tune needed for converter swap?
Thread Starter
Teching In
Joined: Feb 2010
Posts: 23
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From: Grand Rapids, MI
tune needed for converter swap? 1993 Z28(speed density), im putting in a yank SS3600, a non electronic transmission for this year, do i need a tune? sorry its a re post but nobody in the tunnng section would help or knew the answer.Thanks
TECH Fanatic
Joined: Jun 2007
Posts: 1,255
Likes: 11
From: centerville, ohio
A bolt-on tune was my first mod and you should get it regardless, although not needed. I used Alvin at pcmforless. Also make sure you use a good tranny cooler with the Yank.
Thread Starter
Teching In
Joined: Feb 2010
Posts: 23
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From: Grand Rapids, MI
yes i am installing a good sized trans cooler when i do this, i just dont want my car running/driving like ***, so even though i will get a tune later on it is not needed at this point just for the torque converter right?
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TECH Apprentice
Joined: Aug 2006
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This will be the third year I will be running an edge 3400 stall converter in my 93 z28. It has a big transmission cooler from B and M and does not bypass the stock cooler in the radiator, so it uses both of them. If you transmission has alot of miles, do not put a shift kit in it, increased pressure in the transmission and firmer shifts only deteriorates the clutches faster...my brother tried to tell me it was the right thing to do, and the transmission stopped shifting into 2 and 4 right shortly after putting it in.
Just make sure you adjust your t.v. cable when you put it in, it might need to be re calibrated due to the slippage caused by the converter can throw the shift points off. I think 1st should shift at 15, 2nd at 35, and 3-4 at 45...someone please chime in if those are the wrong mph at which the transmission is supposed to shift at under normal throttle. The tv cable adjusts the line pressure in the transmission and is located on the throttle body. It is only available on the 93 camaros, 94 has the 4l60e. Also, do not break the tv cable when you are taking the tranmission out, it is very hard to replace as they are discontinued from gm.
Anything else just send a pm.
Just make sure you adjust your t.v. cable when you put it in, it might need to be re calibrated due to the slippage caused by the converter can throw the shift points off. I think 1st should shift at 15, 2nd at 35, and 3-4 at 45...someone please chime in if those are the wrong mph at which the transmission is supposed to shift at under normal throttle. The tv cable adjusts the line pressure in the transmission and is located on the throttle body. It is only available on the 93 camaros, 94 has the 4l60e. Also, do not break the tv cable when you are taking the tranmission out, it is very hard to replace as they are discontinued from gm.
Anything else just send a pm.
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Verdad Gallardo Thread Starter
Teching In
Joined: Feb 2010
Posts: 23
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From: Grand Rapids, MI
Thanks for the heads up on that, the trans already had a stout shift kit in it when i bought the car last year, dont know what kind it is though, and the car has 127k, motor and trans are questionable i see new gaskets on oil pan ect. but that doesnt mean anything.
This will be the third year I will be running an edge 3400 stall converter in my 93 z28. It has a big transmission cooler from B and M and does not bypass the stock cooler in the radiator, so it uses both of them. If you transmission has alot of miles, do not put a shift kit in it, increased pressure in the transmission and firmer shifts only deteriorates the clutches faster...my brother tried to tell me it was the right thing to do, and the transmission stopped shifting into 2 and 4 right shortly after putting it in.
Just make sure you adjust your t.v. cable when you put it in, it might need to be re calibrated due to the slippage caused by the converter can throw the shift points off. I think 1st should shift at 15, 2nd at 35, and 3-4 at 45...someone please chime in if those are the wrong mph at which the transmission is supposed to shift at under normal throttle. The tv cable adjusts the line pressure in the transmission and is located on the throttle body. It is only available on the 93 camaros, 94 has the 4l60e. Also, do not break the tv cable when you are taking the tranmission out, it is very hard to replace as they are discontinued from gm.
Anything else just send a pm.
Just make sure you adjust your t.v. cable when you put it in, it might need to be re calibrated due to the slippage caused by the converter can throw the shift points off. I think 1st should shift at 15, 2nd at 35, and 3-4 at 45...someone please chime in if those are the wrong mph at which the transmission is supposed to shift at under normal throttle. The tv cable adjusts the line pressure in the transmission and is located on the throttle body. It is only available on the 93 camaros, 94 has the 4l60e. Also, do not break the tv cable when you are taking the tranmission out, it is very hard to replace as they are discontinued from gm.
Anything else just send a pm.
The shift points are controlled by the governor, mine factory shifted into 4th at about 35. I rebuilt the governor and now it goes into 4th at 50. You don't want it to shift too low or the motor will lug and bog down.
OP, if you want to make a sound decision now and save grief later, I'd check out Probuilt Automatics for a relatively inexpensive full rebuild kit. I say this because if you bought the car with a shift kit in it already, someone was running it harder than usual and you don't know the history of the trans.
Probuilt Automatics
http://www.700r4l60e.com/
Sometimes a high stall will cause stock programming to surge because the pcm is not seeing the load at idle/coast it expects. Annoyance at worst, can wait to retune till you have other stuff needing attention.
