Recent content by ianfolkson

I use Stp oil treatment fill before run stand hydro vertical and run heat. I don't remove flexi at all.

Put a filter between motor and tank just in case epoxy breaks down. I have seen nitro tanks moulded from vinylester resin. Still need to wash out after a days run .

I have no information on the system. Many countries wrote their own software and some bought software from amb and some other resellers. Some use modified car race doftware and some written by clever guys who understand programing. The races here in Hydro and offshore make the line go live at...

This type of system has been used in European and Chinese races for many years now. We have not raced with any manual systems for a long time. No more jump starts as transponder line goes live exactly on zero and no more remembering to put hand up to count.

Cmb factory do it by trapping clip in bottom of hole by lowering piston a little and then rotating crank to the chamfer on the top of the exhaust to push clip in with help of a non magnetic tapered thin rod. The staff lay out a whole line of motors ready for clips and Mauro goes along and puts...

Sorry not available seperatly case heated and ali liner pressed in and glued All cases assembled complete at the factory.

You can try to get it out at your own risk case is heated then ali sleeve is pressed and loctite in.

The aluminium sleeve CANNOT be removed. It is designed to push the gases into the small port at a higher speed. This system has worked before with good effect on special works engines built by Mauro and his father for team drivers. I still have one of them.

The GPX kit fits older Evo Motors and the new RS.3 cases. The latest GPX liner in the green motor has a smaller diameter of to match the pressed in aluminium liner

The New Green GPX has a smaller diameter liner unique to the new motor. The old GPX kit will fit the RS.3 case as well as the M line liners.

As far as I know the GPX TUNING KIT fits the M line case. The new GPX 91 Engine has a different diameter Brass liner. To fit the new case. I will check with Mauro for a definitive answer

There is no gpx kit as the 7 port liner does not fit the older cases. Only new complete motor. The 3.5 7 port liner does fit the existing crankcase but you have been able to buy the gpx 3.5 for some time now.

I am afraid thats just my insider knowledge. I will be racing with CMB in 2 weeks I hope to get a few inside photos.

New Gpx Green has 7 PORT liner plus a special extra liner from aluminium fixed inside The crankcase to adjust fuel flow in transfer ports. The aluminium liner must not be removed it is fixed in and the new motors have smaller cooling jackets.