headwork aka port & polishing info - Page 5 - BMW S1000RR Forums: BMW Sportbike Forum
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post #41 of 220 (permalink) Old 11-03-2012, 07:55 PM
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Originally Posted by bsinclair View Post
they have ported heads,larger cams,valvesprings,retainers,rods, over 14:1 compression pistons and a unobtainable ecu...nothing stock in those motors...

as far as brock having a happy dyno i guess the other dynojet 250's ive been on in different states is happy also as they read within a few hp of each other.
Brock's dyno has been historically 2-3 HP higher than mine on a 200 HP bike, Bob's has been double that. That's why it's always important to do a baseline.
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post #42 of 220 (permalink) Old 11-04-2012, 10:04 AM
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Price?

OK, I see the flow numbers…. thanks.

Last edited by George Villar; 11-04-2012 at 10:09 AM.
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post #43 of 220 (permalink) Old 11-07-2012, 02:13 PM
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i already know for a fact by decking the head and adjusting cam timing these bike pick up 10hp.

..
How will you adjust the cam timing. Does this model have oem adjustable sprockets?
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post #44 of 220 (permalink) Old 11-07-2012, 02:14 PM
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Stupid question to follow...

What exactly would have to be sent? The entire motor? I'm not familiar with this process. Thanks.
Just the cylinder head needs shipped.
Here's an 09R1 I did for the owner of Costa Rica Yamaha a few months back.

09R1porting how to - YouTube

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post #45 of 220 (permalink) Old 11-07-2012, 02:21 PM Thread Starter
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Quote:
Originally Posted by Big Jay View Post
How will you adjust the cam timing. Does this model have oem adjustable sprockets?
The s1000 has factory adjustable cam sprockets.
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post #46 of 220 (permalink) Old 11-07-2012, 02:56 PM
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Originally Posted by BSR-1 View Post
Just the cylinder head needs shipped.
Here's an 09R1 I did for the owner of Costa Rica Yamaha a few months back.

09R1porting how to - YouTube
FYI this isn't the same guy who started this thread !!


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post #47 of 220 (permalink) Old 11-07-2012, 04:27 PM
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FYI this isn't the same guy who started this thread !!


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Correct.
I was just answering the question by showing the piece involved and a little bit of how it's done.

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post #48 of 220 (permalink) Old 11-07-2012, 11:06 PM
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The s1000 has factory adjustable cam sprockets.
I figured there had to be a reason we had not made those.
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post #49 of 220 (permalink) Old 11-08-2012, 08:54 PM Thread Starter
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thought i would give a update with pictures...





this is a quote from my freind that did a little write up for his business website...

Ive been working on this one for awhile now trying to improve on an out of the box impressive design . BMW did thier homework ! Without damaging the velocity Ive managed to increase airflow in this head by as much as 19% near max lift (the smallest gain being 7% at .1-.15 lift . The BMW cam profile and rocker design is simply genious enabling them to hold the valve open at max lift far longer than any of the japanese profiles .
After much time and thought (you cant imagine what goes into a port development for those that actually develop thier own and dont just steal others) I am excited to unviel this one . We should have dyno results within the next couple of weeks .
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post #50 of 220 (permalink) Old 11-08-2012, 09:02 PM
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Really long forward to dyno results on this. I hope you're not doing any other mods at the same time so we can have a good comparison.

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