Car Lost ~50hp, Suggestions Welcome

[Swarzkopf1]

Thanks for the feedback.

It's a 95 Mustang GT with an AODE. Stock motor with a Zex kit, 4.10s, drag radials, 190lph fuel pump, Aeromotive regulator, and other bolt-ons. As I said earlier, it went 13.343 a little over a month ago.

Were you using the nitrous then? If so, there could be a number of issues (low bottle temp, fuel and/or nitrous line or solenoid leak...)

I was using the nitrous. I tested the nitrous system this morning. The only leak was where the injection nozzle meets the intake tube. It's a very slight leak. I'll be solving this with some teflon tape. The bottle was at 1000PSI. It's a dry system that increases fuel pressure, so there is no fuel solenoid as in a conventional wet kit.

I don't believe this is a nitrous problem.

Where is your nozzel mounted? It sounds like you could me letting in unmetered air through that leak. This means it will run leaner than normal, which can be bad, especially when using nitrous.

Being that I was running 125 shot jets, had I gone lean my problems would probably be bigger than this.

Get rid of that 160 thermostat, there is absolutely no need for it. Put a 180 in it.

I'd always thought that the cooler the better. What would be better about a 180* T-stat?

How did you 60ft's compare to the previous runs?

About .2 slower. They were not traction limited, I run 275 series BFG drag radials. My previous best had been 1.8, yesterday my best was 2.0 with no tire spinning. I believe I just lacked the power to do any better.