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Originally Posted by low&slow
Renault Megane, Thanks for the suggestion. I'm interested in modifying the valve timing and the ignition timing and will have to try this out when I get a chance.
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Check around if there are some high compression pistons available.
The stated CR improvement together with your valve timing can give you a safe dynamic CR target.
The dynamic CR is basically a CR with stroke corrected to account for late closing of inlet => artificially lower capacity.
Also, I am sur of what I red but please check your valve to piston clearance before putting engine back together, I wouldn't want to be responsible for an engine failure ...
Ignition timing : the better the combustion, the less advance you need.
Trouble is you need to have a shop doing power runs for you and usually they are not asked to work on the lower RPM.
Are you aware of Megajolt and / or Microsquirt ?
One is a fully programmable ignition quite cheap but effective, the other, I can't remember if it has the ignition module inside (bigger version Megasquirt has) but it is a mappable injection.
Mappable ignition and injection are the way forward when it comes to economy since you don't use the bike as it was meant to and carburettors are a source of pumping loss by design, at least CV ones ...
Quote:
Originally Posted by low&slow
I've been working a lot at my new part time job and now have almost 2 weeks off so I can resume working on my Ninja. I need to replace the rear brake pads and I'm thinking about making a dustbin style front fairing. I need to be sure of finishing it before I leave for the 7/20 Ohio Vetter Challenge. I'm very impressed with Alan Smith's performance at the recent Carmel Vetter Challenge and I need to close the gap to be more competitive.
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If I were to spend 2 weeks on the bike, I wouldn't bother with engine jobs, even more with Vetter challenge being biased towards streamlining promotion hence higher speed were aero improvement are predominant.