Originally Posted by Heinrich
Im from South Africa and take part in stockcar oval track racing.I would like
to built a relaible engine with good performance.
The engine need to rev 8500rpm and dont exceed 2.1 alot have tried to built
motors with mercedes rods but it does not last what rods can we use to make the bottom end bulletproof and piston to accomidated the right ratio what would be safe.What would be the right cam to use for the type of racing
Someone also mentioned something about the sump and oil pump gears.Can somebody please help as cheap as possible.
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the 2.0 OHC (86x86mm) has a relatively low rod ratio of 1.663
but piston cd is already 30.5mm so there is not a lot of room to accomodate much longer rods.
maybe you can make custom forged pistons with cd 26.5mm
then you need 147mm long rods but I don't have cheap suggestion for that length,
and rod ratio would only be slightly better (1.71)
HTH,
Hiro