929 cams in a 919? - Wrist Twisters
 
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post #1 of 15 Old 06-16-2008, 01:17 PM Thread Starter
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929 cams in a 919?

a guy is selling the head off a 00 929 for $50 wondering if anything from it could be put onto the 919 motor for a little extra power?

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post #2 of 15 Old 06-16-2008, 03:23 PM
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At first I thought the cams could be made to work, but the sensor rotor on the 929 is on the exhaust cam, while on the 919 it's on the intake cam -- so unless you're very creative they won't work. According to the fiche the valve shims are the same, but that's about it.
Of course you could swap the whole thing, but then you would need larger throttle bodies, a freer flowing exhaust, a different ignition advance curve, probably different fuel delivery map, a higher rev limiter setting, and ... and ... and ...
Or you could just shrug and file it away with all the rest of the "great ideas" that are too much trouble.
Let us know which you decide to do.

Rob

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On the other hand, if it has not been done never assume it is impossible to do it.
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post #3 of 15 Old 06-17-2008, 03:37 AM
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post #4 of 15 Old 06-17-2008, 03:45 AM
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Also I was reading a post on a fireblade only site. This one cat had a 98 CBR900 and wanted to put a 954 in it and this other guy said "a 954 wont bolt up but a 1000 would". I personally have no idea if this is true and doubt it personally.

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post #5 of 15 Old 06-17-2008, 04:05 AM
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Hell ya! 160 HP at the rear wheel, thats what I'm talking about. That would be a heck of a ride!

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post #6 of 15 Old 06-17-2008, 07:37 AM
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Quote:
Originally Posted by riquefied919 View Post
I posted that link when I first joined this forum and was looking for performance options. Pretty neat, huh?
That guy has way more money than you (and me) though. haha

Quote:
Originally Posted by riquefied919 View Post
Also I was reading a post on a fireblade only site. This one cat had a 98 CBR900 and wanted to put a 954 in it and this other guy said "a 954 wont bolt up but a 1000 would". I personally have no idea if this is true and doubt it personally.
the 929/954 engines have swingarm mounts on the back. the 919 swingarm mounts to the frame. Anything can be done if you are an excellent fabricator or have a fat wallet. or both.

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post #7 of 15 Old 06-17-2008, 09:27 AM
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Quote:
Originally Posted by riquefied919 View Post

So does that mean everyone saying the backbone frame won't handle much more than 100Hp is wrong? Although 160 seems a little absurd for street applications, I would be happy with another 20 or so.

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post #8 of 15 Old 06-17-2008, 03:27 PM
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Not only did it seem to handle the power it seemed to be fast on the track.

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post #9 of 15 Old 06-17-2008, 03:28 PM
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You could also ask bucky he's got a 9er with a wet kit at around 160 mark I'm sure.

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post #10 of 15 Old 06-17-2008, 04:01 PM
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hello and welcome to 6 years ago

the fisher honda from down under is not "fast", in fact the quoted laptimes aren't all that

it is a 929 graft, sort of...take a close look at winzer's work for fisher

the cam stuff has been covered time and time again...try doing a search on this forum

the fireblade forum reference is crap

there's a difference between chasis flex and structural failure...and it's the swingarm that twists not the backbone

as for welding your own sensor, it's been done w/ mixed results

seriously, search is your friend

and if you dig the fisher bike, check out Alexa's ride ...these links have all ben on the project site for many years...oh wait, what happened to the site ?!?!?!?

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post #11 of 15 Old 06-17-2008, 04:56 PM
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sadly, i am living proof of the notion that at some point in your horsepower quest, you come to the realization that you are working on the wrong bike.

though, if i'd been more cautious my bike would still be healthy. ie, this "pissing up a rope" exercise that i've undertaken is currently at a crossroads due to my foolishness in operation, not in design or execution of the mods i've performed.

ie:
"how fast can i go?"

the only answer remains

"how much do you want to spend"

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post #12 of 15 Old 06-18-2008, 04:33 AM
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Erion makes two different cams high and low compression cams if a piston change is in your future. You could also find regrinds but, thats not my cup-o-joe. One could get the 40mm trottle bodies off a 929 (herd they fit not sure)or have yours reworked for good cfm get Erion cams low comp. a 25 hp dry nitrous kit a PCIII and good exhaust system. Oh yes 15/45 sproket combo and your front tire will never wear out again.

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post #13 of 15 Old 06-18-2008, 04:39 AM
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Now before you start a good amount of disposible income would be required. I bought my lottery ticket already.

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post #14 of 15 Old 06-18-2008, 05:29 AM
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It seems to me that my 919 runs damned good as it came from the factory, and I'm happy with that. If I wanted another 20-30 horses I would have just bought a bike like a speed triple. Probably cheaper in the long run and as far as durability goes, by keeping the internals as they came, I'm sure they should provide many years of ripping enjoyment.
Of course, do as you please and have fun, that's what it's all about!

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post #15 of 15 Old 06-18-2008, 05:54 AM
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I don't think the 919 swing arm could with stand 160 H.P....

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