April 15th, 2015, 02:55 PM | #1 |
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Name: Kurgan
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Two questions about power mods
1. Is there a set formula for which carb jets to use for specific parts combinations? Like since I finally got the Two Bros carbon full system, I want to combine it with the K&N air and oil filters with Royal Purple oil, and maybe the airbox/snorkel modification recommended by the DynoJet kit. Which jets should be used?
2. Exhaust wrapping or ceramic coating. Is it worth it on the 250, especially on an the 2Bros full system? Does it make the bike at least feel like its running cooler when the summer temperatures finally get here to Texas? |
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April 15th, 2015, 03:26 PM | #2 | |
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April 15th, 2015, 05:13 PM | #3 |
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Dyno tests have proven that oils like Royal Purple have less friction, and free up some horsepower, not much, but even 1HP is a noticeable gain on a small bike like this.
That means the carb and jet settings (or EFI mapping on injected bikes) COULD need to be changed to accommodate the higher horsepower potential. |
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April 15th, 2015, 05:15 PM | #4 | |
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April 15th, 2015, 05:32 PM | #5 |
wat
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Royal purple is a waste of money and will not make any difference at all for power unless you switched from something like ... vegetable oil or something 100k miles old.
covering your headers will make the bike run hotter.
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April 15th, 2015, 07:48 PM | #6 |
Track Clown
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you may see gains in HP on an 8 cylinder high displacement engine, but a 2 cylinder 250, no.
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April 15th, 2015, 07:57 PM | #7 |
Freedom for Germany
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Some oils, like Motul 300V, can give a power-gain up to 3% (even on a 2-cylinder).
But also please keep in mind, that Motul 300V is a real racing-oil though it's declared as street legal. |
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April 15th, 2015, 08:02 PM | #8 |
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Once more any actual test done? not just words on the bottle?
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April 15th, 2015, 08:25 PM | #9 |
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Google. Bing. Dogpile.
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April 15th, 2015, 08:26 PM | #10 |
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OK, I have to admit that my numer of 3%, taken from the talk in german forums may have been a little bit to hopeful, so take this from the Motul-Webiste: ...300V Factory Line Road Racing gives a power increase of 1.30%...
Link: https://www.motul.com/de/en/about/30...tion-lubricant By the way there are many sites in the www where one could find things like this by himself/herself (if one wants). |
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April 15th, 2015, 08:30 PM | #11 | |
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April 15th, 2015, 08:40 PM | #12 |
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April 15th, 2015, 09:15 PM | #13 | |
wat
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April 15th, 2015, 09:29 PM | #14 | |
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April 16th, 2015, 01:45 AM | #15 | |
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So what should we think about dyno runs showed from companies here in the forum i.e. about exhaust systems? Would you say when they need to sell them then we should also not trust in their results? Lucky one for sure can trust in any such information given from a German company |
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April 16th, 2015, 06:23 AM | #16 | |
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April 16th, 2015, 07:18 AM | #17 | |
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But also the laws and regulations are so clear that the rules for everything are strictly given and enforced. Also please don't forget i.e. about the TUV - which worldwide stands for the best test organisation, just remember the DIN EN ISO 9000 Quality Management System. Make a selftest and ask you which high-tech cars nearly everyone in the world would like to have (besides the Italians and not the Japanese) or where the worldwide best high-tech machines are produced... And now please let's stop this off-topic talk before it could become political and not break this thread more than we already did - @Kurgan excuse me please for the off-topic. |
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April 16th, 2015, 09:31 AM | #18 |
Track Clown
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.03 x 27 = .81 - hardly worth it.
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April 16th, 2015, 05:36 PM | #19 |
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Since the ultimate fate of the bike is a track day toy a year or two down the road, every ounce of power is needed.
Also just to clarify, I already know all of you that say "RP oil doesn't work" are wrong. I've been running the stuff for 5 years already and I was able to feel the difference the minute I finished the oil change from the oil that was in it from the dealership with the stock oil filter which was then changed out to RP 10W40 and the K&N oil filter. Those were the ONLY changes that day because I went out for a short ride to warm up the stock oil before the change, then went right back out after it was changed and could definitely feel the difference. The bike had more power, the oil really does work as advertised. |
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April 16th, 2015, 08:54 PM | #20 |
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Placebo.
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April 16th, 2015, 09:00 PM | #21 |
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It sounds like it's result on Formula 1 cars, they don't put crappy oil in those OTOH, results in Formula 1 car are not very likely to be applicable to a $3000 bike. In high performance engines, all other power gains are already taken, so the high performance oil might have measurable effect. On our bike, there is so much of uncorked potential gains, that unless you spend many, many thousand dollars on it, high performance oil will not start moving the needle.
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April 16th, 2015, 09:00 PM | #22 | |
wat
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April 16th, 2015, 09:04 PM | #23 |
wat
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also, 335 torque vs 352 torque? yeah. i'm SURE the oil did that. had NOTHING to do with the way they set up the dyno, or any other mods to the car.
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April 16th, 2015, 09:04 PM | #24 | |
Track Clown
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Quote:
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April 16th, 2015, 09:35 PM | #25 |
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Sand baging it.
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April 16th, 2015, 11:27 PM | #26 |
Freedom for Germany
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After here so much high qualified answers were given, I want to ask those whose high expertise knowledge apparently must be larger than that of the engineers in the concerned companies, why don't you start a production and give us the honor with the best product forever?
I for sure would buy it |
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April 16th, 2015, 11:29 PM | #27 |
Track Clown
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Statements like that would have nothing to do with selling a product now would it?
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April 17th, 2015, 06:38 AM | #28 | |
wat
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April 17th, 2015, 07:46 PM | #29 |
ninjette.org guru
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The old oil only had 1000 miles on it, the vast majority of which were babied slow miles during break-in.
To the person who said "placebo", nope. Now, end the oil garbage, I know the stuff works, and it's obvious that none of you have the guts to try the stuff because you'd rather believe the naysayers than anyone who claims positive results. You're so deathly afraid of "being marketed to" that you already form a negative opinion about something regardless of what you hear otherwise. Now back to my question......K&N Air filter, Two Brothers M2 Carbon Black Series full pipe, DynoJet kit, possible snorkel and airbox mods. Which jets to use??? |
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April 17th, 2015, 10:00 PM | #30 | |
Freedom for Germany
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Also when you search for that you'll find the following links with great informations too. Links: https://www.ninjette.org/forums/showthread.php?t=10208 https://www.perthstreetbikes.com/for...d.php?t=120566 http://www.kawiforums.com/ninja-250r...-database.html http://www.kawiforums.com/ninja-250r...iscussion.html http://www.250ninja.net/articles/ninja_250_jetting.html Good luck for your project |
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April 18th, 2015, 12:06 AM | #31 |
Track Clown
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buy a jet kit and follow instructions on the kit.
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April 18th, 2015, 06:54 PM | #32 |
ninjette.org guru
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I already bought the DynoJet Stage 2 kit, it comes with multiple jets of different sizes, and doesn't tell you specifically which ones to use.
I was hoping that someone would have already tried this parts combination before and could give some actual help on the subject.... |
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April 19th, 2015, 05:30 AM | #33 |
Track Clown
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i used the biggest jet, and put the washers in the middle of the pins. I have a K/N pod filter and muzzy slip on exhaust. Ran it on the dyno and it was pretty smooth topped at 27hp @ about 3500 ft. Elevation
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April 19th, 2015, 06:31 PM | #34 | |
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April 20th, 2015, 08:30 PM | #35 |
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