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10-11-2015, 07:38am
Base spacer is better way of doing it , head gaskets are a very hi load area and you dont want to compromise the gasket by adding more layers (its how they do it with a 1000 as the cyls are part of the cases )
you can use adjustable gears, definitely one option if you used a .080 spacer for higher boost levels , but you can also reset the cam gears timing by rotating the crank gear backward on the spline , because of different numbers of teeth on the crank spline and timing sprocket you get about .9 deg change /tooth , a .080 spacer needs 5 teeth to put it back to std , and std is fine for most street use stg 1 kits
valve overlap is not realy a problem, your limiting factor if you turn the boost up is the turbine housing , the velocity turbo your getting is the same size i run on my 750 Landspeed bike and i have seen exhaust backpressure issues at 25+ psi on that
different ceramic for pistons , but same principal, look at HPC online , they give a good description of what each product does
After loosing some stuff in a bushfire , one thing i found funny was a spare race motor completely devoid of any aluminium , but the ceramic piston top , rings, rod and pin, all lined up in perfect order and i suppose same position, inside the niccasil cyl with studs and copper gasket supporting it , kept the piston top and always intended to send it back
you can use adjustable gears, definitely one option if you used a .080 spacer for higher boost levels , but you can also reset the cam gears timing by rotating the crank gear backward on the spline , because of different numbers of teeth on the crank spline and timing sprocket you get about .9 deg change /tooth , a .080 spacer needs 5 teeth to put it back to std , and std is fine for most street use stg 1 kits
valve overlap is not realy a problem, your limiting factor if you turn the boost up is the turbine housing , the velocity turbo your getting is the same size i run on my 750 Landspeed bike and i have seen exhaust backpressure issues at 25+ psi on that
different ceramic for pistons , but same principal, look at HPC online , they give a good description of what each product does
After loosing some stuff in a bushfire , one thing i found funny was a spare race motor completely devoid of any aluminium , but the ceramic piston top , rings, rod and pin, all lined up in perfect order and i suppose same position, inside the niccasil cyl with studs and copper gasket supporting it , kept the piston top and always intended to send it back