Racing beat won't do it. Pineapple's phone is busy. Too late to call Pettit. Anyhow since the 8 rotors are (lighter &) higher compression the 3mm NRS seals should offset that a lil bit (but not sure by how much) and also low boost (10lbs). If it needs to be milled for taller seals then it won't make a cost difference to mill them for 3mm.



There is only one person I know of that has used RX8 rotors in a RX7 but he is no longer with us and I do not know if he used RX8 seals or not.



Any help on this from the engine building experts?

 

you know you can get lighten the older style (none rx8) rotor even lighter than the rx8's aye

 

Yes, I know I can get older lighter high compression rotors but they won't be anywhere as cheap as RX-8 rotors. I'm not sure if milling would offset the discount.

 

cant remember where i read it but im pretty sure you have to run the older style seals, unfortunitly i dont know what sort of price you would be looking at to get them milled