Header size...?
10-21-2009, 07:59 PM
#1
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Header size...? hmm, feels like i've asked this before, but i couldnt find anything....
header primaries size... now, i realize most everyone here is going to say "go big or go home" so 1 7/8" seems to be the way to go the have 'room to grow.'
my car will see the track maybe 3 times a year and it needs to be a DD, chances are, it will never see above 500hp.... are 1 7/8" primaries really needed? or would i be more than fine with the 1 3/4" ? i can't justify spending so much more for the size if i'll never really need it...
header primaries size... now, i realize most everyone here is going to say "go big or go home" so 1 7/8" seems to be the way to go the have 'room to grow.'
my car will see the track maybe 3 times a year and it needs to be a DD, chances are, it will never see above 500hp.... are 1 7/8" primaries really needed? or would i be more than fine with the 1 3/4" ? i can't justify spending so much more for the size if i'll never really need it...
10-21-2009, 10:48 PM
#2
1 3/4" will do just fine. Unless your going stroker and forced induction, they will more than suffice.
Now obviously if we're talking long tubes or shorties, long tubes all the way. Make sure you either get O2 extensions or Bosch13111 (I've done both and had problems with neither one), new metal OEM gaskets and get those rear O2s tuned out so you can pass emissions by eliminating the SES light.
Now obviously if we're talking long tubes or shorties, long tubes all the way. Make sure you either get O2 extensions or Bosch13111 (I've done both and had problems with neither one), new metal OEM gaskets and get those rear O2s tuned out so you can pass emissions by eliminating the SES light.
10-22-2009, 08:28 PM
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they are race headers tho arent they? i'm looking for the ones that have emissions, EGR, AIR, O2 and whathaveyou...
forgive my ignorance, it wasn't in the acronyms.... what's HWMC?
forgive my ignorance, it wasn't in the acronyms.... what's HWMC?
10-22-2009, 08:38 PM
#7
hvmc sorry i fixed it, its a high velocity merge collector. basically it collects the gas from the primaries more effeciently. and a velocity spike in the collector, you just have to look at it to see what i mean...
anyway, only high end $800 or more headers are stainless and hvmc, but these are half that... its just a good deal, and delete emissions....
anyway, only high end $800 or more headers are stainless and hvmc, but these are half that... its just a good deal, and delete emissions....
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10-22-2009, 08:50 PM
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if you're referring to things like a merge spike, i know how that works...
is tehre anything that can go wrong that only the emissions can detect? idc about legal for the most part, just wanting to make sure everything stays safe.... what all is deleted? EGR, AIR, is it rear AND front O2's?
EDIT: jus did some searching and looking around.... so, i can still do cats and all that jazz without the AIR, EGR, and REAR O2s correct? and this will not effect anything, performance-wise, correct? is so, then i'll be jumpin on the LPPs!
is tehre anything that can go wrong that only the emissions can detect? idc about legal for the most part, just wanting to make sure everything stays safe.... what all is deleted? EGR, AIR, is it rear AND front O2's?
EDIT: jus did some searching and looking around.... so, i can still do cats and all that jazz without the AIR, EGR, and REAR O2s correct? and this will not effect anything, performance-wise, correct? is so, then i'll be jumpin on the LPPs!
Last edited by pheer; 10-22-2009 at 09:17 PM.
