2012 107" build numbers seem low

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Apr 15, 2014 | 02:40 PM

#41

grbrown

Club Member

Joined: Jun 2007

Posts: 45,429

Likes: 2,898

From: Bedford UK

Have we got a handle on Diggler's bike yet?! I'm not sure he's expecting 130HP from his build......

Apr 15, 2014 | 02:40 PM

#42

mud

Club Member

Joined: May 2006

Posts: 14,564

Likes: 9,224

From: the 50s & the 60s

Quote:

Originally Posted by JimGnitecki

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That may be TECHNICALLY "correct", but

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most if not all of the successful performance motors are built by proven formulas.

velocity is a part of some formulas.

large volume throttle bodies don't always factor in.
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Quote:

Originally Posted by JimGnitecki

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since Harley itself includes the 58mm throttle body in its Stage 4 race kit, and since that throttle body is expensive and adds a lot of cost to the kit, I don't think they would have included it unless the improvement over the 50mm throttle body is notable.

I saw the price for the 58mm throttle body the other day in the Sreamin' Eagle catalog, and it was something like $500 as a separate purchase!!

Jim G

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I don't see many truly high performing motors being built with HD equipment.
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Apr 15, 2014 | 02:59 PM

#43

JimGnitecki

Stellar HDF Member

Joined: Feb 2014

Posts: 2,710

Likes: 529

From: Lethbridge, Alberta Canada

Quote:

Originally Posted by qtrracer

Seen 48 mikunis support 130hp.

Yes, but how many EXTRA horses would a 58mm have made?

Jim G

Apr 15, 2014 | 03:10 PM

#44

qtrracer

Ultimate HDF Member

Joined: Jan 2008

Posts: 6,532

Likes: 132

From: SoCal

Quote:

Originally Posted by grbrown

Have we got a handle on Diggler's bike yet?! I'm not sure he's expecting 130HP from his build......

Yeah but Jim is, LOL

Apr 15, 2014 | 06:40 PM

#45

prodrag1320

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Joined: Sep 2009

Posts: 3,569

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From: deland,florida

Quote:

Originally Posted by UltraNutZ

i'd be real surprised to see that build under 115/115

should be in the 115+/120+ area

Apr 15, 2014 | 06:46 PM

#46

prodrag1320

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Joined: Sep 2009

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From: deland,florida

Quote:

Originally Posted by HD Bobber

Interested in seeing my numbers.....I think we'll be pretty close.

even with a stock t. body,run the bigger injectors (5.3).finished a 107"/585 with 1.900 street port headwork that went 112/124,your stage III heads should go 115+ no prob

Apr 15, 2014 | 07:23 PM

#47

HD Bobber

Grand HDF Member

Joined: Sep 2010

Posts: 3,580

Likes: 215

From: Illinois

Quote:

Originally Posted by mud

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I don't see many truly high performing motors being built with HD equipment.
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YAH TRUE THAT Mud. I would never attempt making a high hp build with harley aftermarket kits....haven't seen great numbers from those that did go the HD route.

Quote:

Originally Posted by prodrag1320

should be in the 115+/120+ area

Quote:

Originally Posted by prodrag1320

even with a stock t. body,run the bigger injectors (5.3).finished a 107"/585 with 1.900 street port headwork that went 112/124,your stage III heads should go 115+ no prob

Many that would put a hell of a smile on my...bigger than the one I have now. I"ll get her dynoed some time mid season and post the graph and numbers.

Kirby, you think a 50mm w/ 4.9 injectors (stock 46mm w/ 3.91 right now) would give me much extra (thinking injectors alone should bump things up).

Apr 15, 2014 | 07:27 PM

#48

johnnyjellybean

Cruiser

Joined: Jan 2013

Posts: 232

Likes: 11

From: montreal

No one here ever seems to talk about what kind of Dynos they are tuning on. There are huge differences between different manufacturers. I've been told there is conservatively a 10% difference from a Super Flow to a Dynojet.