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question what is the advantage of the Y peice?
Posted: Sat Aug 11, 2007 2:03 pm
by mooseman
i see a lot of talk about y bits can someone explain why they are so popular?
Y Piece
Posted: Sat Aug 11, 2007 2:59 pm
by bluemanc100
The Y Piece prevents the engine being strangled by exhaust gases that can't escape the engine
The difference on my GS was remarkable
Not tried an 1100s with a cat , but my boxer cup with y piece goes well!
can't have a y piece and K&N though without power commander or a laser chip, i have had to go back to a standard filter, engine had a flat spot and ran too lean
Anyone got a twin spark laser chip for sale????
Posted: Sat Aug 11, 2007 3:32 pm
by winger
Yes you can,i ran mine for the best part of 6 years with an open system a K+N and then a SJ filter,it's only in the last 12 months i fitted a PC,yes it's better(miles) but it ain't life and death.
lucky
Posted: Sat Aug 11, 2007 5:03 pm
by bluemanc100
sounds like you got away with it
mine was very lean on one cylider, white plugs the norm when ridden hard
its tons better with the standard air filter, i would like to try it with the laser chip , must be a hoot
Posted: Sat Aug 11, 2007 6:14 pm
by Paul
Posted: Sat Aug 11, 2007 7:17 pm
by chobbler
winger wrote:Yes you can,i ran mine for the best part of 6 years with an open system a K+N and then a SJ filter,it's only in the last 12 months i fitted a PC,yes it's better(miles) but it ain't life and death.
Didn't know the twin spark had been around for 6 years.
My 2 spark was the same before the laser chip. it was a melt down waiting to happen.
Maybe the single spark map was more generous?
Posted: Sat Aug 11, 2007 8:31 pm
by winger
My single spark has!!
Posted: Sun Aug 12, 2007 6:24 am
by SteveH
Short thread hijack (sorry Mooseman) Can anyone say what power increase can be expected from replacing the cat with a y-piece, and making no other changes? End of hijack
Posted: Sun Aug 12, 2007 8:31 am
by madman
In my experience, you won't find anymore top end power with the Y piece, but more mid range.
Posted: Sun Aug 12, 2007 1:08 pm
by nab 301
madman wrote:In my experience, you won't find anymore top end power with the Y piece, but more mid range.
Agreed having done the same, and they don't rattle.
With just the y piece mine is putting out 82 bhp (which would be lower than most)but i've no before and after dyno comparison.
Nigel B
Posted: Mon Aug 13, 2007 4:10 am
by oyster
i see a lot of talk about y bits can someone explain why they are so popular?
And it's lighter....
Posted: Wed Aug 15, 2007 2:54 pm
by Harry
and it sounds way betterer.
