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Main : Misc : Forum custom manifold2

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custom manifold2
custom manifold2Popular
Submitterdatto12qldMore Photos from datto12qld   Last Update2009/1/17 5:47    Tell a friendTell a friend
Hits3223  Comments5    0.00 (0 votes)0.00 (0 votes)
My custom manifold for Dellorto 45

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The comments are owned by the poster. We aren't responsible for their content.

Poster Thread
beattie
Posted: 2009/1/17 6:00  Updated: 2009/1/17 6:00
No life (a.k.a. DattoMaster)
Joined: 2005/10/16
From: Perth WA
Posts: 2134
 Re: custom manifold2
Wouldnt that make it a bit hard to tune with the different length runners? How come you made a custom manifold in the first place and not use a off the shelf item?

Points for being original though

Poster Thread
revhead001
Posted: 2009/1/17 6:10  Updated: 2009/1/17 6:10
No life (a.k.a. DattoMaster)
Joined: 2008/3/15
From: Melbourne
Posts: 2742
 Re: custom manifold2
That would be because it is for an oval port head and a single dcoe. Canon manifolds are just too hard to get.

Beattie your right though. It really needs to have the same length runners to get it running right. The long runners would make it like tunnel rams up high. Thumbs up

Poster Thread
ROConnor
Posted: 2009/1/17 7:54  Updated: 2009/1/17 7:54
No life (a.k.a. DattoMaster)
Joined: 2008/2/17
From: Melbourne, Oz
Posts: 2029
 Re: custom manifold2
I'm sure I'v sean an old factory racing or nissmo one or something that had two on an angle!?

Wouldent the leng beffor the carb be the more importent one as far as tuneing is concernd?

Poster Thread
ddgonzal
Posted: 2009/1/17 7:57  Updated: 2009/1/17 7:57
Moderator
Joined: 2001/5/3
From: 48 North
Posts: 31575
 Re: custom manifold2
I think it'll run just fine with unequal length runners -- certainly manifolds with plenums have no problem. Of course again it is 'best' to have equal lengths.

That reminds me...one bore feeding two cylinders changes the sizing of the carburetor considerably...what is the effect on that now let me think