Compression numbers

[mountain80]

So I thought I would check around on what everyone is getting for compression numbers on their modded HT. I was getting 95psi stock at 4000 feet altitude and with the work i've done it is at 160psi. Its been like that for over 3000 kms now and no problems. I did port and polish and match as well as taper bore the carb and took 0.050 off the head. I also changed out the needle bearing to one out of a stihl chainsaw for better reliability. Any ideas how far we can go before she pops the rod????(Yah I know just before she pops the rod lol)

 

[Junster]

Lol Murphy stay away..

 

[Mountainman]

hey mountain -- you are up to 160psi -- that's pretty high there !!!

and she's holding up well

always a good thing MB

 

[mountain80]

Yah shes up there, did change all the bearings and am careful not to over rev it, maybe that helps.....