Question for those with proper LSDs installed

DriftKr6l · 10-03-2013, 08:54 AM

In turns when accelerating and letting off the gas, do you guys feel that the car is taking a different line?

After installing my KAAZ I feel the car changing lines when I accelerate and let go. Not sure if it is just the soft bushes in all the control arms, or something else is up.

Apollo8642 · 10-03-2013, 10:17 AM

Is your KAAZ a a 2way 1.5way or 1way

Your info is sorta vauge, but it sounds like you're diff is opening up. Have you been changing your diff fluid as you should be, what kind of fluids are you running, how many miles are on it, how much has it been tracked, and drifted?

DriftKr6l · 10-03-2013, 10:22 AM

nah, its not that. iTs a 2 way at 80% lock, and its brand new, 1000 street miles if that.

Rusty · 10-03-2013, 11:59 AM

When in a turn. Give it gas and it wants to go straight? Lift off the gas and it pulls in to the turn?

DriftKr6l · 10-03-2013, 12:09 PM

Quote:

Originally Posted by Rusty

When in a turn. Give it gas and it wants to go straight? Lift off the gas and it pulls in to the turn?

Yeah, that's what i recall. Ill verify after work again.

Chuck33079 · 10-03-2013, 12:18 PM

Quote:

Originally Posted by Rusty

When in a turn. Give it gas and it wants to go straight? Lift off the gas and it pulls in to the turn?

Isn't that what you want it to do?

DriftKr6l · 10-03-2013, 01:26 PM

Quote:

Originally Posted by Chuck33079

Isn't that what you want it to do?

Car is not suppose to change how it tracks in a turn unless you break traction.

Chuck33079 · 10-03-2013, 01:31 PM

Quote:

Originally Posted by DriftKr6l

Car is not suppose to change how it tracks in a turn unless you break traction.

A car will absolutely change how it tracks in a turn with throttle, even if you've still got traction.

Chuck33079 · 10-03-2013, 01:58 PM

Every car I've ever owned wanted to tuck in when you lift, regardless of diff type or drivetrain layout. Maybe I'm misunderstanding the question?

DriftKr6l · 10-03-2013, 02:03 PM

Weird, cuz every car i've owned never did this. Including a 240sx with the same KAAZ diff.

It feels like rear wheel steering.

Shamu · 10-04-2013, 05:23 PM

Quote:

Originally Posted by DriftKr6l

Weird, cuz every car i've owned never did this. Including a 240sx with the same KAAZ diff.

It feels like rear wheel steering.

I use accelrator and brakes to turn my cars? Perhaps this is first car you have had with enough power and stick to move with weight transfer?

You may just need to do some suspension tuning to better accomodate the LSD. Tires (amount of stagger) Spring rates, swaybars, damper settings, toe and camber can all impact how your LSD works too. Sounds like LSD is doing exactly what it is supposed to do.

DriftKr6l · 10-03-2013, 02:05 PM

I'm convinced that its the soft bushings that are causing geometry changes wile modulating throttle input, but I wanted your guys to chime in.

synolimit · 10-03-2013, 05:01 PM

I have no idea but I've seen vids of cars on dyno's and the rear wheel moves insane amounts when under load. Soft bushings will totally change things. Guys also change out eccentric bolts for solid ones because high load can throw off camber and toe when the bolt slips. Me being me I want everything solid to a point so if you can drive, I'm sure things are changing if everything's OEM.

http://m.youtube.com/watch?v=KgZ4ZBH...%3DKgZ4ZBHdx98

DriftKr6l · 10-04-2013, 06:39 PM

nice vid.

Yeah, I figure its the soft bushings.

Im gonna install my gopro facing the rear wheel and under the car and go drive around, Im curious which contorl arm moves the most.

Quote:

Originally Posted by synolimit

I have no idea but I've seen vids of cars on dyno's and the rear wheel moves insane amounts when under load. Soft bushings will totally change things. Guys also change out eccentric bolts for solid ones because high load can throw off camber and toe when the bolt slips. Me being me I want everything solid to a point so if you can drive, I'm sure things are changing if everything's OEM.

http://m.youtube.com/watch?v=KgZ4ZBH...%3DKgZ4ZBHdx98

takjak2 · 10-03-2013, 05:20 PM

Sounds normal to me. A little bit of lift off oversteer never hurt anyone. Except Porsches.

10-03-2013, 08:54 AM	#1 (permalink)
DriftKr6l Base Member Join Date: Mar 2013 Location: Elk Grove Vlg, Ill Posts: 166 Drives: 09 370Z, 10 GT-R Rep Power: 13	Question for those with proper LSDs installed In turns when accelerating and letting off the gas, do you guys feel that the car is taking a different line? After installing my KAAZ I feel the car changing lines when I accelerate and let go. Not sure if it is just the soft bushes in all the control arms, or something else is up.

10-03-2013, 11:59 AM	#4 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 69 Posts: 35,380 Drives: 2011 Nismo GM 6M Rep Power: 2684438	When in a turn. Give it gas and it wants to go straight? Lift off the gas and it pulls in to the turn? __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

10-03-2013, 01:58 PM	#9 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	Every car I've ever owned wanted to tuck in when you lift, regardless of diff type or drivetrain layout. Maybe I'm misunderstanding the question? __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

10-03-2013, 05:01 PM	#13 (permalink)
synolimit A True Z Fanatic Join Date: May 2013 Location: Columbus, OH Posts: 5,051 Drives: 2013 Silver 370z Rep Power: 3389	I have no idea but I've seen vids of cars on dyno's and the rear wheel moves insane amounts when under load. Soft bushings will totally change things. Guys also change out eccentric bolts for solid ones because high load can throw off camber and toe when the bolt slips. Me being me I want everything solid to a point so if you can drive, I'm sure things are changing if everything's OEM. http://m.youtube.com/watch?v=KgZ4ZBH...%3DKgZ4ZBHdx98 __________________ 13 370z- Last edited by synolimit; 10-03-2013 at 05:03 PM.

10-03-2013, 05:20 PM	#15 (permalink)
takjak2 A True Z Fanatic Join Date: Feb 2011 Location: Sterling, VA Posts: 1,922 Drives: Legit Racecar 370Z Rep Power: 143	Sounds normal to me. A little bit of lift off oversteer never hurt anyone. Except Porsches. __________________ Mods \| Stuff \| Things \| Seat Time \| Nismo facebook.com/TeamSparrowSpeed

10-03-2013, 10:17 AM	#2 (permalink)
Apollo8642 Base Member Join Date: Feb 2012 Location: Oregon Posts: 187 Drives: 09 370Z Nismo #280 Rep Power: 14	Is your KAAZ a a 2way 1.5way or 1way Your info is sorta vauge, but it sounds like you're diff is opening up. Have you been changing your diff fluid as you should be, what kind of fluids are you running, how many miles are on it, how much has it been tracked, and drifted?

10-03-2013, 10:22 AM	#3 (permalink)
DriftKr6l Base Member Join Date: Mar 2013 Location: Elk Grove Vlg, Ill Posts: 166 Drives: 09 370Z, 10 GT-R Rep Power: 13	nah, its not that. iTs a 2 way at 80% lock, and its brand new, 1000 street miles if that.

10-03-2013, 02:03 PM	#10 (permalink)
DriftKr6l Base Member Join Date: Mar 2013 Location: Elk Grove Vlg, Ill Posts: 166 Drives: 09 370Z, 10 GT-R Rep Power: 13	Weird, cuz every car i've owned never did this. Including a 240sx with the same KAAZ diff. It feels like rear wheel steering.

10-03-2013, 02:05 PM	#12 (permalink)
DriftKr6l Base Member Join Date: Mar 2013 Location: Elk Grove Vlg, Ill Posts: 166 Drives: 09 370Z, 10 GT-R Rep Power: 13	I'm convinced that its the soft bushings that are causing geometry changes wile modulating throttle input, but I wanted your guys to chime in.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Proper way to Lower the Z	SR1	Brakes & Suspension	12	11-06-2012 07:09 PM
Proper Break-in Procedures	Robs370	Nissan 370Z Warranty / Scheduled Maintenance / Servicing / Repairs	8	08-01-2012 01:21 AM
Proper way to down shift?	Noc	Nissan 370Z General Discussions	43	04-28-2011 09:20 AM
How do you do a proper dyno comparison?	UFreefer	Tuning	3	04-21-2010 09:23 PM