Road Rally MK2 4 Door (XE powered)

[onecamohv]

Re: Road Rally MK2 4 Door (XE powered)

really looking forward to seeing how this pans out, im running a 4.1, im thinking the 2nd might be too long for that, what are the ratios do you know?

lovely job on the pedal box

[lukem30]

Re: Road Rally MK2 4 Door (XE powered)

I'm looking forward to trying it. The 6 speed rx8 ratios are - 3.76, 2.269, 1.645, 1.187, 1.00 .843.
John ran a 3.89cwp at first with his rx8 box and found it too long for stage rallying, he has since changed to a 4.6 and find it brill now. Take a look out onboards to see the difference in the cwp's. Something to think about.

[lukem30]

Re: Road Rally MK2 4 Door (XE powered)

Another step closer, pedal box is in and hydraulic clutch pipped up.





Last thing to sort now is the propshaft, it's 45" from my atlas to the gearbox which I belive is about an inch to short to use the rx8 Carbon prop. I'm waiting on some measurements from John to confirm. Looks like I'm going to have to get my original prop shortened.

[onecamohv]

Re: Road Rally MK2 4 Door (XE powered)

why dont you use an alloy machined spacer between the prop and the diff? seen it loads of times on rally cars to get as much prop in the box as possible if the engine location is not ideal

[freddy686868]

Re: Road Rally MK2 4 Door (XE powered)

why dont you use an alloy machined spacer between the prop and the diff? seen it loads of times on rally cars to get as much prop in the box as possible if the engine location is not ideal

the carbon rx8 prop is too long in the first place or i would have done this :/

[freddy686868]

Re: Road Rally MK2 4 Door (XE powered)

I'm looking forward to trying it. The 6 speed rx8 ratios are - 3.76, 2.269, 1.645, 1.187, 1.00 .843.
John ran a 3.89cwp at first with his rx8 box and found it too long for stage rallying, he has since changed to a 4.6 and find it brill now. Take a look out onboards to see the difference in the cwp's. Something to think about.

i was running a 3.75 too luke so even longer again .

[onecamohv]

Ah sorry I thought the prop was too short not the distance for it! How do you think the 4.1 would be John?

[lukem30]

Re: Road Rally MK2 4 Door (XE powered)

Had the prop back from bar propshafts in neath, shortened with an rx8 end fitted, very speedy service at a good price.
A little bit of tinkering left, then to fill the box with fresh oil and give it a go.

[freddy686868]

Re: Road Rally MK2 4 Door (XE powered)

Ah sorry I thought the prop was too short not the distance for it! How do you think the 4.1 would be John?

I'm not sure really i haven't had any experience with the x flow engine. I think a 4.1 behind lukes xe would be perfect though. But sometimes you just have to suck it andsee

[azz259]

Re: Road Rally MK2 4 Door (XE powered)

How much was it to modify the prop luke? I need mine shortened and a type 9 end fitted on , do you have a type 9 end going spare now ?

[lukem30]

Re: Road Rally MK2 4 Door (XE powered)

How much was it to modify the prop luke? I need mine shortened and a type 9 end fitted on , do you have a type 9 end going spare now ?

It was £125 with both yokes replaced and a new rx8 end. They kept the type 9 end, I expect they probably binned it.

[lukem30]

Re: Road Rally MK2 4 Door (XE powered)

Quick update, very happy with the rx8 box so far, ratios feel good and the change is nice and slick. Got a good test for it on the weekend - Spring performance action day at Castle Combe. I've also put an entry in for the Bob Shaw memorial rally at talbenny the weekend after.

When I changed the box I fitted a new ally two piece flywheel, however, after a few runs over the local mountains to test the new box, one of the bolts on steel plate tried to make a break for it and ruined my clutch in the process. I had the clutch re lined and put it back together today ready for the weekend.

[lukem30]

Re: Road Rally MK2 4 Door (XE powered)

Not a good day at the office

https://youtu.be/qCWtjbfr-3w

[alladdin]

Road Rally MK2 4 Door (XE powered)

What was it ?

[Warrior]

Re: Road Rally MK2 4 Door (XE powered)

Just had a watch and a read of the comments, apparently half shaft snapped folding the wheel?