seala8

iTrader: (1)

background on car-
06 gto- twin turbo, 317 heads, cam- was making 550whp with droppin fuel psi
fuel- 255lph walbro, 60lb mototron injectors, 8.1L bucket, Meth

Well 2 weeks ago I brought the car to the dyno for a SD tune. Problem was that at about 5000rpm the FP was dropping down to about 30psi.
0-2k 60psi
2-4500k 40-50psi
4500-redline- ~30psi of pressure

So i ugraded to the 8.1L bucket and bought a new pump just in case. Just went back today to check it out and still same problem, fuel psi is still dropping. Now what should i do? BAP? twin walbro's? Im clueless now.

Nasty N8

iTrader: (33)

550 is about max for the single Walbro pump. you are running out of pump. You need 2 pumps to fuel that setup. i have a couple kits available give me a call I can help you get the right one.

Nate

seala8

iTrader: (1)

anyone else have an ideas?

KrisXpc

iTrader: (13)

I have an idea!


Re read Nasty's post. It's the truth no matter how much you hope its not.

Lonnies Performance

iTrader: (16)

I've been building the dual intank pump kits for these vehicles for approx 3 years with excellent results. Power levels have been supported at over 1000rwhp. Let me know if I can help.

oldstv

I have the same problem only I have twins in my tank. I did check the plug at the tank to find I have one prong that was not making good conection. The prong has been getting hot because the plug is discolored. I just found this so just looking into the problem.