2010 CVO lifter change (maybe head change too).

[838]

I'm looking at a 2-up bike for me and the wife. Is a 2010 CVO street glide that's stage 1. Rinehart true duals that I'll sell to help towards a 2-1.

I want to get the lifters out (it's got about 20k on the clock). But I also have a set of ported 96" castings (86cc) I could swap on, they have .650" beehives.

With a .030" head gasket I believe I'm at 10.6-10.7:1. I don't want to spend money for horsepower, it's a 2-up bike so I'd keep the stock throttle body and stage 1 air cleaner.

Has anybody done this before? What's a good cam choice based on what I've got here. Torque being the only goal and not going to a larger throttle body or injectors.

[Hilly13]

Are your ported heads set up for your compression releases?

[838]

Are your ported heads set up for your compression releases?

The 96" heads have manual releases.

[WhipLash96]

I'm looking at a 2-up bike for me and the wife. Is a 2010 CVO street glide that's stage 1. Rinehart true duals that I'll sell to help towards a 2-1.

I want to get the lifters out (it's got about 20k on the clock). But I also have a set of ported 96" castings (86cc) I could swap on, they have .650" beehives.

With a .030" head gasket I believe I'm at 10.6-10.7:1. I don't want to spend money for horsepower, it's a 2-up bike so I'd keep the stock throttle body and stage 1 air cleaner.

Has anybody done this before? What's a good cam choice based on what I've got here. Torque being the only goal and not going to a larger throttle body or injectors.

Give it the 06 casting with an S&S 570. No need for a larger TB. I ran the 570 in my 98" build with a cv 44 and that little engine had plenty of torque. It was in my Road Glide and ridden 2 up as well.

[JSD]

10.5 comp with 570 might be pushing it 

[WhipLash96]

10.5 comp with 570 might be pushing it

How so? You aren't required to run a 030" head gasket. What's his attitude?

[HogMike]

Torque being the most important?
Do you have a number in mind?

For reference, my 2010 103" we built to go 2 up pulling a heavy trailer, made 100 on the dyno.
Only changes were a mild head clean up, Fullsac exhaust, .30 head gaskets, Andrews 54's ventilator a/c.
We also changed the trans pulley.
A GOOD tune was time consuming IIRC!

This bike served us very well over the years and was much fun ti ride.

[HogMike]

You cannot view this attachment.

Red is where it's at!
LOL

[838]

The wife really wanted red... this one's black.

No real number goal other than nice smooth linear band in the ranges we ride. I have a 30t trans pully for it too. I want to be able to light twist the throttle and feel that we're in the tq at 2700 range. Don't care if it falls on its face at/around 5. Basically like the 255 does stock would be satisfied. I was thinking something like a tr625 at 10.6-10.7 but don't know how it would like the stock TB...

This move to the 96" castings would be to eliminate the CVO (poor stock lifter, 255, 110 head spring) combo from the factory more than anything... a little tq bump from compression and better flowing heads is just a bonus.

And I want the 110 heads for my 117 that's on the bench for my solo bike 😈 (win, win).

[Ohio HD]

There are generally builds listed in the dyno section that can be construed as pretty close to what you want. These three use stock TB and ported TC heads, non 110 heads. These are 107" but they should be very close to a 110". Possibly the 110" will get a few more ponies as some tuners have said they think the larger bore somewhat unshrouds the valves in the 96" or 103" heads.

Cam wise, I'd be looking at a TTS-150.   


https://harleytechtalk.com/htt/index.php/topic,82892.msg928496.html#msg928496

https://harleytechtalk.com/htt/index.php/topic,80700.msg900710.html#msg900710

https://harleytechtalk.com/htt/index.php/topic,96877.msg1128113.html#msg1128113

[838]

There are generally builds listed in the dyno section that can be construed as pretty close to what you want. These three use stock TB and ported TC heads, non 110 heads. These are 107" but they should be very close to a 110". Possibly the 110" will get a few more ponies as some tuners have said they think the larger bore somewhat unshrouds the valves in the 96" or 103" heads.

Cam wise, I'd be looking at a TTS-150.   


https://harleytechtalk.com/htt/index.php/topic,82892.msg928496.html#msg928496

https://harleytechtalk.com/htt/index.php/topic,80700.msg900710.html#msg900710

https://harleytechtalk.com/htt/index.php/topic,96877.msg1128113.html#msg1128113

These heads have oversized valves. I don't know if that cam would clear. However, I was told a while back that the 150 was very similar to 54h in how it tuned.

[Ohio HD]

TTS-150 fits in stock 110" heads, larger than 96" valves. A phone call to TTS and tell them what you have may answer many questions.

[60Gunner]

TTS-150 fits in stock 110" heads, larger than 96" valves. A phone call to TTS and tell them what you have may answer many questions.

+1 on the TTS150.

[JSD]

10.5 comp with 570 might be pushing it

How so? You aren't required to run a 030" head gasket. What's his attitude?

Just saying at 10.5 with the 570 cam may cause detonation 

[WhipLash96]

10.5 comp with 570 might be pushing it

How so? You aren't required to run a 030" head gasket. What's his attitude?

Just saying at 10.5 with the 570 cam may cause detonation

  Hmmm. If he uses the stock 110 heads which are at minimum 90cc's and a .030 head gasket, his static compression is at about 10.3:1 and corrected compression will be at around 9.5:1 using the 570. CCP around 190. This isn't even figuring in his altitude. Would you be worried about detonation with this? I wouldn't be. Even if he did use the 06 casting. So many other variables to consider too. How far down are the slugs in the hole? Use a .040 or use a .045 head gasket, use a dished piston. Get the engine tuned. The list goes on..

[60Gunner]

Compression is nothing to fear and equals better cylinder fill.
My corrected compression is in the neighborhood of 10.1 CCP is 212.
Personally I wouldn't run a CCP under200.

[838]

I wouldn't be scared of the 570 at 10.5:1 I ran it at 10.3:1 in a 117" that could run on 87 if needed. I don't think this cam accomplishes my original goal at 110" though

TTS said max for my requirements with the 150 is 10.2-10.3

With a .040 head gasket, assumption the pistons will be down at least .005" each, and figuring -2cc's for the stock valve reliefs I'm looking right around 10.3:1... zero decked with a .030" and I'm in between 10.5-10.6.

[838]

I actually was thinking about an old set of TR600sm... very similar specs and these 96" heads can do the 600 lift.

[60Gunner]

I assume you mean to the cams I posted that mysteriously disappeared?

[838]

I assume you mean to the cams I posted that mysteriously disappeared?

Yes, virtually identical based on specs. Specs don't tell the whole story, but the 580 has a little more duration on the exhaust side, Intakes are same. T-man added exhaust duration on his newer profiles... different discussion, but I've been curious as to why, just never asked.