# LS or Gsr tranny? **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [December 22, 2007, 11:56pm UTC](https://forums.speedlife.net/t/ls-or-gsr-tranny/194341 "2007-12-22T23:56:31Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![watacanga](https://avatars.discourse-cdn.com/v4/letter/w/85f322/32.png) [@watacanga](https://forums.speedlife.net/u/watacanga)\ **Post date:** [December 22, 2007, 11:56pm UTC](https://forums.speedlife.net/t/ls-or-gsr-tranny/194341/1 "2007-12-22T23:56:31Z")
which tranny is going to be better for the street? i want quick acceleration but i don’t want to lay tire like a mofo. is the LS tranny going to give me better traction because the gears aren’t as steep or will it be too much of a turd compared to the gsr? this will be a gsr motor with a 57 trim to4b turbo approx 300whp, maybe 350. i’ve heard arguments for both tranny’s so convince me somebody. and in a quarter mile, how much difference can be expected between the two tranny’s with the exact same setup? are we talking a few tenths or a half second? and what’s the difference between a cable and hydraulic transmission? can either be used with any year motor or what??? ---
**Author:** ![cmross13](https://avatars.discourse-cdn.com/v4/letter/c/a6a055/32.png) [@cmross13](https://forums.speedlife.net/u/cmross13)\ **Post date:** [December 23, 2007, 3:22am UTC](https://forums.speedlife.net/t/ls-or-gsr-tranny/194341/2 "2007-12-23T03:22:25Z")
long story short, a B16 or GSR trans would be better for all motor, and the LS trans better for turbo application, in daily driver duty. not to say you couldnt use a GSR trans on a turbo motor, but the long gears of an LS trans would be better suited to a turbo application because of the torque. personally i would go with a GSR trans with an LS or B16 4.266:1 final drive R&P(GSR is 4.4:1). stretches out the gearing a little bit, but not enough to make it boring and you can use any b series trans with any b series motor. what matters is the chassis. pre-91 cars have a cable actuated clutch, where as post 1992 cars have a hydraulic unit. you can buy an adaptor from hasport to make either trans work in either application, but your gonna be hard pressed to find anything but B16/XSi trannies in cable, and you DONT want either on a turbo motor for street driving. ---
**Author:** ![munster\_ek](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/munster_ek/32/5977_2.png) [@munster\_ek](https://forums.speedlife.net/u/munster_ek)\ **Post date:** [December 23, 2007, 7:40am UTC](https://forums.speedlife.net/t/ls-or-gsr-tranny/194341/3 "2007-12-23T07:40:38Z")
I had an LS trans in my turbo hatch…put a GSR in and dropped .20 in the 1/4 with no other mods. Feels no different in 1 or 2. fall out of boost shifting into 3rd. 3rd gear in an LS is super long and shift 4th and it falls on its face again. at the track with an LS you cross the traps on limiter in 3rd. GSR crosses the traps in boost in 4th about 3/4 on tach. In short…get an LS if you want fuel economy for a street/track car. GSR is where it’s at IMO. ---
**Author:** ![fmfkid250](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fmfkid250/32/5973_2.png) [@fmfkid250](https://forums.speedlife.net/u/fmfkid250)\ **Post date:** [December 23, 2007, 8:12am UTC](https://forums.speedlife.net/t/ls-or-gsr-tranny/194341/4 "2007-12-23T08:12:22Z")
GSR ---
**Author:** ![watacanga](https://avatars.discourse-cdn.com/v4/letter/w/85f322/32.png) [@watacanga](https://forums.speedlife.net/u/watacanga)\ **Post date:** [December 23, 2007, 8:41am UTC](https://forums.speedlife.net/t/ls-or-gsr-tranny/194341/5 "2007-12-23T08:41:38Z")
i didn’t know 1st and 2nd were the same. i guess that wouldn’t help prevent ripping up tires. i should be making boost around 4k and shifting at stock redline which is what 8400?? gsr’s are like twice as much which sucks ---
**Author:** ![fmfkid250](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fmfkid250/32/5973_2.png) [@fmfkid250](https://forums.speedlife.net/u/fmfkid250)\ **Post date:** [December 23, 2007, 9:54am UTC](https://forums.speedlife.net/t/ls-or-gsr-tranny/194341/6 "2007-12-23T09:54:41Z")
[www.fatboyraceworks.com/gears](http://www.fatboyraceworks.com/gears) have fun! ---
**Author:** ![fmfkid250](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fmfkid250/32/5973_2.png) [@fmfkid250](https://forums.speedlife.net/u/fmfkid250)\ **Post date:** [December 23, 2007, 9:59am UTC](https://forums.speedlife.net/t/ls-or-gsr-tranny/194341/7 "2007-12-23T09:59:01Z")
> [@attn: bullies and/or lawyers](https://forums.speedlife.net/t/attn-bullies-and-or-lawyers/34039/39): > > i didn’t know 1st and 2nd were the same. i guess that wouldn’t help prevent ripping up tires. i should be making boost around 5k and shifting at stock redline which is what 8400?? gsr’s are like twice as much which sucks Fixed… Go with whatever you can get cheaper… I ran both GSR and LS and yes the GSR feels faster. but they both come up with the same ET’s… ---
**Author:** ![captain\_chaos](https://avatars.discourse-cdn.com/v4/letter/c/ce73a5/32.png) [@captain\_chaos](https://forums.speedlife.net/u/captain_chaos)\ **Post date:** [December 28, 2007, 4:40pm UTC](https://forums.speedlife.net/t/ls-or-gsr-tranny/194341/8 "2007-12-28T16:40:39Z")
GSR FTW!!! ---
**Author:** ![fmfkid250](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fmfkid250/32/5973_2.png) [@fmfkid250](https://forums.speedlife.net/u/fmfkid250)\ **Post date:** [December 28, 2007, 5:22pm UTC](https://forums.speedlife.net/t/ls-or-gsr-tranny/194341/9 "2007-12-28T17:22:30Z")
on a 24" tire @118mph is 7600 rpm on a stock ls tranny ---
**Author:** ![Zack01GC](https://avatars.discourse-cdn.com/v4/letter/z/a183cd/32.png) [@Zack01GC](https://forums.speedlife.net/u/Zack01GC)\ **Post date:** [December 28, 2007, 10:57pm UTC](https://forums.speedlife.net/t/ls-or-gsr-tranny/194341/10 "2007-12-28T22:57:48Z")
Buddy of mine has a GSR tranny… at 80 MPH he’s taching close to 4000 RPM on the highway in 5th. Don’t know if you use the highway a lot, but thought I’d throw that out there. ---
**Author:** ![dyingwish](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dyingwish/32/6041_2.png) [@dyingwish](https://forums.speedlife.net/u/dyingwish)\ **Post date:** [December 30, 2007, 1:38pm UTC](https://forums.speedlife.net/t/ls-or-gsr-tranny/194341/11 "2007-12-30T13:38:24Z")
> [@WTB: atv / lawn mower / minibike tires... with rims](https://forums.speedlife.net/t/wtb-atv-lawn-mower-minibike-tires-with-rims/34000/8): > > Buddy of mine has a GSR tranny… at 80 MPH he’s taching close to 4000 RPM on the highway in 5th. Don’t know if you use the highway a lot, but thought I’d throw that out there. Agreed, ideally I’d want a 4.8ish FD and a LS fifth gear in my GSR box…frankly I’m tired of hearing the motor spin on the highway. ---
**Author:** ![bald1one](https://avatars.discourse-cdn.com/v4/letter/b/9de053/32.png) [@bald1one](https://forums.speedlife.net/u/bald1one)\ **Post date:** [December 30, 2007, 1:41pm UTC](https://forums.speedlife.net/t/ls-or-gsr-tranny/194341/12 "2007-12-30T13:41:17Z")
> [@Ban Wearers of Crocs on NYSpeed?](https://forums.speedlife.net/t/ban-wearers-of-crocs-on-nyspeed/34126/16): > > Agreed, ideally I’d want a 4.8ish FD and a LS fifth gear in my GSR box…frankly I’m tired of hearing the motor spin on the highway. exactly ---
**Author:** ![06F4i](https://avatars.discourse-cdn.com/v4/letter/0/e99b99/32.png) [@06F4i](https://forums.speedlife.net/u/06F4i)\ **Post date:** [January 4, 2008, 8:24pm UTC](https://forums.speedlife.net/t/ls-or-gsr-tranny/194341/13 "2008-01-04T20:24:13Z")
GSR FTW!