Would it be possible to accurately dyno test engine performance on a 997 C4S on a 2WD Dynapack dyno if the front wheels were lifted off the ground?

Will all the power be locked onto the rear wheels?
Would traction control object to such a test?

My guess is it may not work properly but I've never tried it so I don't really know. ...And I'm not sure of who else to ask.

Any 997 C4S experts in the house?

Thank you,
Tony

 

i dont know much about dynos or AWD but it doesnt sound like a good idea at all to have wheels up in the air when in practice youre supposed to have the car strapped down tight so that it doesnt catapault thru a wall. find an appropriate dyno.

 

Hey maybe you can get those guys from Myth Busters to try that for ya!!

Last time they were here in my next of the woods they put a cannon ball through a house!!

So that kind of Dyno sounds right up their alley.

 

There are no straps involved with a Dynapack dyno because the wheels are removed and the dyno pods connect directly to the hubs.

In this case the car can't go anywhere or apply any torque to the ground.

 

NO, you have to have a mustang dyno, the type with the mechanical linked front and rear roller. Not simulated front and rear linkage, but authentically mechanically linked
or you may also disconnect the front drive shaft and then just measure the rear

 

I could disconnect the front drive shaft for the purposes of dyno testing. ....And I will do a lot of dyno testing.

The reason I ask is because I would like to do exhaust development work on the 997. Very much like what I did on these parts for the Nissan 350Z & 370Z. These work really good for making power in a way that a regular straight pipe can't.
I want to make an even better version for the 997.


Its not that big a deal. I can get the 2wd CS but ....there is a screaming deal on a C4S locally. (and to be honest, it sure would be sweet to take the C4S to the track .)

Even if I have to make a few temporary accommodations on the drive shaft, If I can verify the C4S can be accurately dynod on 2WD Dynapack, I'll buy that 4S right now.

 

you could completely take the front drive shaft off. alot of people with 4wheel drive porsche do it for track use

 

Thank you! That says a lot.