i just finished up installing the stock torque converter back into my 94 lt4 camaro it had a tci 3500 stall wich i swapped out for stock 1800. the reason i did this was beacuase the 3500 was giving me an average 6-7 mpg so anyways the car just feel slow now i cant even get it to break the tires loose my truck feels like it has better off the line acceleration. the previous owner told me that he had the transmission reprogrammed for the 3500 would this be causing it to be so sloow.

 

No, its because you put an 1800 stall in it. If you were getting 6-7mpg you either had your foot in it all the time or there was some other problem.

 

no it was fast before it could almost keep up with a 11 sec grand national but right now my i think my truck can beat it wtf is going on.

 

as for other problems there was no check engine light or any kind of codes it was running great just giving me really bad gas milage.

 

are you going to sell the TCI if so im interested. pm me

 

if i cant get this sorted out i will be reinstalling the tci but right now im trying to get this to work ill let you know thou.

 

They told you in the other thread that swapping to the 1800 wouldn't help your gas mileage issue at all. Why did you choose to do it anyway?

 

i got tunercat to work does anybody know the settings for a stock transmission.

this is what i have now.

tcc load lower limit vs mph (low gears) tps
10 14.8
15 14.8
20 14.8
25 19.9
30 26.2
35 32.0
40 37.1
45 44.9
50 50.0
55 50.0
60 50.0

tcc load lower limit vs mph (low gears) tps
10 0.0
15 0.0
20 5.1
25 10.2
30 14.1
35 19.1
40 23.0
45 28.1
50 32.0
55 32.0
60 32.0

tcc load upper limit vs mph (high gears) tps

10 14.8
15 14.8
20 14.8
25 19.9
30 26.2
35 32.0
40 37.1
45 44.9
50 50.0
55 50.0
60 50.0

tcc load upper limit vs mph (high gears) tps

10 10.2
15 10.2
20 10.2
25 10.2
30 14.1
35 19.1
40 23.0
45 28.1
50 32.0
55 32.0
60 32.0

 

shift light enable vs speed /rpm ratio limits

1st 1600 rpm
2nd 1600 rpm
3rd 6350 rpm
4th 6350 rpm

speed /rpm ratio limits


limit
upper lower
1st 255 110
2nd 80 55
3rd 45 34
4th 35 23

 

swapping out a 3500 stall for a stocker would not change your mpg more than 2-3 mpg at most... you are going about your problem all wrong. There is something else going on for you to be getting that low of gas mileage. What other mods do you have? If you are basically stock with an aftermarket converter... there is no way that your car is running right if it is getting that bad of gas mileage.

 

my car is not stock it has a

lt4 intake
lt4 heads
lt4 hot cam
gmpp 1.6 rr
ported throttle body
slp cold air intake
tsp loud mouth exhaust
off road y pipe
edlebrock shorty headers
msd wires

 

help me my other car kills even more gas.

 

what rear gears? was the convertor slipping?
my milage went to crap on a heads/cam car from a tune with 3200 stall to a 4000 stall that was slipping -
a good 4000 stall cured everything.
convertors can be tricky
the stock one has no business behind your motor - way inefficient and not letting it wind up into the power band
put a 3200-3400 yank in there

 

it has 323 gears i really like how it drives right now after driving it a bit it feels like a normal car with power but i think i will be going back to some kind of stall once i get my diesel jette and ill leave the camaro for the weekend.

 

its getting better gas milage but not as fast as before.