Steventatt builds a 220 HP CBX

Hey, what projects are you planning or preparing for? CBX, other motos, workshop, WHATEVAH!
steventatt
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Steventatt builds a 220 HP CBX

Post by steventatt »

i have a 1984 vf1000 front end on my 1981 cbx 1000 prolink model ,made some modes here and there, thicker tubes anti dive calipers air ajustable ect, good move.
dr tom has done it and so have i.

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Re: Steventatt builds a 220 HP CBX

Post by NobleHops »

Heya Steven, and welcome!

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Nils Menten
Tucson, Arizona, USA '80 CBX, sort-of restored :-)

steventatt
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Re: Steventatt builds a 220 HP CBX

Post by steventatt »

i also have fitted a cbr 1100 rear swing arm, 5.5"-17" rear wheel and now run a 190/50R17 shinko 010 rear tyre.
engine has been taken out to 1300cc with head, cam and crank work.. carbs will no longer give me as much fuel as i need.. thinking of going to fuel injection.
has any any of you guys done this and what may my best result be????
regards steve..
Last edited by steventatt on Thu Jul 24, 2014 12:26 am, edited 1 time in total.

steve murdoch icoa #5322
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Re: Steventatt builds a 220 HP CBX

Post by steve murdoch icoa #5322 »

EMS and Stefan Jung are the guys you need to talk to about fuel-injection.
http://www.cbxworld.com/features/fimartin/martin.htm

steventatt
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Re: Steventatt builds a 220 HP CBX

Post by steventatt »

have gone away from fuel injection and now have purchased a set of 33ml race carbs of tims cbx in the states,
not here yet but we will give then a go..
regards steve.. :handgestures-fingerscrossed:

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Re: Steventatt builds a 220 HP CBX

Post by steve murdoch icoa #5322 »

We will definitely need a follow-up report including pics when you get things sorted out.
Big carbs, big engine, upgraded suspension...it sounds very interesting.

steventatt
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Re: Steventatt builds a 220 HP CBX

Post by steventatt »

thanks steve,
will keep you imformed,
with all of the work being done we hope to come in some were around 200hp, or close.. lot of money and lots ot time.
parts being painted at the moment, still no exaust, maybe about a nother year away from completion.
lots and lots of go fast parts ect, and some good stop parts... wheels tyres brakes ect ect
regards steve.

steventatt
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Re: Steventatt builds a 220 HP CBX

Post by steventatt »

engine has been firerd up for the 1st time, engine and frame to reunite for the 1st time in 12months for dyno run
still has to be wired and exaust system fitted..
still a couple months to go.
cheers
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Re: Steventatt builds a 220 HP CBX

Post by NobleHops »

A+ for persistence mate. Very glad to see that you're still at it. Looks mean!

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Tucson, Arizona, USA '80 CBX, sort-of restored :-)

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Re: Steventatt builds a 220 HP CBX

Post by EMS »

steventatt wrote:i also have fitted a cb900 919 hornet rear swing arm, 5.5"-17" rear wheel and now run a 190/50R17 shinko 010 rear tyre.
engine has been taken out to 1300cc with head, cam and crank work.. carbs will no longer give me as much fuel as i need.. thinking of going to fuel injection.
has any any of you guys done this and what may my best result be????
regards steve..

How did you get to 1300cc? What size pistons did you use? 1300cc translates to basically 72mm bore when keeping the original stroke. Did you bore the cases?

steventatt
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Re: Steventatt builds a 220 HP CBX

Post by steventatt »

ist dyno run, about 182hp at the back wheel, 2nd 202hp 3rd 204.5hp @9800 rpm
still need a good exhaust and should get a few more horses...

steve murdoch icoa #5322
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Re: Steventatt builds a 220 HP CBX

Post by steve murdoch icoa #5322 »

Still looking for more after hitting 204hp? Wow!
Is this engine destined for another Martin? Street bike?
Here is the site. http://www.robinsontoolmakers.com.au/honda_cbx1000.htm

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Re: Steventatt builds a 220 HP CBX

Post by Syscrush »

steventatt wrote:ist dyno run, about 182hp at the back wheel, 2nd 202hp 3rd 204.5hp @9800 rpm
still need a good exhaust and should get a few more horses...
Seriously?

Wow. WOW.
Phil in Toronto
A cool guy deserves a cool bike, a dork needs a cool bike...
Pics of Perry, my '79.

steventatt
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Re: Steventatt builds a 220 HP CBX

Post by steventatt »

almost there 220hp at the rear end
3 1/2 years in...still some more modes to do..
but it has been worth it...
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Re: Steventatt builds a 220 HP CBX

Post by NobleHops »

Remarkable.

We're junkies for the nitty-gritty: Would you please share the outline of your mods without delving into your 'secret sauce' if you don't want to? I bet Jan would love to do an article about the project for the club magazine.

N.
Nils Menten
Tucson, Arizona, USA '80 CBX, sort-of restored :-)

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