Rb25Det Cas S1/s2

[RB30TI]

Hey,

I Bought a set of tomie cams for the RB30DET but there was a mix up when the company i bought them off and I cant get onto them to recterfy the problem.

So I have a series 1RB25DET head which had a metal CAS on it. The cams I received look exactly the same (apart from lobe) and also the alignment key for the CAS. I believe they are series 2 cams as I heard the neo cams run shim n bucket.

What I want to know is will I have any problems installing these cams and plugging in a series 2cas?

I had a search on the forum and couldn't find what I was lookin for.

Thanks in advance

Adrian

THE-31

[wolverine]

It sounds like you have late series 2 poncams, a trap for young players. There are dozens of threads on this issue unfortunately.

You need a black/RB25DET neo CAS and you should be sweet once wired correctly.

[RB30TI]

I believe that's what they may be, Any idea of how it needs to be rewired? Do the wires need to be repositioned in a different order?

[wolverine]

There was a thread on this about 2 weeks ago. If you search carefully enough the exact wiring changes are on SAU.

[N I B]

Just the 2 signal wires. Lots of threads over many years covering this so you will find what you need easy.

[RB30TI]

So I need a neo CAS? What's the difference between s2 and neo CAS? And idea of part number for the neo CAS?

[wolverine]

You need a neo or late S2 CAS.

If you specify a neo CAS you will be fine. If you ask for a series 2 CAS you may end up with what you have.

Have you done a serious search?

[RB30TI]

Yeah did a seriouse search typed in "crank angle sensor" found more when I typed "CAS"

http://www.skylinesaustralia.com/forums/topic/381276-cas-help/page__p__6082659__hl__cas__fromsearch__1#entry6082659

http://www.skylinesaustralia.com/forums/topic/381591-car-not-running/page__gopid__6117745#entry6117745

[Zorro]

yep fyi, the key for a series1 is a half moon & late series2 is square!

[wolverine]

How about +poncams +cas in search or some variation?

[RB30TI]

Yeah the search bar isn't the greatest but, it's not only poncams I was looking for it's just if someone knew about std neo cams running in a s1head.

But think I've found out now I just have to swap the wires around when I run the neo CAS.

Thanks for your help with it all.

[blue_vl_t]

here mate....

http://www.skylinesaustralia.com/forums/topic/114187-rb25det-tomei-poncams-problem/

http://www.skylinesaustralia.com/forums/topic/308113-rb25-poncam-install-problem/

sometimes try searching using google, works well, and easier to find older threads

[blue_vl_t]

The boys sound correct, just get a neo CAS, the power and earth wires are the same, but the two signal wires need to be swapped, done.....

[Kenna802]

Im not to sure about just changing the 2 signal wires. In my thread somewere it says that the plug is to be changed 1-4 2-3 3-2 4-1 Hope that helps by the way i have a r34 cas sitting here that i dont need anymore

[RB30TI]

Thanks for that Simon looks good, now just gotta find a plastic CAS, when we get the31 over here we will have to have a play with it.

Sort yours out yesterday Simon?

[chuckie]

neo cas drive ,

[Dose Pipe Sutututu]

To be exact, those plastic CAS units came in 1997 and 1998, last of the Series II R33s. However saying that, I have seen a 1997 Series II witha metal CAS, go figure!

[RB30TI]

So safe to say that plastic CAS will be what I need

[blue_vl_t]

KENNA802 says he has one spare, may as well shoot him a pm.

Updated on my car mate, can be found here

http://www.skylinesaustralia.com/forums/topic/383599-strange-mapping-problem/page__gopid__6119416#entry6119416

[roolis]

hello guys,who has 100% answer,not the internet search one,about repining of CAS.I need to repin R33 Mitsubishi Cas to R34 Neo Hitachi Cas,i found several answers,so which one is the correct one?Most common answers are that R34 Hitachi Cas plug is the mirror type of Mitsubishi one,is it prooven?Alot guys write,that some CAS'es need trigger wires switched,while power and ground are same,can somebody confirm one or another?