bill grayt
New Member
- Joined
- Dec 28, 2010
- Messages
- 15
Have an 87 Ttype.
Mods include
GN1 heads
43lb injectors
front mount ic
218/218 flat tappet cam
62mm turbo
hotwired 340
alky
Ported stock tb and plenum
Built tranny with a 3200 stall
Tonight, I'm trying to tune it a bit better, because of a rough idle...has a small hiccup or miss.
Have a monitor 4000
Have TPS set at .44 closed 4.50 wot
FP is at 42 line off
At idle, warm in park
BLM reads 128
When I start the car IAC is at 140, but within 4 seconds drops to 000.
02 jumps all over between .08-.81, and correspondingly the red fuel rich/lean lights on the monitor jump constantly from rich to lean.
I set the monitor to record, and took it for a drive, to try and find out what's going on.
Got on it hard, and it power surged noticabley, then at about 16lbs boost it backfired fairly loud and let out a puff of black smoke.
The knock gauge went into the third yellow right before the backfire.
Obviously I drove it home and parked it....don't want to damage it.
I'm lost.
Any advise guys.
Keep in mind, I'm new to these cars, but very much want to learn.
Thanks in advance
Bill
Mods include
GN1 heads
43lb injectors
front mount ic
218/218 flat tappet cam
62mm turbo
hotwired 340
alky
Ported stock tb and plenum
Built tranny with a 3200 stall
Tonight, I'm trying to tune it a bit better, because of a rough idle...has a small hiccup or miss.
Have a monitor 4000
Have TPS set at .44 closed 4.50 wot
FP is at 42 line off
At idle, warm in park
BLM reads 128
When I start the car IAC is at 140, but within 4 seconds drops to 000.
02 jumps all over between .08-.81, and correspondingly the red fuel rich/lean lights on the monitor jump constantly from rich to lean.
I set the monitor to record, and took it for a drive, to try and find out what's going on.
Got on it hard, and it power surged noticabley, then at about 16lbs boost it backfired fairly loud and let out a puff of black smoke.
The knock gauge went into the third yellow right before the backfire.
Obviously I drove it home and parked it....don't want to damage it.
I'm lost.
Any advise guys.
Keep in mind, I'm new to these cars, but very much want to learn.
Thanks in advance
Bill