Doughie Posted November 19, 2001 Share Posted November 19, 2001 What is the maximum % difference in rotational speed that the Toyota LSD will allow ? If no-one knows the exact figure, can someone suggest the approximate percentage. thanks Quote Link to comment Share on other sites More sharing options...
Steve Cargill Posted November 19, 2001 Share Posted November 19, 2001 Stu, the Supra as a TORSEN LSD that allows a torque difference of 5:1, not a rotational difference like a clutch LSD. The down side is that if you have one wheel on ice or in the air :-)) then it will be getting nearly zero torque and thus the other wheel will be getting a max of five times nearly zero torque... I guess this explains why the Supra can sometines leave one thick black line after a burnout and not the more impressive two..... Quote Link to comment Share on other sites More sharing options...
Phil Wall Posted November 19, 2001 Share Posted November 19, 2001 Quote: from Steve Cargill on 2:11 pm on Nov. 19, 2001[br]Stu, the Supra as a TORSEN LSD that allows a torque difference of 5:1, not a rotational difference like a clutch LSD. The down side is that if you have one wheel on ice or in the air :-)) then it will be getting nearly zero torque and thus the other wheel will be getting a max of five times nearly zero torque........ I thought the 5:1 only occurred in starting conditions, when one wheel was stationary. In moving conditions I always assumed the system locked the torque to both wheels, even if it is different levels of torque to each. Quote Link to comment Share on other sites More sharing options...
Rich J Posted November 19, 2001 Share Posted November 19, 2001 I guess this explains why the Supra can sometines leave one thick black line after a burnout and not the more impressive two..... That's because not all of them have LSD. Quote Link to comment Share on other sites More sharing options...
Doughie Posted November 19, 2001 Author Share Posted November 19, 2001 Steve Yeah but sorry not convinced by that. Might be a torque-sensing LSD..... ...... BUT if one wheel is spinning relatively freely, and the other is getting "5 times close to zero torque" that can't be true as where is all the engine power GOING ?? whole point of an LSD is that it stops one wheel spinning madly-fast and spinning away all the engine power, by locking or nearly-locking the driven axle so that BOTH wheels will have to spin and therefore this means that it generally delays the point of spin-up to when BOTH wheels lose grip and spin. = more straight-line thrust and grip. Hence Hardhead's comment about the black lines. A car without LSD will leave one black line due to the wheel with least grip spinning merrily away, while the other wheel grips (more or less). LSD should mean that you either get NO black lines or TWO black lines. IMHO... Quote Link to comment Share on other sites More sharing options...
Steve Cargill Posted November 20, 2001 Share Posted November 20, 2001 You are rights Stu, I'd gone off a bit there. Have a look at the link below, seems to give a good amount of info about TORSEN diffs. http://www.sonic.net/garyg/zonc/TechnicalInformation/TorsenDifferential.html Quote Link to comment Share on other sites More sharing options...
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