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The RB30E in the VL & R31 has the CAS inside the distributor, whereas because the RB20/25/26 twin cam motors run electronic ignition instead of a distributor they have the CAS as a single unit on the front of the exhaust cam, so as such you can't use a twin cam RB motor CAS on a single cam RB motor, if that's what you're getting at

Edited by Bluprint

if you are replacing the CAS, get a complete dizzy from a series 3 R31 skyline, these models have the Mitsubishi CAS and are a completely reliable unit.

the Hitachi CAS from the VL and aftermarket chinese copies are going to continue to cause you trouble.

you need the complete dizzy because the Mitsubishi CAS is slightly different and will not go into your existing distributor, you will also need the Mitsubishi rotor as well.

the caps are interchangeable however.

if you are replacing the CAS, get a complete dizzy from a series 3 R31 skyline, these models have the Mitsubishi CAS and are a completely reliable unit.

the Hitachi CAS from the VL and aftermarket chinese copies are going to continue to cause you trouble.

you need the complete dizzy because the Mitsubishi CAS is slightly different and will not go into your existing distributor, you will also need the Mitsubishi rotor as well.

the caps are interchangeable however.

oh great.... thanks a lot bud could have told me sooner...LOL

I just had it replaced and a whole bunch of other crap fixed to the tune of 1200 bucks.

but thanks for info will keep that in mind for the next time. :P

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