PDA

View Full Version : What classes would i be able to race this in?



Cajun
18th January 2005, 07:39
I am possibly looking at getting a cheap bike to get in to racing i can get hold of one of these what sorta classes could i get in to with it

http://www.motorbikes.be/en/Honda/1985/NS%20400%20R/

ns400r 2 stroke v3 with 72hp

ajturbo
18th January 2005, 07:51
I am possibly looking at getting a cheap bike to get in to racing i can get hold of one of these what sorta classes could i get in to with it

http://www.motorbikes.be/en/Honda/1985/NS%20400%20R/

ns400r 2 stroke v3 with 72hp

looks too heavy.... :whistle:
but i don't know anything :devil2:

k14
18th January 2005, 11:49
Umm, probably eligible for F2, but that is the same class as 250 gp bikes, 600 4's and 750 twins. Probably not very competitive for the class. Being an 85 it might be eligible for a period class but I'm not too sure.

Blackbird
18th January 2005, 12:01
I'd be inclined to steer clear. It was one of Honda's very rare disasters and used to overheat and stuff pistons on a regular basis on the road, let alone the extra stresses through racing.

It would be cheaper to race a GSX-R 1000 on repair bills alone :yes:

Not with a 10ft bargepole....

bloodnut
18th January 2005, 13:45
I'd be inclined to steer clear. It was one of Honda's very rare disasters and used to overheat and stuff pistons on a regular basis on the road, let alone the extra stresses through racing.

It would be cheaper to race a GSX-R 1000 on repair bills alone :yes:

Not with a 10ft bargepole....


Sorry pal you couldn't be more wrong.

The only reliability issues this model had was a 2nd gear which jumped occasionally, this was fixed by a new 2nd gear fork and modified drum.

Overheating can be an issue on a 35 degree day however this is easily fixed by a larger rad if you intend to race.

These are in fact excellent motorcycles which were let down by some production compromises, no doubt by Hondas accountants. :angry2:

This engine is a single crank 90 degree V3 running a six speed box, and using a big bang firing order, 5 years b4 Honda and then everybody else, went to for the 500 gp class. It has its carbs in a bank between the cylinders just like the real thing. It also has an unusual crank and gearbox layout which makes the engine very short, shorter than and RGV engine for example;

See :scooter:

http://img.villagephotos.com/p/2004-9/822283/rhs2005.JPG

It has a layout that is similar to the last line of GP bikes b4 the diesels took over. None of the other GP replicas even come close.

When the NS400 was released it completely raised the standard of handling for a production bike, and if it hadn't been for the pipes being made to short (for ground clearance reasons - which stole the top 1000 revs and about 10 hp at the back wheel) it would have been far more heralded.

You can race them in F2 (but not competitive standard, however see below) and the new modern classics class.

My one I’m building is for fun days. I am extensively modifying the engine and chassis, see here for more details;

http://www.ns400r.co.uk/forum/viewtopic.php?t=853

and here for the conversion to the RGV chassis;

http://www.ns400r.co.uk/forum/viewtopic.php?t=1659


cheers
Jared :Punk:


http://img.villagephotos.com/p/2004-9/822283/fullfairingsrhs.JPG

Blackbird
18th January 2005, 13:56
I stand corrected by your personal experience but have read some horror stories in bike mags, plus know of one personally by a friend who owned one.

Must say that your rebuild looks superb.

bloodnut
18th January 2005, 22:14
I stand corrected by your personal experience but have read some horror stories in bike mags, plus know of one personally by a friend who owned one.

Must say that your rebuild looks superb.


Cheers, :blah:

I guess like any bike you get good and bad ones, plus the oil quality and maintenance :whocares: has an effect not to mention the various riders "warm-up technique's". :whistle:

Also the atac's could play up and dont work very well anyway - just a sales gimmick to try and keep up with Yamaha's copyrighted power valve. I'm throwing them away, with the 90 degree layout and big bang firing order this baby will hoover out of corners anyway. :killingme

Every bike mag I read from the time praised the NS, if you go to the ns400 website there is scans of alot of these articles including the rg500 and rz500. :blink:

You can achieve easily 65 rwHP and up to 120rwHP in big-bore form, with an engine that weighs less than 40 kilos! :devil2:

cheers
Jared

What?
19th January 2005, 05:43
On the other hand, the MVX250 two stroke V3... :thud:

gav
21st January 2005, 22:00
Great bike, I had one. The only thing that standard that lets them down, is very narrow rim sizes. As for racing, clubmens would be your best bet.
Oh, and they are very thirsty.
Bloodnut, was intrigued by your bike listing of 2004 NSR400, looks very cool.
The RWB bike is the RS500 that Ricahrd Scott raced in Wanganui 1986.

Cleve
22nd January 2005, 08:03
Beautiful job Bloodnut! Like that NSR250 GP bike look to it...

bloodnut
22nd January 2005, 10:08
Beautiful job Bloodnut! Like that NSR250 GP bike look to it...

Cheers

Also Motogp thanks for the shots. :wavey:

Its Tyga bodywork, available through Gary @ GP trading in Tauranga.

This particular set is GP500, they got a damaged fairing out of the rubbish bin after the 2001 GP (Haslam crashed on a v4). It has been modified to fit and bolt up to an mc21 NSR250.

I always though the last of the NSR500's were sex on wheels, especially Rossis "Nastro Azzuro' bike. :bleh:

Rossi quoted in an interview the other day that the NSR500 is still "the best" nothing matches the two-stroke.

cheers
Jared

http://www.dreamgate.ne.jp/nsr/pics/rossi500.html


http://www.dreamgate.ne.jp/nsr/pics/rossibike04.jpg