrader: (1)

Thanks, I'll set it up that way & see what happens, hopefully better FP.
Edit: Do I not need the MSD relay then?

Lonnies Performance

iTrader: (16)

No, the Racetronix relay serves that purpose.

Mark98SS

iTrader: (1)

Thanks, it makes sense now. Since I have the battery in the rear of the car I think I'll move the BAP back there & shorten up the wiring including the 10ga Racetronix wire.

Tirefire

iTrader: (1)

Let me know if you get it sorted out, if not I'll send you some pics of my setup. I have the hot wire and MSD BAP all hooked up.
Just make sure to send me your e-mail.