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rb25de neo cams on a rb25det s1 head

eli995
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eli995 Apprentice

eli995

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i have a rb25 na neo head with cams and i want to know if these will work on the s1 det head or if i should just go and buy det s1 cams. tia also if there's a thread already created with the solution a forward would be much appreciated. im also in search of wiring schematics for the fuse box as some of the wiring is pooched.

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GTSBoy Grand Master

GTSBoy

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The base circle dimension would need to be identical on them for it to work. Beyond that, I don't even know if the cam journals are the same, if the attachment for the timing gears and VCT actuator are the same. The CAS drive is definitely different on the exhaust cam.

If the base circle dimension is not identical, then....lifters would be a problem. The Neo is shim over bucket solid, and the vanilla 25 is hydraulic. If you throw a cam with a different base circle onto a hydraulic lifter, you might take it out of its correct dimensional range and have it lock up or collapse.

I would just some Kelfords cams.

On 7/23/2022 at 8:36 AM, eli995 said:

im also in search of wiring schematics for the fuse box as some of the wiring is pooched.

The R32 GTR/GTS4 wiring diagrams are here. I shall presume from your profile that we're talking about an R32, and not something that came with an Rb25.

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eli995 Apprentice

eli995

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On 7/22/2022 at 7:50 PM, GTSBoy said:

The base circle dimension would need to be identical on them for it to work. Beyond that, I don't even know if the cam journals are the same, if the attachment for the timing gears and VCT actuator are the same. The CAS drive is definitely different on the exhaust cam.

If the base circle dimension is not identical, then....lifters would be a problem. The Neo is shim over bucket solid, and the vanilla 25 is hydraulic. If you throw a cam with a different base circle onto a hydraulic lifter, you might take it out of its correct dimensional range and have it lock up or collapse.

I would just some Kelfords cams.

The R32 GTR/GTS4 wiring diagrams are here. I shall presume from your profile that we're talking about an R32, and not something that came with an Rb25.

ok gotcha probably the safer route to go that direction anyway. and the wiring that attaches to the main fuse box. if I'm able to find that here as well then that'd be awesome.

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TurboTapin Rising Star

TurboTapin

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On 7/26/2022 at 12:45 PM, eli995 said:

ok gotcha probably the safer route to go that direction anyway. and the wiring that attaches to the main fuse box. if I'm able to find that here as well then that'd be awesome.

I'm in Canada as well and have RB25 S1 cams I can let go for 120$ if you need. PM me if ever you need them. Cheers. 

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