coyoteboy
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| posted on 24/10/11 at 11:05 PM |
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Emissions on modern V's, difficult?
Havng recently got a bargain on a nice big modern V I'm wondering how hard it will be to pass the OEM emissions test with a squirt and some
universal cats - has anyone any experience?
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matt_gsxr
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| posted on 24/10/11 at 11:46 PM |
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more details perhaps?
V as in V5 (Volkswagen)
V as in Roman numeral 5 cylinder Volvo/Fiat/Ford engine
V as in V6
V as in V2 bike engine
V as in V4 bike engine
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coyoteboy
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| posted on 24/10/11 at 11:51 PM |
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 fair point. Was thinking V8's, primarily Audi's 4.2, but similar engines would count.
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matt_gsxr
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| posted on 25/10/11 at 01:08 AM |
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Damn, didn't think of v8 or v10
Why are you worried.
The manufacturers manage it without any problems, just copy them and use a cat etc.
I'd worry more about v twin bikes where the emission rules are a bit lazy.
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coyoteboy
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| posted on 25/10/11 at 01:16 AM |
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Worried as I am trying to identify how much I can "get away with". I'm trying to see what sizes of cats are available (meow!) and
how effective they are. I've seen a few posts on here where people have used multiple cats in series I think, which would get costly with a big
V8, and I'm trying to minimise packaging problems. Just trying to get a handle on what I need I guess, save me having to do it twice.
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adithorp
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| posted on 25/10/11 at 08:06 AM |
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Maybe I'm confused here but, your first post says you've just GOT a big V and your second says you're THINKING about an Audi V8....
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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jossey
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| posted on 25/10/11 at 11:58 AM |
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V12?
Thanks
David Johnson
Building my tiger avon slowly but surely.
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scootz
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| posted on 25/10/11 at 12:32 PM |
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You'll have to (further) excuse my ignorance, but why would a 'V' engine have a different emissions output from that of an inline
engine with the same number of cylinders?
It's Evolution Baby!
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coyoteboy
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| posted on 25/10/11 at 04:12 PM |
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quote:
Maybe I'm confused here but, your first post says you've just GOT a big V and your second says you're THINKING about an Audi
V8....
Jesus - talk about taking things literally 
I've GOT a V8 (ordered). I'm thinking about V8s in general and whether they're harder to get through emissions, especially large
ones, in comparison with say small highly strung 4 pot turbos. I can't think of many reasons for them to be so but I'm trying to limit my
surprises I've never worked with an engine larger than 2 litre before
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