Hi Neil
The B gear box is just not up to the job...138bhp form you factory V8 was
about as far as it would go.
The latest gear box used in the Range Rover is meant to be the best but
still a bit to much for most.
If my 5 speed rover box go's I was going to look at the T5 Ford box from
cars like the Ford Cosworth. Think it mite have been in the XR4I as well?
I have seen a 550bhp water injected full on turbo nutter job with just a
upgraded clutch and no problems on the standed box. Apart from will spin at
100mph (it was damp).
The other good thing about this box is a sweeter change than the Rover box.
The down side is what ever you go for (unless it is the B gear box) you will
have to widen the gear box tunnel from the bulk head.
I have about 3 books on this and if you go to http://www.mgcars.org.uk/
have a look under V8 and you should find more info.
Also call Dave at V8 Conversions on 01689 858716. Hi is over in Kent and
full of good advice.
Hope this helps..
Simon Green
Horsham
West Sussex
UK
-----Original Message-----
From: Neil Cotty [mailto:neilc@apphosting.com]
Sent: 05 December 2001 23:49
To: mgb-v8@autox.team.net
Subject: V8 Gearbox conversions
Hi all,
Still motoring around in the V8, 1000's of miles passing by. Fixed that ex.
manifold leak I had and it cured the hiccups I was experiencing - car feels
like new these days. :) Superb.
Unfortunately I have run into a more serious problem. The other day I found
a 5" hairline crack in the gearbox casing, she's leaking oil pretty rapidly
now. My factory V8 is slightly uprated with a Rover 3.9 efi cam & Weber. The
crack looks like fatigue to me or a casting fault - definitely not impact.
So I have a couple of choices repair and refit the existing box or fit a
Rover 5spd (and repair the original to keep on the 'shelf'). I'm worried if
I r&r the existing box it will just reoccur if it's due to the additional
hp - I already know many of you have had boxes fail even perfectly stock
so..
Now I know most of you are conversion owners, so what is the latest,
strongest Rover Box I should look for (model no.) and where can I find out
the mods I need to make to fit it? Will I need to make any changes to the
bodywork of the car (I hope not!!), how about mounts, clutch etc?
For parts/advice to perform the conversion, who would you recommend in the
UK?
Cheers,
Portsmouth, England
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