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Author Topic: Head Work  (Read 8366 times)

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FLHXSE-Mike

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Head Work
« on: November 14, 2009, 10:53:51 AM »
I have an 2010 FLHXSE.  Like most riders, I'm interested in building more power.  I plan on putting in cams (not sure which ones yet), HD heavy breather, Vance & Hines Power Duals head pipes and V & H High Output mufflers and a PowerCommander.  My first question is should I send my heads out for porting and polishing or just look into a different/better set of heads.

My other question is about cams.  I've read alot about cams and realize I know very little about them (I understand how they work but the specs mean very little to me).  On my 08 streetglide, I had a set of Andrews 50HG cams with HD heavy breather, Bub True Duals and a PowerCommander.  I dynoed at 95HP and 105ftp of torque which I thought was respectable from a stock 96" motor.  The problem was I felt the cams came on too late (around 2700 rpm)  I would like a cam that will increase both HP and Torque, come on sooner (2000-2200 rpm), let the motor run cooler and still be dependable enough to ride across county to Sturgis next year.

Any suggestions and comments would be greatly appreciated!
Mike
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Rooster

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Re: Head Work
« Reply #1 on: November 14, 2009, 11:03:01 AM »
Check with Deweysheads on the site about head work and there are lots of people with cam experience here such as HDdude.
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HD Street Performance

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Re: Head Work
« Reply #2 on: November 14, 2009, 11:16:32 AM »
Feel free to give me a call. 253-691-5893
I can give you some ideas to reach your goal without breaking the bank.
Your request is very common, the torque will come up considerable at low rpms and throughout the riding envelope and carry further than stock by doing the headwork, which isn't too evasive, and adding a matched cam.
Thanks Don
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Ed Ramberger - One_Screamin_Eagle

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Re: Head Work
« Reply #3 on: November 20, 2009, 10:54:44 PM »
Quote from: FLHXSE-Mike on November 14, 2009, 10:53:51 AM
I have an 2010 FLHXSE.  Like most riders, I'm interested in building more power.  I plan on putting in cams (not sure which ones yet), HD heavy breather, Vance & Hines Power Duals head pipes and V & H High Output mufflers and a PowerCommander.  My first question is should I send my heads out for porting and polishing or just look into a different/better set of heads.

My other question is about cams.  I've read alot about cams and realize I know very little about them (I understand how they work but the specs mean very little to me).  On my 08 streetglide, I had a set of Andrews 50HG cams with HD heavy breather, Bub True Duals and a PowerCommander.  I dynoed at 95HP and 105ftp of torque which I thought was respectable from a stock 96" motor.  The problem was I felt the cams came on too late (around 2700 rpm)  I would like a cam that will increase both HP and Torque, come on sooner (2000-2200 rpm), let the motor run cooler and still be dependable enough to ride across county to Sturgis next year.

Any suggestions and comments would be greatly appreciated!
Mike

A set of 259E cams will bolt in and significantly build the mid and top end.  Add exhaust and tuning and it will be a big improvement without breaking the bank or taking the heads off.
« Last Edit: November 20, 2009, 10:57:54 PM by One_Screamin_Eagle »
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FLTRSEI -Delphi Conversion, 103", 251 cams, Heavy Breather & a couple other little tweaks

DICKW

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Re: Head Work
« Reply #4 on: November 21, 2009, 06:34:25 AM »
Why not try the Header pipe , Mufflers, some type of Tuner, and a Good tune first.

You will wake the motor up, and I personally believe you may even be impressed with the #'s and performance difference from what "Out of the showroom performance" your getting now.



JMHO
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ggraham45

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Re: Head Work
« Reply #5 on: November 21, 2009, 08:36:09 AM »
get ahold of hillside cycle there doing the 110 with the stock heads.there dynoing at around 125 to 130 tq and hp.i had them do a 117 from my 08 serk things making 100 ftlb of tq at 1700 rpms
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mr_magoo

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Re: Head Work
« Reply #6 on: November 21, 2009, 08:45:51 AM »
You might give Short Block Charlie a call he does a lot of engine work and is a member of the site.
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Cat Eye

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Re: Head Work
« Reply #7 on: November 21, 2009, 09:03:22 AM »
On my 2010 LTD, I just had installed:
SE MVA Heads
10.5:1 SE pistons
255 cams
V & H Power Duals
V & H Monster Ovals

No dyno #s yet, but seat of the pants is WOW....
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geezerglide

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Re: Head Work
« Reply #8 on: November 21, 2009, 10:01:36 AM »
Quote from: mr_magoo on November 21, 2009, 08:45:51 AM
You might give Short Block Charlie a call he does a lot of engine work and is a member of the site.

As my 2010 ULTRA Limited is in Phoenix having Charlie do some headworks and change the valves. installing Andrews 54H Cams, Supertrapp Fatshotz slip on onto Catless header pipe (Fullsac) and will tune with the HD SEST. Hopefully will know this week how it runs.

geezerglide
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rlavigna

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Re: Head Work
« Reply #9 on: November 21, 2009, 11:11:34 AM »
The HD version of that pipe has the EPA stamp on it.  I am curious how it sounds and performs.  I noticed that Grinner had it on his bike.

Quote from: geezerglide on November 21, 2009, 10:01:36 AM
As my 2010 ULTRA Limited is in Phoenix having Charlie do some headworks and change the valves. installing Andrews 54H Cams, Supertrapp Fatshotz slip on onto Catless header pipe (Fullsac) and will tune with the HD SEST. Hopefully will know this week how it runs.

geezerglide
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geezerglide

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Re: Head Work
« Reply #10 on: November 22, 2009, 12:29:55 AM »
Quote from: DRTYK9 on November 21, 2009, 11:11:34 AM
The HD version of that pipe has the EPA stamp on it.  I am curious how it sounds and performs.  I noticed that Grinner had it on his bike.


So does the Supertrapp Fatshotz. Which are probably Private Labelled for HD. Also, anyting I have seen that is Private Labelled for HD by reputable manufactrers is dumbed to meet "HD Specifications", higher profit margins.

geezerglide
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aka_Matt

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Re: Head Work
« Reply #11 on: November 22, 2009, 01:17:46 AM »
remember that your engine is "granite" color, and the SE heads or other "stock" heads will not match in color... a cam with mid 30's intake close will work good at stock compression, the bigger cams like the 259 will need 10.5 or so...

n2358, your running 10.5 compression with the 255 cam?? omg, thats high for a cam with a 25 intake close... u should be using the 259 at that compression...
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jfh

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Re: Head Work
« Reply #12 on: November 22, 2009, 06:07:32 PM »
Quote from: n2358 on November 21, 2009, 09:03:22 AM
On my 2010 LTD, I just had installed:
SE MVA Heads
10.5:1 SE pistons
255 cams
V & H Power Duals
V & H Monster Ovals

No dyno #s yet, but seat of the pants is WOW....

I'd be interested in what your cranking compression (CC) is using 10.5 pistons w/255 cams in the 103" motor. The CC on a stock 110 (9.3:1 compression & SE255 cams) is already well above 200 psi and I wouldn't consider raising it further with 10.5:1 pistons. The minimal overlap of the 255 provides great low end grunt but is also responsible for elevated operating temps in the 110.
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happyman

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Re: Head Work
« Reply #13 on: December 07, 2009, 02:40:48 PM »
Quote from: ggraham45 on November 21, 2009, 08:36:09 AM
get ahold of hillside cycle there doing the 110 with the stock heads.there dynoing at around 125 to 130 tq and hp.i had them do a 117 from my 08 serk things making 100 ftlb of tq at 1700 rpms

ahhhhhhhhhhhhhh  no way in hell those #'s are credable!! its just that simple. has to be a very very happy dyno to say the least.    Cannot take anything away from Hillside as they seem  to do great work and know how to do a nice build.  the numbers are misleading for the vast majority of the updated  dyno's. just look at some sheets with the 110" with a aircleaner,good exhaust and a tune.   there is a significant differance. there  are others that put out some pretty hard to believe numbers. most are pushing  the work and do good work but most like realistic numbers..   you cannot compare some of these  dyno with anything out there  becasue they are so far off.
this will prolly upset some, but that is just  to bad. and don't matter the least.   the people  that don't no better will be sadly dissapointed in many instances  by the published razzle dazzle  we see every day. quality work wil sell itself.   
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springer128

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Re: Head Work
« Reply #14 on: January 23, 2010, 08:35:25 AM »
most people  great  air filter , great exhausts , new cams and more CI , new maps , but the heads and injection module ( diameter and injectors capacity) remain bottlenecks....if stock....


best
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