Freestyle Pistonwash? What ya think?

[glennbbautomachine]

Zzylstra nailed it. The amount of air and fuel don't change. You are simply squeezing them tighter, creating a more violent (reactive) explosion, resulting in more downward force on the piston. Jetting typically won't need to be changed. Timing, plug heat range, and octane, however, may need adjusting.

Yes a quicker burn will occur from increased compression which requires a change in fuel octane or timing adjustment.If you have a 100hp engine then use same carbs on 150hp engine that would not require a jet change? This is a exaggerated example.

 

[Philip Clemmons]

Yes a quicker burn will occur from increased compression which requires a change in fuel octane or timing adjustment.If you have a 100hp engine then use same carbs on 150hp engine that would not require a jet change? This is a exaggerated example.

I'm not on here to start a debate, or argue with you. There was a question asked, and I answered it, in an attempt to be helpful. If you don't agree, that's fine. I was simply trying to help. I'm done going back and forth now that I see your intent. I'll end with this.........BSFC.

 

[Mentzel]

right piston is a little rich. Left looks about right. How is your cooling routed? I had to really work on my Dasa 900 cooling to make it burn even. Watch out for powder black, that is the first sign of detonation issues. Dark brown is good, powder black is bad. White comes next just before piston melts.

 

[Christian_83]

My routing is:
normal cooling line goes to fitting on PFP manifold, big cooling line (cant rember size Goes in Y, to PFP manifold and other split to PFP chamber.
I got 4 outlets on the DASA cylinder top, the farhets front and back goes in Y and into a pisser overboard
the two in center of cylinder goes in Y and in a pisser and overboard
the outlet after the stinger (wich has the "stock" sandfilter and flow valve) goes in a pisser and overboard.
Keep ind mind the Danish average water (and air) temprature is lower than in the US. :/

 

[glennbbautomachine]

I'm not on here to start a debate, or argue with you. There was a question asked, and I answered it, in an attempt to be helpful. If you don't agree, that's fine. I was simply trying to help. I'm done going back and forth now that I see your intent. I'll end with this.........BSFC.

Yes I'm not trying to start a debate either just giving my point of professional view.35 years building and racing engines of all types and running an engine dyno is where I get my info from.Damn I'm old.lol