Auto Racing: rear ends and torque, 1985 toyota cressida, toyota cressida
Questionhello,
i have a 1985 toyota cressida which i run autocross with. the car could use more torque and i'm wondering if i mounted a supra diff. or the diff from a celica gt if that would help. in first gear it does fine but seems to loose it in second gear
AnswerHi Omar:
Your problem is typical of nearly all production based sedans. The 'step' between first and second gears is too broad. The only solution is to find a transmission with closer ratios. I would think that some of your Toyota pals could steer you in the right direction. It may be that a trans from a Supra of similar year would be a help.
The other thing you could consider is intalling a really low ratio rear end and starting in second. This of course would result in a lot more fuel consumption while street driving. ( I once had a Pontiac Firebird that got 7 MPG, but BOY did it accelerate ! ) .
That's about all I can offer on the subject, until you are ready to invest in a true competition transmission. The good ones start at around $5000.00
Good luck with the auto crossing ! It's a good place to start a long racing career !
Dan Liddy
Sarasota, Florida