Which is the best tuneable engine ?

[Biggs]

Hi im thinking of building a project car using a rx7 engine and was wondering which is the best to use (if they are not all the same) to take upto mabye 450bhp ?

[kev-yorks]

The easiest to engine to get to mega hp levels is the Cosmo 13bre/20bre  engines if you only want 450fly hp then any of the FD twinturbo 13brew engines will get you there with single turbo and porting. They are basicly the same engine but the Cosmo version has larger diameter runners so breathes that bit better. You also have the option of the 20b three rotor but your talking lots of £ for this option. Hp wise with a 20b it\'ll do about 300hp N/A before you start adding turbo\'s then the sky\'s the limit 500/600hp on stock ports and about 1bar of boost. With porting and more boost?
Hope this helps.
Kevin

[Biggs]

Hi thanks for you reply yeh it does and it dosent help sorry i should of stated in the first post id need to know which model and year of car too be looking at buying