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Author whats the difference between a group a exhaust
psycho sport
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Registered: 27th Mar 03
Location: Guildford Surrey Drives: Vauxhall Monaro
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24th Sep 03 at 16:55   View User's Profile U2U Member Reply With Quote
and a normal after market one? what does the group bit mean?
broster
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Registered: 6th Dec 02
Location: Drives: E39
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24th Sep 03 at 16:56   View Garage View User's Profile U2U Member Reply With Quote
group a is a bigger bore
psycho sport
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Registered: 27th Mar 03
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24th Sep 03 at 16:58   View User's Profile U2U Member Reply With Quote
meaning what? more power?
broster
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24th Sep 03 at 17:00   View Garage View User's Profile U2U Member Reply With Quote
i have a group a on my car and it made a slight noticable diff, but u get more noticable diff on turbo an bigger engine cars with grp a spec
ffls
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Registered: 29th May 02
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   24th Sep 03 at 17:02   View User's Profile U2U Member Reply With Quote
It's the bore, 63,5mm
And in High output engines gives you an advantage over the Group n
psycho sport
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Registered: 27th Mar 03
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24th Sep 03 at 17:08   View User's Profile U2U Member Reply With Quote
what's a good exhaust company to buy from?
broster
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24th Sep 03 at 17:14   View Garage View User's Profile U2U Member Reply With Quote
scorpion are good, i have their grp a imola on my car.
ffls
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   24th Sep 03 at 17:22   View User's Profile U2U Member Reply With Quote
So scorpion makes Group A decat pipes
psycho sport
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Registered: 27th Mar 03
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24th Sep 03 at 17:28   View User's Profile U2U Member Reply With Quote
whats the differnce? power?noise? did u get the full system?
ffls
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   24th Sep 03 at 17:32   View User's Profile U2U Member Reply With Quote
Power is the name of the game.
My car with decat pipe and KN panel Filter + cold air pipe gave 89,8 bhp in the rolling road
With Grp A System it revs much faster but Mantzel only quotes +2bhp for the system and +5bhp for the sports cat
So I want some of that power gains and I think the decat pipe is holding the engine a bit, because its standard diameter
psycho sport
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Registered: 27th Mar 03
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24th Sep 03 at 17:34   View User's Profile U2U Member Reply With Quote
what engine u got?
ffls
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Registered: 29th May 02
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   24th Sep 03 at 17:37   View User's Profile U2U Member Reply With Quote
1.4 16V
With Superchip KN with two air pipes, Mantzel Powerbox, Mantzel Group A zorst, blocked EGR, decat pipe
Gave 114,8 bhp in the rr
But I was hoping more from the Zorst in terms of power
dave17
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Registered: 3rd Sep 02
Location: Greater London
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2nd Oct 03 at 22:42   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by ffls
1.4 16V
With Superchip KN with two air pipes, Mantzel Powerbox, Mantzel Group A zorst, blocked EGR, decat pipe
Gave 114,8 bhp in the rr
But I was hoping more from the Zorst in terms of power


is that all?!?! i was thinking of getting the same kinda things! wot 0-60 times u gettin?
ffls
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   2nd Oct 03 at 23:45   View User's Profile U2U Member Reply With Quote
But mate,

The car is much faster than the original one. Now you can rev the car till 7200 rpm with power (max power at 7000 rpm), and it revs much faster. I suppose I can get 0-62mph in 9 sec in second gear or less
ffls
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Registered: 29th May 02
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   3rd Oct 03 at 14:49   View User's Profile U2U Member Reply With Quote
Plus Head Job +10 bhp
Plus cams +10 bhp
Plus exhaust manifold +3 bhp
plus enlarged throttle bodie +3bhp
And you may reach 140 bhp, maybe

 
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