I have a 91 formula with the L98 and a shift kit in the trans. When the car is cool the trans shifts very strong and puts the car sideways all the time. As it warms up, the shift gets softer and softer. To the point where it will still shift quick but will not break the tires loose. Trans just feels much more sluggish. I have started to notice this as the temps here in NYC have gone into the 70's and 80's. Any ideas on how to remedy this? Also, does my car have a trans cooler from the factory? Thanks

 

most likely your ca rhas a trans cooler, look on the pass. side of the radiator and you should see 2 fuel line like lines running into the radiator, 1 on top = and 1 on bottom. how many miles are on the trnas? mine used to do the same thing to me, but it would still break em' loose after it warmed up, just not as wild.

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Brandon
"ScreaminDeamin 360"
350 60 over, TRW forged 9.83:1 pistons,Hooker Comp headers, crane cam 216/228 .484/.512, crane 1.6 RR's, ported plenum, home made ram air, 24lb SVO injectors, crane AFPR, all going through 3 inch mandrel pipe and a flowmaster.
New project-89 IROC-Jamex Springs...and thats just about it till summer!
Soon- 6 speed, Pro 5.0 shifter and 4.10's
http://users.argolink.net/bvana

http://ScreaminDeamin.cz28.com

 

Time for a fluid and filter change.

 

fluid and filter are new. Trans has 40k miles.

 

Buy a trans cooler! The radiator can only cool so much. I have the B&M cooler. A step down from their racing cooler. It helped out alot! Its about $45. Heat kills your tranny!!

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89 Formula 305 TBI
160* stat, 200* fan switch, K&N, Headers, 3in Flowmaster (hollow cat) back, pullies, 1.6 full roller rockers, B&M trans cooler, home-made ram-air
3.73 Richmond gears and SLP Zexel Torsen Posi (MAY 01), Wonder Bar

 

Transmissions tend to shift a little more harshly when the fluid is cold because it is a little thicker. As the fluid warms up it becomes thinner and the shifts soften a little. This is especially noticeable in the winter. I wouldn't worry about it.

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82 z28 350cid, vortec heads, comp 262h cam, Holley 600cfm carb, 2in twice pipes, MSD ignition, turbo 350 trans, 3.73 posi, manly b&m megashifter