CR rear end

[Lee]

I know a few people use the cr rear end on the x5, what are peoples general thoughts about this, does it settle the rear end even more or is there very little difference to the std rear end.

[Doomanic]

I'm just about to fit the CR parts as part of the full rebuild my car needed after the last regional.
I'd be interested to see a starting set up.

Oh, if someone could say it's ace I'd be grateful, cos then I can flog Lee all the bits he needs on Saturday....:woot:

[mw02veg]

has the bubble finally burst lee?

[Southwell]

Made my XX4 much better, rear end more predictable and rotated a bit better. My cars pretty dialled at most tracks, was awesome at Oswestry once i stopped driving like a pillock.

[Big E]

Fitted it to mine after Os and I felt it was a lot better, just a lot more stable entering the turns on the rear end and I now have the option to make it even more stable by having the vertical ball adjustment.

Same shock settings as with the normal rear end but outer hole on hub with the ball low (yes you do have to grind loads away for clearance), long vla and outer hole on the wishbone for the shock.

I will be running it this weekend.

E.

[AmiSMB]

Do you have any pictures of this change?

[ryan]

Made my XX4 much better, rear end more predictable and rotated a bit better. My cars pretty dialled at most tracks, was awesome at Oswestry once i stopped driving like a pillock.

You never stop driving like a pillok! :lol:

[ben]

wowwww dont knock southwell ryan lol. He was the top F3 at oswestry lol :lol:

[ryan]

But he's not really and F3 lol, he just never turns up to regionals!

[ashleyb4]

I was going to do this but never got round to doing it. But lee i would recomend running cr rear inner hinge pins so that the rear brace doesnt flap around and it also decreases the chance of you loosing it.weather you keep the xx4 rear end or the cr one.

A

[Lee]

Cheers boys, I will swap the bits over today or tomorrow and see what it does. :thumbsup:

Dom, i already have the parts off the donor xx4 :thumbsup: sorry :lol:

[Wraggy]

He was the top F3 at oswestry lol :lol:
not in 2wd he wasnt ;)

[Southwell]

wowwww dont knock southwell ryan lol. He was the top F3 at oswestry lol :lol:

And Kiddy, both classes :p

[B44&501xRacerEX]

Cheers boys, I will swap the bits over today or tomorrow and see what it does. :thumbsup:

Dom, i already have the parts off the donor xx4 :thumbsup: sorry :lol:

Didnt know you had a XX-4. I heard it's better to have the motor up front
anyhow.:thumbsup: Good luck with your conversion.

[Southwell]

He doesn't, he has an X5, like it says on the first post :p

[ashleyb4]

Didnt know you had a XX-4. I heard it's better to have the motor up front
anyhow.:thumbsup: Good luck with your conversion.

In that case i might move my motor to in front of the front shock tower thanks for the help.

A

[YoungChazz]

Oooohh! Front motor, mid-wheel drive! What a great idea! I bet it steers really well, enough to overcome the lack of rear traction. Have you got any C.A.D. to share? No doubt a super-trick lay shaft mount system...

[Steve.T]

Having just raced my X5 on a bumpy grass track, I was wondering what parts are needed to convert the car to the XXXCR rear end. My car was very nervey an meant that I could not attack as I would have liked.
The car does need rebuild though....

[Steve.T]

xxxx

[Lee]

XXX Cr wishbones and hubs, i think thats it.

The car felt very good yesterday for me and it could have gone much quicker, i just couldnt find a quick line over the back section at tally

[Doomanic]

I found that you have to use the High Pin Conversion or dremel the chassis to get enough clearance for the CR wishbones to pivot freely.

[bigred5765]

tried it at tallyban didnt like it, the rear end was not as good as std rear end,will try it else were and see what happens.

[AmiSMB]

I have a packet of the XXX-CR wishbones and a packet of XX-4 WE arms and is it right that the CR wishbones are quite a lot shorter in length to the XX-4 WE arms?

[ashleyb4]

how much by if the outer hole of the cr wishbone is in line or there abouts with the inner hole of the xx4 wishbone then yes they are right.

A

[super__dan]

The arm isn't really shorter no, running the outer VLA is a similair length to the old arms. As Ash says inner shock hole on old arms is outer on new give or take. The 2nd outer hole (it's centred in the hub) in the new hubs is ablout the same length as the old outer hole, but with 0 washers it is slightly higher than the old outer camber link hole.