Miata Turbo Forum - Boost cars, acquire cats.

- Engine Performance (https://www.miataturbo.net/engine-performance-56/)

- - Oil Pumps (https://www.miataturbo.net/engine-performance-56/oil-pumps-27940/)

Quote:

Originally Posted by Joe Perez (Post 339712)

While you're in there, try to get the VR crankshaft sensor from a '96-'97 car, along with the little timing wheel that goes behind the crank pulley, and of course, the '96+ style pulley itself. Since you're probably not going to be running the stock ECU, this will give you a much more stable trigger source than the belt-driven CAS.

For the OEM crank trigger wheel, all one needs to mount is the OEM '96+ pulley boss (it is thinner than the '94-'95 one). The pulley itself doesn't matter - one can use any style '94+ pulley and its matching bolts/washer.
The sensor is a direct bolt-on on any '94+ oil pump. On '94-'95 pump one has to tap the thread though - just tapping, the boss is already there

Quote:

Originally Posted by Joe Perez (Post 340851)

Oh, not at all. I expect that the '01-'05 gears are identical in materials and tooling to the earlier gears, and thus no better or worse. I just meant that since billet gears are available currently for the '90-'00 cars, that for those building hi-revving engines the potential for breakage is only a concern if you have a VVT car for which said gears are not presently available. (My understanding is that they are forthcoming.)

Are you saying that the current Boundary Engg gears won't fir in VVT blocks?