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Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
No reason this cam shouldn't still produce low to mid 110's hp and low to mid 130's tq. The culmination of parts always need to be right and a professional tune a must to bring it all together
I still agree with this statement.
If you must have true duals, throw a set of Rineharts on. You'll get there or close
I wondered why such a short duration old cam in such a build but then it's a dealership. The exhaust close is a good point but tune is critical here too. A canned map with a few changes isn't going to get it done here. https://www.cvoharley.com/smf/index.php?topic=54741.15
Before I suggest anything else, I would like to know what the actual CCP is as measured with a gauge.. Something just ain't adding up here .
I think he assumed 197psi based on a certain chamber volume that may or may not be correct.
Personally I think it's a combination of a half assed tune and a combination of parts that don't play well together. That and the 7h isnt all that great if a cam. Especially given what's available today. Most people look at intake events but never consider how much exhaust events affect a build nor do they understand it. In some respects, exhaust events can dictate what kinds of pipes will work best. So does valve sizes and ratio.
Also, what works well with an oem heads don't necessarily work the same with cvo or SE heads.
That and mufflers with unknown performance. Very few true duals work for **** and imo REQUIRE stepped head pipes. A few slip ons with the stock head pipes work really well and a handful of 2in1s and X pipes with the right slip ons. The rest are garbage people buy because they like the looks, sound ,or price or or all 3 or their buddy said there was a noticeable improvement in performance over stock. Like that means ****.
This is a poorly thought out/executed build with a poor tune in my opinion. The dealership is the last place I would go to for performance advice or tune.
I should add there are exceptions to the dealerships but most are warranty processors.
Last edited by 60Gunner; Nov 20, 2023 at 04:53 PM.
Thank you for all the replies and info. My bike is still at the dealer. I ordered the TW-7h because that was the cam that bob woods Recommended to me with my build and setup. I don't know what the volume is. I have been told the CVO 110 heads can be anywhere from 93 to 97. So most say the average is around 95. I suggested having the heads measured and doing hi compression pistons and a different cam but was told that would make less reliable and shorter lived. I was just hoping to get the 117 kit and with the .03 gasket and a cam that can work on less compression give me more than what Harley states which is 114hp and 120tq with the stock 117 kit using Screamin Eagle exhaust. This was the dyno when it was a 110 before the upgrade.
For low end torque and riding nicely I think youll be happy with it when they put a good pipe on it.
Being at a dealership doesnt exclude the guy from knowing what hes doing, rigidthumper worked at one for a long time until a little while back. He tuned one of mine about 15 years ago. The Indy tuner thats closest to me knows whats what and he came from a dealer. I would trust either one of them (and a few more I know of) a lot more than some indies Ive dealt with. And definitely more than some googlemeisters who give their expert advice on forums
Last edited by harpwrench; Nov 20, 2023 at 05:37 PM.
Thank you for all the replies and info. My bike is still at the dealer. I ordered the TW-7h because that was the cam that bob woods Recommended to me with my build and setup. I don't know what the volume is. I have been told the CVO 110 heads can be anywhere from 93 to 97. So most say the average is around 95. I suggested having the heads measured and doing hi compression pistons and a different cam but was told that would make less reliable and shorter lived. I was just hoping to get the 117 kit and with the .03 gasket and a cam that can work on less compression give me more than what Harley states which is 114hp and 120tq with the stock 117 kit using Screamin Eagle exhaust. This was the dyno when it was a 110 before the upgrade.
Yeah? He recommended I run the 999-6A in my 107 build. If I had listened I'd be just another 107 build falling short of 120hp instead of closer to 130 squared...with true duals. And not rinefarts.
@ harpwrench...some are born to follow... I'm not one of them. Probably why I'm pushing 113 numbers in a 107?
I did say there are exceptions btw.
Last edited by 60Gunner; Nov 20, 2023 at 07:55 PM.
How long was spent on the tune?
Compare your tune file to the base map they started with. I bet you find your answer.
When you light the charge matters.
Get it tuned.
Bobby must be clearing out NOS. The 7h is a low lift version of the 6.
Last edited by 60Gunner; Nov 22, 2023 at 04:57 AM.
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