sure
sorry for my english .
with the big one you would have to deal with big sprinters that was too strong for direct drive without gearbox
so i make it smaller then the original with smaller sprinters 25mm by 5 dia. and m3 screws 40 mm long .
im using this brass insert can be purchase here -[
www.cornwallmodelboats.co.uk]
with this design you can attched the fan exactly like mk 7 .
motor , alum , plastic parts and fan are all toghter 75 mm long
because the sprinter gives a strong pull but not too much to couse skips there no needs for fine tuning and good extruding , just screw the m3 all the way in and your are set .
