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  #721  
Old 14th August 2019
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I don't see 9.1:1 anywhere?
04 883s were 8.9:1
1200s were 9.7:1
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  #722  
Old 14th August 2019
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Quote:
Originally Posted by Hippysmack View Post
I don't see 9.1:1 anywhere?
04 883s were 8.9:1
1200s were 9.7:1
Huh? 04 1200 says 9.1

Quote:
Originally Posted by shanneba View Post
Here is what I found in the Owner's Manual Specs (2003, 2004. 2007), Sportster Pedia (cam changes) and Hammer (head changes)

Code:
+------+--------+-------------+----------+------+---------+---------------------------+-------------------+
|      |        | compression | torque   |      |         |                           |                   |
|      |        | ratio       | Ft / Lbs | rpm  |         |                           |                   |
| 2003 | 883    | 9.0         | 49.0     | 4500 |  D cams |                           |                   |
|      | 1200   | 9.0         | 68.0     | 4000 |  D cams |                           |                   |
|      | 1200 S | 10.0        | 72.0     | 4000 | W cams  |                           |                   |
|      |        |             |          |      |         |                           |                   |
| 2004 | 883    | 8.9         | 51.0     | 4300 |  D cams |                           |                   |
|      | 1200   | 9.1         | 79.0     | 3500 | W cams  | Head change 62 cc chamber | larger 7mm valves |
|      |        |             |          |      |         |                           |                   |
| 2007 | 883    | 8.9         | 55.0     | 3500 | W cams  |                           |                   |
|      | 1200   | 9.7         | 79.1     | 4000 | W cams  |                           |                   |
+------+--------+-------------+----------+------+---------+---------------------------+-------------------+
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  #723  
Old 14th August 2019
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My bad.
I thought you were talking about the wiki.
I haven't been able to verify the others yet.
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  #724  
Old 14th August 2019
shanneba shanneba is offline
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The 2004 1200 and 1200R are both listed at 9.7:1 in the owners manual. My mistake in the chart earlier.


https://serviceinfo.harley-davidson....f7d60410!!1!18
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  #725  
Old 14th August 2019
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Bone Stock Dyno
http://xlforum.net/forums/showthread.php?t=2056042
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  #726  
Old 14th August 2019
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Quote:
Here is what I found in the Owner's Manual Specs (2003, 2004. 2007), Sportster Pedia (cam changes) and Hammer (head changes)
Shanneba, the quoted torque figures seem to have remained broadly consistent over the years which is what you might expect.
I was talking about BHP. Not so easy to find power figures, so I used the EPA motorcycle emissions data download from 2015 -
then converted to BHP from KW.
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  #727  
Old 14th August 2019
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Quote:
Originally Posted by shanneba View Post
Thanks for the link.
I'm almost done with Evos but they don't have 2001 info there that I could find.
If any body has that info, I need to verify it before plugging it in.

Quote:
Originally Posted by Four Speed View Post
Shanneba, the quoted torque figures seem to have remained broadly consistent over the years which is what you might expect.
I was talking about BHP. Not so easy to find power figures, so I used the EPA motorcycle emissions data download from 2015 -
then converted to BHP from KW.
Can you show us how to go about finding that info and calculating?


Quote:
Originally Posted by rocketmangb View Post
I need a dyno chart for dummies course.
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  #728  
Old 14th August 2019
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from my owner's manual 2001

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  #729  
Old 14th August 2019
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My '05 owners handbook says
883.. 51.0ft lbs@4300rpm comp' ratio 8.9-1
1200.. 79.0ft lbs@3500rpm comp ratio 9.7-1
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  #730  
Old 15th August 2019
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Thanks guys,
I got 86 up except 2011, 2014, 2017,2018 and 2019.
I'll use this also this to finish filling in the individual history sections when I can get back to them.

Officially we know that the MoCo stopped including BHP in 2001 and torque values in 2011 or 2012.


Quote:
Originally Posted by Four Speed View Post
Not so easy to find power figures, so I used the EPA motorcycle emissions data download from 2015 -
then converted to BHP from KW.
Can you show us how to go about finding that info and calculating?
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