How hard can the diff lock be pushed??

[quattrodude]

hey all i was just woundering how hard can i push a std diff lock on my qc??

im gona take it round donny track and want to know can i leave the lock on or will high speed damage it?

any advice would be great

[PRA4WX]

You can drive it locked all the time if you like, no damage will be caused the diff.

[aelred]

I assume you are talking about the centre one

[HPmuirt]

I assume you are talking about the centre one

I hope he is not talking about the rear diff lock If he is, I'll bet you £10 he doesn't make it through the Craner curves before he has a BMW moment followed by a long slide and a date with the nearest tyre wall

Cheers n

Si

[Rusty]

No need for diff lock, it'l do DOnny just fine with them open. If it is the rear one then they're quite well behaved but you'll have to think about mashing the loud pedal mid corner like you can get away with on an open diff car.

[re2500]

Doesnt it turn off automatically at 25mph ish??

[quattrodude]

the only reason i ask is because when i push the s2 it just tends to go where ever the weight is going witch is usualy the wrong way, so i was thinking it would be so much more controled if the rear was to stand out to compansate the front slide.
i no it would take a while to master that but the only way i have managed it in the past is to stick it into a bend and when it starts to slide shut off untill the rear starts to go then foot back down to the floor and power back out of the other side but im sure there must be a easyer way to get it round a tight 1????

Car is completly stock suspention wise and just has powerflex wishbone bushes all round so it tends to roll alot.

[Rusty]

Having driven my basically stock S2 round a few tracks, the only way to succede is to work with the car. You can't expect it to react like an 800kg hot hatch so drive it accordingly. Slow in, on the power early and fast out, it works very well.

The only mod I have made (stock bushes, springs & FARB) is an uprated RARB. This transforms the stock car into something much more driveable as it gets rid of most of the understeer and allows you options when cornering.

As for the difflock idea, your plan is slightly flawed, firstly a stock car doesn't have the power to overcome the traction so forget BMW style drifting and secondly, when it grips it will make the car understeer off the track. You need to be much more aggressive with a locked rear axle as any stock car racer will tell you. In combination with a RARB you might do OK.

RE2500, cut the blue and white wire running to the ABS ECU

Here's what it looks like from the outside...

[quattrodude]

thanks fella advice much appreciated i am chasing a white line rarb as we speak and as for the cutting of wires???
What does that affect?

[Big Lee M]

Are you tryying to do what I did our of your street!!!!!!! Ha ha it was fun........... Sideways, you know it is fun!!!!!!

[Anagonda]

RS2 turbo and the rear diff "lock"-gear comes out in three parts. Thats about all I know

[Rusty]

On the S2 at least the difflock is disengaged at 40kph, cutting the wire stops this from happening.

You can in the FARB on the rear for less money and it's far more aggressive for track driving, perhaps too much.

By all means try the difflock but be careful as drift king can turn into gravel trap shame far too quickly. If it's yet then that's another story

[20vQC]

I did use the diff lock on the track, works pretty cool on dry. And used it on the wet track too... That means no braking on corners,just a clean and controlled power slide and the best thing is looking the ferraris disappearing from the mirror! Cheers!

[QuattroFever]

How does the difflock mechanism look, I know its vacuum activated and thats about the extent of my knowledge. Hard to trust how tough something is without knowing whats involved in locking it.

If its a 5mm steel rod or similar then not something I would want to abuse on a track, then again if its a 15mm rod, happy days I'm getting sideways.

[PRA4WX]

Don't sweat it. I've put many miles on mine both in the dry and wet, and it still functions perfectly. I'm not the only one. Here's a pic of the speed limiter disable as well.