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Home > Help Needed / General Tech Chat > plenum to carb

smudger483

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Member #: 8630
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21st Aug, 2010 at 04:44:21pm

ive searched and found out that the plenum is under pressure but when i went to join my carb to the plenum theres 2 holes for the bolts and then 2 more just above the 2 mounting holes. surely this doesnt make it air tight just wanting to know do i block these or leave them and has any one got a picture of the restrictor ring so i can see if my plenum has one or not. not that certain mine does and do you really need one


wil_h

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Betwix Harrogate and York

22nd Aug, 2010 at 09:12:28am

Not really sure what you mean. On the mounting face there are 4 holes

1 - A big one that the air goes through
2- one for the pressure feed to the float bowl
3 & 4 - mounting holes (these go through the plenum)

If you look at the rear of the plenum there are tow additional threaded holes for mounting the heat shield.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph



On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.


theoneeyedlizard

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The Boom Boom speaker Police!

Essex

22nd Aug, 2010 at 04:57:18pm

The two Heatshield mounting holes do not break into the chamber.

Edited by theoneeyedlizard on 22nd Aug, 2010.

In the 13's at last!.. Just
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