how strong is the CTS 6 speed transmission?
08-06-2018, 04:45 PM
#2
The Gen1 CTSv transmission is a PITA to retrofit into another car if that is your question. It also needs an expensive CV style driveshaft. The gearing isn't great either.... plus parts are becoming scarce for those style gear ratio transmissions and $$$$.
08-06-2018, 08:43 PM
#3
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Thank you for the information My son is doing LS swap in a 3 series BMW. He purchased ( out of state ) what is supposed to be a 6 soeed from a GTO. Upon inspection it is either a CTS or possibly a corvette transmission. But either way it is without a slip joint in the tail shaft of the unit. So we either ship it back or fab a driveshaft to use this. But that is also after we see if there is a way to get the correct shifter to fit this. How can you have a business and sell what is obviously not the part you listed!!has anyone here seen a BMW-LS SWAP with 6 speed and can offer any advise on transmissions and shifters? Thanks Steve
08-06-2018, 09:19 PM
#5
Corvette has the transmission in the back of the car attached directly to the differential. You’d know if it was a corvette transmission. As far as it not having a slip-joint - pretty much every modern transmission is like that now, they use a rubber flex disc coupler and cv-joints, and any self-respecting driveline shop will be able to make a driveshaft for it.
Why would you try doing a swap like this if you weren’t willing to have custom parts made? Quit your moaning.
Why would you try doing a swap like this if you weren’t willing to have custom parts made? Quit your moaning.
08-07-2018, 06:55 AM
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Thanks for the friendly reply Corvette has the transmission in the back of the car attached directly to the differential. You’d know if it was a corvette transmission. As far as it not having a slip-joint - pretty much every modern transmission is like that now, they use a rubber flex disc coupler and cv-joints, and any self-respecting driveline shop will be able to make a driveshaft for it.
Why would you try doing a swap like this if you weren’t willing to have custom parts made? Quit your moaning.
Why would you try doing a swap like this if you weren’t willing to have custom parts made? Quit your moaning.
08-07-2018, 09:13 AM
#7
TECH Apprentice
The CTS-V and GTO are basically the same unit less the output shaft,extension housing and input shaft length. As previously stated, the biggest issue is the driveshaft design of the CTS-V and the remote shifter design.
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08-07-2018, 05:39 PM
#8
The GTO and CTS-V boxes have a slight shifting advantage at escalated RPM vs. the F-body.
Strength difference isn't relevant between the two.
Worry about ratios and driveability in the finished car over all that crap. Some of the 3-series may have a rear differential ratio that matches up vey well with the CTS-V box ratios. GNX7 makes a good point if you're building a lighter car. Less so, if it is heavier, or if the rear diff is taller, or the engine is smaller.
I like the case mounted shifters better, and I don't feel there is an advantage for me to go with the added expense of a slip joint driveline, so I wouldn't go tripod fixed yoke transmission. Your son's project may be more suited to the remote shifter and slip-yoke / guibo disc driveline.
happy building.
Strength difference isn't relevant between the two.
Worry about ratios and driveability in the finished car over all that crap. Some of the 3-series may have a rear differential ratio that matches up vey well with the CTS-V box ratios. GNX7 makes a good point if you're building a lighter car. Less so, if it is heavier, or if the rear diff is taller, or the engine is smaller.
I like the case mounted shifters better, and I don't feel there is an advantage for me to go with the added expense of a slip joint driveline, so I wouldn't go tripod fixed yoke transmission. Your son's project may be more suited to the remote shifter and slip-yoke / guibo disc driveline.
happy building.
08-07-2018, 05:49 PM
#9
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My son is doing LS swap in a 3 series BMW. He purchased ( out of state ) what is supposed to be a 6 soeed from a GTO. Upon inspection it is either a CTS or possibly a corvette transmission. But either way it is without a slip joint in the tail shaft of the unit. So we either ship it back or fab a driveshaft to use this. But that is also after we see if there is a way to get the correct shifter to fit this. How can you have a business and sell what is obviously not the part you listed!!has anyone here seen a BMW-LS SWAP with 6 speed and can offer any advise on transmissions and shifters? Thanks Steve
And pretty sure there is a BMW linkage that will work with the 6060 based transmissions with a remote shifter.