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post #1 of 6 (permalink) Old 05-29-2008, 01:38 PM Thread Starter
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Advice on more mods.

I am looking to extract the most horsepower from my bike. Yes I know it's been said a million times but I am on the right path. This is also not my first bike and I'm not some 18 year old kid with big dreams and no money. Anyways my bike is a 2006 F4i with the following mods:
Full Akrapovic exhaust w/carbon can
Velocity Stacks
BMC Air Filter
Power Commander 3 usb

With these mods in an untuned state the bike put down 99.16hp and 42.21 ft/lbs of torque.

I have compiled a list of mods that will be next consisting of:

Dynojet Ignition Module
High Temp Coating the exhaust header and midpipe
Brisk Spark plugs + indexing plugs
Engine Ice to help keep temps down
Full custom map
Indexing Cams

I am very happy with what the bike has done so far and I believe that I can extract a few more out with a proper tune. Please comment on any of the mods and your thoughts or any ideas you might have for making more power. I am also looking to stay out of the engine, no cams, pistons, turbos etc...for now. Also I don't want to hear anything about "sell it and buy a 1000" or anything along those lines. I am purely looking to see what these motors can make with a well tuned package of parts. I am making it an illustration to some of my fellow friends that ride that what matters is not a hodgepodge of parts slapped on but a careful selection of quality parts done together to make the most gains. Thanks.
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post #2 of 6 (permalink) Old 05-29-2008, 02:39 PM
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do a 520 convo and go 1-/+1 or -1/+2 and you feel the power alot better.

And were those # at the wheel or the crank?
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post #3 of 6 (permalink) Old 05-29-2008, 06:32 PM
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Not wanting to get into the engine limits what you can do. You could spend a lot of money but its hard to beat the instant hp increase from an oxygenated fuel such as nutec. Drain the tank, fill with Nutec, tune on dyno and there you go. Instant 5 horsepower.

I would suggest milling the head .010" and dropping in some cams and maybe new valve springs depending on how aggressive the cams.
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post #4 of 6 (permalink) Old 05-29-2008, 10:09 PM
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or just selling it and buying a newer RR or for more power no replacement for displacement

"It takes alot of anything to make my bike to something"
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post #5 of 6 (permalink) Old 05-30-2008, 12:19 AM Thread Starter
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Those numbers were at the wheel. I tested the bike at Corse Superbikes in Saukville, Wisconsin. Awesome place if you in the area stop in. That was on a dynojet dyno running the winpep software. I am thinking of doing cams but would like to do everything else prior to that point. I realize that buying a 600rr would be a better stepping stone but I am more of a tinkering kind of guy and like to constantly tweak the stuff I have.
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post #6 of 6 (permalink) Old 05-30-2008, 11:27 AM
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Well please let me know what you think of the brisk plugs. I looked at them when I changed my plugs this time but couldn't justify the cost. You'll probably gain something with a custom map but I'd wait until you've changed everything you want to first. If I'm not mistaken,there's an airbox modification that Erion espouses. I agree with changing the rear sprocket to Ti or alum and changing the chain size and gear ratio. To be honest,unless you're interested in NOS,I'd concentrate on weight savings at this point. I don't think you're going to get the results you want without cracking the cases. In my experience,when you get to this point there's a $$/hp ratio that is too steep for my wallet. Ofcourse it's your bike and your wallet so maybe it's worth it to you.

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