32 years ago I got into Buicks. I stuck with them because I'm too stubborn to quit. Now I know that was just preparation for owning a turbo gn.
On my last trip to the track the O2's were tanking down to the 730's and 740's. This is with 33# injectors, new fuel filter, adj fpr set to 45 and a hot wired Walbro 307. With a car that will barely crack the 8's in the 1/8 I should have plenty of fuel and not have to be cranking the translator plus up 8% to a duty cycle of 130%.
Thinking the pump may be getting tired I replaced it with a new Red's XP+. Took it to the track last night. Nice and cold but crappy traction. Launching at 2" vacuum with translator set straight up on fuel the O2's start at 840 are at 800 at the top of 1st gear and down to 750 by the top of 2nd. This was with a duty cycle of 99.6.
Very next run they're at 780 at the top of 1st and 750 at the top of second. Didn't get any better after that.
Adding fuel with the translator+ helped the O2's a bit for a while but ultimately they continued to decline as the temp got colder. Duty cycle peaked at about 120% and the car just got slower.
Next item on the list is a new fpr but I've not heard much about the symptoms when they go bad.
Any ideas are appreciated.
On my last trip to the track the O2's were tanking down to the 730's and 740's. This is with 33# injectors, new fuel filter, adj fpr set to 45 and a hot wired Walbro 307. With a car that will barely crack the 8's in the 1/8 I should have plenty of fuel and not have to be cranking the translator plus up 8% to a duty cycle of 130%.
Thinking the pump may be getting tired I replaced it with a new Red's XP+. Took it to the track last night. Nice and cold but crappy traction. Launching at 2" vacuum with translator set straight up on fuel the O2's start at 840 are at 800 at the top of 1st gear and down to 750 by the top of 2nd. This was with a duty cycle of 99.6.
Very next run they're at 780 at the top of 1st and 750 at the top of second. Didn't get any better after that.
Adding fuel with the translator+ helped the O2's a bit for a while but ultimately they continued to decline as the temp got colder. Duty cycle peaked at about 120% and the car just got slower.
Next item on the list is a new fpr but I've not heard much about the symptoms when they go bad.
Any ideas are appreciated.