103 engine build advice

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Jan 19, 2011 | 01:55 PM

#11

jeff.georgalas

Outstanding HDF Member

Joined: Apr 2009

Posts: 2,523

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From: Illinois

Not sure for your model, but there are a lot of guys with baggers on here running the SE 203's and 204's, and are posting some GREAT numbers. Comparable to the Woods 6-6's and 555's.

Jan 19, 2011 | 02:29 PM

#12

domenicp7

Outstanding HDF Member

Joined: Jun 2007

Posts: 2,687

Likes: 6

From: Kalaui Kona HI

Quote:

Originally Posted by clayman

I want a good strong engine that pulls hard and is fun to ride. I want something that is reliable and runs on pump gas. Im looking for advice from people that have done similar builds and how they like the results. Ive been searching the internet and asking questions but sometimes too much information confuses a bit. Im looking for some opinions on what other people have done. Thanks

Love mine reliable pulls strong great on the highway all this bull about the 255 cam is from people that have not run it. I didn't buy a Harley to race it, so I seldom run the engine over 3500 rpms and would hate to have a cam that had all its power up top.

Jan 19, 2011 | 03:00 PM

#13

clayman

Thread Starter

Road Master

Joined: Feb 2006

Posts: 956

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Domenicp7, thanks for the info. Do you know what your HP and TQ are?

Jan 19, 2011 | 04:15 PM

#14

formike56

Club Member

Joined: May 2008

Posts: 2,468

Likes: 1

From: San Marcos, Texas

I installed S&S 585G's And my #'s are 110 & 114. With the higher compression will achive a little more.

Jan 19, 2011 | 04:33 PM

#15

sePArider

Intermediate

Joined: Sep 2010

Posts: 29

Likes: 0

From: West Chester PA

Quote:

Originally Posted by clayman

Thanks for the info. The more i hear and read im thinking different cams but my problem is im having an hd dealer do the work. They are a pretty good shop and use alot of aftermarket parts but my dilema is the $2500 im getting back from hd for buying a 2010 bike. Can anybody suggest a cam that would be comparable to the ones already suggested. Also am i better off going with forged pistons, bumping my compression ratio up to 10.5-1, and spending money on valve springs push rods etc. Thanks again for the info

I am adding a 103" Stg 3 kit to my '10 Fatboy this week. My local dealer offered 15% off parts and labor for the package. It seems like a combination that is hard to pass up. The kit includes 10.5:1 pistons/jugs, 259e cams and SERT. They picked up the bike and will deliver it back home for free. And while all the ice/snow is on the roads that is fine with me. When the weather warms up I'll use the SERT data logger to do a bit of tuning. You might want to look at the Stg 3 kit as well, p/n 27513-08B.

Jan 19, 2011 | 05:06 PM

#16

xkvator

Tourer

Joined: Aug 2005

Posts: 397

Likes: 0

From: s.w. pa.

Quote:

Originally Posted by U-234

Decide what you really want out of the build. How do you really ride? Where do you want the TQ? HP? Then do your research. Narrow your choices and then ask opinions.

what he said...

i'd forget about #'s...and the Thundermax...and the high comp.

read some good reports on the 204's in a 103...

have them put Timken inner cam bearings in...

i'd go with a TTS, but my friend has the new HD tuner and likes it...

get the SE Compensator...

jus sayin'...

Last edited by xkvator; Jan 19, 2011 at 05:08 PM.

Jan 19, 2011 | 05:14 PM

#17

p51bombay

Ultimate HDF Member

Joined: Jun 2010

Posts: 5,105

Likes: 16

From: Blaine, WA

Is there any reason the 204 would not work with a TC96 upgraded with a 103 kit? HD says it fits TC88.

Jan 19, 2011 | 07:02 PM

#18

kk6pg

Outstanding HDF Member

Joined: Nov 2007

Posts: 2,289

Likes: 22

From: Beautiful Downtown Burbank

Quote:

Originally Posted by p51bombay

Is there any reason the 204 would not work with a TC96 upgraded with a 103 kit? HD says it fits TC88.

The roller chain version of the 204 works well in a 96 or 103, and is perfectly happy without raising the compression.

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Jan 19, 2011 | 09:59 PM

#19

CarbideDude

Tourer

Joined: May 2006

Posts: 449

Likes: 0

From: Helena, AL

I was about to go this route for my 09 FLHX (103", 204 cams, stock heads and compression) but my dealer is strongly recommending that a geared cam will provide much better performance and eliminate backlash. Are those of you "in the know" in agreement with this statement, or is it irrelevant?

Jan 19, 2011 | 10:11 PM

#20

jeff.georgalas

Outstanding HDF Member

Joined: Apr 2009

Posts: 2,523

Likes: 3

From: Illinois

Quote:

Originally Posted by CarbideDude

This is not true for bikes manufactured after 2007. I hear more misinformation from people who have talked to dealerships than from anywhere else, no bullshit. You'll learn far more on here than you ever will at a dealership. I didn't look at your signature, so I don't know what you're riding, but if it's a post 2006 you do not need gear driven cams.

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