We've been through this countless times. I can claim virtually any numbers I like and since few actually have any way to check, I'm likely not to be found in error, just like all the mfg.'s.

Here they are again(and they are very close to being REAL!)

ALL DEPEND ON NITRO CONTENT OF THE FUEL AND LOCAL CONDITIONS!

YS 63- 1.6
YS 110-2.1
YS 140 Sport-2.7
YS 140DZ-3.0