Update on PCIII with DNA airfilter & Yoshi slip-ons - Wrist Twisters
 
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post #1 of 4 Old 09-20-2009, 08:12 PM Thread Starter
Tirone
 
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Smile Update on PCIII with DNA airfilter & Yoshi slip-ons

Some may remember one of my recent posts regarding the question whether a PCIII was important enough to buy when install both a "upgraded" air filter and "race" exhaust slip-ons.

After some intense installation time and other modifications needed, I was able to take the 9'er for a good long run today. We went to an All Club meet in Stockbridge, MI (what a great collection of motorcycles). This event required me and a friend to ride almost 100 miles each way.

Wow... what a difference a the PCIII made to my motor. It feels like it revs faster and there is no hesitation when you twist it back. I'm not saying that the 919 IS faster, just saying that there is a vast difference in the response of the motor compared to stock. There was a difference in sound coming out of the exhaust (not like that is important - LDH).

Thanks to all (alot) of the help from mcromo44 which made my purchase, install, and programming much less a pain in the arse than it could have been. Your advise and resource is invaluable.

I think I will go with the alternate map you had recommended (richer), since I feel that the motor was running a bit too lean for the type of riding that I was & will be doing. Although I do like the reponsiveness of the primary map you suggested.


Thanks again to all who have made my experience with my 919 much more enjoyable.

Phil

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post #2 of 4 Old 09-20-2009, 09:04 PM
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Phil,

Glad to hear it all worked out.
Sounds like you are planning on having that nice 919 mill on the boil more than just on the odd occasion.
If so, a few more suggestions.
1
Use Regular fuel not Premium (per Lord Duck Hunter's dyno research of a few years back on low and high static compression engines, keeping in mind that with modern era "fast combustion chamber" designs, a high 10 static ratio is actually a relatively low C R compared to days of old)

2
If you are prepared to either store your bike in a warm place, or do a pre-winter coolant change, try a 4 litre coolant recipe of 250 ml of Ethylene Glycol, 120 ml of RedLine Water Wetter, remainder Distilled Water. This will give you a freeze point of about 9 F but more importantly, increase the heat transfer rate and specific heat of the coolant, which means more heat rejection by a lower coolant temperature. It's all about cylinder head temp around the combustion chamber. Another way of looking at it, is that it effectively makes the cooling system "bigger". It's worth it for track days, but not for just running around town.
The Redline website has some good info on this, but nothing on glycol/water ratios. I had to find that else where. If I lived in California and it never froze, I'd be running a 10 % Glycol cut instead of 25 % in my coolant mix.

3
Not really a power thing, but worth doing. I put DEI header wrap on the primary tubes from the exhaust port flange to just past the bottom of the rad. Also on the Y Pipe around the rear shock. Also put DEI heat reflective tape on the inside of the triangular heat shields. The radiant heat at low speed is now much lower, it's cooler for my wife when she's on the back, and my spiffy Penske shock doesn't get as warm anymore.

Hey - still waiting to hear what a "Cager" is !

mcromo44

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post #3 of 4 Old 06-13-2013, 04:36 PM
Tirone
 
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phil, im brand new on the site and im a huge lover of my 919. i have a 06 and it has yoshi pipes on it with a power commander 3. my problem im having though is i cant find a map for it at all. so im having to use a map thats making it have a horrible back fire. if you can possibly give me the numbers from your so i can program it that would be very helpful. my e mail is [email protected]. not sure if you need my e mail or not to send it to me. thank you

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post #4 of 4 Old 06-13-2013, 06:13 PM
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Quote:
Originally Posted by popeye8300 View Post
phil, im brand new on the site and im a huge lover of my 919. i have a 06 and it has yoshi pipes on it with a power commander 3. my problem im having though is i cant find a map for it at all. so im having to use a map thats making it have a horrible back fire. if you can possibly give me the numbers from your so i can program it that would be very helpful. my e mail is [email protected]. not sure if you need my e mail or not to send it to me. thank you
Popeye, way old thread man.

Here is a link to where we keep a ton of maps for the power commander and 919, specifically.

http://db.tt/76Je3yF4

As for the popping, do the pair valve removal. That will get rid of it. See video below.

http://www.youtube.com/watch?v=xa4-OEqCfhI

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