when i went to the dyno today ... the first run 3rd gear the car had no traction ,, so he stoped pressing the gas and he just reached 5000 rpm ... we got 550 whp in 1.2 bar !!! the A/F was fine

the 2nd run he Tied the car well in the Ground
so hi tried again in 3rd gear but when he reached 4000 rpm the car look like cuted the power and stop !!!!!!

he tried again in 4th gear !!!! still the same problem !!!!

the dyno was dyno jet !!!!


any Recommendations will be greatfull

thanks
yousef

 

Hey bro.

I checked with Dan about this and it seems that the Dynojet machines are no good for 4wd cars. They will always be inaccurate unless you decouple the driveshaft to the front wheels and dyno it as a rear wheel drive.
That too is less than ideal from what I have been led to believe.
No luck dyno-ing our cars in Kuwait bro.

 

so i will try to disconnect the shaft for dyno ..

 

You can easily damage the differential if the dyno isn't a proper type to dyno an AWD porsche. On a dynojet, disconnect the driveshaft and dyno in RWD only.

 

are you saying you put your AWD car on a 2WD dyno?

Did you turn off PSM?

 

wait are you putting a awd car on a 2 wheel dyno ? if so no wonder you are having issues . you will kill the front driveshaft !! you need to disconnect the front DS and dyno in RWD , like robin said.

 

They do have older AWD dynojets, the front and rear drums are not a connected as required for our cars. So he could possibly using one of these and f'n his car up.

Dynojet realized the need for a connected dyno and has released the new 242Linx AWD connected dyno.
http://www.dynojet.com/automotive_dy...o/default.aspx