Pontiac Solstice Forum - View Single Post - Paddle Shifters?? Is anyone planning on making them?

But the HP Tuners website doesn't note the CTS transmission as locked like it does the Solstice/Sky, which to me implies that it is accessible for changes. There you can change the shift points to accomodate the Ecotec characteristics. That is propably the route I will attempt for my project. I'm not exactly building a Kappa car.

I'm glad the 5L40E is so dependant on the TCM. I have seen the results of a tuned 4T45-E trans in the 2.4 Cobalt. With HP Tuners you can adjust the shift points and raise the line pressures to get more of a manual feel. It needed a trans cooler to keep the shifts consistant during aggressive driving.

Here is another GM spec sheet I found on the 5L40E. I like that it is rated at to handle 494 lb-ft of torque. Should work perfect for my application.
http://media.gm.com/us/powertrain/en...0(M82,MX5).pdf

Quote:

Originally Posted by alcyon73

The TCM sets the shift points. Changing it for the caddy unit might result in a not so good set of shift points for the sol's 4 cylinder.

I'm betting that BMW is right and that all you need to do is to jumper the connector correctly ahd hook a proper shifter to it.
No change to the TCM at all....

Here is an article about some of the 5L40E's capabilities...it's impressive.
http://www.skyroadster.com/forums/ar...hp/t-7954.html
Me

	Cobalt_SC Member Join Date: Jul 2007	But the HP Tuners website doesn't note the CTS transmission as locked like it does the Solstice/Sky, which to me implies that it is accessible for changes. There you can change the shift points to accomodate the Ecotec characteristics. That is propably the route I will attempt for my project. I'm not exactly building a Kappa car. I'm glad the 5L40E is so dependant on the TCM. I have seen the results of a tuned 4T45-E trans in the 2.4 Cobalt. With HP Tuners you can adjust the shift points and raise the line pressures to get more of a manual feel. It needed a trans cooler to keep the shifts consistant during aggressive driving. Here is another GM spec sheet I found on the 5L40E. I like that it is rated at to handle 494 lb-ft of torque. Should work perfect for my application. http://media.gm.com/us/powertrain/en...0(M82,MX5).pdf Quote: Originally Posted by alcyon73 The TCM sets the shift points. Changing it for the caddy unit might result in a not so good set of shift points for the sol's 4 cylinder. I'm betting that BMW is right and that all you need to do is to jumper the connector correctly ahd hook a proper shifter to it. No change to the TCM at all.... Here is an article about some of the 5L40E's capabilities...it's impressive. http://www.skyroadster.com/forums/ar...hp/t-7954.html Me