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JB74 Traction Improvements
28 Jun 2023 07:43 #249648
by 300bhpton
The All Grip Pro traction control system isn’t bad. You generally just need to keep a smooth steady throttle. But I admit it can be easy to let the revs rise with the wheel spin.
Ultimately traction control needs some slip and wheel spin in order to activate and work.
Full locking diffs would remove the wheel spin. But are generally quite pricey for a full install. You also only get benefit when they are locked. But you loose the ability to turn as well as normal. Lockers are great for the right purpose. But IMO are a bit specialised and may not suit every situation.
An ATB (automatic torque biasing limited slip differential) should offer improved performance over stock. As it will require far less traction control braking to activate. The diffs would work well without traction control. But should almost simulate a full locker when combined with it. But you’ll retain mostly good steering and turning circle. They are usually cheaper to buy and install. And they work all the time. Even on the road. Making them much more versatile.
Other things to consider are suspension. The ability to keep all 4 wheels on the ground will reduce the need for traction aids such as fancy diffs or traction control. And of course the right tyres for the terrain.
Lower gearing could improve crawling. But would likely still need revs to some extent. And an automatic gearbox does make the standard TCS easier to deploy. The Jimny with a manual can be stalled on tricky low speed technical terrain. But the traction control will fundamentally work the same and still require the same wheel differential speeds to activate, regardless of gearbox type.
Replied by 300bhpton on topic JB74 Traction Improvements
What sort of terrain have you driven so far?2022 JB74v K15B Engine M13AA Manual Trans
I want to increase my prowlness while off road. It seams to me that the stock factory setup relys on high RPMs and momentum to get through the tough spots. My preferred technique is to use fences and deliberate torque with controlled wheel spin. What has worked for other JB74s? Would I be gaining anything by installing Limited Slip Differentials vs. the OEM AllGrip Pro system? Interested in reading the discussion on this topic.
The All Grip Pro traction control system isn’t bad. You generally just need to keep a smooth steady throttle. But I admit it can be easy to let the revs rise with the wheel spin.
Ultimately traction control needs some slip and wheel spin in order to activate and work.
Full locking diffs would remove the wheel spin. But are generally quite pricey for a full install. You also only get benefit when they are locked. But you loose the ability to turn as well as normal. Lockers are great for the right purpose. But IMO are a bit specialised and may not suit every situation.
An ATB (automatic torque biasing limited slip differential) should offer improved performance over stock. As it will require far less traction control braking to activate. The diffs would work well without traction control. But should almost simulate a full locker when combined with it. But you’ll retain mostly good steering and turning circle. They are usually cheaper to buy and install. And they work all the time. Even on the road. Making them much more versatile.
Other things to consider are suspension. The ability to keep all 4 wheels on the ground will reduce the need for traction aids such as fancy diffs or traction control. And of course the right tyres for the terrain.
Lower gearing could improve crawling. But would likely still need revs to some extent. And an automatic gearbox does make the standard TCS easier to deploy. The Jimny with a manual can be stalled on tricky low speed technical terrain. But the traction control will fundamentally work the same and still require the same wheel differential speeds to activate, regardless of gearbox type.
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