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revhard manifold... should i slice the head flange?

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Old 01-05-2006, 05:20 AM
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Default revhard manifold... should i slice the head flange?

whats up...

so i nothiced that alot on revhard manifolds tend to crack at the "collector" between runner 2 and 3.

will it help if i will cut the head flange to avoid some expention??

if you cant understend me here is a pic:




thx
Old 01-05-2006, 07:07 AM
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Default Re: revhard manifold... should i slice the head flange? (RACEPAK)

no one?
Old 01-05-2006, 07:48 AM
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Default Re: revhard manifold... should i slice the head flange? (RACEPAK)

i guess it would help a little if u cut the flange, but if the flange is losing shape, wouldnt this mean that theres more stress put onto the manifold runners? this would cause it to crack on the runner?
Old 01-05-2006, 08:01 AM
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Default Re: revhard manifold... should i slice the head flange? (RudeLude)

full race cuts their flanges as well to keep cracking down.
Old 01-05-2006, 09:46 AM
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Default Re: revhard manifold... should i slice the head flange? (RACEPAK)

Is the flange MILD steel? if so, you will do just fine leaving it.

If its Stainless steel, then It wont hurt to slice those like pictured above. Since SS do have high expansion rate.
Old 01-05-2006, 12:59 PM
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Default Re: revhard manifold... should i slice the head flange? (synik)

it is a cast manifold.
Old 01-05-2006, 01:05 PM
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Default Re: revhard manifold... should i slice the head flange? (RACEPAK)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RACEPAK &raquo;</TD></TR><TR><TD CLASS="quote">it is a cast manifold.</TD></TR></TABLE>

Slicing it won't do a damn thing.

Old 01-05-2006, 01:29 PM
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Default Re: revhard manifold... should i slice the head flange? (RACEPAK)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RACEPAK &raquo;</TD></TR><TR><TD CLASS="quote">it is a cast manifold.</TD></TR></TABLE>

I had the same manifold on my prelude... It's actually a short tubular manifold not cast that cracked in 3 places after 3 months of use.
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