The Transmission Thread!
09-18-2007, 04:51 PM
#1
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The Transmission Thread!
Chevy Cobalts come with two different transmissions depending on your model. Here is some info.
Here is the GM transmission guide.
http://www.gminsidenews.com/index.php?page=trans_guide
2.2L/2.4L Manual
Getrag F23
Type: transverse front wheel drive, five-speed manual transaxle.
Engine Range: 2.2L-2.4L
Max Gearbox Torque: 170 lb.-ft.
Weight: 102 lbs.
Applications: Chevrolet Cobalt, HHR; Pontiac G5
2.2L/2.4L Automatic
Hydra-Matic 4T40E/4T45E
Type: four-speed front-wheel-drive, electronically controlled, automatic overdrive transaxle with electronically controlled torque converter clutch.
Engine Range: 2.2L-3.5L
Max Gearbox Torque: 325 lb.-ft.
Weight: 188 lbs.
Assembly Site: Windsor, Ontario
Applications: Chevrolet: Cobalt, Malibu, Pontiac: G5, G6, Saturn Vue 4-Cylinder.
With a max TQ rating of 325 lb/ft, it doesn't seem to be the weak link..
2.0L Supercharged
GM Europe F35
Type: transverse front wheel drive, five speed manual transaxle.
Engine Range: 2.0L
Max Gearbox Torque: 258 lb.-ft.
Weight: 99 lbs.
Applications: Chevrolet Cobalt SS
Here is the GM transmission guide.
http://www.gminsidenews.com/index.php?page=trans_guide
2.2L/2.4L Manual
Getrag F23
Type: transverse front wheel drive, five-speed manual transaxle.
Engine Range: 2.2L-2.4L
Max Gearbox Torque: 170 lb.-ft.
Weight: 102 lbs.
Applications: Chevrolet Cobalt, HHR; Pontiac G5
2.2L/2.4L Automatic
Hydra-Matic 4T40E/4T45E
Type: four-speed front-wheel-drive, electronically controlled, automatic overdrive transaxle with electronically controlled torque converter clutch.
Engine Range: 2.2L-3.5L
Max Gearbox Torque: 325 lb.-ft.
Weight: 188 lbs.
Assembly Site: Windsor, Ontario
Applications: Chevrolet: Cobalt, Malibu, Pontiac: G5, G6, Saturn Vue 4-Cylinder.
With a max TQ rating of 325 lb/ft, it doesn't seem to be the weak link..
2.0L Supercharged
GM Europe F35
Type: transverse front wheel drive, five speed manual transaxle.
Engine Range: 2.0L
Max Gearbox Torque: 258 lb.-ft.
Weight: 99 lbs.
Applications: Chevrolet Cobalt SS
09-18-2007, 09:41 PM
#4
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09-19-2007, 08:54 AM
#9
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Thank you sir.
Good question. I'm not sure. Hopefully someone chimes in.
Once we find out I will add the info to the first post.
09-19-2007, 02:14 PM
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09-21-2007, 10:23 AM
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09-30-2007, 02:33 AM
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its all about bellhousing for the auto to 2.0 swap. the f40 will not fit in the 2.0 sorry. you can get it regeared by QUALIFE... or built by a pro tranny builder(shoot peened gears and stronger shift forks).. but its $$$$
09-30-2007, 07:38 PM
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10-11-2007, 10:03 AM
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ok so i have done some research not much cuz i still have questions. The saab 9-3 uses an lk9 2.0l ecotec engine that is as far as i can tell the same as the lsj or ls1. the lk9 however uses the f40 transmission where as the lsj uses the f35. Why wouldnt you be able to swap these out? any information would be great on this. http://www.ecotecforum.com/forums/showthread.php?t=2100
http://media.gm.com/us/powertrain/en...EC20LI4ENGINES
just a couple informative pages
if you got anything else chime in please
http://media.gm.com/us/powertrain/en...EC20LI4ENGINES
just a couple informative pages
if you got anything else chime in please
10-11-2007, 10:09 AM
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This is the first time I seen this thread since I been back. All I have to say is the LSJ tranny weighs alot more then 99 pounds lol. If that would of been the case I could of bench pressed it back into the car. That thing took 4 of us to pick it up and place it in correctly lol.
10-11-2007, 10:24 AM
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The auto tranny weighs a damn ton...that's why it can handle 325 ft'lbs of torque.
Interesting information though. I wasn't aware that the f23 was so limited. The 2.2l and 2.4l manualguys really need to be careful with F/I or Nitrous Oxide applications
Interesting information though. I wasn't aware that the f23 was so limited. The 2.2l and 2.4l manualguys really need to be careful with F/I or Nitrous Oxide applications
10-30-2007, 09:41 PM
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Well thats the problem. I have a 2.2 man and i thought that i would be ok running aprx 250hp through the tranny as long as i drove it as the gears were straight cut. I know that sounds dumb but it just invovles double-clutching and rev matching (which i am fully capable of)....i need info on how much power people are running through this tranny!!!!
10-30-2007, 10:05 PM
#22
the f23 has been in the j-body since 2000. lots of people running plenty of power through them with the gm supercharger kits, turbo kits, nitrous. there have been people putting 400hp though one, i know the hahn turbo sunfire was running over 450hp on a street driven car.
