Regal Re-map
#1
Posted 15 April 2003 - 11:18 AM
#2
Posted 15 April 2003 - 11:46 AM
#3
Posted 15 April 2003 - 12:31 PM
Steveyou just wait until you have the inlet manifold!
then the car will howl with pleasure!
On this subject how much did the inlet manifold increase the in-cabin noise levels over the full exhaust, K&N & re-map.
I am now contemplating the next stage but don't really want to increase the noise much more.
Paul
#4
Posted 16 April 2003 - 07:50 AM
#5
Posted 16 April 2003 - 08:30 AM
#6
Posted 16 April 2003 - 09:22 AM
#7
Posted 16 April 2003 - 11:48 AM
Well bugger me senseless....I didn't know that.My only concern with fitting the regal exhaust is the crash worthiness, as the Vauxhall exhaust is designed to add to the crumple zone at the rear. Little concerned that the regal one is designed purely for performance, and a rear end shunt may therefore cause more problems......
Nick
#8
Posted 16 April 2003 - 12:13 PM
#9
Posted 16 April 2003 - 12:26 PM
#10
Posted 16 April 2003 - 12:29 PM
Is it really correct or just a marketing ploy??Thorney
I for one will decline the offer, ta, but it's correct re the exhaust
The standard exhaust in my garage taken off my car looks no different in basic design to the Regal one now fitted.. There is however a weight difference so this may bear some relation to impact sustainability.
#11
Posted 16 April 2003 - 12:55 PM
#12
Posted 16 April 2003 - 01:52 PM
#13
Posted 16 April 2003 - 02:16 PM
OK, you're scaring me nowA good example is this - take a piece of paper and fold it in half, rest it on the desk in a ^ shape, then flatten it and feel how little energy it absorbs. Now fold the piece of paper in half the other way (i.e. make it into a little wall with a 90degree bend in it) and then try again. It takes a lot mor force to flatten it.
#14
Posted 16 April 2003 - 03:10 PM
#15
Posted 16 April 2003 - 05:07 PM
#16
Posted 17 April 2003 - 07:46 AM
This is why the Sports Exhaust from Vauxhall is stamped with 'Not for Road Use'
It's a nice thought, but sadly I believe the reason for this is much more boring. As part of the Type Approval process, without which a car cannot be sold legally in the EU, vehicles have to pass a drive by noise test, which the Vauxhall sports exhaust probably wouldn't pass - these are the E11 (11 being the UK designation) marks you will see all over your cars (unless you bought a non EU import ).
This only applies to OEM parts that the car is homologated with, but technically if a dealer fitted the exhaust to a brand new unregistered car it would fall foul of the regulations.
Subaru and Prodrive for example get round this by only fitting the Performance Pack and other enhancements to cars after they are registered - the Type Approval process doesn't then apply to secondhand parts in the same way.
Re the exhaust being part of the crumple zone, there is no legal or Type Approval requirement for crash testing standards yet as such - although there are certain basic safety standards - but Max Mosley is constantly pushing the Euro NCAP (New Car Assessment Program) test and this will, probably, eventually become part of law/the Type Approval process.
At the moment the tests cover head on, side, pole and pedestrian safety, but rear impact is not considered to be that important.
In a head on crash there is a massive amount of kinetic energy that has to be dissipated, and this can only be absorbed through the structure of the cars (or their occupants). In a rear end accident the shock loadings are much less, in relative terms, because the car that is hit is normally able to lose some of the kinetic energy by bouncing forwards.
Sir Isaac Newton's third law of physics - "every action has an equal and opposite reaction"
Edited by Dave T-S, 17 April 2003 - 07:58 AM.
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