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CVO Technical => Twin Cam => Topic started by: kgoeckscvo on September 24, 2013, 11:07:30 AM
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I have a 2012 CVOSG, Motor is stock, Head Pipe is a V&H true dual, RC 4" Mufflers, RC Accelerator Tuner. I am ready for more HP and Sound. Dealer suggesting 259 cams,10.5.1 pistons, MVA Heads. Anyone have this combination? If so what how does the bike perform and what are the HP & Torque no.s. If some has a better solution I am willing to listen.
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That kit is more mid range and top end power. Most " I say this as I have seen one build that did way better" so again most builds will build in the mid 100 hp range and mid teens for tq. Without any extra work. I would suggest you look at a few of the other threads going right now on cams and builds . Several dyno sheets have been posted and you can see where they fall into. The 259 can be made to work but from the tunes I ahve done as straight dealer kits they have not be overly impressive.
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Both of these were the same but with modified 110 heads.
Difference in results due to pipes
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Don is that with a set of the 110 heads that you have reworked?
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Yes they both were.
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Don is that with oe pistons? If so did you use a thinner head gasket or shave the cylinder head?
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Don is that with oe pistons? If so did you use a thinner head gasket or shave the cylinder head?
Both those bikes, ones mine, and one is a friends are as follows
10.5 SE pistons
5.3 HD injectors
55 mm HPI throttle bodies, with 58 mm intake
Woods directional lifters
110 heads ported by Don , set to give 10.8 compression.
Difference, the bike with the higher torque is a Fuelmoto head pipe and 4 inch Rinheart mufflers
My bike is the Fullsac D version head pipe and CVO mufflers with fullsac 2.25 SD cores. I found after the dyno tune that all the packing had blown to the end of the mufflers. And according to Steve at Fullsac that has shown to drop a couple foot pounds of torque. I have fixed the packing with the new screens but not had a chance to check it on the dyno.
We have run the bikes against each other and they are very close each and every time, more about who gets the jump.
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I have a 2012 CVOSG, Motor is stock, Head Pipe is a V&H true dual, RC 4" Mufflers, RC Accelerator Tuner. I am ready for more HP and Sound. Dealer suggesting 259 cams,10.5.1 pistons, MVA Heads. Anyone have this combination? If so what how does the bike perform and what are the HP & Torque no.s. If some has a better solution I am willing to listen.
Would suggest against what the dealer is offering.
The heads on the bike right now are a good starting point.
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I just did the kit the OP is looking at trying. 10.5 pistons,mva heads 259E's etc.
Ended up having real similar #'s to what's been posted. 118/125 with V&H x pipe and HO slips.
Only real complaint I have is the price of the MVA heads, pretty spendy. I went that route because
I wanted to have the stock parts to put back on and take the good stuff with me when I sell/trade in..