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| FAST-XR |
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was looking at the cast intake manifold off an el, it looked like there was a fair amount of excess steel sitting in the chamber (a main cross member plus a couple of other areas), im not sure if its there to maintain some sort of air flow or not, but if the manifold was to be cut and most of this steel removed from inside it, leaving one big hollow chamber, this would increase the capacity for air within it, would this be worthwhile or not? anyone tried it?
_________________ 07 BF MKII XR6T |
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| SileNceR |
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why not just put a box plenum on top like others have?
much less stuffing around |
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| Steady ED |
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That 'excess steel' is to create the dual runner lengths the BBM has.
It switches from long runners (for good low down torque) to short runners (for top end power).
_________________ ED XR8 Sprint - S-Trim, V500, 249rwkw |
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| twr7cx |
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SileNceR wrote: why not just put a box plenum on top like others have?
much less stuffing around On top? Like remove the top half of the BBM and fit an aftermaket one? I would of thought in NA application the duel runner system on the BBM would be better than a plenum chamber set up. |
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| glenneaux |
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the only time i've seen the plenum idea done was with a forced induction.. ie pyroay has had a plenum top half made up and rmyers has taken out the BBM butterflies and opened up the chamber completely but again this isnt NA..
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| twr7cx |
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What Rymers has done, didn't Ford do the similar thing on the XR6T's? A BBM with no butterflies.
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| Andrew J |
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svo_xr6 also removed the top of the plenum and put on twin throttle bodies?
_________________ The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?
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| vibr8n |
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you might be hard pressed finding steel in the cast aluminium manifold.. unless your going to decrease the size of the steel in the butterflies.... or the gasket...
_________________ crow cam,cai,exaust,bbm,190 reg & el injectors,xr6 interior,guages,white cluster,pioneer/mtx stereo,big boot install w.i.p, 17"rims,koni/pedders shocks&springs with nolathane re-bush,ssv kit,stainless inserts,clear lights,t5 & short shifter,chardonay/pearl paint |
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