lsd front diff patrol?
Posted: Fri Mar 05, 2010 7:59 pm
a guy told me that some patrols come out with a front lsd i think in the st ive never heard anything this true or?
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lsd front diff patrol?
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Posted: Fri Mar 05, 2010 8:17 pm
IIRC you can fit the rear Navara LSD (31 spline H233) up front. Rear diff is 33 spine.
Re: lsd front diff patrol?
Posted: Fri Mar 05, 2010 8:20 pm
No. I believe ADRs prohibit front LSDs, due to their ability to compromise steering.GQPATR0L wrote:a guy told me that some patrols come out with a front lsd i think in the st ive never heard anything this true or?
Doesn't stop people doing it.
Posted: Sat Mar 06, 2010 12:27 am
But does it even effect your steering with hubs out. So what does it matter to adr. Correct me if im wrong,
If im wrong please explain so i can learn how it effects it while been in 2 wheel drive.
If im wrong please explain so i can learn how it effects it while been in 2 wheel drive.
Posted: Sat Mar 06, 2010 12:34 am
seeing as its a 4wd wouldnt it have to be compliant whilst in 4wd as well?
Posted: Sat Mar 06, 2010 11:26 am
its been discussed a yiilion times.. search nissan section bout why they are bad idea
Re: lsd front diff patrol?
Posted: Sat Mar 06, 2010 11:34 am
Plenty of FWD cars came with LSD's.-Scott- wrote:No. I believe ADRs prohibit front LSDs, due to their ability to compromise steering.GQPATR0L wrote:a guy told me that some patrols come out with a front lsd i think in the st ive never heard anything this true or?
Doesn't stop people doing it.
Re: lsd front diff patrol?
Posted: Sat Mar 06, 2010 11:44 am
Clutch or viscous?Slunnie wrote:Plenty of FWD cars came with LSD's.-Scott- wrote:No. I believe ADRs prohibit front LSDs, due to their ability to compromise steering.GQPATR0L wrote:a guy told me that some patrols come out with a front lsd i think in the st ive never heard anything this true or?
Doesn't stop people doing it.
Either way, my asnwer was primarily intended to say that I don't believe Patrols ever came from the factory with a front LSD.
Posted: Sat Mar 06, 2010 5:37 pm
Hmmm, I thought that you said the ADR's prohibit front LSD's. 
This is from SAE
This is from SAE
Speed-sensing Limited-Slip Differentials (LSD) such as Viscous Couplings (VC) are becoming major players in Front-Wheel Drive (FWD) applications. Traction Control Systems (TCS) which control the wheel slip by influencing the engine torque output and/or actuating the brakes are also introduced to the FWD market in growing numbers. A few applications for torque-sensing LSD's have recently entered the market. All of these devices are known mainly for their traction improvements. However, all systems have demonstrated that they also positively influence handling and stability even under normal driving conditions.
This paper presents a series of proving ground tests which investigate the effects of speed-sensing and torque-sensing LSD's as well as TCS on traction, vehicle stability, handling and torque-steer. Factors affecting torque-steer are described and key vehicle design parameters are identified which greatly influence both the application and compatibility of LSD with FWD.
Test results show the differences of these devices concerning their traction improvement capability and their influences on acceleration, throttle-off maneuvers, braking and self-steering behavior during cornering. The paper also reports results concerning the compatibility of these LSD's with Antilock Braking Systems (ABS). It is also shown how LSD and TCS complement each other when combined in a vehicle
Posted: Sat Mar 06, 2010 6:08 pm
You are correct. I was wrong, through not being specific enough.Slunnie wrote:Hmmm, I thought that you said the ADR's prohibit front LSD's.
This is from SAE
Speed-sensing Limited-Slip Differentials (LSD) such as Viscous Couplings (VC) are becoming major players in Front-Wheel Drive (FWD) applications. Traction Control Systems (TCS) which control the wheel slip by influencing the engine torque output and/or actuating the brakes are also introduced to the FWD market in growing numbers. A few applications for torque-sensing LSD's have recently entered the market. All of these devices are known mainly for their traction improvements. However, all systems have demonstrated that they also positively influence handling and stability even under normal driving conditions.
This paper presents a series of proving ground tests which investigate the effects of speed-sensing and torque-sensing LSD's as well as TCS on traction, vehicle stability, handling and torque-steer. Factors affecting torque-steer are described and key vehicle design parameters are identified which greatly influence both the application and compatibility of LSD with FWD.
Test results show the differences of these devices concerning their traction improvement capability and their influences on acceleration, throttle-off maneuvers, braking and self-steering behavior during cornering. The paper also reports results concerning the compatibility of these LSD's with Antilock Braking Systems (ABS). It is also shown how LSD and TCS complement each other when combined in a vehicle
I believe ramp-loading clutch type LSDs are not approved for steering axles, due to their ability to change the amount of slip as torque changes.
http://www.streettuned.com.au/index.php ... ductId=470NISMO - Front LSD - Primera/Pulsar/NX Coupe (1.5 WAY)
Location: >Drivetrain>Differentials>NISMO - Front LSD - Primera/Pulsar/NX Coupe (1.5 WAY)
Product Information
This Nismo Clutch Type LSD will replace your factory differential with a 1.5 way clutch type.
A must have for every racer.
Benefits
* More grip to leave your competition for dead
* Increased stability
* Locking effect caused by engine braking is decreased
Application List
* Nissan NX Coupe/Sentra (B13)
* Nissan Pulsar (N14, N15)
* Nissan Primera (P10, P11)
RS5F32A transaxle only
Race use only and is not certified for use on highways and public roads.
Why would a product like this be "not certified for use on highways and public roads"?
Posted: Sat Mar 06, 2010 9:32 pm
Good question. It says clutch but it doesn't sound like a clutch LSD. This line makes me think that its very stiff race unit though and probably very untidy for road use.
* Locking effect caused by engine braking is decreased
Re: lsd front diff patrol?
Posted: Sun Mar 07, 2010 11:30 pm
In a full time 4wd it would.-Scott- wrote:No. I believe ADRs prohibit front LSDs, due to their ability to compromise steering.GQPATR0L wrote:a guy told me that some patrols come out with a front lsd i think in the st ive never heard anything this true or?
lsd
Posted: Wed Mar 10, 2010 6:38 am
In short NO nissan never released a 4x4 with a lsd in the front.
Re: lsd front diff patrol?
Posted: Fri Mar 12, 2010 8:44 pm
I doubt this due to the number of front wheel drives that have LSD and have for years. The biggest problem is the smaller Navara clutch plates break. Have seen two break within 2 years of fitting.-Scott- wrote:No. I believe ADRs prohibit front LSDs, due to their ability to compromise steering.GQPATR0L wrote:a guy told me that some patrols come out with a front lsd i think in the st ive never heard anything this true or?
Doesn't stop people doing it.
Joel