headers !!!
17 December 2005, 09:23 PM
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headers !!!
im looking into adding headers to my scooby !!! ive been told that most of the ones for sale on ebay are ****e !! so basically i would like to know what make would be the best for bhp for ££££ . either ported oe ones , tubular items , equal length with up pipe . the advice would be greatly appreciated
17 December 2005, 09:36 PM
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I Believe the ebay headers you are referring to split because they are not slip jointed. I would go for the Gruppe-S headers or similar, there is a group buy here. http://bbs.scoobynet.co.uk/showthread.php?t=450544
Neil
Neil
17 December 2005, 10:00 PM
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how much bhp
Originally Posted by Peanuts
properly ported OE headers are the nuts
17 December 2005, 10:18 PM
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how can u tell the difference
Originally Posted by Peanuts
properly ported OE headers are the nuts
18 December 2005, 01:14 PM
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equal length
ive got the equal length ones on my car. they twist and turn through more bends to make them all equal length. they give you **** loads more torque. i gained loads when i had it mapped and yes it sounds like a gsxr on steroids!
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20 December 2005, 02:07 PM
#8
Fitting tubular headers will lift the spool point, typically by 350 rpm. Ultimate top end power will be a little more.
A lot depends on what you want to achieve and if you are not running a bigger after market hybrid turbo, then porting your O/E headers is probably the best option and pretty cost effective for the gains achieved.
A lot depends on what you want to achieve and if you are not running a bigger after market hybrid turbo, then porting your O/E headers is probably the best option and pretty cost effective for the gains achieved.
Last edited by ex-webby; 21 December 2005 at 02:54 PM.
21 December 2005, 01:35 PM
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Originally Posted by harvey
The improved gas flow will weaken the AFR but not by a signifigant amount unless other mads are done.
21 December 2005, 03:04 PM
#12
To clarify because it is important, my comments relate to ported O/E headers.
I would not fit tubular headers without a remap because the characteristics are changed so much you could cause yourself a problem and at the least you will not get the best out of the modification.
Be careful because there are some duff aftermarket headers out there.
I would not fit tubular headers without a remap because the characteristics are changed so much you could cause yourself a problem and at the least you will not get the best out of the modification.
Be careful because there are some duff aftermarket headers out there.
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