@ E-Town today and I wanted to burn my car after the first Run

[TURBOPOWERED68]

@ E-Town today and I wanted to burn my car after the first Run
The car has been running great for a while now.
I have done a bunch of WOT runs and it always felt great.

So I drive about 60 miles to E-Town (it also felt great on the way to the track)
I get to track and on first run I wanted to pull over in the middle of track and set the car on FIRE.
This was my first run at the track on this car
SO I launched the car at Zero PSI because I figured that anything more and I would just spin. (street tires and an open rear) the car pulled hard out of the hole then just went completely blank at about 30 or 40 feet from the starting line, so I lifted then got back on it and finished the run.. My O2’s got as high as 871 this was the out come
R/T------745
60’-------2.485
330------8.373
1/8------12.169
MPH------66.95
1000-----15.333
¼--------17.990
MPH------85.48

__________________________________________________ ____________________
Second Run
So I drive back to the lane and pulled out some fuel via Chip settings.
I pulled -3.9%
And the rest of the SM readings go like this for the second run look like this.
Air Flow 05
L8-------38-41
Bat------12.7
Int ------128
BL-------131
CLT-----151
ATS-----119
R---------775
TPS------44
ISC-------38-40
CC--------172
This was all done before the second run. Anyway this was the outcome. A much better run but I am still extremely disappointed.
R/T-------737
60’-------2.349
330-------6.410
1/8--------9.806
MPH-----72.34
1000-----12.760
¼---------15.255
MPH-----91.13
__________________________________________________ _________________
Final run
This was all done before the final run.
So I drive back to the lane and pulled out some more fuel via Chip settings.
I pulled – a total of -6.3 (including the first
And the rest of the SM readings go like this.
AF------ 05
L8-------35-37
Bat------12.8
Int ------128
BL-------131
CLT-----153
ATS-----115
R---------725-750
TPS------44
ISC-------36
CC--------123
So now I am heading toward the tree for the last time of the day
I do my first burnout of the day (it’s the last run I might as well go all out) So I line up at the tree build 5 PSI of boost then let it rip and the car dies again so I let of then got back into it. This was the out come of the last run.

R/T-------590
60’--------2.430
330-------7.857
1/8--------11.540
MPH-----68.61
1000-----14.623
¼---------17.196
MPH-----88.12

[turbojimmy]

What happens when it dies? Does it sputter at all? Is it electrical or fuel? You need some sort of data logger to see what's going on. It sounds like it's running out of gas, but if pulling fuel helped then that makes no sense.

Jim

[TURBOPOWERED68]

Originally Posted by turbojimmy

What happens when it dies? Does it sputter at all? Is it electrical or fuel? You need some sort of data logger to see what's going on. It sounds like it's running out of gas, but if pulling fuel helped then that makes no sense.

Jim

it was just like this. Got home limping part 2 (the car just turned off) but this time only at WOT and at the track, on the way home i tried braking the car with a bunch of WOT pulls and they felt great and pulled hard all the way to 80 MPH
it feels like if some just turns of the ignition No spitting or sputtering NOTHING at all.
IF i had the money this engine would have been gone last night. but since i don't i have it, i have to now figuire out the @@##$$#problem.
1-17.99
2-15.25
3-17.19
i hate this car. i think i would have felt better if it broke down instead.

[turbojimmy]

Originally Posted by TURBOPOWERED68

it was just like this. Got home limping part 2 (the car just turned off) but this time only at WOT and at the track, on the way home i tried braking the car with a bunch of WOT pulls and they felt great and pulled hard all the way to 80 MPH
it feels like if some just turns of the ignition No spitting or sputtering NOTHING at all.
IF i had the money this engine would have been gone last night. but since i don't i have it, i have to now figuire out the @@##$$#problem.
1-17.99
2-15.25
3-17.19
i hate this car. i think i would have felt better if it broke down instead.

Did you replace the fuel pump like you mentioned in your other post? If not, I'd try that but it doesn't sound like your problem. You'd be getting crazy knock (you do have a knock gauge, right?) if you were WOT and the fuel pump was falling behind.

I've had this problem twice in the past. At WOT it feels like someone turned the key off. Around town it was fine - only under WOT. Falls right on its face. Once it was that the connector to the coil pack/ignition module was loose (forgot to tighten it). The second time it was either the coil pack or the ignition module. I replaced them both at the same time so I can say with any certainty which it was. I'd bet it was the module, though.

Jim

[TURBOPOWERED68]

Originally Posted by turbojimmy

Did you replace the fuel pump like you mentioned in your other post? If not, I'd try that but it doesn't sound like your problem. You'd be getting crazy knock (you do have a knock gauge, right?) if you were WOT and the fuel pump was falling behind.

I've had this problem twice in the past. At WOT it feels like someone turned the key off. Around town it was fine - only under WOT. Falls right on its face. Once it was that the connector to the coil pack/ignition module was loose (forgot to tighten it). The second time it was either the coil pack or the ignition module. I replaced them both at the same time so I can say with any certainty which it was. I'd bet it was the module, though.

Jim

didn't replace the pump because like some of these guys Premature Walbro Failure I am waiting for something better to come along.
the part that really burns me up is that on the way there and on the way back i got on it, pedal through the floor and it ran great.
and only when i tried to leave with some boost it died.

[TURBOPOWERED68]

I was the second slowest vehicle last night
The slowest vehicle was a tractor (the front half of an 18 wheeler)

[TURBOPOWERED68]

this was the last run

YouTube Video

[Black Power]

Wow it really fell on its face...you need a powerlogger my friend

[TURBOPOWERED68]

Originally Posted by Black Power

Wow it really fell on its face...you need a powerlogger my friend

Yeaup going to WTB section later on.

I am just trying to figure my next step (before I buy a PL) if there is one.

[turbojimmy]

Originally Posted by TURBOPOWERED68

didn't replace the pump because like some of these guys Premature Walbro Failure I am waiting for something better to come along.
the part that really burns me up is that on the way there and on the way back i got on it, pedal through the floor and it ran great.
and only when i tried to leave with some boost it died.

I doubt it's the pump anyway. It seems electrical. I'd swap out the coil pack and module for a known good one.

Jim

[TURBOPOWERED68]

Originally Posted by turbojimmy

I doubt it's the pump anyway. It seems electrical. I'd swap out the coil pack and module for a known good one.

Jim

i am going to pull the one off of my 87T and see what happens.

[TURBOPOWERED68]

BTW I had about 2-3 gallons of 93 in the tank then I added 5 gallons of C16.
Just trying to give as much info as possible.

[Black Power]

How much boost were you running that pass?

[TURBOPOWERED68]

Originally Posted by Black Power

How much boost were you running that pass?

15 or so

[JOHNDEEREGN]

Keep diggin man, it really did fall off hard, and against rice to boot. Sorry

[bison]

Insoect the crank sensor. If its rubbing then it may cut out and restart like it seems to be doing.