dyno questions

[my1st2genGSX]

So, I have a friend that own his own shop with a fwd/rwd-Dynocom Dyno. He is planning on getting the AWD attachment by the beginning of the year, but long story short.


Is is ok to drop the rear driveshaft to dyno/tune my GSX on the dyno with no issues?

 

[Kenny07]

http://www.dsmtuners.com/threads/dynoing-an-awd-on-a-fwd-dyno.232847/

Should be fine, Cap the T Case so no oil leaks

 

[91talonts1]

Pretty sure you need the viscous coupler eliminator.

 

[er82]

Or a welded center diff.

 

[my1st2genGSX]

Why a coupler eliminator? Its spinning both wheels at the same speed.

My plans are to just drop the driveshaft, at the carrier bearing..

 

[bastarddsm]

If you don't have a welded Center diff or a vce you will burn up the center diff dynoing it in front wheel drive.

 

[Vegas Smith]

Isn't there a guy chaddata or something that has an awd dyno in SA?

 

[91talonts1]

Why a coupler eliminator? Its spinning both wheels at the same speed.

My plans are to just drop the driveshaft, at the carrier bearing..

The fronts may spin at the same speed but the rear won't be connected to anything. Viscous coupler is on the center diff not front diff.

 

[my1st2genGSX]

Isn't there a guy chaddata or something that has an awd dyno in SA?

Unfortunately there is only one shop in as that has a awd dyno and they only mess with subi, gtr, and evo, and evo swap tuning...I've asked them if I could being my own tuner and they shot it down.

So pretty much its a no to dyno my gsx in fwd form with out a welded diff or a coupler.

Plus I was getting confused about the while thing.

 

[spyderdrifter]

You should really just wait to dyno it with the awd running. Due to drivetrain differences, you won't get the same power at the wheels in awd as you would fwd due to more drivetrain to push the power through. Even going through the trouble to make it work in fwd, getting dyno results in fwd on an awd car is just going to give you false power numbers. Am I right on this?

 

[lasershark]

Unfortunately there is only one shop in as that has a awd dyno

I thought Texas was home of the fast cars? Weird that their shop doesn't charge the dyno by the hour for self tuners.