LSD Question - Toyota Yaris Forums

PHXDEMON · 05-03-2009, 12:28 AM

When you burn out or lose traction in a straight line do both your tires leave marks? My coworker insists I have an LSD in my car based off the fact that both wheels spin but I don't think I do because the previous owner didn't mention anything about it and I lose a lot of traction on some bumps when I am turning.

PETERPOOP · 05-03-2009, 12:33 AM

i have no lsd and leave two tire marks. jack up the front, turn on the car, hit the gas.

PHXDEMON · 05-03-2009, 12:41 AM

Quote:

Originally Posted by PETERPOOP

i have no lsd and leave two tire marks. jack up the front, turn on the car, hit the gas.

That's what I figured

PETERPOOP · 05-03-2009, 12:48 AM

I also get lots of hop during WOT on a turn or bumpy roads. I hate it.

supmet · 05-03-2009, 12:50 AM

Your friend needs to lay off the LSD

SilverBack · 05-03-2009, 12:53 AM

Nice!

SpeedwayPerformance · 05-04-2009, 03:19 AM

Jack your car up and rotate one of the front wheels by hand.. If the wheel on the other side starts turning in the opposite direction.. you have a open diff.

Your car likely has a open diff. on such low powered cars the advantage of running a LSD is negligible unless your doing a lot of track racing or drive the car in a place where there is lots of snow and ice in the winter.

PHXDEMON · 05-04-2009, 07:11 PM

Quote:

Originally Posted by SpeedwayPerformance

Jack your car up and rotate one of the front wheels by hand.. If the wheel on the other side starts turning in the opposite direction.. you have a open diff.

Your car likely has a open diff. on such low powered cars the advantage of running a LSD is negligible unless your doing a lot of track racing or drive the car in a place where there is lots of snow and ice in the winter.

Thanks for the input If the car had an LSD would they both spin the same direction or just lock up?

AlexNet0 · 05-04-2009, 07:45 PM

Quote:

Jack your car up and rotate one of the front wheels by hand.. If the wheel on the other side starts turning in the opposite direction.. you have a open diff

I thought this only applied to auto trans

cali yaris · 05-04-2009, 08:02 PM

no snow and ice here, but I can feel the difference in traction accelerating through hard corners and launching -- both on the track AND the street.

CASTREX · 05-04-2009, 08:35 PM

Hit the gas on some grass or loose gravel and see if both tires keep spinning

Tamago · 05-04-2009, 08:57 PM

to the OP, you've only been lucky with the two tires spinning.

an open diff is death for an autocrosser/road racer.

PHXDEMON · 05-04-2009, 10:12 PM

Quote:

Originally Posted by Tamago

to the OP, you've only been lucky with the two tires spinning.

an open diff is death for an autocrosser/road racer.

Haven't done any autocrossing yet (df210's are way to soft) but I do like to take turns fast in my daily driving. Eventually I want to invest in a LSD and coilovers

Loren · 05-04-2009, 11:08 PM

You don't have an LSD in your Yaris unless you paid the bucks and put one in it yourself.

But, with helical LSD's (which are available for the Yaris), the old-school "jack up the car" tests don't always work as people think they should. Had this problem on Miatas. The Torsen behaves like an open diff when the car is on a lift.

Here's a sure-fire way to tell if you have an open diff: Put one wheel on dry asphalt and the other one in the dirt. Dump the clutch and see what happens. If you sit there and dig a hole on the dirt side, you have an open diff. If you have LSD, you'll move ahead smartly as torque is transferred to the wheel that is not slipping.

PHXDEMON · 05-04-2009, 11:58 PM

Quote:

Originally Posted by Loren

You don't have an LSD in your Yaris unless you paid the bucks and put one in it yourself.

But, with helical LSD's (which are available for the Yaris), the old-school "jack up the car" tests don't always work as people think they should. Had this problem on Miatas. The Torsen behaves like an open diff when the car is on a lift.

Here's a sure-fire way to tell if you have an open diff: Put one wheel on dry asphalt and the other one in the dirt. Dump the clutch and see what happens. If you sit there and dig a hole on the dirt side, you have an open diff. If you have LSD, you'll move ahead smartly as torque is transferred to the wheel that is not slipping.

Gott go find some dirt

05-03-2009, 12:28 AM	#1
PHXDEMON View User's Garage Drives: 2007 Red Liftback Join Date: Oct 2008 Location: Phoenix, AZ Posts: 885	LSD Question When you burn out or lose traction in a straight line do both your tires leave marks? My coworker insists I have an LSD in my car based off the fact that both wheels spin but I don't think I do because the previous owner didn't mention anything about it and I lose a lot of traction on some bumps when I am turning.

05-03-2009, 12:53 AM	#6
SilverBack Joey View User's Garage Drives: '14 Scion xD 5-speed Join Date: Oct 2008 Location: El Monte, Ca Posts: 3,529	Nice! __________________ Formerly owned Met-Met. '07 Yaris LB 5-speed. A forum post should be like a skirt: Long enough to cover the subject but short enough to keep things interesting. "I don't have an anger problem. I have an idiot problem." -Hank Hill

05-04-2009, 08:02 PM	#10
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	no snow and ice here, but I can feel the difference in traction accelerating through hard corners and launching -- both on the track AND the street. __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

05-04-2009, 11:08 PM	#14
Loren What? Drives: 2007 Yaris LB Join Date: Nov 2008 Location: Safety Harbor, FL Posts: 1,006	You don't have an LSD in your Yaris unless you paid the bucks and put one in it yourself. But, with helical LSD's (which are available for the Yaris), the old-school "jack up the car" tests don't always work as people think they should. Had this problem on Miatas. The Torsen behaves like an open diff when the car is on a lift. Here's a sure-fire way to tell if you have an open diff: Put one wheel on dry asphalt and the other one in the dirt. Dump the clutch and see what happens. If you sit there and dig a hole on the dirt side, you have an open diff. If you have LSD, you'll move ahead smartly as torque is transferred to the wheel that is not slipping. __________________ ----------------------- Loren@InvisibleSun.org -----------------------

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05-03-2009, 12:33 AM	#2
PETERPOOP View User's Garage Drives: 08 white liftback Join Date: Oct 2008 Location: Oahu Posts: 3,674	i have no lsd and leave two tire marks. jack up the front, turn on the car, hit the gas.

05-03-2009, 12:48 AM	#4
PETERPOOP View User's Garage Drives: 08 white liftback Join Date: Oct 2008 Location: Oahu Posts: 3,674	I also get lots of hop during WOT on a turn or bumpy roads. I hate it.

05-03-2009, 12:50 AM	#5
supmet Banned View User's Garage Drives: 2007 4 Door Yaris Join Date: Jan 2009 Location: Southern California Posts: 1,357	Your friend needs to lay off the LSD

05-04-2009, 03:19 AM	#7
SpeedwayPerformance Drives: Race Prepped Join Date: Apr 2009 Location: Edmonton, Alberta, Canada Posts: 10	Jack your car up and rotate one of the front wheels by hand.. If the wheel on the other side starts turning in the opposite direction.. you have a open diff. Your car likely has a open diff. on such low powered cars the advantage of running a LSD is negligible unless your doing a lot of track racing or drive the car in a place where there is lots of snow and ice in the winter.

05-04-2009, 08:35 PM	#11
CASTREX Who said Yaris was slow? View User's Garage Drives: Yaris T-Sport 2008 Join Date: Nov 2006 Location: Costa Rica Posts: 1,287	Hit the gas on some grass or loose gravel and see if both tires keep spinning