I don't think it will really make too much difference because the cams are virtually the same. However overlap isn't the only problem. Lift and duration come into play as well and create tuning problems. Thats why you don't see street cars running high camshafts and turbocharging at the same time.

 

/ Yeah, that's what I was thinking. The ECU will be thinking that the chamber is receiving air based on the 2.0 cam but in reality it gets air from the 1.8L. I think it would be difficult to get a smooth fuel curve no??

 

so... for turbo... the cam is useless.... it would be better the pulley....

and other mod that works good for turbo as good as for a N/A?? not too much expensive?

 

It isnt worthless, it just makes your car a little more time consuming for someone to tune. It still stays open 6 degrees more even with the extra 2 degree overlap so you will still get gains off of it.

 

so the only thing bad is that I will have to take to a tune it shop....

and here where I live there isnt one!....lol