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-   -   higher compression - how would it affect A/F? (http://forums.sv650.org/showthread.php?t=163045)

barwel1992 21-02-11 10:45 PM

higher compression - how would it affect A/F?
 
how would higher compression effect air fuel mix ?

after doing pistons and gasket mod i think im running rich

could just be me though ps air filter is clean and tb boots are fitted correctly v-stacks fitted and the same zorst as before only thing diff is pistons and thinner gasket

thanks

yorkie_chris 21-02-11 10:48 PM

Re: higher compresion how would it effect A/f?
 
It should not affect it

barwel1992 21-02-11 10:52 PM

Re: higher compresion how would it effect A/f?
 
ok cool, fuel economy is better than before just smells like fuel, will pull plugs at some point

ps running 99super

squirrel_hunter 21-02-11 10:53 PM

Re: higher compresion how would it effect A/f?
 
What did you do Velocity Stack wise?

barwel1992 21-02-11 10:59 PM

Re: higher compresion how would it effect A/f?
 
what do you mean ? i had them in before, running factory pro 70/35 midrange stacks

http://i357.photobucket.com/albums/o...0012011686.jpg

yorkie_chris 21-02-11 11:00 PM

Re: higher compresion how would it effect A/f?
 
Could be something else random like the temp sensor keeping it on enrichment, also super is a bit denser which could affect it.

barwel1992 21-02-11 11:05 PM

Re: higher compresion how would it effect A/f?
 
Quote:

Originally Posted by yorkie_chris (Post 2487670)
Could be something else random like the temp sensor keeping it on enrichment, also super is a bit denser which could affect it.

yeh head that the MAF (map?) (i think its called) goes as well ???

yorkie_chris 21-02-11 11:09 PM

Re: higher compresion how would it effect A/f?
 
Well, MAF is mass air flow, I don't think SV uses one. MAP is manifold air pressure which it does use.

barwel1992 21-02-11 11:10 PM

Re: higher compresion how would it effect A/f?
 
Quote:

Originally Posted by yorkie_chris (Post 2487687)
Well, MAF is mass air flow, I don't think SV uses one. MAP is manifold air pressure which it does use.

must be the map then :p

will look in to it and see if i can test them some how

yorkie_chris 21-02-11 11:11 PM

Re: higher compresion how would it effect A/f?
 
Well you have a few things on the go, could also be something daft like TPS needs doing. Or nothing at all and you got a whiff of petrol left over from cold start that just vaporised.

If it feels to run alright then pop it on a dyno and run it up, see what you get.


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