attended a dyno day at Projex in cradley heath (http://www.projex-uk.co.uk/) organised by those good folks at 400gb..
the day was spawned as a result of an nc30 getting a lowly 40-foo bhp rating on the dyno there a while back... much debate was had and to settle it all a crowd of nc30's, nc24's an nc29 and our old battleship of a ZX4 showed up on the day to see what was what .. (oh and an RC30, but that's like ... not rellevant ... nice though)
was the dyno reading low ?
was the OP's bike just toad ?
result ?
dynapro dyno .... its not toad, and its not reading low
lowest reading of the day was the OP's nc30... 44 i think ... most were mid to high 50's, highest honda 400 was an nc30 racebike @ 59.something ...
our ZX4 ? despite the fact i dropped it in the carpark (breaking the genny cover and gearlever) cos im a twat, and spent the next few hours making full use of the facilities to effect a repair (bodge) it screamed its way to a peak of 61.9bhp @ 13100rpm... not spectacular i'll admit, but considering that its done 60,000+ miles, and is stock except for an end can and zxr carbs.. Im happy ( thats still nearly 3bhp up on a tuned NC30 !!! )
400cc dyno day
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zimm
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RedexRobB
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zimm
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Jamz
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Re: 400cc dyno day
Nice one! more proof of which the best 400 is! 
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RedexRobB
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rene
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Re: 400cc dyno day
how sour faced were the honda fan boys after that? Bet they would refuse to admit it, go on to say that the head gasket has gone and the cam chain was about to snap.
Oh and the panels dont fall off randomly
Oh and the panels dont fall off randomly
ZXR750 L1
tail tidy, polished bits, custom paint job, k&n, dynojet, Full akropovik, down geared, GSXR calipers, hel brake lines front and rear & clutch line, maxtron resprung froks 120BHP
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tail tidy, polished bits, custom paint job, k&n, dynojet, Full akropovik, down geared, GSXR calipers, hel brake lines front and rear & clutch line, maxtron resprung froks 120BHP
BikePics page-
http://www.bikepics.com/members/zxr400rene/
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zimm
- zxr400 oc member
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- Location: Herefordshire
Re: 400cc dyno day
lol, i was expecting some sour grapes, but really, everyone knows ZXR's make more power...
they fell back on the "handles better + superior build quality" argument .. build quality? yeh, fair enough.. handles better ? not stock they dont (boing boing wobble boing!)
there's easily another 3-4bhp to get out of the ZX4 anyway ... it was so rich throughout the range that the "ideal" a/f ratio line was almost off the top of the graph !
they fell back on the "handles better + superior build quality" argument .. build quality? yeh, fair enough.. handles better ? not stock they dont (boing boing wobble boing!)
there's easily another 3-4bhp to get out of the ZX4 anyway ... it was so rich throughout the range that the "ideal" a/f ratio line was almost off the top of the graph !