Author Topic: 2011, 103", FLHTC, DVR heads, Cycle-Rama 575's, Catless stock head pipe, Mellows  (Read 5509 times)

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Online Durwood

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I like that cam Daren. Nice job!
I like it as well Laser, the early torque feels great and the lobe design makes for a quiet valve train.

I would like to see what a good X pipe would do on this bike
.

what's your x-pipe of choice, or do you feel they're all pretty much the same?
thinking about changing out my CycleShack header for an x
Any of the popular 2-1-2's. Fuel Moto, Fullsac, Power Duals.

Offline Admiral Akbar

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Were the DVR heads from the Stock castings?   Know the valve sizes?

Good build BTW..
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Offline UltraNutZ

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Stock castings Max.














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Online 1FSTRK

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I like that cam Daren. Nice job!
I like it as well Laser, the early torque feels great and the lobe design makes for a quiet valve train.

I would like to see what a good X pipe would do on this bike.

I bet you would be surprise how little a difference it would make.
From what testing I have seen in the 100-115 hp, 110-120tq bikes the difference has been minimal and basically shape favoring hp more than number real numbers gains.

As previously noted, this is a winner best thing to do with it is ride it. :up: :up:
"Never hang on to a mistake just because you spent time or money making it."

Online Durwood

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I like that cam Daren. Nice job!
I like it as well Laser, the early torque feels great and the lobe design makes for a quiet valve train.

I would like to see what a good X pipe would do on this bike.

I bet you would be surprise how little a difference it would make.
From what testing I have seen in the 100-115 hp, 110-120tq bikes the difference has been minimal and basically shape favoring hp more than number real numbers gains.

As previously noted, this is a winner best thing to do with it is ride it.
That's what he's going to do :up:

Online Durwood

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Were the DVR heads from the Stock castings?   Know the valve sizes?

Good build BTW..
Thanks Max. Looks like Todd got you dialed in on the head specs. :up:

Offline Admiral Akbar

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Stock castings Max.


Thanks for the info.. I like those valve sizes on a 103/107.. Bump the CR / use a tm590 and I'd bet 120/120 would be the motor would still have a nice power curve.. Nothing wrong with the build as it sits tho.. Very nice power band.. 

I also don't think a different head pipe would add much power.. Higher flowing mufflers might but they would probably steal TQ from the lower end.. No reason to change whats there especially if it's not to loud..
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Online Durwood

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Quiet it is. Here's the Uncorrected graph, it was 52* in the dyno room. SE spring is giving a little.
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Offline krwson

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Don't know much about all the head flow numbers, BUT, this is a hole new animal, WOW!!!
 Got it home today, road it just a couple miles befor I left Daren's this afternoon acted like it wanted to break loose in 2nd gear :smilep:   Will have to learn to ride again......
    Daren's work is impeccable and tuneing even more impressive  :SM:
Thank to Sheffer Performacce HD

Offline Tommy D

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Nice work Daren!   :up:[/quote]Thanks Todd, they are really nice pieces, I checked the cc's, they were dead NutZ to what Dan set them to for you.
[/quote]

Daren,

Did you send the heads to Dan or customer?
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Offline UltraNutZ

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Tommy, I bought the heads directly from Dan and they were done at 85cc.  I kept them for a bit but then wound up selling them off prior to install to krwson and if memory serves me correct I shipped them directly to Daren and then krwson brought the bike to Daren for the work and tune.




Here's a link to all the pics of the heads


https://www.dropbox.com/sh/b3lgw1temv4zfr8/AADdcJt3BaM6hgeC_S6-88hPa?dl=0



Politicians are like diapers.
They need to be changed for the same reasons

Offline Tommy D

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Tommy, I bought the heads directly from Dan and they were done at 85cc.  I kept them for a bit but then wound up selling them off prior to install to krwson and if memory serves me correct I shipped them directly to Daren and then krwson brought the bike to Daren for the work and tune.




Here's a link to all the pics of the heads


https://www.dropbox.com/sh/b3lgw1temv4zfr8/AADdcJt3BaM6hgeC_S6-88hPa?dl=0

 :up:
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Online Durwood

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Were the DVR heads from the Stock castings?   Know the valve sizes?

Good build BTW..
For clarity sake, the intake valves are 1.980

I measured them prior to assembly and confirmed this with DVR this morning after I noticed the spec sheets stated a 1.9 IV.

Exhaust valves were 1.575.



Offline pwmorris

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Simple, effective combo of parts, Dan Vance heads, and an excellent tune.
A quiet pipe with strong power to go across town, or across country, while still hearing your tunes and not losing your hearing.
I wouldn't mess with it-just enjoy it... :up:

Offline Bagger

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First dyno, 5th or 6th gear run?

Online Durwood

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First dyno, 5th or 6th gear run?
6th gear.

Offline Bagger

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First dyno, 5th or 6th gear run?
6th gear.

Thanks...  In 5th that'd be 4-5 less TQ/HP across the curves for us guys running five speed trannys.

Online 1FSTRK

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First dyno, 5th or 6th gear run?
6th gear.

Thanks...  In 5th that'd be 4-5 less TQ/HP across the curves for us guys running five speed trannys.

Not true
Your 5 speed trany is 1:1 in 5th just like the 6 speed is in 6th and often said to have less losses due to friction when compared to the 6 speed.
"Never hang on to a mistake just because you spent time or money making it."

Offline Bagger

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First dyno, 5th or 6th gear run?
6th gear.

Thanks...  In 5th that'd be 4-5 less TQ/HP across the curves for us guys running five speed trannys.

Not true
Your 5 speed trany is 1:1 in 5th just like the 6 speed is in 6th and often said to have less losses due to friction when compared to the 6 speed.

It's reflected on each dyno 5th/6th gear overlay and separate sheet postings.


Online 1FSTRK

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First dyno, 5th or 6th gear run?
6th gear.

Thanks...  In 5th that'd be 4-5 less TQ/HP across the curves for us guys running five speed trannys.

Not true
Your 5 speed trany is 1:1 in 5th just like the 6 speed is in 6th and often said to have less losses due to friction when compared to the 6 speed.

It's reflected on each dyno 5th/6th gear overlay and separate sheet postings.

What is reflected?
A 6-speed in 5th is not comparable to a 5-speed in 5th.
"Never hang on to a mistake just because you spent time or money making it."

Offline harleytuner

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First dyno, 5th or 6th gear run?
6th gear.

Thanks...  In 5th that'd be 4-5 less TQ/HP across the curves for us guys running five speed trannys.

Not true
Your 5 speed trany is 1:1 in 5th just like the 6 speed is in 6th and often said to have less losses due to friction when compared to the 6 speed.

It's reflected on each dyno 5th/6th gear overlay and separate sheet postings.

On a 6 speed bike 6th will generally show higher than 5th gear.  But 5th gear ratio(on a 6 speed bike) is different than the 5th gear ratio (on a 5 speed bike).  On the dyno we like to show the runs in a 1:1 gear ratio.
Enjoying the hell out of my "hotted" up twincam

Offline Bagger

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I redact my statement and agree with 1:1 final gear ratio runs.

Offline Admiral Akbar

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On a 6 speed bike 6th will generally show higher than 5th gear.
  But 5th gear ratio(on a 6 speed bike) is different than the 5th gear ratio (on a 5 speed bike).  On the dyno we like to show the runs in a 1:1 gear ratio.

Only on DD6 trannies.. OD6 no go...
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Online Durwood

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It's been nearly 2 years and 15K miles since we built and tuned this one, KR brought it in for some off season routine maintenance and I couldn't resist a recheck/tune on the drum and it is still right where it was when it left here in January of 2016..
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Online 1FSTRK

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A testament to the tuner and his equipment. 
This is something we have had locally for three decades but most will never experience.
Great job by a true professional.
"Never hang on to a mistake just because you spent time or money making it."