Thinking out Transmission
11-30-2013, 02:29 PM
#1
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Join Date: Mar 2011
Location: South of Atlanta GA
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Thinking out Transmission Hello,
my car (see signature if its updated) is an 02 Trans Am Firehawk, 4L60E trans. had it dyno tuned to 330 RWHP/350 FTLBS TQ., only mods are headers, and the SLP dual dual cat back.
my next step to do some light mods, is to do a medium stall torque converter while still maintaining lockup, and street manners. it is a 100% street car. in one year, has made two 1/4 mile passess. my biggest complaint about the car is the mushy feeling automatic. i love the firm grippy feeling of an M6 but that isn't an option on this car. i intend on doing:
Stall converter (Brand ? stall range? Diameter?)
TCI shift kit, Vette servos, the whole 9 yards.
while the transmission is out... the car has 84k miles on it, i am thinking it might be time to freshen things up with some more performance oriented parts internally, just to handle the motor better (stock 60's blow up to often as it is behind stock motors).
using this thought process, what can you offer as suggestions. Thanks!
my car (see signature if its updated) is an 02 Trans Am Firehawk, 4L60E trans. had it dyno tuned to 330 RWHP/350 FTLBS TQ., only mods are headers, and the SLP dual dual cat back.
my next step to do some light mods, is to do a medium stall torque converter while still maintaining lockup, and street manners. it is a 100% street car. in one year, has made two 1/4 mile passess. my biggest complaint about the car is the mushy feeling automatic. i love the firm grippy feeling of an M6 but that isn't an option on this car. i intend on doing:
Stall converter (Brand ? stall range? Diameter?)
TCI shift kit, Vette servos, the whole 9 yards.
while the transmission is out... the car has 84k miles on it, i am thinking it might be time to freshen things up with some more performance oriented parts internally, just to handle the motor better (stock 60's blow up to often as it is behind stock motors).
using this thought process, what can you offer as suggestions. Thanks!
11-30-2013, 11:34 PM
#2
As for converters, you'll get a million and one opinions as everyone has their own favorites. A consensus is to go no lower than 3000 stall. The Yank SS3600 is the most popular converter on this board because it hits hard while maintaining excellent street manners.
Transgo HD-2 shift kit is the one to get. Do a search on "mrvedit" posts for some of the nice pieces that Sonnax has come out with that'll complement the Transgo shift kit. Your tranny came stock with the Corvette 2nd gear servo.
Tuning is really important to getting these transmissions performing well - adjusting shift points, taking out torque management, speeding up shift times and more.
Transgo HD-2 shift kit is the one to get. Do a search on "mrvedit" posts for some of the nice pieces that Sonnax has come out with that'll complement the Transgo shift kit. Your tranny came stock with the Corvette 2nd gear servo.
Tuning is really important to getting these transmissions performing well - adjusting shift points, taking out torque management, speeding up shift times and more.
