Slippery when wet - lsd slip modifier
Discussion
I'd known for quite some time my slip diff needing the oil sorting out so earlier today whilst at Monkfish I askedd them to do it whilst they were servicing the car.
The short of it is this, its transformed the cars handling no end! Seriously just a little change of oil has resulted in a leap in handling and holding from the rear.
If you have any doubts about your diff get it done! It makes you wonder just how Vauxhall/Holden got this so wrong!
The short of it is this, its transformed the cars handling no end! Seriously just a little change of oil has resulted in a leap in handling and holding from the rear.
If you have any doubts about your diff get it done! It makes you wonder just how Vauxhall/Holden got this so wrong!
stigmundfreud said:
having driven the car so long with it as it was (stock) it really does make a great difference.
Hi Stig,
How old/how many miles is yours? What model?
I'm interested to hear since mine is around 18 months old, has 20,000 on the clock and I just wonder if it will be a benefit to me as well.....
And what has happened to the handling - why is it so much better?
(Frankly it is my front that is rubbish - tramlines so bad I can hardly hold on sometimes! And yes, this is with the Road Response Pack....)
Edited by anonymous-user on Sunday 27th April 21:14
Hi Steve its an 05 but built in 04, 35k on the clock.
The handing improved simply due to the way the diffs working. It pulls round corners with much better traction that I certainly notice and I don;t reallt push overly hard. Had the back end out round a junction it sometimes breaks free on even at low speeds (due to angle/surface) and the handling is so much more precise - precise is the only word I can give it just sharpens it up when under load
The handing improved simply due to the way the diffs working. It pulls round corners with much better traction that I certainly notice and I don;t reallt push overly hard. Had the back end out round a junction it sometimes breaks free on even at low speeds (due to angle/surface) and the handling is so much more precise - precise is the only word I can give it just sharpens it up when under load
gsxr750steve said:
stigmundfreud said:
having driven the car so long with it as it was (stock) it really does make a great difference.
Hi Stig,
How old/how many miles is yours? What model?
I'm interested to hear since mine is around 18 months old, has 20,000 on the clock and I just wonder if it will be a benefit to me as well.....
And what has happened to the handling - why is it so much better?
(Frankly it is my front that is rubbish - tramlines so bad I can hardly hold on sometimes! And yes, this is with the Road Response Pack....)
Seems the RRP is getting some negative comments.
To clear up, surely it is there to sharpen response, but i have read several threads saying handling has got worse/have problems with handing WITH the RRP.
Only problem i have with the front of mine is when pushing it hard (off power) around an island at motorway speeds. I get a little understeer but this can quite easily be caught with a dab of power.No tram lining and haven't had the tracking done (yet)
Diff modifier is BRILL though!
Edited by gsxr750steve on Sunday 27th April 21:14
wolfracer said:
gsxr750steve said:
stigmundfreud said:
having driven the car so long with it as it was (stock) it really does make a great difference.
Hi Stig,
How old/how many miles is yours? What model?
I'm interested to hear since mine is around 18 months old, has 20,000 on the clock and I just wonder if it will be a benefit to me as well.....
And what has happened to the handling - why is it so much better?
(Frankly it is my front that is rubbish - tramlines so bad I can hardly hold on sometimes! And yes, this is with the Road Response Pack....)
Seems the RRP is getting some negative comments.
To clear up, surely it is there to sharpen response, but i have read several threads saying handling has got worse/have problems with handing WITH the RRP.
Only problem i have with the front of mine is when pushing it hard (off power) around an island at motorway speeds. I get a little understeer but this can quite easily be caught with a dab of power.No tram lining and haven't had the tracking done (yet)
Diff modifier is BRILL though!
Edited by gsxr750steve on Sunday 27th April 21:14
Confused about who has written what here!
Ref the tramlining, its a feature prevalent on the 19 inch wheels, more so than the 18's. What tyre pressures are you running? 34-36psi is where you want to be. We do increase camber a bit with the RRP to reduce understeer, something most people want, but it will make tramlining a touch worse as a consequence. The closer the camber is to zero, the less tramlining will occur, though it will always be noticeable with 19's. More than happy to reduce this for you.
The RRP does increase feedback to the driver, thats the idea. To take out all (well as much as possible) the vagueness from the steering feel. If your not sure its for you, take the demo out for a test drive!
Edited by monkfish1 on Sunday 27th April 22:01
Edited by monkfish1 on Sunday 27th April 22:06
will agree with monkfish the demo is excellent, but this is with uprated suspension and lots of other nice toys!
I suppose its always the toss up between performance and crusing comfort. (one thing i found out in my last car.r.r.rrr.rrr.rr. as i would say when going over a rough bit of road!)
I suppose its always the toss up between performance and crusing comfort. (one thing i found out in my last car.r.r.rrr.rrr.rr. as i would say when going over a rough bit of road!)
monkfish1 said:
Ref the tramlining, its a feature prevalent on the 19 inch wheels, more so than the 18's. What tyre pressures are you running? 34-36psi is where you want to be. We do increase camber a bit with the RRP to reduce understeer, something most people want, but it will make tramlining a touch worse as a consequence. The closer the camber is to zero, the less tramlining will occur, though it will always be noticeable with 19's. More than happy to reduce this for you.
The RRP does increase feedback to the driver, thats the idea. To take out all (well as much as possible) the vagueness from the steering feel. If your not sure its for you, take the demo out for a test drive!
I'll go check the tyre pressures - I set them to what the plaque on the door tells me, which is in Bar so I'm not sure about psi. I'll check this morning. Other than that I may take you up on the drive of your VXR demo then see about having the geometry adjusted.
Got the RRP on a CV8 with 18's, and yes, tramlining is more apparent, but then as Roger say's it makes the front more responsive so it will be more noticeable. Preferable to moving the steering wheel 180 degrees though before the wheels actually turn!!!
Usually worse with worn tyres as well, new ones will be better, more down to the UK's shite roads though TBH, some are so bad, even my bike tramlines...
1 Bar = 14 PSI by the way. I'm sure mine is written in PSI on the label though!?!?
Usually worse with worn tyres as well, new ones will be better, more down to the UK's shite roads though TBH, some are so bad, even my bike tramlines...
1 Bar = 14 PSI by the way. I'm sure mine is written in PSI on the label though!?!?
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