so I have been running monster stocks at the local track in my woods lildog and doing pretty well. but I decided to get a couple of the CO27 motors from Thunder RC and was just wonder if anybody else was using the CO27 and how much higher did they go on the rollout? I was running a 42mm or 1.63" on the monsters and tried to go up to a 44mm or 1.73" but not sure if I need to go to a 45mm 1.77" or 46mm 1.81" it's a 95' line with a 12'x30' center. I know on the monsters if I go to a 44 it just bogs yes I could gear up and see but I'm not a regular oval driver and don't know if I could tell the difference if I did. we are turning 2.9 and 3.0 second laps.

i have found that around 12 points in inches has bin the best for us so far

Mike O'Brien
RIP motorsports

good thing you said 12 points, cause i know you aint got 12 inches, lol

12 mm

I Went From 1.65 To 1.76 Hope This Help All Of This Was Because My Master Mike Obrien Told Me This!

it mite be littel but its cute!!

if you were running a 163 173 sounds right