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[Street Stalker]

Hey fella's, just found this board and I am on my second CVO bike.  Was wondering if any of you have tried the SE 50mm T/B yet?  I have talked with a couple shops and they tell me that the bigger the intake, the more torque down low you lose.  He also said you are basically pushing your power up the rpm band.  Anybody have any input about this or possibly dyno results from one?

[hd-dude]

Welcome to the site Street,  [smiley=xyxthumbs.gif]I don't have the answer but I'm sure someone hear does. Be carefull here thought because this site is known to cost its members a lot of money [smiley=huepfenlol2.gif]

[HUBBARD]

Yeah, 'er 'uh, Street Stalker,
  Can't speak intelligently about that particular T/B, myself, as I run a Zipper's T/B.    But as hd-dude said, somebody here will!  Welcome to the Site!  Good lookin' Ride in your avatar!  [smiley=huepfenlol2.gif] Later--HUBBARD

[BLM777]

Hey fella's, just found this board and I am on my second CVO bike.

[Unbalanced]

Second the opinion of BLM, only you have a choice I have both a Zippers and Horsepower Inc throttle bodies.   Neither have given me any cause of alarm / trouble.   The issue isnt that the size is the problem as BLM stated.   The problem is that the heads on the 103 that come stock do now flow the air they needed smaller amounts of air to get any velocity.   When you push more air to these heads they fall flat on their a$$ and its dramatic.   If your going down this path to get more it costs more than just a throttle body.   Your going to need either heads reworked / welded up to match HTCC heads or SE CNC HTCC heads and 10.5 to 1 pistons and compression releases.   This should yeild you around 110 / 110 conservatively provided you pick the right cam to marry this all together.   If you need more info's post here or send me a pm happy to help out.

-harry

[fatboyse2]

I suspect your shop is explaining the POSSIBLE torque loss going to the 50mm with your bike if you are running stock heads and pistons.

[mr_magoo]

Street Staker  welcome to the site,  let me help ya how about a 54mm bigger is always better right.  No all kidding aside what else have/are you planning exhaust, cams, head work??

[HUBBARD]

Welcome Stalker, have a look around the site and use the SEARCH feature to find more from other on this.

[AUSSIE_FLSTFSE]

The SE 50mm  TB will not even fit the stock 103 heads the inlet ports are too small, the SE 50mm TB was designed to match with the inlet ports on the 103+ & HTCC heads

Cheers
 [smiley=drink.gif]

[BLM777]

Yeah, 'er 'uh, fatboyse2,
 

[mdduce]

They are telling it the way it is,it aint worth nothing if you caint flow what it puts in.I went with the 103+ heads and the 50mm throtelbody,it worked great on mine,its not stock though i did the 113" thing and ilke it a lot.

[Street Stalker]

Wow, that's some great reply's and welcome's, thanks.

[Unbalanced]

Street,

I am hoping to have some decision very soon by Zippers on the cam.  I will say it runs great and has all the pep you need with a stock throttle body.   If your plan is to do heads / cam and more later than I would look into the Horsepower Inc 49, Zippers 50, or the Speeds 49mm throttle bodies.   The Speeds is based off of the HPI throttle body with some tweaking done by by Speed's"Wayne".   Watch the thread as soon as I have something I can share I will.

-harry

[Street Stalker]

I thought I had heard that the 06 S.E's had the larger intakes?  Anyone know if that is true?  If so, then maybe the S.E 50mm I have will work...  

FLSTFSE2 I read your link about the mods you made.  Have you had a chance to try it, how is the low end torque with your set-up, does it pull hard throughout the rpm band?

[AUSSIE_FLSTFSE]

I thought I had heard that the 06 S.E's had the larger intakes?