V12

A

atomic

Hi everybody,
Does anybody knows if it's possible to fit a V12 (Jag, BMW...) in a Z260<img src="http://www.zclub.net/iB_html/non-cgi/emoticons/confused.gif" border="0" valign="absmiddle" alt='???'>
Cheers.
 
I recall a Jag V12 in a 280ZX some years ago - a car in Yorkshire. If you can get it into a 280, then it will go into a 260Z! My feeling is that the engine might be a bit too long and heavy and require bulkhead cutting to get the weight distribution right. A Jaguar rear axle can be fitted into a Z to accomodate the power and adjust the differential ratio.
Small block Chevy would be much more sensible (sensible, that is, within the context of fitting 5 or 6 litre engines into a Z&#33<img src="http://www.zclub.net/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=';)'>.
 
Hi Mike,

What jaguar model and series are we talking about regarding the rear axle? Is this what you did? And was it easy to do? A friend in the states was interested.

Thanks..
 
XJ6 and E-type models provide suitable "caged" rear diff and suspension assembly. The E-type would provide a PowerLock (LSD) diff and some sporting ratios. Avoid auto models where the ratio is too long-legged.
The diff is located on a new custom cross-member (available via Hot Rod and Custom shops). The driveshafts and lower arms need to be shortened (care with driveshafts and the material used, especially for high horsepower installations). Custom tie-plates are available from HR & C shops for rear, front and underside of diff. to locate various components. Custom tie-rods and pinion anti-climb bars have to be fabricated, new brake pipe layout installed and handbrake linkage made to adapt to inboard handbrake calipers.
You can get away with using just two of the four Jag shocks with adjustable coil-overs like Spax. Ideally you will want height and rate adjustability. NB. hubs are 5 stud, so make sure the wheel you select is available in 4 stud front Datsun pattern and 5 stud Jag/Chevy rear pattern - Centrelines are nice!
 
Mike, thanks very much for the info <img src="http://www.zclub.net/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=':D'>..

Atomic - I was speaking to a friend who works as a mechanic for Jaguar in the US and he says that whenever an XJS comes in, all the engineers run a mile as they are very complicated to work on. I happen to have an XJS Factory Workshop Manual and I tell you, you need a degree in physics and mathematics to understand it. Maybe the Haynes manual is less complicated?? I doubt it though..???

If that hasnt put you off and you are still thinking of going for the XJS V12 powerplant, I dont recommend going for the 1st series 5.3lt model, mpg is absurdly low... go for a HE model.. or something later

The V8 swap is a very well documented and popular swap in a Z, you get bags of power and reasonable mpg too, if you check out HybridZ.org you'll find more info. on this and if you still want a V12 in a Z you can probably find info for that there too.

Good luck in your choice.
 
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