Using a 2 wheel Dyno in a 90q?

[Huw Powell]

> Now there are quite a few 2wd dyno's in town.  What
> exactly do I need to do on my car for this?  Pull the
> two front driveshafts off, and manually lock the
> torsen Diff, and disable the 15 mph cutoff?  Or do I
> need to pull the whole rear driveshaft and manually
> lock the diff then use the front wheels?

> '89 90tq 034EFI Stage II

The problem here is that the center diff is not lockable on the TorSen
cars.  Only the rear diff is manually controllable.  Presumably with the
driveshaft dropped and only front wheels driven, the TorSen will send a
great percentage of the "spin" to the front - but I also suspect that
would be a very abusive mode to run it in, especially at full power.
Especially with all that extra power.

I think you're gonna have to bite the bullet and go with the AWD dyno.

--
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/