Upside down gearbox

W154 Learner Dubber

14 posts · joined Dec 2011 · 7 Dec 2011, 12:28 pm

#875963

I am building a mid-engined motorkhana/ circuit special for my daugter using a VW G/B and MG motor(don't ask!) .If I use the normal G/B I will have 1 forward and 4 reverse gears.I have read that to get 4F and 1 R I need to flip the CWP in the transmission( like a Formula Vee) but having read thru a couple of work shop manuals this appears to be a rather difficult and would have to take it to (an expensive) specialist to get this done. I am now thinking of just turning it upside down and using it but am worried about the oil quantity/ level required in the transmission in this scenario. So 3 questions
1 Has anybody got any experience of running G/B upside down and can answer the oil questions ?
2 Anybody know wher I can get the CWP" flipped "without costing an arm and a leg? (Victoria and southern NSW)
3Anybody know where I can get a cheap Formula Vee G/B?

Camo Custom Title Time!

1,936 posts · joined Oct 2007 · 7 Dec 2011, 12:55 pm

#875968

Why not put a Subaru gearbox in it, no need to flip crown wheel and get an extra gear for your trouble.

Kev

I thought rebuilding a VW would be cheap - Shit I was wrong, just don't let the wife know !!!!

Click here for my (slowy) modded 1961 Beetle build.

Anthiron The Baja Rejuvenation Begins

4,936 posts · joined Oct 2003 · 7 Dec 2011, 2:24 pm

#875974

You will also have no way to drain the box as the drain hole will be on the top.

Also starter motor on bottom,

62/60 model bug eye baja bug, (Full Build in Progress)
1974 Chevrolet Luv
1970 MK2 Ford Cortina GT
1979 Yamaha RX125 Two Stroke tracker project.
2004 Harley Davidson Sportster XL Custom

66brm Seriously Crusin Dubber

140 posts · joined Nov 2009 · 7 Dec 2011, 4:59 pm

#875993

Don't forget the breather hole in the nose cone would constantly leak

ragged Just ask if you need HELP!

478 posts · joined Jan 2005 · 7 Dec 2011, 6:39 pm

#876013

Answer 1. flipping the gearbox over was done for two reasons, a. for the reason you identified and b. the engine ends up closer to the ground therefore lowering the centre of gravity. simply plug the breather and drill a new one.
Answer 2. If you use a full syncro ('61-'70) gearbox, simply remove the the diff centre from the clutch side, and insert it in the starter motor side. Or get a kombi gearbox from the same era and remove the reduction hubs!
Answer 3. See answer 1.

Cheers Dave

ian.mezz I never said, I could write or spell

3,913 posts · joined Sep 2004 · 7 Dec 2011, 8:16 pm

#876032

http://www.zcars.org.uk/

http://www.bremarauto.com/products/subaru-2wd-conversion-kit/

😂🤪😂🤪😂
car forums. where a lot of peoples good intentions end up taking a good old car off the road forever never ever to see the road again. 🥲

vlad01 Compulsive Aussie Vee Dubber

4,270 posts · joined Jun 2010 · 7 Dec 2011, 8:37 pm

#876036

omg! I want that mini.

haha could you imagine driving that around the city 😂 3.4s to 100 😂

in your face other shit new cars👍

71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE

W154 Learner Dubber

14 posts · joined Dec 2011 · 7 Dec 2011, 11:12 pm

#876064

Camo, Thought of the Suby box but $$$$$ and special will be a 60's period one so Subaru stuff is a bit modern. Also thought of a Renault 12 box and axles but I wanted something reliable hence VW!
Anthiron, yeah might have to get the drill and taps out. No problem with starter.
66brm, will have to look into that
ragged1 Noted 2 You make it sound so easy! I will be in Adelaide next week, care to demonstrate? Have looked at Kombi/reduction gear back end tonight and I see what you mean.The CWP in that G/B arrangement has already been turned over to compensate for the gears rotating in the reduction hubs. Could be THE answer.

ttriebler Officially Full-On Dubber

321 posts · joined Jan 2008 · 8 Dec 2011, 6:18 pm

#876154

ian.mezz wrote:http://www.zcars.org.uk/

http://www.bremarauto.com/products/subaru-2wd-conversion-kit/

Bremar get their Subaru conversion stuff from us.....

Anyway, how cool is the Zcars site!!! I just sent a reversed 2wd Subie transmission over to them - they have a customer putting an EJ25 Forester motor into a Fiat 500 Bambino. That is going to be a crazy car.

W154 I can supply the parts for you to convert a subie box to a short 2WD box but the flywheel and adaptor plate to fit to the MG motor would be a cost killer.

Just fit a Kombi box and all will be good. Cheap, strong enough for what you want.

Reversed gears for Subaru transmissions.
Fit a Subaru 5 speed to your rear engined car
www.subarugears.com