full straight though exhaust - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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marshygsi

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Registered: 30th Jun 07
Location: cheshire
User status: Offline

3rd Nov 08 at 02:09

hi will it lose lots of back pressure if i put a decat with straight though middle section

DAZ1985

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Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
User status: Offline

3rd Nov 08 at 08:43

No it will be fine

Forbes789

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Registered: 19th Sep 07
Location: Buckie, Moray
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3rd Nov 08 at 17:16

which engine, i've got a 4-2-1 manifold sport cat and stanless mid box with no back box spliting to 2 pipes,

but if i was to do it i'd get a 4-2-1 manifold sport cat and no mid box in the system, all in stainless

:S if that makes sense

marshygsi

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Registered: 30th Jun 07
Location: cheshire
User status: Offline

3rd Nov 08 at 18:50

1.4 8v

Forbes789

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Registered: 19th Sep 07
Location: Buckie, Moray
User status: Offline

3rd Nov 08 at 20:17

take out the cat and mid box will make a lot of noise, you got a back box?

would possibelly be worth getting a manifold

marshygsi

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Registered: 30th Jun 07
Location: cheshire
User status: Offline

4th Nov 08 at 05:07

sportex twin dtm upswept

marshygsi

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Registered: 30th Jun 07
Location: cheshire
User status: Offline

4th Nov 08 at 05:08

i know this sounds stupid but how do you pop flames

marshygsi

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Registered: 30th Jun 07
Location: cheshire
User status: Offline

4th Nov 08 at 05:08

lol

Forbes789

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Registered: 19th Sep 07
Location: Buckie, Moray
User status: Offline

4th Nov 08 at 18:52

generally flames are when he car is overfuling and this is ignited

apart from a flamer kit i dont think you can make it do it though

a decat and a straight thru would prob manage it i would rekon

Gareth F

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Registered: 16th Jan 08
Location: Location Location
User status: Offline

4th Nov 08 at 19:12

My mates 205 popped flames without a flame kit. Tottally straight through exhaust tho. Think it had a 2.0 turbo zantia engine in it (dont know spelling of it)

Gareth F

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Registered: 16th Jan 08
Location: Location Location
User status: Offline

4th Nov 08 at 19:12

Very little blip of a flame tho

marshygsi

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Registered: 30th Jun 07
Location: cheshire
User status: Offline

5th Nov 08 at 04:31

mines fullt straight though

Kevxx

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Registered: 14th May 08
Location: Forfar, Angus
User status: Offline

5th Nov 08 at 13:03

you generally don't want pops and bangs mate

especially from a 1.4

byrnie_2004

Member

Registered: 11th Mar 07
Location: Marple, Greater Manchester
User status: Offline

5th Nov 08 at 16:07

my old 1.4 8v used to pop a bit (flash of flame) with a full straight through when giving it some shit.

Forbes789

Member

Registered: 19th Sep 07
Location: Buckie, Moray
User status: Offline

5th Nov 08 at 17:29

quote:
Originally posted by Kevxx
you generally don't want pops and bangs mate especially from a 1.4

why not, a sign of overfueiling??

mines as stated above and it backfires coming down the box but no flames, ever lol

c20kenny

Member

Registered: 12th Jun 08
Location: Cumbria
User status: Offline

6th Nov 08 at 00:23

my old corsa 1.2 8v had no cat an a straight pipe to a back box and that spat 1ft flames when ever it felt like it but it blew the head more times than anything else

corsa_danny

Member

Registered: 3rd Apr 08
Location: northamptonshire
User status: Offline

6th Nov 08 at 16:28

have it in neutral rev it to the limiter then let off tiny bit, then turn igniton off then as it dyin abit turn it back on again. makes it backfire flames,.well worked in my nova 1.2carb with no cat but that backfired like a shotgun about 10times when slowin down lol

Bagsy1.6

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Registered: 25th May 08
Location: Greater Manchester
User status: Offline

8th Dec 08 at 17:51

my gsi pops 2 foot flames wen you keep stamping the throttle between 5 and 6000rpm and when i change from 2nd to 3rd quick after a good raggin. thats a powerflow straight thru, de-cat and 4-2-1 manifold

shaunmods

Premium Member

Registered: 12th Mar 07
Location: Glascote, Staffordshire
User status: Offline

8th Dec 08 at 18:24

my 1.0 pops and bangs lovely with the straight through middle section

Dont think it pops flames though lol

Richardhhha

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Registered: 29th Sep 07
Location: Croydon, Greater London
User status: Offline

8th Dec 08 at 22:12

my 14xe did pop flame when i had a 4-1 and decat with straight through mid section and back box.. Lambda was only reading off cylinder 3 so was over fueling like a git.. The xe pops a lot on over run which is a bit of fun and sounds quite nice when changing down the box..

harrisp

Member

Registered: 15th Dec 07
Location: Derbyshire
User status: Offline

8th Dec 08 at 22:14

quote:
Originally posted by shaunmods
my 1.0 pops and bangs lovely with the straight through middle section Dont think it pops flames though lol

My 1.0 does too, when its warm

chris_gilly

Member

Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline

9th Dec 08 at 12:10

with most aftermarket exhaust systems they seem to pop and bang (resonance i believe its called) my old R5 GTS used to do!!) im hoping my 1.2 8v will do it when it comes to removing the mid box!!

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