FRS/BRZ VS. VELOSTER :p - Page 12 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

dsgerbc · 02-27-2012, 12:34 PM

Quote:

Originally Posted by maxeveland

not if no ones around

If 'there's no one around' - you're the only car on the road and if the cop hears you squealing tires in many states you'll get a ticket. In a couple of states it will come with misdemeanor charge, expensive fine and a bunch of points on license.

serialk11r · 02-27-2012, 05:56 PM

Quote:

Originally Posted by no_name

I know it doesn't make much difference on FWD, but a RWD car without an LSD is really painful to drive in the winter. If you're trying to just start moving and break traction with one wheel you're not going anywhere.

Wait I thought traction control takes care of that right? Doesn't it brake the slipping wheel to send power to the other wheel? I imagine it's not set up as well as say McLaren's "brake steer" system, but it should get the job done right?

WingsofWar · 02-27-2012, 07:15 PM

Quote:

Originally Posted by serialk11r

Wait I thought traction control takes care of that right? Doesn't it brake the slipping wheel to send power to the other wheel? I imagine it's not set up as well as say McLaren's "brake steer" system, but it should get the job done right?

TC doesn't send power to any wheel..it limits power to the wheels to control slip.

RWD w/ open Diff in slippery road conditions sucks, even if the TC kicks in your not effectively gaining any additional traction during an emergency.

RWD w/ LSD has an effective control of available traction, and matted with TC. Most computers can control the available traction dynamically.

dsgerbc · 02-27-2012, 07:22 PM

Quote:

Originally Posted by serialk11r

Wait I thought traction control takes care of that right? Doesn't it brake the slipping wheel to send power to the other wheel? I imagine it's not set up as well as say McLaren's "brake steer" system, but it should get the job done right?

Not really. Electronic/software "eLSD"implementation based on brake application can't send much power to the wheel with traction. It will help if you're stuck on your all-seasons on a half-inch of dusting, but not much beyond that.

Quote:

Originally Posted by WingsofWar

TC doesn't send power to any wheel.

He's not talking about TC. He's talking about software implementations that will brake one wheel that is slipping just enough to send some power to the other rear wheel. Like some new Beemers do. SoftLSD or smth.

miata · 02-27-2012, 09:15 PM

In an open diff if you hold one wheel the other will spin twice as fast as when both wheels are spinning.

Spaceywilly · 02-27-2012, 10:46 PM

Quote:

Originally Posted by miata

In an open diff if you hold one wheel the other will spin twice as fast as when both wheels are spinning.

You brake the wheel that is spinning. It gives the other wheel something to push against so it can move again. Torque in an open diff goes to the path of least resistance.

dsgerbc · 02-28-2012, 12:06 AM

^ It does not take much in terms of brake torque to stop the spinning wheel completely (and you need to apply even less not to stall the engine) . And that's as much torque as this softLSD will send to the wheel with grip. If it's enough to get moving - fine.

miata · 02-28-2012, 12:08 AM

I agree. electronic faux diffs work. Just the downside is it wears down the brakes and heats them up also. That would be bad for the track use.

no_name · 02-28-2012, 11:58 AM

Quote:

Originally Posted by serialk11r

Wait I thought traction control takes care of that right? Doesn't it brake the slipping wheel to send power to the other wheel? I imagine it's not set up as well as say McLaren's "brake steer" system, but it should get the job done right?

I was speaking from the perspective of not having any traction control - old open diff AE86. I got stuck in the snow more times than I can count. My current car doesn't have TC either but just being FWD helps. Actually I've never owned a car with TC or ABS.

Spaceywilly · 02-28-2012, 12:46 PM

Quote:

Originally Posted by no_name

I was speaking from the perspective of not having any traction control - old open diff AE86. I got stuck in the snow more times than I can count. My current car doesn't have TC either but just being FWD helps. Actually I've never owned a car with TC or ABS.

If you apply the ebrake lightly in an open-diff car (not enough to lock up both wheels, but enough to give the wheel that has traction something to push against) it can have the same effect as the "e-diff" and help get you unstuck.

miata · 02-28-2012, 12:58 PM

That's a good idea.

Kunzite · 02-28-2012, 01:30 PM

I used it with my old car, it definitely works.
That was one of the few FWD cars that could do this trick

tranzformer · 02-29-2012, 06:38 PM

Quote:

Originally Posted by miata

That's a good idea.

Miata, check your pm. Sent you a message.

chate · 03-01-2012, 01:11 PM

if the veloster turbo really is 21k like rumored, what price would the FRS need to hit to stay competitive? How much more would you pay?

02-27-2012, 09:15 PM	#159
miata Senior Member Join Date: Jan 2012 Drives: 2006 Miata 5 spd Location: wa Posts: 300 Thanks: 5 Thanked 7 Times in 4 Posts Mentioned: 1 Post(s)	In an open diff if you hold one wheel the other will spin twice as fast as when both wheels are spinning. __________________ 2006 Miata

02-28-2012, 12:08 AM	#162
miata Senior Member Join Date: Jan 2012 Drives: 2006 Miata 5 spd Location: wa Posts: 300 Thanks: 5 Thanked 7 Times in 4 Posts Mentioned: 1 Post(s)	I agree. electronic faux diffs work. Just the downside is it wears down the brakes and heats them up also. That would be bad for the track use. __________________ 2006 Miata

02-28-2012, 12:58 PM	#165
miata Senior Member Join Date: Jan 2012 Drives: 2006 Miata 5 spd Location: wa Posts: 300 Thanks: 5 Thanked 7 Times in 4 Posts Mentioned: 1 Post(s)	That's a good idea. __________________ 2006 Miata

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dsgerbc Senior Member Join Date: Jan 2012 Drives: BRZ(sold), STI Location: A2, MI Posts: 1,915 Thanks: 176 Thanked 419 Times in 241 Posts Mentioned: 11 Post(s)	^ It does not take much in terms of brake torque to stop the spinning wheel completely (and you need to apply even less not to stall the engine) . And that's as much torque as this softLSD will send to the wheel with grip. If it's enough to get moving - fine.

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Kunzite Senior Member Join Date: Dec 2011 Drives: Toyota Auris Location: Romania Posts: 205 Thanks: 26 Thanked 16 Times in 11 Posts Mentioned: 0 Post(s)	I used it with my old car, it definitely works. That was one of the few FWD cars that could do this trick

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chate Pharmasaurus Magnificus Join Date: Nov 2011 Drives: 2013 Scion FR-S Location: Orange County,CA Posts: 597 Thanks: 37 Thanked 123 Times in 67 Posts Mentioned: 1 Post(s)	if the veloster turbo really is 21k like rumored, what price would the FRS need to hit to stay competitive? How much more would you pay?

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