X30XE, getting a manual box to fit? Clutch question and lsd diff question

[180sxbreaker]

Hi all,
This question is aimed at the knowledgable and hopefully a few bodgers on here for this one
Looking at a track car build 3.0mv6, that has an auto box, not shy on work and conversions and deffo not looking for nout fancy with this one, is there any other gearbox that fits the engine? One requiring modificataion even?
Also whats the cheapest way out with a solid flywheel kit,
Heard one time that a lad put a opel frontera 2.2 diesel clutch kit in a v6 but not 100% true on the source of it anyone able to confirm
As for the diff question, my white mv6 manual has a lsd diff that must have gave trouble and some lad welded it up, with lsd diffs getting scarce are there available from any other models that can be made fit the casings? Also heard a few years back that the 525bmw was same but again i have only heard this the once and not sure if any truth to it
Hope to hear from ye
Regards
Martin

[Nick W]

You can get adapters to fit Mazda Mx or Rx gearboxes, and probably Ford(although I don't know why anyone would bother).
But if you want it in an Omega, the amount of work to fit one mean that's a terrible solution compared to using stock Omega gearbox/prop/flywheel/shifter/pedal box etc. Although it's not as easy as it used to be, this is likely to be the most cost effective route.


A road LSD isn't much use for any sort of motorsport as they're rare, expensive to buy, invariably worn out, weak and don't lock up very much. I suspect you want it for drifting, and a welded diff has got to be the best solution

[deviator]

There is an adaptor plate available for the RX8 box, I think it's about £150 for the plate. There are 2 variants, 0 degree offset and 7 degree offset (for the tilted engines).

Last time I looked, there was a company on eBay doing a box and prop shaft for around £150, I suspect if you find one closer to you and a private guy breaking, you'll probably get it cheaper.

EDIT

I haven't managed to find an adaptor for the MX5 box, if one exists, then I need it in my life!

[180sxbreaker]

I was hoping ye might say the 2.0 petrol or 2.2 or 2.5 diesel box can fit if ya drill a extra hole 😁😁
The diff question is related to a road going omega not the track one, sorry i should have stated that

[Andy H]

I thought that the running gear from a 2.2 diesel Omega (gearbox/propshaft/diff) was a bolt in replacement

Don't know if the flywheel & clutch fit as well?

[omegod]

Any R25-28 box will fit but you will need a V6 specific dual mass flywheel or solid aftermarket flywheel

[sjc]

If you're using the R28 Omega box, you can use the flywheel and clutch from a V6 Calibra, those were single mass.

[456lbft]

Interesting thread, as I am gradually acquiring parts with a similar idea in mind.  I have got a manual box from a 2.2 Diesel along with pedals and gearlever.  I have also just bought a 3.9 LSD from a guy on FB. I take the point about the age and softness, but have been quoted £1800 to install a Gripper diff (which the circuit boys like). And I'm not that serious yet.  I will probably try it in my (auto) road car first to gauge the effect. Manual should have a 3.7 ratio, but I figure that the slightly lower ratio should be OK for most tracks, and the diesel box has quite wide ratios apparently.

[Doctor Gollum]

3.9 manual picks up a bit better, but numbs the top end somewhat

[sjc]

3.9 manual picks up a bit better, but numbs the top end somewhat

On a private road of course 

[tigers_gonads]

3.9 manual picks up a bit better, but numbs the top end somewhat

Not that much
I've had well over 140 out of my estate (on my private test track of course) 

[Doctor Gollum]

Apparently one positive aspect of ex plod vmax (rumoured to be a smidge over 150...) is that if it runs out of fuel, it can coast almost a mile and a half.

And at 140 on the concrete two lane dual carriageways in East Anglia Germany, the Omega is more stable than the original Granada Cosworth, even in estate guise. Which is nice.

[tigers_gonads]

Apparently one positive aspect of ex plod vmax (rumoured to be a smidge over 150...) is that if it runs out of fuel, it can coast almost a mile and a half.

And at 140 on the concrete two lane dual carriageways in East Anglia Germany, the Omega is more stable than the original Granada Cosworth, even in estate guise. Which is nice.

Yup
Mine has felt solid as a rock since I replaced all springs / shocks / poly bushed front and back and put 4 decent tyres on it at the same time 
Shame rust will probably kill it before anything mechanical goes drastically wrong 

[Doctor Gollum]

I suspect that this is predominantly down to the rear track rods resisting the trailing arm loads across the car under load...

[tigers_gonads]

I suspect that this is predominantly down to the rear track rods resisting the trailing arm loads across the car under load...

I'll take your word on that Al 
All I know is it felt very solid