Anyone do a build w/ 58mmTBI & TW408-6?

[heatwave]

I'm planning on closing the deal on a 2010 SE Ultra tomorrow (Red/Slate). I'm looking to do engine work almost from delivery. Not too radical but still planning for a significant jump in power. Planning to have the head work done by Hillside with the head build raising compression, springs, guides, 5 angle valve job etc. Adding SE 58mm throttle by wire TBI, adjustable pushrods, Pro RT and SE roller rockers. Staying with the stock pistons. Not opening the bottom. Big question is cams.

I'm leaning towards Woods TW408-6 as the dynos I've seen with 110's show it coming on hard and early (below 2400) and hangs in there all the way to 5500. This cam is high lift at .650.

The other cam I'm considering is Woods TW8-6. It comes on later (around 2900) but runs strong all the way 6K. Its a shorter lift cam at .590.

I'm having the Tour Pak made detachable. More like a convertible Street Glide than an Ultra to me. I like lots of power in the curves and an occasional high speed run when the weather, traffic, bike, road and driver conditions are perfect.

Thoughts??? What kind of performance do others think this build will deliver. Any thoughts on one cam vs the other that I'm thinking about using? The 408 will need more compression than the 8-6 but I don't think alot more.

I know very little about the clutch in the 2010 SE Ultra. Will it need to be beefed up for this build or is it already an SE clutch capable of the power this engine will deliver? I also do not know yet what intake is on the '10 SE Ultra. I suspect the same as 2009. Did the 09 SE Ultra and 09 SE RG both have hi-flow A/Cs (even though they looked different?

I know the 2010CVO touring header pipe has changed from 2009, but does anyone know if the stock 96" 2:1:2 headers are still free of a cat? If so, I was hoping to switch over to a "catless" 2:1:2 96" header plus either a Cycle Shack Performance baffle or a 2.25 Fullsac.

Thanks for any feedback on this engine build before the credit cards start flying. Am I missing anything in the overall build?

[XDixiecratX]

you might want to introduce yourself at new to the community

[heatwave]

Originally Posted by XDixiecratX

you might want to introduce yourself at new to the community

Will do...

[Dave63]

Originally Posted by heatwave

I'm planning on closing the deal on a 2010 SE Ultra tomorrow (Red/Slate). I'm looking to do engine work almost from delivery. Not too radical but still planning for a significant jump in power. Planning to have the head work done by Hillside with the head build raising compression, springs, guides, 5 angle valve job etc. Adding SE 58mm throttle by wire TBI, adjustable pushrods, Pro RT and SE roller rockers. Staying with the stock pistons. Not opening the bottom. Big question is cams.

I'm leaning towards Woods TW408-6 as the dynos I've seen with 110's show it coming on hard and early (below 2400) and hangs in there all the way to 5500. This cam is high lift at .650.

The other cam I'm considering is Woods TW8-6. It comes on later (around 2900) but runs strong all the way 6K. Its a shorter lift cam at .590.

Thoughts??? What kind of performance do others think this build will deliver. Any thoughts on one cam vs the other that I'm thinking about using? The 408 will need more compression than the 8-6 but I don't think alot more.

I know very little about the clutch in the 2010 SE Ultra. Will it need to be beefed up for this build or is it already an SE clutch capable of the power this engine will deliver?

Thanks for any feedback on this engine build before the credit cards start flying. Am I missing anything in the overall build?

I can't help you with the exhaust/cat question.

The thing you have to look at with the TW408-6 cam is the lift. At .650, you night be needing to grind reliefs in the rockerbox webbing for roller rocker clearence, if not for the vavle springs. What I'd do is go to the Woods site and look for what compression/CID they recommend for their cams and see is your build is in that ballpark.

Granted, the power comes in sooner, (which I think we all want) but it all depends on what kind of power you're planning on building it for.

I don't think the cams are as much the question (You seem to have done your homework on those) as the fuel management you're gonna be using, that you never mentioned. You said you've seen dyno runs with this set up, (which is the BEST way to decide as to what you want in a build, IMHO, before experimenting on a build yourself) but what system were they using to deliver fuel and MAP the engines. That's as important as anything else.

I know the SE clutch systems are pretty decent, but I'd ask around to see what some of the other 100+hp guys are using. Not having it slip is one thing, but not having a forearm like popeye's is another if you get snagged in traffic, or ride it on a daily basis. Barnett makes a pretty decent clutch/spring as well.

[heatwave]

Originally Posted by Dave63

I can't help you with the exhaust/cat question.

The thing you have to look at with the TW408-6 cam is the lift. At .650, you night be needing to grind reliefs in the rockerbox webbing for roller rocker clearence, if not for the vavle springs. What I'd do is go to the Woods site and look for what compression/CID they recommend for their cams and see is your build is in that ballpark.

Granted, the power comes in sooner, (which I think we all want) but it all depends on what kind of power you're planning on building it for.

I don't think the cams are as much the question (You seem to have done your homework on those) as the fuel management you're gonna be using, that you never mentioned. You said you've seen dyno runs with this set up, (which is the BEST way to decide as to what you want in a build, IMHO, before experimenting on a build yourself) but what system were they using to deliver fuel and MAP the engines. That's as important as anything else.

I know the SE clutch systems are pretty decent, but I'd ask around to see what some of the other 100+hp guys are using. Not having it slip is one thing, but not having a forearm like popeye's is another if you get snagged in traffic, or ride it on a daily basis. Barnett makes a pretty decent clutch/spring as well.

Definitely the rocker covers will need machining to fit the lift of the TW408-6 cams. In fact the head build includes the machining to ensure there's appropriate clearance on the covers for this cam. The heads and covers will be sent together so the shop working on the head can properly machine the covers for clearance.

I agree with your assessment of the clutch. Now if I could only find out if the MoCo has put a new wrinkle in my exhaust plans by installing a cat in the stock 96" 2:1:2 exhaust header. Anyone got any info?