GS430 + 3.76 lsd + Snow & Sleet
02-03-05, 08:43 PM
#46
Originally Posted by e-man
Thanks, Chuck. Now it makes sense to me. So I'm not sure what the 3.76 number means, but it's larger than the stock diff., which is like 3.2 something. So, in effect, the gears are taller/larger, which means they can spin easier. What does the 3.76 refer to? Is that the tallest gear (i.e., 1st gear) or the smallest (overdrive)? And, if that number does refer to one particular gear, how can you tell the size of the other gears from that number?
02-03-05, 08:46 PM
#47
Originally Posted by rominl
if i am correct, that's the ratio of gears. so meaning that the axle will hve to turn 3.76 turns before the wheel makes one turn. so you can see how the rpm will raise higher for the same speed.
Are all gears spaced equally? I don't think so. In other words, if you put a 3.76 diff next to a 3.92, how would the gears be spaced relative to each other?
02-03-05, 08:54 PM
#48
Lexus Fanatic
Originally Posted by e-man
That makes sense, but only for one of the gears. The axle couldn't turn 3.76 times for one turn of the wheel in all gears, right?
Are all gears spaced equally? I don't think so. In other words, if you put a 3.76 diff next to a 3.92, how would the gears be spaced relative to each other?
Are all gears spaced equally? I don't think so. In other words, if you put a 3.76 diff next to a 3.92, how would the gears be spaced relative to each other?
j/kthe ratio on the rear end , I think, refers to how many rotations the drive shaft makes in comparison to the axle. the trans ratios are not affected.
02-03-05, 09:01 PM
#49
Originally Posted by e-man
That makes sense, but only for one of the gears. The axle couldn't turn 3.76 times for one turn of the wheel in all gears, right?
Are all gears spaced equally? I don't think so. In other words, if you put a 3.76 diff next to a 3.92, how would the gears be spaced relative to each other?
Are all gears spaced equally? I don't think so. In other words, if you put a 3.76 diff next to a 3.92, how would the gears be spaced relative to each other?
02-03-05, 09:26 PM
#50
Originally Posted by chuckb
e-are you trying to confuse me or yourself? j/k
the ratio on the rear end , I think, refers to how many rotations the drive shaft makes in comparison to the axle. the trans ratios are not affected.
j/kthe ratio on the rear end , I think, refers to how many rotations the drive shaft makes in comparison to the axle. the trans ratios are not affected.
By the way, Chuck, I just realized that I don't know what the hell I'm talking about. I was confusing the gearing in the transmission with the ratio of the differential. Two completely different concepts. Now I understand exactly what a high ratio LSD will do for the performance. I assume at some point, the ratio can become too high. Do you think you might drop in the 3.76 once your warranty expires? It would be interesting to see the before and after numbers if you take your car to the track.
Last edited by e-man; 02-03-05 at 09:38 PM.
02-03-05, 10:53 PM
#51
Lexus Champion
3.76 Lsd.
Originally Posted by GILLEXUS
I just shot Steve a message I'll keep you posted. I'm on the fence to about the Supra LSD or to install the TRD LSD I have.
I'm sure alot of us would appreciate it.
One thing about the TRD LSD is that, unless you buy the ring and pinion with the 3.76 gears, you will only get the limited slip. The nice thing about the Supra TT Torsen LSD is it comes with everything. The whole "pumkin" is already assembled and ready to install. I think you end up spending the same amount of money either way so why not get the whole package. Just food for thought.
Will
02-04-05, 12:52 AM
#52
Originally Posted by e-man
Now that makes sense -- the ratio of the drive shaft to the axle.
By the way, Chuck, I just realized that I don't know what the hell I'm talking about. I was confusing the gearing in the transmission with the ratio of the differential. Two completely different concepts. Now I understand exactly what a high ratio LSD will do for the performance. I assume at some point, the ratio can become too high. Do you think you might drop in the 3.76 once your warranty expires? It would be interesting to see the before and after numbers if you take your car to the track.
By the way, Chuck, I just realized that I don't know what the hell I'm talking about. I was confusing the gearing in the transmission with the ratio of the differential. Two completely different concepts. Now I understand exactly what a high ratio LSD will do for the performance. I assume at some point, the ratio can become too high. Do you think you might drop in the 3.76 once your warranty expires? It would be interesting to see the before and after numbers if you take your car to the track.
02-04-05, 12:53 AM
#53
Originally Posted by TAMR_GUS98
O.K., Thanks Gill.
I'm sure alot of us would appreciate it.
One thing about the TRD LSD is that, unless you buy the ring and pinion with the 3.76 gears, you will only get the limited slip. The nice thing about the Supra TT Torsen LSD is it comes with everything. The whole "pumkin" is already assembled and ready to install. I think you end up spending the same amount of money either way so why not get the whole package. Just food for thought.
Will
I'm sure alot of us would appreciate it.
One thing about the TRD LSD is that, unless you buy the ring and pinion with the 3.76 gears, you will only get the limited slip. The nice thing about the Supra TT Torsen LSD is it comes with everything. The whole "pumkin" is already assembled and ready to install. I think you end up spending the same amount of money either way so why not get the whole package. Just food for thought.
Will
02-04-05, 03:54 AM
#54
Pole Position
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Originally Posted by 3dog
3.76 LSD goes 0-60 faster than stock by about a half a second, plus better traction as both rear wheels get power
TC goes 0-60 faster than stock by about a half a second
Together you don't get a full second faster 0-60.
It comes out to about .08 second faster than stock, which will put you in the low 5 second range.
In order to go faster than that you need a Turbo or Supercharger.
You can do either or both.
Ivan
3dog
TC goes 0-60 faster than stock by about a half a second
Together you don't get a full second faster 0-60.
It comes out to about .08 second faster than stock, which will put you in the low 5 second range.
In order to go faster than that you need a Turbo or Supercharger.
You can do either or both.
Ivan
3dog
Second question - does the dragon TC make your car idle at a higher rpm??
02-04-05, 08:56 AM
#55
I contacted Steve G., He said the last time he tried to order the Supra LSD he was told they were discontinued That latest P/N does go to the Supra LSD.
. Steve says it list for $2400.00, But he can sell it for $1779.00 if it is available.
The reason I considered the TRD LSD ,I wanted it for the regular benefits of a LSD- wet & dirt roads, cornering and slick roads if I'm caught in .the snow. And most of all, if i get a chance to add FI to to the motor. I figured the 3.27 gearing would be a little better than the 3.76 w/ Fi.
. Steve says it list for $2400.00, But he can sell it for $1779.00 if it is available.
The reason I considered the TRD LSD ,I wanted it for the regular benefits of a LSD- wet & dirt roads, cornering and slick roads if I'm caught in .the snow. And most of all, if i get a chance to add FI to to the motor. I figured the 3.27 gearing would be a little better than the 3.76 w/ Fi.
Last edited by GILLEXUS; 02-04-05 at 09:29 AM.
02-04-05, 09:32 AM
#56
Lexus Test Driver
Thread Starter
Originally Posted by GILLEXUS
I contacted Steve G., He said the last time he tried to order the Supra LSD he was told they were discontinued That latest P/N does go to the Supra LSD.
. Steve says it list for $2400.00, But he can sell it for $1779.00 if it is available.
The reason I considered the TRD LSD ,I wanted it for the regular benefits of a LSD- wet & dirt roads, cornering and slick roads if I'm caught in .the snow. And most of all, if i get a chance to add FI to to the motor. I figured the 3.27 gearing would be a little better than the 3.76 w/ Fi.
. Steve says it list for $2400.00, But he can sell it for $1779.00 if it is available.
The reason I considered the TRD LSD ,I wanted it for the regular benefits of a LSD- wet & dirt roads, cornering and slick roads if I'm caught in .the snow. And most of all, if i get a chance to add FI to to the motor. I figured the 3.27 gearing would be a little better than the 3.76 w/ Fi.
and there are other sellers like TM that are less than RMM. It pays to shop around
02-04-05, 10:01 AM
#57
Originally Posted by daleer
Is it OK to get the TC and 3.76 lsd if you're planning on going FI on a gs430? I read someone on this board state that you shouldn't go 3.76 lsd if you're FI for some reason. I'd think that the combo of FI, TC, and 3.76 lsd would be the fast as hell - anyone know why you wouldn't want to do all three??
Second question - does the dragon TC make your car idle at a higher rpm??
Second question - does the dragon TC make your car idle at a higher rpm??
and nop, the tc will not change the idle rpm
02-04-05, 10:02 AM
#58
Originally Posted by GILLEXUS
I contacted Steve G., He said the last time he tried to order the Supra LSD he was told they were discontinued That latest P/N does go to the Supra LSD.
. Steve says it list for $2400.00, But he can sell it for $1779.00 if it is available.
The reason I considered the TRD LSD ,I wanted it for the regular benefits of a LSD- wet & dirt roads, cornering and slick roads if I'm caught in .the snow. And most of all, if i get a chance to add FI to to the motor. I figured the 3.27 gearing would be a little better than the 3.76 w/ Fi.
. Steve says it list for $2400.00, But he can sell it for $1779.00 if it is available.
The reason I considered the TRD LSD ,I wanted it for the regular benefits of a LSD- wet & dirt roads, cornering and slick roads if I'm caught in .the snow. And most of all, if i get a chance to add FI to to the motor. I figured the 3.27 gearing would be a little better than the 3.76 w/ Fi.
he's a vendor here and he can get the supra tt lsd, i know someone who got it new from him
02-04-05, 11:31 AM
#59
Lexus Fanatic
Originally Posted by rominl
yes theoretically it's faster, but the problem is the gear ratio is so high, that the engine revs so fast and it hits the rev limiter when they shift. couple of peple here had that problem before.
and nop, the tc will not change the idle rpm
and nop, the tc will not change the idle rpm
02-04-05, 12:27 PM
#60
Originally Posted by rominl
email todd at todd@tmengineering.net
he's a vendor here and he can get the supra tt lsd, i know someone who got it new from him
he's a vendor here and he can get the supra tt lsd, i know someone who got it new from him
Last edited by GILLEXUS; 02-05-05 at 07:10 AM.