dan__wright
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| posted on 5/9/08 at 12:08 PM |
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sva fail - Leighton buzzard
failed my sva yesterday, nothing too bad.
a few edges that are going to be a bit awkward but will try and wind a way around them.
biggest two problems are noise and emissions.
i got 107 at 7.5k
emissions were way out but its running very very rick (lambda 6.something!)
does anyone have a sva friendly map for a 06-07 zx10 and any suggestions for bringing the noise down abit? wire wool in the silencer?
FREE THE ROADSTER ONE…!!
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BenB
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| posted on 5/9/08 at 12:12 PM |
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Personally I would have made sure they weren't doing the test @ 7.5k (what max power RPM did you state?)....
I doubt wire wool will do much, considering the log scale of dB you need a serious reduction in noise (likely a secondary can- is there space?)..
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dan__wright
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| posted on 5/9/08 at 12:15 PM |
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10.5k max power (which it is)
i did think about a second silencer but there isnt really any room.
FREE THE ROADSTER ONE…!!
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BenB
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| posted on 5/9/08 at 12:21 PM |
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quote:
Originally posted by dan__wright
10.5k max power (which it is)
Aha! Honesty.... Schoolboy error...
Is there any way you make your tacho think it's a 5-pot not a 4-pot?? A 20% reduction in indicated RPM does wonders for dB 
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Adam
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| posted on 5/9/08 at 12:28 PM |
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i tried to tell porkies about max power on my R1 but VORSA called me to say they had looked it up and caught me out, i had to hold my hands up 
Cheers
Adam
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dan__wright
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| posted on 5/9/08 at 12:29 PM |
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i possibly could (with some trickery, using bike clocks) but it also needs an emissions test and the emissions test picks up your revs so they would
know ive pissed about with it.
FREE THE ROADSTER ONE…!!
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Johneturbo
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| posted on 5/9/08 at 12:35 PM |
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quote:
Originally posted by Adam
i tried to tell porkies about max power on my R1 but VORSA called me to say they had looked it up and caught me out, i had to hold my hands up
Cheers
Adam
Same here, i think it was paul budd that called me to say 12.500 was peak power! so had test @8.500rpm and got 97DB so nothing to worry about in the
end
Dan, your more than welcome to borrow the can i used for sva. if you pick up and return it
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dan__wright
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| posted on 5/9/08 at 12:44 PM |
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thanks, i may have to take you up on that offer, my only problem would be getting it to fit, ive got almost no space!
quote:
Originally posted by Johneturbo
quote:
Originally posted by Adam
i tried to tell porkies about max power on my R1 but VORSA called me to say they had looked it up and caught me out, i had to hold my hands up
Cheers
Adam
Same here, i think it was paul budd that called me to say 12.500 was peak power! so had test @8.500rpm and got 97DB so nothing to worry about in the
end
Dan, your more than welcome to borrow the can i used for sva. if you pick up and return it
FREE THE ROADSTER ONE…!!
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Johneturbo
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| posted on 5/9/08 at 01:01 PM |
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Ok that didn't work! here's another better pic!
would it not fit in place of your can?
 
Rescued attachment outside6.jpg
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dan__wright
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| posted on 5/9/08 at 01:22 PM |
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i don't think it would, the mnr silencer is very long, my manifold is very long and there isnt huge room for the silencer.
FREE THE ROADSTER ONE…!!
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Johneturbo
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| posted on 5/9/08 at 01:40 PM |
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ahh point taken Dan. it looked like you had a long link pipe in your avatar pic.
how did you get the cat to fit for the sva?
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dan__wright
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| posted on 5/9/08 at 04:05 PM |
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different can with a cat built into it.
FREE THE ROADSTER ONE…!!
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adithorp
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| posted on 5/9/08 at 04:34 PM |
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What were the emmision readings? 6.something doesn't sound like lambda, more like CO. Is the cat' a car one? Bike cat's aren't
big enough. Someone elses map might not help as they (emmisions) vary depending on airbox/exhaust etc. Your best having a play at a friendly garage
with the laptop and thier gas meter. Make sure the cat is up to working temp (takes a while with lots of revs). Mine was also all over the place as
the coolant temp was climbing and the fan cutting in and out, untill I over-rode the fan switch.
107db is loud! Think you need a bigger silencer. My R1 came in at 101@8250rpm...right on the limit (failed first time at 102db 'cos of a
missfire).
adrian
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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