Is It Normal For Shifting Firmness To Decrease With a 3500 Stall?
Thread Starter
On The Tree
Joined: Jan 2010
Posts: 159
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From: Branford CT
Is It Normal For Shifting Firmness To Decrease With a 3500 Stall? Finally got my stall put in and the shifting firmness between gears does not seem as abrupt as before. I had a Frost tune for my full bolt ons and the car really shifted hard between gears. With the stock stall you would feel the pull and you would feel it disengage really fast and then shift into the next gear. Now after the install when it shifts between gears it is not really felt at all. The best way to discribe it is it feels liek it is slippign before and after the shift. Is this normal or do I just need another tune? Thanks
Thread Starter
On The Tree
Joined: Jan 2010
Posts: 159
Likes: 0
From: Branford CT
Wouldn't that hurt your quarter mile time with the firmness delay? Right now it is not staying stuck in a gear and over 55 miles per-hour it seems to stay locked in. Would a tune correct this?
Also sounds like you need to up the pressure of the tc clutch. Its NOT locking at highway speeds is what you mean....it stays at a higher rev right? That can burn up the trans and tc clutch. You need to install a tcc valve for higher pressure or delete the tcc pwn on the ecu. This will help it lock up on the highway. Also you should install a cooler and trans temp gauge to make sure youre not overheting the trans. Also make sure the trans is tunes for the gears as well so you can have the proper shift and shift timing. A bigger stall might feel softer so dont worry but Id be concerned with shifting and lockup issues. Godd luck.
Thread Starter
On The Tree
Joined: Jan 2010
Posts: 159
Likes: 0
From: Branford CT
On the highway the RPM's stay around 2,000 to 2,500 at 75 to 80 miles an hour. It feels like it is in gear on the highways becasue when i play with the gas on the highway it feels like I am driving in a lower gear.
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Thats cuz its not locking up. Almost feels like your in 3rd huh? Try to raise the tcc press or delete the tcc pwm.
Never do a shift kit. Theyll kill the trans even faster. The best built transmissions Ive seen still use a lot of stock components and dont have stupid hard shifts...you dont want that and neither does your trans. Its all about good consistent pressure and good quality clutches and bands, as well as a beefier drum like one off a 700r4.
Joined: Aug 2007
Posts: 24,241
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From: Turnin' Wrenches Infractions: 005
With a normal functioning tranny, shift kit or not, tuned for fimer shifts or not, an aftermarket converter WILL soften shifts over the stock stall. Period. Argue whatever other points you want. Im answering OPs question in the simpliest form.
Straight from the auto trans stickies, which obviously the OP didnt read:
2-Shifts become softer or slipping after a converter install.
No in fact the shifts remain the same as before the converter install. They feel softer because of the converters shift extension/looseness. The transmission it self is doing exactly the same as it did before the converter. Now It can be advantageous to firm the shifts up since more torque is being transferred though the trans at WOT.
Straight from the auto trans stickies, which obviously the OP didnt read:
2-Shifts become softer or slipping after a converter install.
No in fact the shifts remain the same as before the converter install. They feel softer because of the converters shift extension/looseness. The transmission it self is doing exactly the same as it did before the converter. Now It can be advantageous to firm the shifts up since more torque is being transferred though the trans at WOT.
Well I was answering his question on how the trans feels while at cruising speeds which as he describes is tcc slippage and or the converter is not locking up. Seems the OP has more than one concern. Tcc slippage is not good or normal, that was my point.
Never do a shift kit. Theyll kill the trans even faster. The best built transmissions Ive seen still use a lot of stock components and dont have stupid hard shifts...you dont want that and neither does your trans. Its all about good consistent pressure and good quality clutches and bands, as well as a beefier drum like one off a 700r4.
well it dont matter to me. Ive got my FLT trans and i know its done right.
Never do a shift kit. Theyll kill the trans even faster. The best built transmissions Ive seen still use a lot of stock components and dont have stupid hard shifts...you dont want that and neither does your trans. Its all about good consistent pressure and good quality clutches and bands, as well as a beefier drum like one off a 700r4.
None, I know.
Learn to set up a shift kit properly and you won't get stupid hard shifts.
It seems you think you fixed a friends tcc pwm and now you're a transmission expert.
