EVO Rebuild
Cruiser
Joined: Aug 2008
Posts: 190
Likes: 25
From: Rotterdam, Netherlands
True that. I ditched my V&C chimneys for the same reason.
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Road Master
Joined: Nov 2013
Posts: 1,216
Likes: 286
From: Buford, GA
Mikuni is a little crisper and hits harder but it's a lot of money like the tuner said.
Next question, did the tuner feel it was acceptable to have WOT AFR's peek at 12.5 and fall off to 10.0? a carb is a prehistoric metering device but can still hold better numbers than this run, you have power left on the table. I've ran both a modded CV and Mikuni 45 on the same engine with a digital AFR reader and both could hold a consistent AFR during a WOT when dialed in.
Something else is a 16.0 on the throttle wack, that is in detonation area, need to get the bike to someone who is going to tune it using the good equipment unless this was just a numbers run, either way you have work to do addressing probable detonation area especially in Summer temps and the back end flood.
Next question, did the tuner feel it was acceptable to have WOT AFR's peek at 12.5 and fall off to 10.0? a carb is a prehistoric metering device but can still hold better numbers than this run, you have power left on the table. I've ran both a modded CV and Mikuni 45 on the same engine with a digital AFR reader and both could hold a consistent AFR during a WOT when dialed in.
Something else is a 16.0 on the throttle wack, that is in detonation area, need to get the bike to someone who is going to tune it using the good equipment unless this was just a numbers run, either way you have work to do addressing probable detonation area especially in Summer temps and the back end flood.
I will get back with the shop that ran the dyno tune and work to get the AFR dialed in. He did tell me the throttle response wasn't great. Also look at a better pipe for the hp.
Yeah Tommy C...I'm still running the Rush 6022 ST. Guess I need to rethink those too.
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