924Board.org

bruni · Joined: 26 Jul 2008 Posts: 114 Location: South Africa

Hi I have been looking at this myself, however my engine is fully functional at the moment so I lack the incentive. There is tons of information on the net and plenty of parts, the big issue is still the batteries. You pay your money and take your choice.

I believe the 924 will make an excellent base vehicle, the rear mounted transaxle will enable you to fit the motor directly to the existing gearbox and put the batteries up front where the engine used to be, which will help to maintain a reasonable weight distribution and keep all the interior space!!

good luck, keep us all posted
_________________
1982 931
1975 harley sportster

rat · Posted: Tue Oct 21, 2008 7:48 pm Post subject:

Throw away the entire engine and drive chain,

Fit a couple of these to the rear wheels.

http://www.pmlflightlink.com/motors/hipa_drive.html

120kW and instant 750nM of torque each!

The remaining work is then
- build and fit a canbus pedalbox.
- Install a hand brake for parking.
- Pick your battery tech of choice, install and fit charger (probably need some in place of the fuel tank and some in the engine bay.)
- Think about a small petrol generator to keep the car going on long trips.
- Little bit of tuning of drives to keep the performance under control.
- Rig up the car ancileries.

rat · Posted: Tue Oct 21, 2008 7:54 pm Post subject:

If you fit 4, you can throw away the original braking system too. Make maximum use of regeneration. (feeding energy recovered from slowing the car, back to the batteries)

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

PwrGTOGuy looked into converting his 931 to EV, but has since scrapped the project. Apparently, he was getting a bunch of info and possible parts from rjmink, who I believe is an engineer at VW working on EV technology. Might be worth dropping him a line...
_________________
erstwhile owner of just about every 924 variant ever made

paulh · Joined: 14 Sep 2006 Posts: 38

Hey, Thanks guys some really interesting ideas, and encouragement there.

Often you find with car groups that people will always tell you. Buy a new gasket and get over it. Advice I wished I took last time similar happened. But this time I've got the resources to make it work.

be keeping you posted.

Paul
_________________
Mont Macedon Victoria Australia
1981 942 NA was brown now red- soon to be an Electric Porsche

paulh · Joined: 14 Sep 2006 Posts: 38

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

A strut brace can fix the flex between the strut towers. Several alternatives there, you may want to look at how the GTRs or D-Prod tube-frame cars were setup.

As for the torque tube, I'm not sure how that would lend rigidity since both the trans and motor are on rubber mounts...
_________________
erstwhile owner of just about every 924 variant ever made

paulh · Joined: 14 Sep 2006 Posts: 38

I don't know where I heard that the tube was structural, but I remembering reading is somewhere?

But that's good new.
_________________
Mont Macedon Victoria Australia
1981 942 NA was brown now red- soon to be an Electric Porsche