Rb25 Series 1 To Series 2?

[mr_strong]

I tried searching and digging through some old threads and couldnt come up with a answear. So any help would be appreciated.

So I currently have a blown RB25det series 2 in my car and just purchased a series 1, so my issue is how do I convert the Series 1 to a 2?

Do I just use my series 2 coils on the series 1 as my car is wired for the series 2? this seems like the most viable solution.

[lachlanw]

yeah should be all g

[mr_strong]

I thoguht so, just needed someone elses input.

[TiTAN]

the CAS is also different

[bryce19]

i recently done this i just swapped coils over and all was good

[mr_strong]

Can someone confirm the CAS as i have both just need to know if I need to swap them. Not a huge deal as its not a hard swap but rather do it right the first time. Thanks for the input this makes my life easier!

[maximajim]

Only if it's a very late S2 RB25 the CAS willl be different. Coils/AFM/Throttle body/tps will need to be swapped over.

[mr_strong]

No its not a late model engine. Does those swapped parts you mention only apply to late model? just to clarify

I believe my Series 2 is a 96/02 build

[paulr33]

hello

the ecu is the same for series 1 and 2 so the differences will be on the physical side

ie series 1 tps vs series 2 has different plug, but all work the same according to ECU

the series 1 and series 2 are same, but series 1 has an extra ground wire

likewise, minor differences, they work the same, just phyiscal difference

[(OO)Firty Free(OO)]

Is it just the CAS thats different on the very late S2 engines or are there other differences (internal/external). Would be interested to know considering its very close to the first of the NEO build.

[paulr33]

the 1998 R33 builds have the ER34 RB25 style CAS

it works the same, runs the same, voltage the same

just looks different - ie its the ER34 CAS

[(OO)Firty Free(OO)]

the 1998 R33 builds have the ER34 RB25 style CAS

it works the same, runs the same, voltage the same

just looks different - ie its the ER34 CAS

Yeah i have a Dec 97 and its got the plastic cas,just wondering whether it shared anything else with the 34 or is that it.

[paulr33]

could be other parts hidden away, no way of telling other than visual differences

[maximajim]

The exhaust cam Drive for the CAS is also different for the VERY late S2.

The oil pickup/strainer is different. One is o-ringed while the other requires a metal gasket.

Edited February 26, 2009 by maximajim