Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters

Heavy duty transmission ls6

Thread Tools
 
Search this Thread
 
Old 10-16-2013, 08:47 PM
  #1  
Registered User
Thread Starter
 
Myhre90's Avatar
 
Join Date: Oct 2013
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default Heavy duty transmission ls6

I'm building a ls6 with turbo! And hope to Get out 1200-1300nm (885-958 ft lb) what is the best manual gearbox?
And where can i buy it?
Old 10-16-2013, 09:54 PM
  #2  
TECH Addict
iTrader: (6)
 
badazz81z28's Avatar
 
Join Date: Sep 2005
Posts: 2,389
Likes: 0
Received 2 Likes on 2 Posts

Default

Wow...A manual to hold that much torque. I would venture to guess a worked over T56 Magnum. After that, I suspect you will be limited on options. Either a non OD tranny or an auto.
Old 10-17-2013, 05:01 AM
  #3  
9 Second Club
 
stevieturbo's Avatar
 
Join Date: Nov 2003
Location: Norn Iron
Posts: 13,616
Received 179 Likes on 154 Posts

Default

Originally Posted by Myhre90
I'm building a ls6 with turbo! And hope to Get out 1200-1300nm (885-958 ft lb) what is the best manual gearbox?
And where can i buy it?
What vehicle, weight, application etc etc

"Best" isnt a universal term.
Old 10-17-2013, 10:32 AM
  #4  
Registered User
Thread Starter
 
Myhre90's Avatar
 
Join Date: Oct 2013
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by stevieturbo
What vehicle, weight, application etc etc

"Best" isnt a universal term.
It will be in a Toyota Supra Mk4.
And it will be a drift car
I`m going to drive with 285/45-17 Slicks tires.
The car weight is maybe 1400kg +-
Old 10-17-2013, 10:48 AM
  #5  
10 Second Club
iTrader: (5)
 
blue99fbody's Avatar
 
Join Date: Nov 2007
Location: Cincinnati
Posts: 1,052
Likes: 0
Received 0 Likes on 0 Posts
Default

www.rpmtansmission.com call jeremy he can get u set up with what you need.
Old 10-17-2013, 10:51 AM
  #6  
9 Second Club
 
stevieturbo's Avatar
 
Join Date: Nov 2003
Location: Norn Iron
Posts: 13,616
Received 179 Likes on 154 Posts

Default

Best....again, options.

It's a conversion, so you arent tied to a particular fitment other than bolting to an LS engine. On that basis, some of the newer T56 Magnum's would probably be best bang for buck.
Just choose whichever fitment suits best as far as stick position and gear ratios.

http://www.tremec.com/menu.php?m=104

Being a Supra, I think they use a relatively short rear diff...that will make life easier on the trans anyway

Just be sure and get the shorter gearset with the 0.63 6th gear
Probably the 2.66 to 0.63 would be best

Although I think your torque goals or expectations are a little high for a drag car. I'd aim for more/wider rpm's and less torque

RPM Transmissions, Tick Performance, etc etc

You could go and have something fancy built....but there really wouldnt be much point.
Old 10-17-2013, 10:56 AM
  #7  
TECH Resident
iTrader: (8)
 
2muchboostNY's Avatar
 
Join Date: Jun 2013
Posts: 801
Likes: 0
Received 0 Likes on 0 Posts
Default

OP....just a question, why such a high HP power goal for drifting even in a Supra chassis? I have seen Supras thrashing around with much lower HP then what you are after...hence my question.
Old 10-17-2013, 10:59 AM
  #8  
9 Second Club
 
stevieturbo's Avatar
 
Join Date: Nov 2003
Location: Norn Iron
Posts: 13,616
Received 179 Likes on 154 Posts

Default

Originally Posted by 2muchboostNY
OP....just a question, why such a high HP power goal for drifting even in a Supra chassis? I have seen Supras thrashing around with much lower HP then what you are after...hence my question.
To be fair, he hasnt stated a power goal, only torque. But I agree it does sound excessive.

Most of the big drift cars over this side of the pond, 800-1000hp would be right at the upper limit of the top cars. And they would not have similar torque, as they are high revving screamers.

By all means aim for 8-900hp, but I'd say less torque, and aim for as wide an operating rpm range as possible
Old 10-17-2013, 08:52 PM
  #9  
TECH Resident
iTrader: (8)
 
2muchboostNY's Avatar
 
Join Date: Jun 2013
Posts: 801
Likes: 0
Received 0 Likes on 0 Posts
Default

Oooops misread the op. still that amount of torque seems excessive for a drift car.



Quick Reply: Heavy duty transmission ls6



All times are GMT -5. The time now is 08:09 AM.