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i have NEO 25det controlled by ECR33 ecu. NVCS is wired correctly and working in some way -- i`ll try to disconnect it and try to see the difference :(.

sweet that would be awesome

Guys just a little confused I have CP pistons for 25/30 (compression 9.0) now can I or can I not use the NEO head? THANKS

Im assuming that these are the dome top pistons, if so you will end up with about 10:1, only ccing it will tell you though.

there flat tops

Then they should be good, still need to cc the package and figure out which head gasket you are going to use to determine your final comp. As for running the neo vct on an r33 computer, i dont see how it could work properly, as ive been told the neo has about 40deg inlet adjustment, wheras the 33 only has about 10, which is swiched, not variable. I guess you could fit a 33 camwheel and then it should work the same

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