On A M-8 a well setup kit should get 220 hp at sea level, uncorrected with 8 pounds of boost. I know about correcting hp on a dyno, on my dyno I have 3 different SAE correction factors I can pick from (dyno is not for sleds). None of which I believe are fair for a boosted application nor do I know of any correction factor that accounts for boost.
When I ride from 2400 to 8000 feet I have to add 2 pounds of boost to make up for lost HP and get my sled back to it's targeted rpm
When you are going from 10 to 15 pounds of boost how much more clutch weight do you have to add?
It sucks you can not get good fuel there, running 25 pounds of boost on AV fuel is messed up, there is no way you will see a good gain with it.
Should?... Have you put it in a dyno, then you see the result. You never get the same hp increase in a 2 stroke as you do on a 4 stroke. There is a lot of people here that have dynoed M8T and everybody gets disepointed how much boost they need to get 200hp. Need 10 psi to it above 200hp mark on a stock M8 engine with 28rs turbo. I have seen dynoruns from higer altitude, the higer they go the higer corrected hp tghey get..
10 psi is where the M8 is working best for the boost money and safety here..I gess it was 250prm diffrence on 12 psi to 14 psi with the same weights..
The increase above 10 psi much less, 15 psi is only to get whats max usable on this 28rs.. I will go for a bigger turbo next time with more lag ;-)
25psi is to get MAX on a dragsled, using NOS to get the big turbo to beginn spinning..
Anyway at altitude it seams like the Silber is working ok for the money.
At sea level we have always had a lot of problem bying turbo kits, pipes, bigbore and other tuning parts if they where only developed at hige altitudes..Even ported/piped sled at sealevel I have had to lower the compression to get it work without detonation on long pulls..
