Whats the lowest Rpm you can start a dyno Run ?
07-08-2009, 07:26 AM
#5
with a 6 speed car, you want to make the run in 4th gear. so starting under 3k would be a problem.
with an auto, you dont want the car to kick down to a lower gear, so you wait until a little over 3k to start the run.
with an auto, you dont want the car to kick down to a lower gear, so you wait until a little over 3k to start the run.
07-08-2009, 08:09 AM
#6
Mostly to keep heat out of the engine.We are looking at the torque curve and HP peak so starting too low is not worth it.On my dyno starting a run at say 1000rpm would throw the coolant temp to 230+ by the end of the run.So starting the run so low is not worth motor damage.
07-09-2009, 12:17 AM
#7
Only one time I started the dyno in 2000rpm it was in my friend's 04 Viper SRT10 full exhaust/ intake I wanted to see the TQ and let me tell that thing pulls hard 2000-4000rpm more than 4500-6000rpm LOL.
made over 440RWTQ at 2500RPM Peak TQ was 490RWTQ 4200RPM
I always start at 3000rpm though.
made over 440RWTQ at 2500RPM Peak TQ was 490RWTQ 4200RPM
I always start at 3000rpm though.
