The trigger has been pulled.

[don_w]

If you have 39# injectors, you should be seeing about 47-49psi at WOT (add your boost to 39... e.g.., 39 + 10psi boost = 49psi fuel press). At idle it should be around 30psi.

 

[Charlie Sheen]

So why does this scare me?

Dead, warm idle, 70MPH cruise and barely tipping in...

View attachment 3488 View attachment 3489 View attachment 3490 View attachment 3491

 

[fordracing]

My Fuel pressure reads about 10lbs less then my areoforce gauges that run off the ODB port.

I would be scared to see the boost gauge going that high though on a stock short block. Have you have it dyno'ed yet?

I'm very jealous I'm STILL waiting on my Whipple to get here....

 

[don_w]

First pic looks OK... something's not right with the other three.

Did you install 39# injectors?

And 13psi boost??? wowzers...

 

[cekim]

So why does this scare me?

Dead, warm idle, 70MPH cruise and barely tipping in...

So, what does ODBII say and where is your pressure tap?

 

[Charlie Sheen]

...I would be scared to see the boost gauge going that high though on a stock short block. Have you have it dyno'ed yet?...

That would account for the stain in my drawers. It actually pegged 15psi at one point but I was too slow with the camera. Not sure if I should trust the gauge or not, this is on the 3.625" pulley, not the 3.375" that came with the blower. I'm slated to get the car dynoed at the Whipple factory 2nd Saturday of next month.

...Did you install 39# injectors?...

Yes. If I turn on the ignition, but do not start the car, the pressure jumps up to 40psi, then drops to 0 within about 20 seconds.

 

[cekim]

Yes. If I turn on the ignition, but do not start the car, the pressure jumps up to 40psi, then drops to 0 within about 20 seconds.

ewww.... That's not good, it should hold pressure even if the car is off (thus the big mess you make when you disconnect the fuel line and the car hasn't been sitting for days...

Any puddles of fuel under the car?

 

[Charlie Sheen]

So, what does ODBII say and where is your pressure tap?

OBDII reads 39/40psi, if I give it a little throttle, it jumps to 45ish. The other fuel pressure sender is located at the rear of the passenger side fuel rail.

ewww.... That's not good, it should hold pressure even if the car is off (thus the big mess you make when you disconnect the fuel line and the car hasn't been sitting for days...

Any puddles of fuel under the car?

No puddles or scent of fuel. Meanwhile, I do park the car away from the garage/house. After running the engine, I can shut it off and I'll hear a hiss coming from the fuel pump area (inside the tank). Looks like I get to re-visit my old friend/nemesis after all...

 

[fordracing]

Yeah that dosen't sound right...

Bet your not looking forward to going there again..


15 psi.....my shorts would need to be changed if I saw that.
Something sounds off with your boost gauge too... that other pullie is an 8lb one I bought the same thing.

 

[Charlie Sheen]

...15 psi.....my shorts would need to be changed if I saw that.
Something sounds off with your boost gauge too... that other pullie is an 8lb one I bought the same thing.

I went and bought a cheapo mechanical boost gauge to see if there was a difference. It reads the same (actually higher, 17psi @ tip-in, 50mph) as the AutoMeter 3376.

Pulling the fuel pump back out this weekend. Oh joy...

FYI, I'm reading boost pressures before the intercooler...

 

[MLC40]

I went and bought a cheapo mechanical boost gauge to see if there was a difference. It reads the same (actually higher, 17psi @ tip-in, 50mph) as the AutoMeter 3376.

Pulling the fuel pump back out this weekend. Oh joy...

FYI, I'm reading boost pressures before the intercooler...

Something is very wrong, you should not see that much boost with the size pulley you are running. Do you have CATs? I can not see how a fuel pressure issues can increase boost so I think you have two problems.

 

[Charlie Sheen]

...I think you have two problems.

Same here. Someone mentioned I may have a bad injector that is hanging open. Since pulling the plugs and injectors are a hell of alot easier than messing with the fuel pump I'm going to start there.

 

[W1ldcat]

SO, what the heck is going on???

 

[Charlie Sheen]

Pulled the plugs, they all looked like new so I didn't even bother with the injectors. Probably going to make some time for the car this afternoon.

 

[Charlie Sheen]

Replaced fuel pump, warp drive is back online.

View attachment 3529

Time for some more video before I blow it up.

 

[don_w]

So it was a bad pump???

 

[Charlie Sheen]

I fucked up one of the clear plastic line/hose thingies. It must have been during that moment when everything went red. My bad - I own it. Took Ted for a ride yesterday to show him what an 11 second car feels like. He wet himself.

 

[fordracing]

Glad to hear everything is better...

 

[ZmanM3]

Glad to hear it. Now Ted needs to up date his thread.

 

[Charlie Sheen]

Glad to hear it. Now Ted needs to up date his thread.

The subject of "Mustangs" kinda pisses him off right now.