Biggest cam size for a turbo M20 application??

[shadowracer]

Hello all, I'm just wondering what the biggest cam anyone has run in a turbo application?

I'm not worried about daily drive ability as this is not a DD. This car is a street/track car, the "track" being a road course.

I've recently built a 3.1L stroker for my car and will be changing the cam in the very near future. I've seen (read) that many run nothing bigger than a 280-283 cam. So I'm wondering again if that's the only way to go? I'm thinking either schrick or Catcams, now leaning more towards Cat...

...Thanks in advance for any and all info.

[sayed ali]

Z45 or Z58 turbo cam ..

http://server.pure-pf.com/webshop2/index.php?id_category=90&controller=category&id_lang=1

[Nisse Järnet]

Z45 works great for up to around 700whp with very good low end. I used that for my previous M20 turbo.

[shadowracer]

Thank you for the info. guys. "Nisse Jarnet" how did you get so much power? was it all boost, if so how much? what kind of fuel? what was done to the motor? If you don't mind sharing some info? ...That is a lot of hp from an M20!!

[Nisse Järnet]

Thank you for the info. guys. "Nisse Jarnet" how did you get so much power? was it all boost, if so how much? what kind of fuel? what was done to the motor? If you don't mind sharing some info? ...That is a lot of hp from an M20!!

It was nothing special really, cp pistons, PPF rods, Z45 cam, m52b28 crank and +1mm valves etc. E85 fuel and boost ramped up to 2.2 bar over 6000 rpm i think. All boost :)

[shadowracer]

Thanks again for the info. that's awesome!! It opens my eyes a bit to the potential of the m20.

[Nisse Järnet]

Thanks again for the info. that's awesome!! It opens my eyes a bit to the potential of the m20.

Yeah as long as the head dont crack M20 is pretty bullet proof :)