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Author Topic: Update SERGU 110 Whats best bang for the bucks  (Read 2761 times)

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BluesRunner

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Update SERGU 110 Whats best bang for the bucks
« on: April 04, 2018, 08:58:39 PM »

I've got 20,000 on my 2011 CVO Road Glide Ultra. Thinking hard about swapping out lifters as preventive maintenance. I love the bike but the engine has always run hot. Its got a Fullsac CX pipe with 2.0 cores, TTS Tuner with Fullsac map. I had a Fat Cat and a power commander before that. Never found a combo to cool it down.
    If swapping out the lifters. What else should I do ? Could I change the cams to help cool it down?  What about getting the heads worked on and swapping out the valve springs?  I would like to keep the TTS and Fullsac setup.
  Any suggestion on a engine kit to have installed. Power is not my main concern. Cooling the engine down and touring longevity is. Thanks for any advice. BR
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hd-dude

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Re: Update SERGU 110 Whats best bang for the bucks
« Reply #1 on: April 04, 2018, 09:09:49 PM »

Changing lifters is a very good idea, changing cams can help a little but not a huge change in heat. I'd recommend the TTS 100 cam and a full tune by a competent dyno tuner. Try taking the lower fairings off. Won't cost you a thing but will make a huge difference.

fastfreddy

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Re: Update SERGU 110 Whats best bang for the bucks
« Reply #2 on: April 04, 2018, 09:50:06 PM »

even just removing the vents from the lowers will help out with some of the heat, if you want to keep the lowers on. i did that on my last bike (13 SERG). far as lifters go i have never had an issue with the stock lifters...cause i put them in the garbage can. your bike is at that magic millage number so i would for sure replace the lifters 
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BluesRunner

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Re: Update SERGU 110 Whats best bang for the bucks
« Reply #3 on: April 04, 2018, 10:15:36 PM »

I did remove the lowers when I first got it. It did help with the heat but the head buffeting was bad. So I removed the vent in the lowers and put them back on.  Its a good spring and fall bike but 100* days it will roast you. I'm gonna swap out the lifters but may try and do a bit more if it will help out. I'll have to have it done. Out of my field of experience.
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fastfreddy

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Re: Update SERGU 110 Whats best bang for the bucks
« Reply #4 on: April 04, 2018, 10:23:06 PM »

you may want to check with steve, he may have another map that could help. just a thought??
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hd-dude

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Re: Update SERGU 110 Whats best bang for the bucks
« Reply #5 on: April 05, 2018, 12:02:31 AM »

Keep in mind that a canned map is just that. What worked well for the bike it was created on it most lilkely will not be optimal for your bike. There is no replacement for a good dyno tune by a good tuner.

Remember that there is one thing that is consistent a with Harley's....they are not consistent!

HD Street Performance

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Re: Update SERGU 110 Whats best bang for the bucks
« Reply #6 on: April 05, 2018, 11:46:25 AM »

Head fans work best for cooling. Pouring fuel in is the strategy for some, not smart. A cam change will help a little but something with more sensible ramps is best. The cr575 is a good stock replacement.  If the heads are done guides and a spring change help both lifter life and oil consumption. The pipe and tuner you have are good as-is but a good tune is essential
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Texas 103

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Re: Update SERGU 110 Whats best bang for the bucks
« Reply #7 on: April 05, 2018, 01:14:07 PM »

Head fans work best for cooling. Pouring fuel in is the strategy for some, not smart. A cam change will help a little but something with more sensible ramps is best. The cr575 is a good stock replacement.  If the heads are done guides and a spring change help both lifter life and oil consumption. The pipe and tuner you have are good as-is but a good tune is essential

X-2 on the above  , The  SE 585 is also  good "stock" replacement cam, nice and quiet , power where you use it.   VSK -600 AV&V dual coil springs., >030 gasket, Depending what you are on  the head CC, shaving a little to bump compression.    NO more that.020 if it's a wet head.  There is NO substitute for a good tune!   
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HD Street Performance

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Re: Update SERGU 110 Whats best bang for the bucks
« Reply #8 on: April 05, 2018, 04:14:23 PM »

No use for those springs personally.
Just took a set out with low miles and pressure had dropped 15# seat from manufacturers rating. The tops were also tipped.
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BluesRunner

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Re: Update SERGU 110 Whats best bang for the bucks
« Reply #9 on: April 11, 2018, 08:53:19 AM »

Maybe I'll replace the lifters, install adjustable push rods and rocker lockers. Leave the 255 cam installed and get it tuned on a dyno. Then in another 20K or so look into updating the engine.
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rigidthumper

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Re: Update SERGU 110 Whats best bang for the bucks
« Reply #10 on: April 11, 2018, 09:16:40 AM »

Please spend a couple of bux and replace the inner cam bearings. I use 24018-10 from HD, or B168 Koyo from a bearing house.
I've seen too many issues to leave the originals in.
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HD Street Performance

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Re: Update SERGU 110 Whats best bang for the bucks
« Reply #11 on: April 11, 2018, 09:25:23 AM »

Maybe I'll replace the lifters, install adjustable push rods and rocker lockers. Leave the 255 cam installed and get it tuned on a dyno. Then in another 20K or so look into updating the engine.
Do cam bearings. Forget adjustable pushrods, no need. Use hylift B2313SE lifters. Use the rocker lockers.
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LMR

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Re: Update SERGU 110 Whats best bang for the bucks
« Reply #12 on: April 11, 2018, 09:59:59 AM »

Might as well check your cam tensioner too.  I believe it was DK customs that had a kit to lift the gas tank and supposedly allow more air in there for cooling.
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BluesRunner

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Re: Update SERGU 110 Whats best bang for the bucks
« Reply #13 on: April 11, 2018, 09:56:39 PM »

 I agree checking with checking cam tensioners. If you replace the cam bearing wouldn't it be smart to swap out the cams? To get  something to help cool down the engine.
 I don't know anything about a tank lift. I thought that was for looks. I'll have to look at the web site.
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RivRaptor

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Re: Update SERGU 110 Whats best bang for the bucks
« Reply #14 on: April 12, 2018, 12:02:24 AM »

A leaner mixture makes HP but creates more heat.  Most tuners are going for max HP because thats what customers want.  Ask your tuner to create a map a litte more conservative (more fuel).  Gonna lose some HP but motor should run cooler and last longer.  I just changed my air cleaner to a Heavy Breather and could feel the increase in heat imediately from the increase in air flow.  Put a tune with more fuel and temp came back down.  Just my experance. 
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LMR

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