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CVO Technical => Twin Cam => Topic started by: CHH_Badkarma on June 10, 2019, 04:17:35 AM

Title: Time for simple upgrades
Post by: CHH_Badkarma on June 10, 2019, 04:17:35 AM
I am not one to chase HP numbers but I have been thinking about making two small changes on my Breakout.

My bike came from the dealer with V&H big radius 2-2 pipes that I know are more for looks and sound than efficiency. Not to mention the higher treble exhaust note gets old at highway speeds. To that end I am thinking of upgrading to a D&D low cat. The wrapped baffle should sound a little better to my ears than the strictly louvered baffle of the bobcat. HP is the same according to D&D.

Second I am thinking of swapping out the stock 255 cams for the zippers redshift 587 cams. From the little I have read it should carry the hp and torque a little further along the rpm range while not beating the valve train to death like the 255s.
I do realize the valve springs are also part of the problem but not looking to go down that path yet to keep costs down (I know, funny right). Currently have S&S premium lifters that I had put in at my 5k service. Likely do those again with the new cams.

Does it sound like these two changes will play nice together?



Title: Re: Time for simple upgrades
Post by: HD Street Performance on June 10, 2019, 10:37:52 AM
Will work, springs are not terrible. Not the cam I would use but it is not a terrible choice either
Title: Re: Time for simple upgrades
Post by: CHH_Badkarma on June 10, 2019, 12:52:18 PM
Well,thats what I get while trying to post while working graveyard..

I ment the 587 cams. Original post edited
Title: Re: Time for simple upgrades
Post by: hd-dude on June 10, 2019, 12:52:47 PM
You can't go wrong with the D&D, for the cam the TTS-150 works very well for what you are looking for.
Title: Re: Time for simple upgrades
Post by: HD Street Performance on June 10, 2019, 04:21:12 PM
What I had in mind exactly.  Great combo.
Title: Re: Time for simple upgrades
Post by: CHH_Badkarma on June 10, 2019, 08:34:05 PM
I will take a look at the tts-150s and compare then to the redhift 587s. Thanks for the info folks 👍👍
Title: Re: Time for simple upgrades
Post by: HD Street Performance on June 11, 2019, 08:02:59 AM
Not much to look at, no published specs. Take it from installers and shops that use them repeatedly as a cvo bolt-on. Add a little compression (heads off, milling) and the combination gets better yet.
Title: Re: Time for simple upgrades
Post by: CHH_Badkarma on June 11, 2019, 08:22:06 AM
Ahh another mystery cam. Will talk to the shop when I get closer to doing this and get his opinion 👍
Title: Re: Time for simple upgrades
Post by: JKM on June 12, 2019, 09:21:40 AM
in order to keep cost down and reduce the noise of the V&H big radius, have you thought about the V&H quiet baffles for those pipes?  Might be a cheap way to quiet it down a little.  here is what the baffle looks like

https://www.denniskirk.com/vance-and-hines/big-radius-quiet-baffle-23081.p4409698.prd/4409698.sku
Title: Re: Time for simple upgrades
Post by: MCE on June 12, 2019, 11:32:53 AM
Can't go wrong with D&D's stuff.
Title: Re: Time for simple upgrades
Post by: CVO 2015 on June 12, 2019, 11:56:53 AM
HDSP,

Do you have any dyno sheets of the TTS 150 in a CVO 110  with the cometic and/or with your headwork that you can post ?

Sent from my SM-N960U using Tapatalk

Title: Re: Time for simple upgrades
Post by: MCE on June 26, 2019, 09:09:22 AM
Ahh another mystery cam. Will talk to the shop when I get closer to doing this and get his opinion 👍

I'm always skeptical of cams w/o published specs.
Title: Re: Time for simple upgrades
Post by: CHH_Badkarma on June 26, 2019, 10:31:33 AM
I'm always skeptical of cams w/o published specs.

I generally am to, but I am a decade out of the engine game and even then it was chevy motors so I guess it is what it is.

I "may" go a different route with this. Pondering an S&S 124 kit, but that will be another thread if I decide to go that route.
Title: Re: Time for simple upgrades
Post by: Para Bellum on June 26, 2019, 06:13:46 PM
Ahh another mystery cam. Will talk to the shop when I get closer to doing this and get his opinion 👍
IME:  If you go with a TTS cam, make sure you and/or the tuner have gotten a starter AFR map from TTS.  They won't release the cam specs, and it's difficult to get that starter map on short notice.  I recommend two weeks head start.
Title: Re: Time for simple upgrades
Post by: bigchuck on June 26, 2019, 06:54:42 PM
IME:  If you go with a TTS cam, make sure you and/or the tuner have gotten a starter AFR map from TTS.  They won't release the cam specs, and it's difficult to get that starter map on short notice.  I recommend two weeks head start.

I know TTS does a lot of R&D and make excellent products, but it's strange they won't publish specs. It not like other companies can't just buy a cam from them if they want to copy it. I guess they don't want the average guy to be able to compare it to other cam specs. That being said, I would have no hesitation buying any of their products. JMO
Title: Re: Time for simple upgrades
Post by: CHH_Badkarma on June 26, 2019, 08:18:21 PM
Sound advice on both of the above posts. I trust the shop I have worked with in the past and give them all the time they need. Not one of those guys that "has to have the bike back next week" I will post back up once I nail down the route I decide to go. If a property sale goes well, I will likely go the 124 route. Keep ya posted  :2vrolijk_21:
Title: Re: Time for simple upgrades
Post by: MCE on June 28, 2019, 12:52:59 AM
It's not like anyone with an Audie cam pro can't decipher what the cam really is. But for me, personally,
I won't use a cam if they won't even give me the opening and closing numbers. (You can't run a simulation
w/o that. So why bother?).

Besides, The dyno results I've seen are reason enough to look elsewhere.