HPI R40 Conversion

[Z06jim]

Well, I finally managed to get this thing converted to Brushless with a lot of kludging.

Installed:
7XL
4s Lipo
9920
UBEC

66/20 32p gears (3.3)
65mm dia tires
diff ratio 46/19 (2.42)
Final Gear Ratio 7.99
Estimated Weight ~ 5lbs
Estimated Speed by spreadsheet ~30 mph
Stock Speed Nitro ~ 45mph


Issues are:
Gearing
Motor ~ 160F :013:
Controller ~ 110F :027:
Batteries ~ 110F :027:

Everything I've read says this is geared too low???? :032:
Gear center spacing is at a premium ~1 3/8" center to center minimum
Know where I can get a 22T 5mm 32p pinion?

Any Thoughts?