Running hot after cams
Road Captain
Joined: Jun 2007
Posts: 716
Likes: 24
Those 255's are very hot running EPA compliant style "performance" cams, the CVO 110's came with them and glow exhaust pipes cherry red, especially rear cylinder...and most guys remove them to cool down their bikes by using Fueling 574 cams or others. If you don't have a tuner or at least a 255 download map from HD then you will need such.
In the twin cam upgrade world 255's are not considered an overall great upgrade. But you got them so cool it down with more fuel.
In the twin cam upgrade world 255's are not considered an overall great upgrade. But you got them so cool it down with more fuel.
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Novice
Joined: Jun 2015
Posts: 18
Likes: 0
From: Washington
I do have a V&H FP3 and they sent me a flash for them. I did look at the air fuel ratio on the map details and at 100% TPS and 6000 RPM it is at 12. Should it be closer to 8? At idle and normal riding it's at 14.3 for the most part.
Road Warrior
Joined: Aug 2008
Posts: 1,318
Likes: 26
255 is not that hot unless you just went down the block. Lol. My guess everything is ok. Any detonation? If not just ride it man. 😀
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Extreme HDF Member
Joined: Aug 2013
Posts: 16,271
Likes: 15,108
From: Somewhere SW
I had 255s in my bike for about 10k miles, I loved the torque.
The thing I noticed about the heat wasn't that the engine would get hotter but it would take longer to cool down after coming out of heavey traffic.
My normal running head temp would be 266f while cruising, the highest I've recorded was 360f in stop and traffic with the outside Temps around 100f
The thing I noticed about the heat wasn't that the engine would get hotter but it would take longer to cool down after coming out of heavey traffic.
My normal running head temp would be 266f while cruising, the highest I've recorded was 360f in stop and traffic with the outside Temps around 100f
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Tourer
Joined: Apr 2015
Posts: 263
Likes: 1
From: SoCal
It's not running hotter while riding, just takes longer to cool off after you shut it down? If so, cool down with the engine off has nothing to do with cams, most likely you paying more attention to the bike and looking for problems. This is a good thing, but sometimes you find things that aren't there.