SE Ultra 110 mods..HELP

[craigb]

Mike,
Need your expertise and advise..
I own 07 SE Ultra 110ci. I have added Bassani True Dual with megaphone mufflers. I had SERT added and bike tuned. Much better so far. I want to increase compression and install Andrews TW55 cam as soon as available. Question: Should I have work done on EFI (Throttle body?) and ignition upgrade to fully realize potential of motor when cams/head work added? Is there a better combo that you would suggest? I would like to do it once and get the most Torqe/HP combo available. Any suggestions would be greatly appreciated.
Thanks in advance,
Craig

[Mike]

The 110 should really respond to head/cam/compression based on the 103's we've done so far. We are doing two 110 builds now and will have the results by end of Dec. One is for American Iron Magazine and will be a max effort street motor (I.E., pump gas). With compression at approx 10 to 1 the TW55's would be a good choice, better with approx. .600 lift (have to check which cams have timing sim to 55's with the increased lift). Maybe 10.5 with a cam change. The stock T-body is good for approx 115HP, the SE 50 is good for approx. 125 hp. Your motor could go 125+, with heads (STD 5th gear). We offer a T-body with a variable venturi that can be up to 58mm and good for 160hp. To make these numbers (125+), you'll need head porting, larger throttlebody (do not rework the stock unit, this does not net enough hp vs. cost), cams as suggested above and likely an exhaust change. The Bassani true duals are not the best choice for HP but do deliver decent torque (great with stock heads but this all changes with the above changes). The ignition upgrade is in your Race Tuner and higher output coils do not help with EFI (stock pretty good). Cool thing is, you are talking about doing top half work only, not a complete motor! I'll have more info when we are done with the customers 110. It is an '07 SE Dyna and will be getting Baisley heads, SE cams, Latus throttle body and D&D Boarzilla exhaust.
Thanks, Mike

[craigb]

Mike,
Thanks for the quick response.
Tell be about the heads you reference. Would that be a better solution for me than porting my SE heads that came with SE Ultra? As far as exhaust, Who makes the system I would need, I assume a 2into1, who has the falsee on the left side as well? Torque is my goal, along with good HP. I ride two-up most of the time. 2500-3500 range.

Thanks again Mike, I do appreciate your knowledge sharing.
Craig

[Mike]

The heads on the max. effort bike will be Baisley "Hybrid"s. These are heavily reworked stock castings and retail between $2500-$3500. The Dyna build will be using the original stock 110 castings with Baisley's "Street-Pro porting" which has adaptations for larger throttle bodies and the associated intake port configuration (we'll be using Latus throttle bodies on both). Unfortunately, torque in the 2500-3500 area and high end hp can be mutually exclusive. The D&D Boarzilla will make the best overall numbers but is horribly loud (rummer has it they are working on a quiter version). It carries the torque almost flat from 2-3K. They do offer a falsie for their Fatcat system but not for the Boarzilla. I'm afraid the Fatcat may be too small for a 110ci motor. We've been looking at the RB Racing Blackhole exhaust which is claimed to address this very issue (power vs. noise). Having used RB stuff in the past, I'll assume it's a very good system and hope to try one soon. Thunderheader also offers a falsie but is not enough pipe for a 110 (great 88-95 pipe) and again is fairly loud. There may be others I'm not aware of (hard to keep track of them all).
Regards, Mike

[craigb]

Mike,
Thanks for input. Last question. Which throttle body would you recomend with my set up, (andrews tw55, SERT, Bassani TD, mild head work)??? You mention 50mm???

Thanks again,

Craig

[Mike]

For hp potentials of up to 120, the SE 50mm will be Ok. For higher hp combo's we make a body with a variable venturi that can be any size required up to 58mm. Our production version for 07's is coming soon. Also, HP Inc. and Kuryakyn have offerings.
Thanks, Mike

[craigb]

New Problem:

I am being told that SE 110" heads aren't what I need to get the best results with Andrews TW55 cam. Something about 2" valves? Trying to increase compression and alittle head work, what are your suggestions/comments regarding the stck SE 110" heads, should I go with something else?
Frustrated in Newport Beach!!

[Mike]

Because of the motor size, I do not believe the 2" valves are an issue. We do feel the intake ports are a little large and the motor may benefit from smaller port volumes to help pick up velocity. But again we are dealing with a 110ci motor not an 88. We are currently working with a set of those heads and will have more info on what they like (from a flow and dyno standpoint) soon. Biggest problem we are having is the compression release location, depth and bleed hole location for use with domed pistons, decking for compression and exhaust port work. Limits what we are able to do without adding a lot of cost. The build we are doing is very similar to what you are trying for in performance, ease and cost. We like the features of the 110 head with the script and auto compression releases and so will try to stay with them. Compared to the cam H-D is using with those heads (SE 255), the TW55 should be a good improvement with a little porting and increase in compression.
Thanks, Mike