Cat Cam 428s in a forced induction engine?

[Johnc172]

I had 428's fitted about 3 years ago as I was going to go down the ITB's route, I've had a change of heart and now thinking on a turbo.

Are the 428's worse than standard cams for a turbo'd F4R? Or will it make no difference at all?

 

[Chris205]

From what I've read, standard is best mate

 

[JoedotwasT5phy]

as long as you're not running big boost, i can't see that it would make too much of a difference - i guess it would just need to be mapped properly to suit.

Best Speaking to Chip etc.

 

[Johnc172]

Cheers all, I'm hoping chip will turn up soon...lol!

I'll be low boost initially, then probably low comp after a while

 

[Dan519]

428s are almost standard anyway. When you map for boost you completely change the vvt switch points so it shouldn't be a big issue. I'd use standard personally anyway.

 

[Rhys Beal]

Okay with a supercharger though rather than a turbo?

 

[Dan519]

be alright. Rotrex tuning is much more like NA tuning as far as the internals are concerned