NSR250.net Forums Logo: Honda NSR 250 Forums, Classifieds and Service Manual in English. Covering All Honda NSR 250 MC16, MC18, MC21 and MC28 models
NSR250.net Forums

#
 
#
 
Performance Engineering

  • NSR250 Forums Index ‹ NSR250R Discussion
  • Members Content
  • Members Garage
  • Subscription
  • Transactions
  • FAQ
  • Search
  • Register
  • Log in

400'S Horsepower?


This topic is locked: you cannot edit posts or make replies.   printer-friendly view
Page 1 of 1   Download Topic





NSR-LOVER

 
Posts: 223
Joined: 19 Jun 2006

Location: Greece
    Send private message View user's profile Send e-mail
    Reply with quote  

400'S Horsepower?

Sun Sep 03, 2006 7:11 am » Post: #1 » Download Post

anyone who knows the horsepower on wheel for stock 400's like CBR,VFR,RVF,FZR,GSXR,ZXR ?
Back to top


fontyyy

 
Posts: 3509
Joined: 10 Apr 2004

Location: Derbyshire, England
1991 Honda NSR250 MC21
    Send private message View user's profile Visit poster's website MSN Messenger
    Reply with quote  

Sun Sep 03, 2006 9:18 am » Post: #2 » Download Post

pre 1993 60 bhp, after that 55, it was the law, same as 45 then 40 for the 250's.
In reality, most 400's make mid-high 50's std, low 60's with a tweak or two, 80+ if you throw big big money at them.

Real life performance they are ultimately faster than a similarly tuned 250, hence Honda gave up F3ing the NSR in favor of the RVF.

I've got both, HRC carded, Tyga piped NSR (around 61bhp) and an HRC CDi, JHA piped RVF (66bhp), performance wise the RVF will just check out, gone, see ya at the pub etc, especially on the road.
But on the track or for a summer blast the NSR is the tool of choice, it is a Samuri sword to the gattling gun of the diesels, wheather I'm faster or slower than anyone else is irrelevent, it's so much harder to get the best out of and a thousand times more rewarding for that exact reason.
_________________
Please do not PM me technical questions, if you can't find it on the Forum start a thread


Last edited by fontyyy on Sun Sep 03, 2006 5:37 pm; edited 1 time in total
Back to top


Andy
Site Admin
 
Posts: 11948
Joined: 19 Jan 2004

Location: Devon, UK
1991 Honda NSR250 MC21
    Send private message View user's profile
    Reply with quote  

Sun Sep 03, 2006 1:28 pm » Post: #3 » Download Post

Well saved Fontyyy... nearly had the thread lock out!! Wink
_________________
Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.


Check us out on Facebook! Please "like" our page!
Back to top


fontyyy

 
Posts: 3509
Joined: 10 Apr 2004

Location: Derbyshire, England
1991 Honda NSR250 MC21
    Send private message View user's profile Visit poster's website MSN Messenger
    Reply with quote  

Sun Sep 03, 2006 2:00 pm » Post: #4 » Download Post

Maybe I should also point out if you've got the skills an NSR in the right hands (that'll be someone like Matt's hands then, not mine!) can give a grid full of big diesels a run;

Look at bike #25, then look at the rest, he came 3rd!

As far as I can see, you can nearly make an NSR into a GP bike, or you can nearly make a 400 into a half decent club racer Wink
_________________
Please do not PM me technical questions, if you can't find it on the Forum start a thread
Back to top


Hermit

 
Posts: 588
Joined: 08 Jun 2005

Location: Paraparaumu, New Zealand
1992 Honda NSR250 MC21
    Send private message View user's profile
    Reply with quote  

Sun Sep 03, 2006 6:22 pm » Post: #5 » Download Post

Bestow education upon me! So the RVF has a bit more power and makes a bit more power, more of the time (i'm guessing) than the 250, but it weighs SO much more - i don't get how it can be faster? On the brakes and cornering the NSR has it by the balls surely? The only thing that i could imagine letting the NSR down is bad gear selection so it drops out the power but anyone can choose gears well enough to keep it in the engine's best power all the time, whether it be on road or track. And in a straight line wouldn't the NSR leave the RVF aswell? Atleast up to top speed where the extra power would come in and aerodynamics would be more important and weight no longer an issue. Or does weight make less of a difference than i have been led to believe?

Its confusing because i've seen 400s icing 250s down the straights in club races with my own eyes so i know what **** sayin must be true but i don't get why?! consarnit
_________________
After years of moaning about immigrants now i am one...
Back to top


Dave Ett
Site Moderator
Site Moderator
 
Posts: 3648
Joined: 20 Feb 2004

Location: Gloucestershire, England
    Send private message View user's profile
    Reply with quote  

Sun Sep 03, 2006 9:31 pm » Post: #6 » Download Post

Having raced both, the 400 is so much easier to ride as the spread of power is greater. Chuck in the rejetting for a two stroke at each track, and the whole situation gets worse unless you're spot on each time.

The NC for instance, made good power from 8 to 15000 rpm. The NSR makes it from 8-12000. Unless you can be bothered changing individual gears for each track, there's always a corner where you're stuck between two, and that's where you loose time.

Don't get me wrong, the best boys on the TZ and RS tackle will wipe the floor with a 400, but it's not really a fair fight is it?

But as Fontyyy says, get it right on the 250 and it's awesome. Getting it right on a 400 just requires you to keep it on the tarmac.
_________________
MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

Back to top


Matt@TYGA
Supporter - Vendor
Supporter - Vendor
 
Posts: 1818
Joined: 15 Sep 2004

Location: In my office chair, in Pattaya, Thailand
    Send private message View user's profile Send e-mail Visit poster's website
    Reply with quote  

Mon Sep 04, 2006 2:26 am » Post: #7 » Download Post

Hey Fontyyy, thanks for the pic Very Happy That was actually an F3 motor that I'd thrown together the weekend before the race and was hand carried down. The rest of the bike was a bit of a dog, but didn't go too bad. Definitely annoyed the other blokes, which was why we did it.

I've ridden/raced 250's and 400's of all specs. I still hold the 250cc SP lap records at both the main circuits in Thailand (because they don't run the class any more Wink ), but I could only get within a second of my 250 time on an SP/F3 ZXR400SP. It was fast without a doubt (75hp on the brake), but you just couldn't throw it around like the NSR. One major difference is that a lot of people can ride a 400 fast, but a 250 ain't as easy. The 400 is more stable and you can sometimes get away with being a gear wrong in the turn, or a tooth out down the straight, both of which are unforgivable on a rip-snorting 250.
Back to top


NSR-LOVER

 
Posts: 223
Joined: 19 Jun 2006

Location: Greece
    Send private message View user's profile Send e-mail
    Reply with quote  

Tue Sep 05, 2006 8:34 pm » Post: #8 » Download Post

So if 400's are stock lets say 60hp and we are spliced,holes,jetted 60hp we have the weight advance of nearly 30kilos! I believe that with same drivers and same gearing the nsr will be on the front. i am talking always for a straight! we'll see....
Back to top


Clarkie

 
Posts: 314
Joined: 22 Jan 2004

Location: Wiltshire UK
    Send private message View user's profile Send e-mail
    Reply with quote  

Tue Sep 05, 2006 9:21 pm » Post: #9 » Download Post

Coff..surely time..coff... to lock this...coff-splutter..DIESEL conversation?!! Shocked
_________________
Image Hosted by ImageShack.us
Back to top


Andy
Site Admin
 
Posts: 11948
Joined: 19 Jan 2004

Location: Devon, UK
1991 Honda NSR250 MC21
    Send private message View user's profile
    Reply with quote  

Tue Sep 05, 2006 9:31 pm » Post: #10 » Download Post

Yeah, it's boring the tits off me!
_________________
Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.


Check us out on Facebook! Please "like" our page!
Back to top


NSR-LOVER

 
Posts: 223
Joined: 19 Jun 2006

Location: Greece
    Send private message View user's profile Send e-mail
    Reply with quote  

Tue Sep 05, 2006 10:24 pm » Post: #11 » Download Post

Sometimes i dont understand a damn thing of what you say... Evil or Very Mad
it may be because when we had english class i was sitting near the window
and was waiting NSR's to pass...who cares about listening?i only wanted to hear this honda pipe screaming... Wink
Back to top


fenton
Supporter - Titanium
Supporter - Titanium
 
Posts: 1166
Joined: 13 Oct 2005

Location: not here
1990 Honda NSR250 MC21
    Send private message View user's profile
    Reply with quote  

Tue Sep 05, 2006 10:39 pm » Post: #12 » Download Post

ive had enough of this 400 4 stroke crap who cares if a 400 diesel has a bit more grunt than our (stock)nsr,s ive never riden a 4 stroke and hope never to waste my time doing so Exclamation
Back to top


Andy
Site Admin
 
Posts: 11948
Joined: 19 Jan 2004

Location: Devon, UK
1991 Honda NSR250 MC21
    Send private message View user's profile
    Reply with quote  

Tue Sep 05, 2006 10:46 pm » Post: #13 » Download Post

It's nothing personal "NSR-LOVER", it's just that bore-stroke topics aren't suffered well here.

I think you have your answer, and this thread is now concluded before it gets ugly!

Smile
_________________
Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.


Check us out on Facebook! Please "like" our page!
Back to top


This topic is locked: you cannot edit posts or make replies.   printer-friendly view
Page 1 of 1   Download Topic

NSR250R Discussion

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum

  • NSR250 Forums Index
  • All times are GMT
Powered by phpBB © 2001, 2005 phpBB Group


Hosted by NSR250dotNET © 2008 NSR250dotNET