Rb25 Head Modified Chambers- Ppls Thoughts

[akaaa7]

hey people, bought a recoed head with modified chambers, would like to see what people thoughts (good and bad) r and if this will lower the compression ratio much. bout to start designing my 30. goin for a moddest 270shkw responsive, 9:1 ratio, revs 7k, keeping vct, power fc. using as some stuff off my current setup c how far it takes me s15 480cc injectors, z32afm, lightened flywheel, power fc ect. lookn at maybe a gt30 turbz want decent boost by 3 k. after torque not out right power. any thoughts much appreciated. cam

[KiwiRS4T]

No idea. I guess you will have to measure it, compare with a stock one and compensate with different pistons if necessary.

[Adriano]

For the power you are after, it wont make much difference, i would measure the head volume,. Probably find some 9.3 cp's will make up for the head mods and end up around 9

[akaaa7]

didnt no cp made 9.3 pistons ill hav a look into it cheers guys