Generally, somewhere in the 100 psi range, with a minimum of around 80 - 90 psi.
I should be equal on all cylenders and about 110 to 120
125 is the least
The more boost you use the lower compression you want. Higher compression with boost leads to detonation which leads to excess engine wear and damage.
as much as you whant
between 90-120
23:1 compression ratio
if you have an inline 4.0 v6 motor it should have about 190 hp on the motor
My daughters mini bike with a 3hp Briggs has 80psi compression and runs great. A motor I got "running" off eBay has 55psi compression, runs but has NO power. -Jason
it stops running motor wont crank or even move should have 0 compression to.
Fuel, compression and spark.
The compression ratio is 8.5:1 supercharged motor and 9.4:1 for the non-supercharged motor.
155-160 good used 170-175new