ok busted S13 sent me the link to this thread:
zerothread?id=88453
This is a quoted post from it:"The AWD det engine is the same as the RWD engine, except for some minor mods on the intake, which will take about 30mins to convert a RWD to FWD/AWD det and visa versa.
The starter from the RWD is the Same as the AWD and the ca18de but different than the ca16de.
The flywheel on the AWD/rwd det is big,thick and heavy about 25lb
The ca18de flywheel is about 1/2 inch thiner than the det and but the same diameter, but the clutch on the ca18de is smaller in diameter than the AWD/RWD det by about 1 inch
The starter is the same location on all ca models, but the one on a ca16de engine is smaller in size.
The ca18det flywheel is about 3 times the size of the ca16de flywheel. the ca16de clutch is about 2.5 inchs smaller than the det clutch
PULSAR GTR"
I can buy a clutch from ACT that is designed for rwd ca18det's. I wonder if it will bolt to my fwd ca18de flywheel. the only thing i gether from this is that they are ever so slightly differant sizes, like 225mm (DET) and 214mm (DE). I cannot find much in the way for 100% answer!
thx in advance.