V12 Land-Rover

These things (late 80s 750 BMWs) use ZF slushboxes don't they?

http://i8.ebayimg.com/01/i/03/85/27/62_1_b.JPG

And fetch peanuts. And would probably fit under the nose of a Defender
or Tomcat/Bowler with a little persuassion. And are a stupidly smooth
way of delivering 300 brake.

Anybody got some approximate engine dimensions?

Anybody know how different a car-derived ***22 ZF box is to a ***22 ZF
box from a Rangie/Disco V8?

Which bits need to be chopped and changed to bolt a car-derived box
onto an LT230, or which bits need to be chopped and changed to bolt a
750 motor to the front of a Land-Rover main 'box and have it change
gear properly?

In article <[email protected]>,
<[email protected]> wrote:
> Which bits need to be chopped and changed to bolt a car-derived box
> onto an LT230, or which bits need to be chopped and changed to bolt a
> 750 motor to the front of a Land-Rover main 'box and have it change
> gear properly?

I'd be surprised if it was the same series box for an engine with vastly
more torque.

--
*When blondes have more fun, do they know it?

Dave Plowman [email protected] London SW
To e-mail, change noise into sound.

ZF4HP22 for the 4.6 Range-Rovers. Book figure 286lbft and nobody seems
to kill the boxes with some mild tuning.

Used in XJRs too aren't they? 350, 400lbft odd?

Also used in the earlier M5s.

Shouldn't think a 7-Series engine is that different to a 4.6 Rover V8
or the M5 torque wise, and certainly isn't as brutal as an XJR engine?

Mark Hi,

the ZF 4HP22 autobox must supposedly be the same as far as torque
specifications apply either when used for a road going or an off road going
vehicle.

The upgraded version which can withstand more torque is called 4HP24 and is
the one
used on the Range Rover 4.6. All other variants of LR vehicles of this or
previous model years use the 4HP22 autobox. (apart from the 4.6 engined RaRo
P38A)

Some people say that the same autobox (4HP22) may be used without a problem
on
either a 3.5 or a 3.9 V8 or even a Tdi (200 or 300) engine.
I have not been able to confirm that for some years now.
Ashcroft Transmissions say that the version of the 4HP22 is different
between engine types and variants but users who have transplanted autoboxes
from V8 engines to Tdi engines say they have absolutely no problem.

As for the maximum torque allowance I would say that the general guideline
may lay between the torque output of the 4.0 and 4.6 V8 Range Rover P38
engines.
The 4.0 engine with its 320 Nm of torque uses the 4HP22.
The more torquey 4.6 engine with almost 380 Nm of torque uses the 4HP24.

So if the engine you plan to use (nice engines those BMW V12, they were also
used on the MacLaren F1 !!!!) delivers more than 380 Nm of torque I would
suggest you use an autobox from a RaRo P38. But this may require some sort
of electronic control if I remember well.

Take care and HTH
Pantelis

<[email protected]> wrote in message
news:[email protected]...
> These things (late 80s 750 BMWs) use ZF slushboxes don't they?
>
> http://i8.ebayimg.com/01/i/03/85/27/62_1_b.JPG
>
> And fetch peanuts. And would probably fit under the nose of a Defender
> or Tomcat/Bowler with a little persuassion. And are a stupidly smooth
> way of delivering 300 brake.
>
> Anybody got some approximate engine dimensions?
>
> Anybody know how different a car-derived ***22 ZF box is to a ***22 ZF
> box from a Rangie/Disco V8?
>
> Which bits need to be chopped and changed to bolt a car-derived box
> onto an LT230, or which bits need to be chopped and changed to bolt a
> 750 motor to the front of a Land-Rover main 'box and have it change
> gear properly?
>


<[email protected]> wrote in message
news:[email protected]...
> ZF4HP22 for the 4.6 Range-Rovers. Book figure 286lbft and nobody seems
> to kill the boxes with some mild tuning.
>
> Used in XJRs too aren't they? 350, 400lbft odd?
>
> Also used in the earlier M5s.
>
> Shouldn't think a 7-Series engine is that different to a 4.6 Rover V8
> or the M5 torque wise, and certainly isn't as brutal as an XJR engine?
>

In news:[email protected],
[email protected] <[email protected]> blithered:
> These things (late 80s 750 BMWs) use ZF slushboxes don't they?
>
> http://i8.ebayimg.com/01/i/03/85/27/62_1_b.JPG
>
> And fetch peanuts. And would probably fit under the nose of a Defender
> or Tomcat/Bowler with a little persuassion. And are a stupidly smooth
> way of delivering 300 brake.
>
> Anybody got some approximate engine dimensions?
>
> Anybody know how different a car-derived ***22 ZF box is to a ***22 ZF
> box from a Rangie/Disco V8?
>
> Which bits need to be chopped and changed to bolt a car-derived box
> onto an LT230, or which bits need to be chopped and changed to bolt a
> 750 motor to the front of a Land-Rover main 'box and have it change
> gear properly?

Certainly the V12 XJS 5.3 engine can be persuaded to fit with the application of
the appropriate shoehorn.

--
"The person who says it cannot be done should not interrupt the person
doing it."

If at first you don't succeed,
maybe skydiving's not for you!

<[email protected]> wrote in message
news:[email protected]...
> ZF4HP22 for the 4.6 Range-Rovers. Book figure 286lbft and nobody seems
> to kill the boxes with some mild tuning.
>
> Used in XJRs too aren't they? 350, 400lbft odd?
>
> Also used in the earlier M5s.
>
> Shouldn't think a 7-Series engine is that different to a 4.6 Rover V8
> or the M5 torque wise, and certainly isn't as brutal as an XJR engine?
>

Ultimately I dunno the answers but suspect the simplest option would be
similar to that I've just applied to Percy. I.e. remove 4.2 Jag lump, swap
bell housing for the SD1 BW66 to V8 one, refit V8.

Except obviously you will need the bell housing relevant to the zf autos in
your case. That way you don't need stress about faffing with transferbox
mountings / compatibility.

The V8 now sat in Percys engine bay looks positively little, I only hope it
worth all the faffing.

Lee D
--

www.lrproject.com

Workshop photos from Landrover repairs
& other such tinkerings.
Home of Percy the Jag powered Landrover

" Lee_D Mar 6, 12:41 pm

The V8 now sat in Percys engine bay looks positively little, I only
hope it
worth all the faffing. "

I'll raise you in the "little but worth all the faffing" stakes!
http://www.cosic.org.uk/YVC 788K/phase3/4.jpg
Cute eh?

And the two important bits being the snail shaped object and the
results of prodding the loud pedal in 1st:
http://www.cosic.org.uk/YVC 788K/phase3/9.jpg
http://www.cosic.org.uk/YVC 788K/203.jpg

200bhp and 30mpg has been done - now fancy a less practical project!
Rover V8 would be far too straightforward... ;-)