2000 TA owner

iTrader: (1)

2000 ta car ran 13.2 before yank 3600 install now runs 13.50s I think I have the trans right torq mang removed tcc lockup set drives nicely on the street but at the track just doesnt seem to pull. When they installed the converter is there any fuel wiring they would of had to remove that may not have beem installed right giving me some fuel pressure drop not good at electrical stuff so what would I be paying to have that checked reason Im concerned with this is my clock in radio goes dim also I have 56 lbs fuel pressure at idle and have replaced the fuel filter(ac delco)any advice would be appreciated

RPM WS6

iTrader: (3)

What are your 60-foots and trap speeds on the 13.2 "before" run and the 13.5 "after" run?

2000 TA owner

iTrader: (1)

13.2s were 2.0 105 now 13.5 1.8s 98 just feels flat at the top I have two logs just dont know how to post them the one run the o2s were 830 to850 the next run was 25ish to 50ish

RPM WS6

iTrader: (3)

While it's not unheard of to lose a bit of trap speed with a higher stall, that 7mph loss is excessive and indicates some significant power loss. Those llatter O2 values, if correct, sound dangerously lean.

There is obviously some sort of fuel delivery issue happening here.

2000 TA owner

iTrader: (1)

yea thats why Im wondering about a low voltage issue or pump

2000 TA owner

iTrader: (1)

just looking over my tune and some bin files on hp and noticed that everyone with a converter under engine torq mang has the max torq set at 639/640 while mine is 350 and it mentions things about voltage drop to the fuel pump could that be my problem being the new converter is appling alot more torq

Majestic9C1

iTrader: (19)

are you tuning this yourself or having someone else tune it?

garygnu

how much fuel did you have in the tank for both runs ?with the bigger stall you might have more fuel moving around ,uncovering the fuel pump pick up .scan you fuel injector ,did you retune shift points or any thing for the convertor swap ?any engine codes ?

2000 TA owner

iTrader: (1)

no codes yes learning to tune myself I have lockups off in everything but OD duty cycle at 90 and 80 working on the shift points my one question is the max torq setting all tunes I look at have it maxed out mine was at 350 what would that do

RevGTO

iTrader: (12)

My bet is that your fuel pump is failing and the timing with the converter install is purely coincidental, since nothing about the install would affect fuel delivery.

This is what was at fault when my car dropped .7 and 7mph at the track. I had very similar O2 readings to yours. Fuel pressure at idle was normal, but fell off drastically above 4000 rpm.

Put it on a dyno to prove what was happening. Replaced the pump and all is good.

2000 TA owner

iTrader: (1)

did a no maf log today and my afr was at commanded 11.3 at wot 1.300 in pe and at WOT it was exactly that I was 13.6/13.8 with the maf hooked up maybe dirty maf or just needs to be adjusted ?? what should I do how do you clean the maf just remove it and spray maf cleaner.can I run the car with this tune to see what it does understanding this is in sd mode correct just have to watch the afr am I right with this assumption

RevGTO

iTrader: (12)

Yes, just spray it with cleaner. It has been known for MAF's to go bad; that's a possibility too if it continues to throw off your AFR after cleaning and reinstallation.