Installed new cams in my 13 SG, Andrews 57h and it seems the engine is running hotter or I feel more heat than before off the engine. I have PCV with Autotune and map from Fuel Moto, so I know its not running lean. Is this just the nature of the beast?

 

Well I cant comment on the 57h cam. I have the woods tw-222. I will say it gets hot faster at idle in traffic than before. I use my power vision to monitor head temp. While cruising it doesn't get any hotter than it did on stock cams. Cruising I usually see about 260-265 degrees F on the front head.

 

Well ya can't fight physics, you added more lift which in turn adds more fuel and air which makes more heat. So yes your gonna be running hotter

Batman

 

OP, I don't see your exhaust mentioned.
If you are running stock with converter, it will become hotter quicker due to the fuel enrichment.
I am running the 57H, S&S Power Tuned duels and T-Max tuner. I also have cooling fans.
Mine is far cooler than it ever was.

 

Have to yanked the plugs to verify your bike isnt running lean? If you have a cheap laser thermometer from harbor freight you can give them the head pipe temps over the phone and verify that is within operating temps.

Are you running higher octane with your mods? Have you always run 91 octane? I live at high altitude so using high octane in anything I own using kicked a too rich code for me. I just filled up using low octane and it runs better for my altitude, I am still breaking mine in so I am still short shifting and wont know for sure until I can start letting it rev.

 

Is your tune / timing correct ? I run a 03 RK 95" - 10.5 compression - Woods TW -5 cam similar specs to your cam , but more aggressive - harder ramps- A Thunderheader - I run an oil cooler no fans - I have the fairing lowers on - my front head temp off the factory sending unit will run 230 - 40 . That's in Fla 90 - 95 degree temps, around town, in traffic. same temps after a hard fast run (80 - 90 mph) across the state in 95 degree temps - do you get any pinging/ detonation? Eastcoast Jim

 

It is all about the tune...

 

X2 - what the Hippie said - your Andrews 57 is a higher lift - shorter duration - early intake close - it will build a higher cranking pressure, you probably will have to pull some timing out. It will be a good torque / bottom/ midrange cam Eastcoast Jim

 

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" the engine is running hotter or I feel more heat than before off the engine '

Yet again,here's a good reason to address the excessive heat stock & esp modded HD's generate esp in summer heat.

Here we go again!

Now thats summer is in full swing across the US this (Excessive heat) is something we are going to see posted here time after time with guys posting all sorts of heat related issues form degraded engine perf to heat related rider discomfort issues that can be significantly improved for those that have an open mind that will allow them to do so which isnt always the case.

Since you have already address the lean fuel calibration with auto tune thats a goiod starts ,but if your bike still has a cat gut that too.

Then do what i did to my bike that reduced oil temp 50 deg f in summer heat which made a significant improvement in engine perf & overall riding comfort which was i installed an Ultracool oil cooler with twin cooling fans (KEY TO MAX COOLING) along with Wards fans (Very Worth While Too) both @ the same time.

Doing just that to my 09 flhtcu with basically stockTC-96" resulted in the following:

* reduced oil temp 50deg f.

* cooling oil 50 deg f also reduces overall engine temp @ the same time too so there is a bit less heat hitting the riders making the bike more pleasurable to ride esp in summer heat.

* motor now maintains a solid 18psi @ idle & 45psi+ @ cruise (10-12psi higher!),oil pressure at all times in summer heat. Prior to cooling it was 7-8psi @ idle & 32-35psi ish @ cruise.

* valves / lifters remain quiet.

* motor now retains the pwr/trq & crisp throttle response it used to always loose in summer heat

* hot starts are easier/faster because motor/starter/battery are less heat soaked.

* no more detonation.

Bottom line is no matter what others may say that have never tried addressing heat issues on their HD like i did that i know from 1st exp doing it " any stock to modded air cooled hd " will significantly benefit from installing the 2 cooling mods i did on my HD that cooled oil 50deg f in summer heat .

Any stock or modded HD should obtain the same approx level (or close to it) of improvement in most if not all the areas my bike did post install of the same 2 cooling system mods as stated above.

And when talking an air cooled modded HD motor anything you do that will significantly reduce oil & engine temp will put the motor in a position to maintain more power & perf at all times along with also providing a bit cooler more comfy enjoyable bike to ride @ the same time too.

Happy motoring.

scott

 

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