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CVO Technical => Twin Cam => Topic started by: RoadDawg on May 06, 2014, 12:10:20 PM
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Anyone out there change cams in your 110 SE? What is the HP and TQ increase? Does the engine run cooler? Will it affect the warranty? I have a 2014 CVO Breakout.
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Best advice is to do some searches about this as there is already tons on info and choices to read about as well as dyno sheets to compare. Good luck in your decisions and enjoy the new bike. :drink:
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Which oil do your run? ;D
All bs aside, a bajillion threads and choices you need to ask yourself what you are trying to achieve then you can narrow it down.
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They all effect the engine warranty,
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Anyone out there change cams in your 110 SE? What is the HP and TQ increase? Does the engine run cooler? Will it affect the warranty? I have a 2014 CVO Breakout.
An S&S .570 will shed heat, but you'd need to set it at 10.0 cr for it to be effective, but it'll still have less ccp that the OE school-bus 255 cam.
I will also say, that there are no magic cams out there, but that .570 is a damn good one.
Scott
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Yes, getting rid of the 255 cam will cool things down. From there you need to determine where you like your power.
Some people like the tractor cam feel of the 255's while others like their power much higher in the rpm range. Really comes down to personal preference. Everything between is available.
THEN, think about budget.
Cam swap, new cam bearings, new tuner, new push rods, new lifters and a good dyno tune will put you in the $1500-$2500 range
Adding compression requires pulling the heads off. So more money just in plain old labor.
Thinner head gasket, smaller add on. Shaving heads a little more. Doing a complete headwork job much more. Add a bigger throttle body, pistons, crank welding etc.. etc.. Could be in the $3000-$7000 range depending on how far you go. It can get a little mind boggling for sure.
I debated this for a long time before I decided on a mid range cam, new cam bearing, new pushrods, new lifters, tuner and a great tune. Works just great for what I was looking to do. Cooled it down and add a little legs to rpm.
You're in good hands here. There are TONS of threads to review and do your research!
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GMR 577
Kury 24D
Dragos 580 or 609
all make within a couple horse and torque of each other
All of them leave you room to grow in the future....headwork,throttle body or an increase in compression ....no problems
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If you like the Tq strong on low end and peaked around 3600 RPM This is how I have my 2014 CVO BO set:
S&S 551 cams, lifters pushrods and roller rockers. Head work to set CR for cam. V&H Big Radius 2 into 2.
At 6000 ft elevation I get 110 Lbft at 2000 rpm, peak of 120 Lbft at 3600 (85hp) and 110 Lbft at 4300
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GMR 577
Kury 24D
Dragos 580 or 609
all make within a couple horse and torque of each other
All of them leave you room to grow in the future....headwork,throttle body or an increase in compression ....no problems
Well said
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With that bike and the lack there of great ex system. The Ex timing on the cam will play a much larger role. Shops that tune in house get to see the little things.. How a cam with a 55* or larger Ex( the larger the number the earlier the EX valve is being opened) open point will need more compression to work correctly. Where as a cam with a better cam timing will not need the extra work to yield the same results.
Then YOU need to determine where you would like the power and what you would like to change about it..
If you like the low end power you have now but want the power to pull out further , or want killer top end power only?? Now is the time to make that choice and correctly put together an engine package ..
I will try to get some time to post up some lay overs. Where I will lay out several cams on the same sheet to show the changes on power curve.
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My vote is for the Kury 24d. It appears to be a great bolt in cam. With a little compression and some head work coupled with a 58mm TB and 5.3 injectors you will move the HP and TQ into the 120's. But if you go that far the Tman 625's will really turn that bike on.
Be Safe
THE DAWG
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To answer the question, minus a happy advertising plug, the S&S .570 will reduce heat. :2vrolijk_21:
Scott
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we`ve used the Andrews 54`s with very good results
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we`ve used the Andrews 54`s with very good results
That is a nice bolt in as well ..
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we`ve used the Andrews 54`s with very good results
Kirby,
With that 42 closing, you bumping up the squeeze?
I'd suspect so. :2vrolijk_21:
Scott
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I have Andrews 57h cams
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I have Andrews 57h cams
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nice choice,another favorite here
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GMR 577
Kury 24D
Dragos 580 or 609
all make within a couple horse and torque of each other
All of them leave you room to grow in the future....headwork,throttle body or an increase in compression ....no problems
+1 here. 3 great choices