best steps to make a good handling car??
#47
03-20-2009, 05:47 PM
Actually he said we had LSD. I'm sure he's aware that it's a VLSD with a power transfer of about 20-30%. He didn't mention the total amount being transfered, only that it was. And his statement is still true and valid.
I don't see how his explaination is contrary to the definition of how our VLSD works:
I don't see how his explaination is contrary to the definition of how our VLSD works:
Viscous
S13 Viscous LSDThe viscous type is generally simpler because it relies on hydrodynamic friction from fluids with high viscosity. Silicone-based oils are often used. Here, a cylindrical chamber of fluid filled with a stack of perforated discs rotates with the normal motion of the output shafts. The inside surface of the chamber is coupled to one of the driveshafts, and the outside coupled to the differential carrier. Half of the discs are connected to the inner, the other half to the outer, alternating inner/outer in the stack. Differential motion forces the interleaved discs to move through the fluid against each other. In some viscous couplings when speed is maintained the fluid will accumulate heat due to friction. This heat will cause the fluid to expand, and expand the coupler causing the discs to be pulled together resulting in a non-viscous plate to plate friction and a dramatic drop in speed difference. This is known as the hump phenomenon and it allows the side of the coupler to gently lock.
S13 Viscous LSDThe viscous type is generally simpler because it relies on hydrodynamic friction from fluids with high viscosity. Silicone-based oils are often used. Here, a cylindrical chamber of fluid filled with a stack of perforated discs rotates with the normal motion of the output shafts. The inside surface of the chamber is coupled to one of the driveshafts, and the outside coupled to the differential carrier. Half of the discs are connected to the inner, the other half to the outer, alternating inner/outer in the stack. Differential motion forces the interleaved discs to move through the fluid against each other. In some viscous couplings when speed is maintained the fluid will accumulate heat due to friction. This heat will cause the fluid to expand, and expand the coupler causing the discs to be pulled together resulting in a non-viscous plate to plate friction and a dramatic drop in speed difference. This is known as the hump phenomenon and it allows the side of the coupler to gently lock.
#48
03-20-2009, 05:51 PM
Actually he said we had LSD. I'm sure he's aware that it's a VLSD with a power transfer of about 20-30%. He didn't mention the total amount being transfered, only that it was. And his statement is still true and valid.
I don't see how his explaination is contrary to the definition of how our VLSD works:
I don't see how his explaination is contrary to the definition of how our VLSD works:
#49
03-20-2009, 06:08 PM
Please inform all of us how the VLSD isn't a "true" LSD in technical terms. I've posted the technical definition of VLSD above.
If it doesn't "necessarily" help, please definate that more clearly.
I wonder why Infinti decided to put offer the LSD option in their sports tuned versions? That's an expensive marketing ploy if it's just for straight line traction (given that the G35 is marketed/designed to square off with the then reigning handling benchmark for it's class, the 330i (which also offers a VLSD type differential)
Nissan did reconize the limitations of the VLSD and went with a Torsen type. At least for the new maximas they did.
If it doesn't "necessarily" help, please definate that more clearly.
I wonder why Infinti decided to put offer the LSD option in their sports tuned versions? That's an expensive marketing ploy if it's just for straight line traction (given that the G35 is marketed/designed to square off with the then reigning handling benchmark for it's class, the 330i (which also offers a VLSD type differential)
Nissan did reconize the limitations of the VLSD and went with a Torsen type. At least for the new maximas they did.
#51
03-20-2009, 06:23 PM
#52
03-20-2009, 06:27 PM
Please inform all of us how the VLSD isn't a "true" LSD in technical terms. I've posted the technical definition of VLSD above.
If it doesn't "necessarily" help, please definate that more clearly.
I wonder why Infinti decided to put offer the LSD option in their sports tuned versions? That's an expensive marketing ploy if it's just for straight line traction (given that the G35 is marketed/designed to square off with the then reigning handling benchmark for it's class, the 330i (which also offers a VLSD type differential)
Nissan did reconize the limitations of the VLSD and went with a Torsen type. At least for the new maximas they did.
If it doesn't "necessarily" help, please definate that more clearly.
I wonder why Infinti decided to put offer the LSD option in their sports tuned versions? That's an expensive marketing ploy if it's just for straight line traction (given that the G35 is marketed/designed to square off with the then reigning handling benchmark for it's class, the 330i (which also offers a VLSD type differential)
Nissan did reconize the limitations of the VLSD and went with a Torsen type. At least for the new maximas they did.
#53
03-20-2009, 06:31 PM
#54
03-20-2009, 06:42 PM
And Nissan/Infiniti's VLSD doesn't accomplish this? Especially in the spirit of the other gentlemen's reply? If you are now lumping all LSD type differentials together and stating they have the "point" of keeping proper traction thoughout the turn, wouldn't that be more to the side of agreeing with me vs not agreeing?
#55
03-20-2009, 06:47 PM
Actually I believe a clutch type will eventually operate like an open diff when the clutches wear out. But we aren't necessarily talking about the pros/cons of each type's operation.
Last edited by Jeff92se; 03-20-2009 at 06:52 PM.
#56
03-20-2009, 06:51 PM
#58
03-21-2009, 08:44 AM
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