Zip zero nothing, tried that isolated before modifying the head.
Zip zero nothing, tried that isolated before modifying the head.
For a 450 trails bike the heads are pretty good imo, in the perspective of a high performance engine its not doing particularly well no.
These heads were not designed to be high performing so it will take some dramatic moves to change that, BUT you need to know where the narrow section is, and that is the heads wont flow enough to make any top end as they come. And still with a decent flowing head the cams arent going to lift enough to get any real performance out of it in perspective to other high performing bike engines.
Edit: While talking with Jens he said that no development was done for the 570, this model only existed in a market perspective on paper for the dev team.
These heads were not designed to be high performing so it will take some dramatic moves to change that, BUT you need to know where the narrow section is, and that is the heads wont flow enough to make any top end as they come. And still with a decent flowing head the cams arent going to lift enough to get any real performance out of it in perspective to other high performing bike engines.
Edit: While talking with Jens he said that no development was done for the 570, this model only existed in a market perspective on paper for the dev team.
Last edited:
Joined Jul 2016
596 Posts | 281+
Australia, Beechworth, Vic.
Here's a revelation for you Taffy - A cyl head has an intake. He didn't say 'throttle body', he said 'intake'.
Last edited:
Joined Jul 2016
596 Posts | 281+
Australia, Beechworth, Vic.
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