Rb20 -> Rb25 Neo Swap, Any Flaw In My Plan?

[maxgohan]

ok i'm going to keep the rb20 ecu and wiring harness and swap in a rb25 to make it work.

i'm also keeping the rb20 CAS and swaping in r32 gtr cams into the neo rb25

i know i would need to reprogram for fuel but will the cams run fine with the rb20 ecu?

[paulr33]

for the $ involved - look into 26 instead

[666DAN]

NEO have variable cams, the R32 GTR ones won't go in as far as I know.....avoid the NEO altogether, so not worth the hassle

[maxgohan]

NEO have variable cams, the R32 GTR ones won't go in as far as I know.....avoid the NEO altogether, so not worth the hassle

too late, i already have the neo, i got it on the cheap so just thought i'd make it work?

[666DAN]

too late, i already have the neo, i got it on the cheap so just thought i'd make it work?

My advice, sell it and avoid months of pain and $$$

[paulr33]

agree %100 - sell it

[maxgohan]

wow, you guys make it seem like this engine is the devil.....

ive tried selling it but no luck here, is there nothing else i can do with this?

[Adriano]

Dont listen to them, put it in, use the rb26 exhaust cam and CAS, either leave the stock inlet cam, and use a jaycar device to switch the VCT, or fit an rb26 inlet cam with rb26 camwheel, then you loose the vct, either way not too hard. everything else should be fairly simple, you may wish to use an r33 throttle body to get rid of the big TCS throttle body. Give her 12psi with a good remap, and you should see over 200rwkw

[kdwebber]

I have an rb25 neo in my r32 gts-t right now. GTR cas, gtr cams, series 1 R33 wiring, series 1 maf, series 1 ecu, and series 1 coil packs. It is a very easy swap and you should have no problems with it.

Cheers, Kyle