2 into 1

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sonofpat1969
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2 into 1

Post by sonofpat1969 »

This is more the bored mind of a man "on the sick" than a plan or ambition, but I was wondering whether anyone here had tried putting a 2 into 1 exhaust on the storm, ( I know its been done on the track storm featured in a magazine last year)....

And if they had, what difference good or bad it made. I have tried a quick search of the forum but drawn a blank so far.
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simo
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Re: 2 into 1

Post by simo »

They reckon to blank one off....easy as that. Probably means it's not going to get rid of the gasses as easy so will problaby be slower.
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Wicky
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Re: 2 into 1

Post by Wicky »

It has been done a few times - mainly for cosmetic reasons rather than for performance gains

http://www.google.co.uk/#hl=en&newwindo ... 88&bih=929
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seb421
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Re: 2 into 1

Post by seb421 »

yeah seen it done, I do think the storm looks better with two tho!

friend raced one with a single a few years ago, made a bit more low down at the expense of top end power and it was loud, very loud!
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tony.mon
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Re: 2 into 1

Post by tony.mon »

Be aware if you're going to blank one off that the exit from the collector under the RH footrest has a restrictor as standard, this will definitely have to be cut out before you can use a single can on the RH side.
Just using the LH side one is ok, though.
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sonofpat1969
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Re: 2 into 1

Post by sonofpat1969 »

Thanks for replies... interesting... If I do give it a go, I will be sure to post my experiences...

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Snoogle
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Re: 2 into 1

Post by Snoogle »

My bike must be a freak of nature, exhaust manifold cut before it splits back into 2 pipes and a link pipe made up to accept a stubby can on the right hand side. Performance figures of 104hp...go figure 8)
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sonofpat1969
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Re: 2 into 1

Post by sonofpat1969 »

Snoogle wrote:My bike must be a freak of nature, exhaust manifold cut before it splits back into 2 pipes and a link pipe made up to accept a stubby can on the right hand side. Performance figures of 104hp...go figure 8)
What size inlet into can, is it enlarged, 60mm?
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Snoogle
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Re: 2 into 1

Post by Snoogle »

Nope, standard aftermarket bore sizes 51mm iirc
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tony.mon
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Re: 2 into 1

Post by tony.mon »

Get a piccy up, would you?
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Snoogle
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Re: 2 into 1

Post by Snoogle »

Image

Only pic I've got.
Will get some more, but, as my bike is in bits and I'm half way through modding another slip on I can't really show you anything else lol :(
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tony.mon
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Re: 2 into 1

Post by tony.mon »

Well, can't tell much from there, maybe if you could do one without the bellypan it would show the routing, but sounds interesting, for sure.
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Snoogle
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Re: 2 into 1

Post by Snoogle »

There's not much to show tbh. Where the headers go into 1 pipe and before they go into 2 again its cut and the link pipe joins there before extending to the slip on :thumbup:
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mik_str
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Re: 2 into 1

Post by mik_str »

Image

Here is what my 2-1 experiment looked like (link pipe and can were from a 98 R1; only mod needed was to cut the pipe and rotate it a bit and re-fit with a sleeve to match up the two pieces). The link was fit onto the header a short just before it splits into 2 again. As for results (dyno tested): slightly stronger low-end, slightly less overall torque, practically same top-end power. Bike ran fairly well other than a decent sized dip in the torque curve between 4800-6500 rpm.
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sonofpat1969
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Re: 2 into 1

Post by sonofpat1969 »

Definitely interesting.... I guess Theres obviously some weight loss as well.... I will add it to my every growing possible future project list
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