Woot! High compression acheived!
- Author: Cleats Onionpockets (---.suth.com)
- Verified User: chibichan1701
- Date Posted: 05-06-08 11:26
By milling the head down to the fins, I’ve boosted my little Puch 1.5 hp bike up to 193psi of compression! Problem is, now when I get it up to about 35 it starts pinging and knocking something fierce, even with premium (89) gas. If I retard the timing, I lose acceleration. What should I do?
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