At the club that pro10noob mentions we first go through a long sweeper leading up to the straight so we already are accelerating quite high when we go on to the straight. The straight is around 70 meters but with the sweeper added it is roughly 100 meters alltogether.
The track is where next years World Championship takes place. They have put a removable chicane on the straight now as there is a high chance that modified tc are ripping their tires apart. (happend already a few times) and to let the straight be less important. (remember hara blasting everyone by with his boosted modified setup during the ETS a year or so ago?
)The modified tc go roughly 115km/h there at the moment what i remember.
I have my rollout at around 38mm plus or minus 2mm for different tracks. With a Xerun120A and a xerun 10.5t motor and a mild program we reach indeed 95-100km/h on the straight with our 10.5t pro10 cars. (speedtrap)
We drive 7 minutes races so have to adjust the rollout and program accordingly to drive 7 minutes instead of 5 minutes. On average my motor is 60-65 degrees C after 7 minutes race. The highest i had this year was 70 degrees C and this was during sunny weather. In 5 minutes races we could get the speed/acceleration even higher.
We use pro10 bodies so our topspeed is high without creating too much drag on the straight. I myself am using a medium downforce body on 1/8 tracks. It depends on the traction availlable ofcourse but medium downforce seems to be a good balance between topspeed/acceleration/downforce/ heat of the motor in our 10.5t class.
On small 1/10 tracks i normally use the peugeot 905b HD or the andy sauber mercedes with a gurney added. The electric tracks have less traction hence the higher downforce bodies.
I am not sure if a GM motor is faster then any other motor. I have found that my hobbywing xerun motor is not lacking any speed against any other 10.5t motor availlable from any brand even though they would claim the oposite.
Even the corally motors are the same when aplying dynamic timing and they are the bomb in zero dynamic timing classes together with the graupner motors.
I didn't notice any difference of top speed when i was behind joost with his GM motor or M7H with his LRPx12. We were sometimes a meter apart on the straight with 3-4 cars and not gaining or loosing anything on the straight so i can safely say it really doesn't matter.