Derestricting a 400...

[Morcs]

Is there anyone in west auckland who can do this for me (the dismantle speedo and bend brass pin thing), I cant be arsed doing it myself and will pay...

And and anyone who knows of someone who will rejet it on the cheap, as my neew exhaust will fuck my valves after a while...

Cheers :D

[megageoff76]

When I had an CBR400 NC29 i derestricted it with a "little black box" which plugged into something behind the speedo, and that removed the speed limiter. That might be better than taking the speedo to bits?

Maybe this one would fit an NC35?

http://www.trademe.co.nz/Browse/Listing.aspx?id=103456722

[avgas]

Yep i second the black box - made my zxr a whole lot better.
As for jetting - you can do it yourself if your skilled enough (im not) from recall the needles were only $20 each.
Also dont forget to smooth out the inlets on the carbs with a good sand/polish/buff.

[Morcs]

When I had an CBR400 NC29 i derestricted it with a "little black box" which plugged into something behind the speedo, and that removed the speed limiter. That might be better than taking the speedo to bits?

Maybe this one would fit an NC35?

http://www.trademe.co.nz/Browse/Listing.aspx?id=103456722


Yep i second the black box - made my zxr a whole lot better.
As for jetting - you can do it yourself if your skilled enough (im not) from recall the needles were only $20 each.
Also dont forget to smooth out the inlets on the carbs with a good sand/polish/buff.

Im not paying $100 for an M-Max, I cant buy off that guy anyway, he blacklisted me after I simply asked the question why id spend that money when its far cheaper to do it the other way... hence the rant in his ad lol.
edit: hes taken the rant off his listing... it was a huge paragraph in caps lol.

[FROSTY]

Morcs--SAVE yaself a power of shit. Send ya bike to GP motorcycles and let em sort it for ya. Your bike will come back getting full HP in ALL gears and will get to full speed as well. It will be Jetted right
Itll cost ya about $500.00

[Morcs]

Morcs--SAVE yaself a power of shit. Send ya bike to GP motorcycles and let em sort it for ya. Your bike will come back getting full HP in ALL gears and will get to full speed as well. It will be Jetted right
Itll cost ya about $500.00

Cheers Tony,

but

$500? :shit:

Is it seriously worth it?

[FROSTY]

Tell ya what dude worth is such a weird word. In my opinion SHIT YEA
Ask QUAZI about the difference they made to his bike

[avgas]

Cheers Tony,

but

$500? :shit:

Is it seriously worth it?
Cheaper than the said $3K for the SP engines.....aye frosty ;)

[Morcs]

Or instead of missioning all the way down to the BOP, i can throw it on Hendersons dyno for $135, plus labout at $67ph after that...

[FROSTY]

Dude ya asked he question I gave ya the answer.
Don;t get me wrong the guys at HMCC are fucken top blokes and know their stuff.
BUT--GP motorcycles know YOUR bike -or should I say they have built and worked on a large number of F3 bikes and specifically the now ex owner raced VFR400's both in NZ and in the UK so they have a fair few clues about tuning and derestricting YOUR bike.
Now if ya had a gixxer 600 etc my suggestion would be different

[Morcs]

Appreciated tony. Will look at it later in the year.

In the meantime, does anyone know if an nc30 m-max box will go on an nc35?

Cheers

[montsta56]

Morcs--SAVE yaself a power of shit. Send ya bike to GP motorcycles and let em sort it for ya. Your bike will come back getting full HP in ALL gears and will get to full speed as well. It will be Jetted right
Itll cost ya about $500.00

Frosty's Sooo right just got my NC30 back from Rob at Gp at he found another 6HP for me SWeeeeet:yes:

[montsta56]

An it only cost me like $300 or so:scooter:

[Morcs]

Frosty's Sooo right just got my NC30 back from Rob at Gp at he found another 6HP for me SWeeeeet:yes:

Nice :D

Your just down the road from them though...

Tis a bit difficult for me, only form of transport, and im 2 1/2 hours away... :(

[limbimtimwim]

Get the carb kit: http://factorypro.com/Prod_Pages/prodh24.html
And find the HRC CDI.

What's more fun? Paying someone else or getting your hands dirty?

[mark247]

Frosty's Sooo right just got my NC30 back from Rob at Gp at he found another 6HP for me SWeeeeet:yes:

What did he do to find another 6hp?

[Morcs]

Get the carb kit: http://factorypro.com/Prod_Pages/prodh24.html
And find the HRC CDI.

What's more fun? Paying someone else or getting your hands dirty?

I had HRC Cdi... Except i withdraw my bid on ebay...which im regretting - $300 for a new (still sealed in its packet) cdi... :doh:

I know a guy who has 1 in each of his race bikes which he will be dismantling soon... so am hoping to snap one up soon.

The HRC carbs, dont they still need setting up? so still go to pay to throw the bike on a dyno.

[limbimtimwim]

The HRC carbs, dont they still need setting up? so still go to pay to throw the bike on a dyno.That isn't the HRC carb kit. The HRC carb kit requires air filter removal and airbox mods so stuff that for a road bike. The factorypro kit I would imagine is aimed at those who have removed the stock muffler and now need to compensate further upstream.

Yes, to make it work at it best it need a visit to a dyno and some experienced hands to do it properly.

You can however just follow factorypro's suggested starting point for setup and go from there. Of course it won't be as good, but you'll know your bike better.

[montsta56]

Get the carb kit: http://factorypro.com/Prod_Pages/prodh24.html
And find the HRC CDI.

What's more fun? Paying someone else or getting your hands dirty?

Whats most fun is having your bike running perfectly....

[montsta56]

What did he do to find another 6hp?

From what I understand it 's a bit of a " Black Art" but mainly tunning the Carb's. My torque curve is heaps flatter as well, May be I'll scan the Dyno Sheet an post that???.

[FROSTY]

MORcs--trust me dude its worth the trouble.
They found similar HP from my zxr race bike by carb tuning and a heapof other stuff they did.

[mark247]

From what I understand it 's a bit of a " Black Art" but mainly tunning the Carb's. My torque curve is heaps flatter as well, May be I'll scan the Dyno Sheet an post that???.

If you can, scan it and send it to me. I want to compare it to Toms VFR400 which he got dyno tuned and rejetted at the same place.

That could be interesting, i cant wait to hear all the excuses from Tom if it turns out yours has more hp.

Haha.

[moT]

If you can, scan it and send it to me. I want to compare it to Toms VFR400 which he got dyno tuned and rejetted at the same place.

That could be interesting, i cant wait to hear all the excuses from Tom if it turns out yours has more hp.

Haha.

its very hard to get 6 hp out of it just by rejetting even with an exhaust and air box he mannaged to get 4hp out of mid range 1hp top end looking at my dyno sheet.. but top end hp should be about 60hpmax.. it takes a fuck load of work to get a fvr to even have 65hp.. if someone with a vfr who just has a loud exhaust and claimes to have it at 70hp hes bullshitting.

[Sketchy_Racer]

If you want power, you're going to have to pay.

There are no such things as cheap power.

It amazes me as to how many knuckle heads Think that they can just plug things in, or bolt them up, and it'll be all good..

The japs desined those motors as a sports bike motor, if you want to get more HP without the sacrifice of reliability, or ridability, Its going to cost.

Either put up with what you have, or spend the friggen money!

[montsta56]

its very hard to get 6 hp out of it just by rejetting even with an exhaust and air box he mannaged to get 4hp out of mid range 1hp top end looking at my dyno sheet.. but top end hp should be about 60hpmax.. it takes a fuck load of work to get a fvr to even have 65hp.. if someone with a vfr who just has a loud exhaust and claimes to have it at 70hp hes bullshitting.

Quite Right Tom mine is making just over 60hp an 27 ft-lb's, But before I took it in to Rob at GP it was only making 53.64Hp an 24.92ft-lb, so once he got the bike running perfectly I gained my 6hp

[mark247]

Quite Right Tom mine is making just over 60hp an 27 ft-lb's, But before I took it in to Rob at GP it was only making 53.64Hp an 24.92ft-lb, so once he got the bike running perfectly I gained my 6hp

Thats pretty good. But i think it must of need a good tune because if it was pulling only 53hp it obviously had the carbies a little out of balance or something.

[Morcs]

I pulled the speedo apart last week, found this brass pin thingy and bent it right back onto itself.

Tested it out last night (private road of course) and twas a success :D

[more_fasterer]

Did the same last night, just flexed the section of disc that goes between the inductors of the cut-out until it fatigued & broke off. Didn't break anything either!