100 replies to this topic

[Sticky]

You've got all the gear, you just don't use it for some reason. Anyway, didn't you buy the car with the diff in place? Remember you telling me its not really worth having.

All the gear and no idea, more like

Really do recommend a Quaife but it does make the drive really different. Great for TDs though.

My post was aimed at rob. Should of quoted it, my bad.

Phew! I was trying to remember when I said I didn't like mine!

Answer your texts!

[leevx2.2]

On my wish list has anybody got one for sale or no where is the cheapest place to get hold of one

Edited by leevx2.2, 21 October 2012 - 05:51 PM.

[slindborg]

The mad doc

[jameso]

It's quite a bit more expensive but I reckon RL TC is a good fit for your use Aimy, means u can take a few more liberties on the road with right foot and has launch control for your drag runs? J

Edited by jameso, 21 October 2012 - 06:41 PM.

[Bumblebee]

Il have a look into this too,I have other priorities atm but in the mean time il speak to Liam at MMG about the Rl TC and the quaife lsd

[The Batman]

i have one... cant wait to try it out

[Nev]

I used to be able to get them for £575 and sell them for £650 and was selling them from my website, but I think they have gone up recently.

There has been some misinformation posted on this thread. Specifically, a reasonably setup LSD will help you almost as much on the road as a track. Basically you will notice its considerable effect on the first round-about or corner you go round (regardless of whether it is on a track or road). It's effects are almost as warrented on a low power car as a high power car as far as cornering is concerned, as it allows the drive wheels to rotate at different speeds. Thus for example if you are haring round a corner at the limit of traction at 40 MPH, it doesnt really matter whether your car has 50 BHP or 500 BHP - the benefit will be (almost) the same. Other subtle benefits on the road are things like, when one wheel goes into a large dip/pothole it will want to rotate more than the other wheel (as it has further to travel). With a fixed diff this would unsettle the car, whereas the LSD will abosrb and accomodate for this.

Having said that, on higher powered cars it can provide a bit of added 'safety margin' to absorb an over exuberant appplication of torque in some circumstances.

HTH.

Edited by Nev, 21 October 2012 - 07:58 PM.

[jackturbostage4]

Pm turboluca he had both LSD and racelogic .

[Steelic]

On my wish list has anybody got one for sale or no where is the cheapest place to get hold of one

There is a Chinese copy for about £240 but these come rough and ideally need disassembling (some have the gears back to front), deburring/peaning and reassemble with upgraded washers(£12), also they are probably not with the VX corrected ramp angle specific to RWD.

http://www.ebay.com/...e&forceRpt=true

[jhinchy]

Start a group buy! I'd be on that list. The VX is my first red car without a LSD, and I miss the ability to do Donuts

[Bumblebee]

I used to be able to get them for 575 and sell them for 650 and was selling them from my website, but I think they have gone up recently.

There has been some misinformation posted on this thread. Specifically, a reasonably setup LSD will help you almost as much on the road as a track. Basically you will notice its considerable effect on the first round-about or corner you go round (regardless of whether it is on a track or road). It's effects are almost as warrented on a low power car as a high power car as far as cornering is concerned, as it allows the drive wheels to rotate at different speeds. Thus for example if you are haring round a corner at the limit of traction at 40 MPH, it doesnt really matter whether your car has 50 BHP or 500 BHP - the benefit will be (almost) the same. Other subtle benefits on the road are things like, when one wheel goes into a large dip/pothole it will want to rotate more than the other wheel (as it has further to travel). With a fixed diff this would unsettle the car, whereas the LSD will abosrb and accomodate for this.

Having said that, on higher powered cars it can provide a bit of added 'safety margin' to absorb an over exuberant appplication of torque in some circumstances.

HTH.

Thanks for the reassurance and great info nev

[Sammyturbo]

Start a group buy!
I'd be on that list. The VX is my first red car without a LSD, and I miss the ability to do Donuts

+1

[jhinchy]

Start a group buy!
I'd be on that list. The VX is my first red car without a LSD, and I miss the ability to do Donuts

That should say My first rwd car without LSD.....doh

[Pidgeon]

There has been some misinformation posted on this thread. Specifically, a reasonably setup LSD will help you almost as much on the road as a track. Basically you will notice its considerable effect on the first round-about or corner you go round (regardless of whether it is on a track or road). It's effects are almost as warrented on a low power car as a high power car as far as cornering is concerned, as it allows the drive wheels to rotate at different speeds. Thus for example if you are haring round a corner at the limit of traction at 40 MPH, it doesnt really matter whether your car has 50 BHP or 500 BHP - the benefit will be (almost) the same. Other subtle benefits on the road are things like, when one wheel goes into a large dip/pothole it will want to rotate more than the other wheel (as it has further to travel). With a fixed diff this would unsettle the car, whereas the LSD will abosrb and accomodate for this.

Having said that, on higher powered cars it can provide a bit of added 'safety margin' to absorb an over exuberant appplication of torque in some circumstances.

HTH.

I've only had one car with an LSD and I don't like what I find. What does as LSD do other than prevent power overcoming the grip of the unweighted wheel?

I never driven a VX that was wasting power through a lack of rear grip. I've never driven a VX, on road or track, that could not put all of its power down through an open diff. Perceived wisdom informs that if I increase rear traction, I will also increase understeer, which is the enemy in tight corners.

Yes, LSDs do 'allow the drive wheels to rotate at different speeds', but so does an open diff.

An LSD is a wonderful device for vehicles operating on low traction surfaces (Landrovers) and for overcoming fundamental design failings (powerful FWD vehicles) but has no place on a pure sportscar.

Don't get me started on TC. If you can't drive, just buy something with it fitted.

[Mike (Cliffie)]

I fitted the Quaife over Winter before the Time Attack season started and let me explain why. I drove Max's VX at Snetterton last year and even with the Kumhos on it would spin the rear left wheel up coming off the hairpin onto the Revit straight (on the 200 circuit) and we were losing loads of time. I knew TA would visit Snett in 2012 so I fitted it to counter that. I agree in part with Partridge, in so far as I have not really experienced situations where the VX would lose traction aside from the one above. I reckoned that with a hike in power that was planned and the pure track nature of my car, I had little to lose in fitting one.

[slindborg]

On my wish list has anybody got one for sale or no where is the cheapest place to get hold of one

There is a Chinese copy for about £240 but these come rough and ideally need disassembling (some have the gears back to front), deburring/peaning and reassemble with upgraded washers(£12), also they are probably not with the VX corrected ramp angle specific to RWD.

http://www.ebay.com/...e&forceRpt=true

I really really really wouldn't get one or start a group buy for that specific product if there is that quantity of work to do to make it useable... I mean the labour to sort the issues out is almost enough to wipe out a 'saving' alone. Then factor in Chinese monkey metal which will fail in a random quantity of time depending on how much tofu/newspaper they got into the mix

[SteveA]

Yes, LSDs do 'allow the drive wheels to rotate at different speeds', but so does an open diff.

Exactly, hence the word differential. The only difference between an open and LS diff is that the open diff will let one wheel spin up without trying to control it.

but has no place on a pure sportscar.

Sports car - maybe not, race car - almost certainly needed.

[Korkey]

Having used and not used LSD's in quite a few cars I agree with Partridge. A complete and utter waste of time and money for a road car. Along with all the "Aero" crap. And in my opinion with the driving skills of less than a dedicated driver just as useless on track. How fast and hard do you REALLY intend to drive the car on the road in the wet? I would guess............not that fast. Korkey.

[Sammyturbo]

My car will spin the inside wheel on roundabouts in the wet no problem an lsd would help stop this it also means you can drift at will I drove a sport 160 with lsd for 18months in all weather's so I have plenty of experience and I think they are worth while

[Rosssco]

The thing I quite like about the car as it is (i.e. no LSD), is that its pretty predictable and generally progressive (more so in the wet) when the front or rear starts to let go, and I would worry that a LSD may make the transition from grip-slip-grip less progressive and predictable, especially for non-hero spec drivers like myself.. I guess it also depends on a multitude of factors including suspension set-up / geo, ARB setting, tyres etc. etc... I previously read some stuff on LSD's as applied to Noble GTO's, and it appears opinion is just as split there, although more tend to say not required for road, yes for track..