Thanks Alan . some nice details on the S2o I hadn't seen before ,
I'm still looking and modelling ideas in CAD , its good to have all these different takes on it to get idea's from,
The main issue is still that RB cams are longer than the L-gata one, and would have to machine away most of the top cam bearing support to get it anywhere near in line,
I've ordered a couple of bearings to mock up a chain drive for now ,
I also managed to get a RB20DET lower induction manifold that will help with sorting coolant from the head and can be modified with DCOE pattern mounts for the webers or ITB 's along the line
Would it be possible to minimise the amount of machining required on the cam bearings to a safe amount by fitting an 'XX'mm sandwich plate between the timing cover (similar to the S20 arrangement) and the block, complete with oil and water passages/ports using an OEM gasket on either side?
This sandwich plate would also give you a solid base for an idler/tensioner system if fabricated from a suitable material.
The bottom sprocket and oil pump drive could then be spaced forward by the same amount, keeping them in the same position relative to the front cover, retaining oil pump operation and distributor function if it is required.
The same 'XX'mm size of spacer would have to be fitted between the crank nose and crank damper as well as a longer crank bolt fitted.
The limit of dimension 'XX'mm would be determined by the amount of damper engagement you could safely lose.
Who knows, there may also be a couple of mm to be gained from trimming the oil pump drive.
