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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » Group A cat back exaust systems, any good??? » Post Reply
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broster |
posted on 24th Jun 03 at 10:17 |
got the 1.4 16v | |
Adam |
posted on 24th Jun 03 at 10:15 |
cos after the turbo you want rid off the gas as soon as possible | |
Kris TD |
posted on 24th Jun 03 at 10:00 |
grp a as said is too big for an otherwise standard engine, 2 1/2 inch is what i would use on my turbo cos i actually want to decrease back pressure whereas you dont want to loose it. | |
MoNkEy MaGiC |
posted on 24th Jun 03 at 09:52 |
which corsa do u have mate? | |
broster |
posted on 23rd Jun 03 at 16:12 |
sounds a bit quieter but the k&n is a deaper note than the viper, the viper is a better note i fink, slightly raspy an howls at 6-6500. performance is better aswell, itll be noticable, give more low down torque than the k&n. worth it for the money | |
MoNkEy MaGiC |
posted on 23rd Jun 03 at 15:09 |
my cars just got the group A exaust and a KnN induction kit so far. | |
broster |
posted on 23rd Jun 03 at 13:35 |
iv got a grp a system on my car with viper an lexmaul inlet, the zorst sounds nice an made the car rev better an a slight improvment in acceleration, nuffin amazin but its noticable! as JJ said its after the middle box that its gets to grp a bore so its hardly gunna make that much difference, next up is cams an a chip! | |
big eck |
posted on 23rd Jun 03 at 09:54 |
I've got a full group a system, de-catted and 4 branch manifold zorst on ma car and it makes a big difference, adds about another 5-10bhp. Put a set of cams in your car and get the head reworked you;ll notice big gains then. | |
miles |
posted on 23rd Jun 03 at 00:15 |
A bore that is too big will reduce torque. | |
JJ |
posted on 23rd Jun 03 at 00:13 |
I've got a 1.6 16v sport with the scorpion group a system no cat and some sly engine work ;) the system wont make the car any slower as standard, it will slightly increase torque and feel smoother, wont do anything for your fuel economy either lol, run the car as much as possible on super unleaded as it has a higher octain level and the engine should run really well, as for the increased bore, that is only after the centre box anyway, so all it does is clear the exhaust gases slightly quicker as its leaving after the centre box. oh yes, and gives a nice note ;) | |
Makarus |
posted on 22nd Jun 03 at 22:07 |
From what I know a Group A system is like dousey said for highly modified engines, a standard 1.6 16V wont need that kinda system so you should loose acceleration because the back pressure will be lost. | |
dousey |
posted on 22nd Jun 03 at 21:17 |
Yeah i have heard that the grp a systems reduce power unless the engine is heavily modified so it needs a bigger bore exhaust to get exhaust gasses out of the engine quicker. | |
MoNkEy MaGiC |
posted on 22nd Jun 03 at 20:25 |
hi guys, ive got a corsa 1.6 16v Gsi, ive recently fitted a full group A exaust system :) |