ninja 250 speed increase

[Drevil]

is there a way to get more that 110 out of my ninja 250r its a 2009 model or is that it?
im on a a2 license and im not really bothered about going over 33bhp ill just play dumb if i get caught with ot been a bit more powerful


(should of got a cbr600)

Thanks

Dave
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Yorkshire man born and bread
A2 on 1/7/09 NINJA 250R

[Blau Zedong]

That's your lot. Probably just a ton a real life.
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18:54:48 Rob Fzs: jews don't give away stuff for free

18:54:59 Rob Fzs: unless its their clothes/ hair/ golden teeth

[Kickstart]

Hi

Probably not a massive amount to come. Doubt its real speed is much over 100mph.

You could probably get someone who knows what they are doing to skim and port the head, reprofile the cams and get a decent full exhaust system (if anyone makes one). Then get someone to set it up properly on a dyno.

Personal guess is that you would get 5hp or so from that (sounds lousy but that is 15% or so).

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[kungfupoodle]

I had a ZZR250 back in 1992ish - your ninja seems to be based on this.

The ZZR made 27bhp. If they've got that same engine up to 33bhp then that's a pretty good tune already!

You might get another 10% with a loud pipe and a jet kit giving you an earth shattering 36.33bhp but then it would be fairly obvious to plod it was tuned and you might get banned.

Don't waist money tuning it. Trade it in for a certified-restricted 600 and ABSOLUTELY DO NOT REMOVE THE RESTRICTIONS BEFORE GETTING YOUR FULL LICENCE

ok?

[Kickstart]

[kungfupoodle]

[Drevil]

oh well never mind
ive had 110 on the motorway kissing the tank but to be honest i think ill just get a 600 in two years

thanks


Dave
____________________
Yorkshire man born and bread
A2 on 1/7/09 NINJA 250R

[Kickstart]

[kungfupoodle]

[stevo as b4]

The Ninja 250R exhaust is more restrictive than the ZZR/GPX, and having a cat+injection means that there is some decent scope for more power from a full race 2-1, with a power commander etc to set up the fueling.

Arata, already make a 2-1 race pipe in Ti, but it's silly expensive. Beet racing also do a very sexy system for £760! I think Muzzy might also have a pipe for them now. I have seen Youtube vids of 250R's making about 32-32.5bhp r/w with this sort of tuning set up. It would equate to mid-high 30's at the crank, which i can see being possible.

As for true top speed, i think PB have had about 108mph out of one, but thats not bad for 33bhp, when you think that 50bhp TZR 250's did about 118-120mph.

[Kickstart]

[kungfupoodle]

[stevo as b4]

Yeah but like Keith says my post was mixing up r/w and crank bhp figures, which is something i normally really hate doing and annoys me no end! The TZR 2/3MA's were about 25-28kg lighter than the Ninja 250 also. I'm sure you could get a Ninja to top around 115mph, with all the head work, cams, race system and extensive and very expensive tuning work. It's not worth ££££'s for another 8bhp or so of course!

I think a decent full 2-1 race pipe, and PC, with a free flowing air filter is still not great VFM, but it's the sensible limit to tuning this bike for a bit more poke and for a reasonable cost.

They are not a bad 250cc bike, and it's a far better sports 250 bike, than anything Honda, Yamaha or Suzuki make. I do hear that there will one day be a YZF R250, but until then it's one of the best current sporty 250's available.

[ncrn]

I also had a ZZR250, a 1990 version, the thing wasn't in great condition but she would do an indicated 110 if you really really pushed it and had a long enough straight to do so. It was fairly gutless mind.

In all honesty you can throw a ton of money at it and get a slight power gain but the money you spend you could just as easily save towards your next bike. Failing that you could say invest the money you may blow on getting the bike tuned on getting some decent tools or some new bike gear or whatever takes your fancy.

Either way a 250 4T parallel twin will always be a 250 4T parallel twin and while you could do some more with it, I don't see the point personally.
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Past: 55 Sym Jet, 91 ZZR250, 03 NSR125R. Present: 97 ER-5.
https://www.nsr125.co.uk - NSR Owners forum.

[Im-a-Ridah]

Go 600cc sportsbike

[Blue_SV650S]

[Mudskipper]

I think we're going to see a lot of these kinds of threads as 33bhp-ers waste their money on these shiny disappointments.

'Ninja' 250s? The CBR125 of the A2 licence.
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CBR125|||GSXR400|||CBR400|||CBR400|||CB250RS|||GSXR750|||CB250RS
"You're clumsy, you eat too much and you behave like a 12 year old boy. But you know what? Every once in a while, you find a thumb."

[Blau Zedong]

[Blue_SV650S]

[Drevil]

i think my ninja is great its really nippy and for a 250 you cant moan at 110 i was just wondering if it was possible to get more out of a stock model with out too mutch trouble
im not to bothered ether way ill just wait my two years and get a cbr600

going to a 250 from a 125 the acceleration is amazing compared to what im used to so i think when i get my 600 its going to shit me up


ohh im looking forward to that

Dave
____________________
Yorkshire man born and bread
A2 on 1/7/09 NINJA 250R

[Mudskipper]

[Blau Zedong]

[tutton]

I wonder how accurate that 110 is,
as there not far off the power of 2stroke rs125's i know this because my RS was faster than one
Not only that but top end of most 6's are around 150ish, yet a 250'll do 110?
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Past: '05 Peugeot XPS '99 Aprillia RS125 '94 FZR600R
Current: '02 ZX636 A1P '51 CCM R30

[Blau Zedong]

[Blue_SV650S]