XRAY - Model racing cars

Hi,
I am looking for information for a setup and settings on XB8e 15 " with a Tekin Set ( RX8g2 and T8g2 1900KV ) .
for economical , competition -grade operating on outdoor tracks.
And one more question , why has XB8e 15 nor the carbon bridges of 14er nitro model?
For tips I would be very grateful , above all with respect reducers with these components.
Greeting Tom

here is my setup.. think you will like it.. xform/index.php?act=edit&ID=31&setup=xb8e

very locked in rear end. im still testing some front end stuff.. to get rid of the dartiness. but its very good on loose..

Thank You ,
I see you drive 16 T Pinion Gear , what ist the Temp. of Engine and ESC ?

the temps dont turn on the fan on the ESC.. and the motor i dont ever temp it.. i been using this motor for well over a year.. no issues....