Gearbox advice

turboboy Seriously Crusin Dubber

117 posts · joined Sep 2008 · 19 Jul 2014, 6:46 pm

#996082

Any advice on the gearbox I plan to get done
It's going in my Buggy , aprox 680kg , 26inch tires
6500rpm

Pro 091 Bus VW 4.57 R/P 3.11-1.93-1.22-.82 Weddle 1-4 gears
Bus to Bug Housing
LSD Diff
930 Flanges
002 Bell Housing

Type 1 930 Axle Stubs
300 M Axles 15 5/8
Solid Mounts
(4) 930 CV Joints

Cheers
Rich
👍

HappyDaze Superannuated

2,887 posts · joined Jun 2009 · 19 Jul 2014, 7:14 pm

#996085

Dangerous 👍

I'd rather wear a Beetle out by racing it than by polishing it!

andrewmurphy Officially Full-On Dubber

307 posts · joined Jul 2005 · 20 Jul 2014, 7:36 am

#996106

Dangerous 👍

turboboy Seriously Crusin Dubber

117 posts · joined Sep 2008 · 20 Jul 2014, 11:49 am

#996120

Hello Dave , I know you are out there.
Any comments/ advice

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 21 Jul 2014, 8:34 am

#996220

Is it a street car or race?
How much HP?
If it is race, get a spool in there.
Those Peloquin diffs are great, but heavy and unnecc in drag racing.

At 680kg and turbo?... what ever the application,
you will need taller 1&2 gears.

You have close ratio 1&2
then wide gaps between the rest!
Turbo will pull through that OK,
but it would be nice to have better-than-stock ratio gaps.

With the tall 4th gear you are kind of limited to wide gaps,
but if you need to keep that 4.57 diff ratio, I would choose:
4.57 diff
2.82 or 2.90 first gear,
1.857 second,
1.19 (or 1.14 third would be second choice)
0.82,

Even better would be one of Albins
4.125 ratio crownwheel and pinions,
3.111 or 3.333 first gear

1.93 or 2.00 second gear
1.25 or 1.300 third gear
0.89 4th gear.

westi wrote:That's mad Alan.

turboboy Seriously Crusin Dubber

117 posts · joined Sep 2008 · 21 Jul 2014, 10:55 am

#996223

Thanks for the reply Dave
This is a street driven Buggy
With a bit of strip play
The reason Peloquin diff I figure is to help keep it straight
under hard take off
Hp hopefully around 250 ,Ron Lummus recon's 300 but I'm shore he is talking flywheel HP
I really don't want to boost more than 15lb's.
I have never really looked at gearboxes, specially Kombi boxes
So your advice is greatly appreciated