marshygsi
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Registered: 30th Jun 07
Location: cheshire
User status: Offline
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hi will it lose lots of back pressure if i put a decat with straight though middle section
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DAZ1985
Member
Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
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No it will be fine
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Forbes789
Member
Registered: 19th Sep 07
Location: Buckie, Moray
User status: Offline
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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
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marshygsi
Member
Registered: 30th Jun 07
Location: cheshire
User status: Offline
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1.4 8v
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Forbes789
Member
Registered: 19th Sep 07
Location: Buckie, Moray
User status: Offline
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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
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marshygsi
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Registered: 30th Jun 07
Location: cheshire
User status: Offline
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sportex twin dtm upswept
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marshygsi
Member
Registered: 30th Jun 07
Location: cheshire
User status: Offline
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i know this sounds stupid but how do you pop flames
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marshygsi
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Registered: 30th Jun 07
Location: cheshire
User status: Offline
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lol
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Forbes789
Member
Registered: 19th Sep 07
Location: Buckie, Moray
User status: Offline
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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
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Gareth F
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Registered: 16th Jan 08
Location: Location Location
User status: Offline
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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)
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Gareth F
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Registered: 16th Jan 08
Location: Location Location
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Very little blip of a flame tho
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marshygsi
Member
Registered: 30th Jun 07
Location: cheshire
User status: Offline
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mines fullt straight though
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Kevxx
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Registered: 14th May 08
Location: Forfar, Angus
User status: Offline
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you generally don't want pops and bangs mate especially from a 1.4
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byrnie_2004
Member
Registered: 11th Mar 07
Location: Marple, Greater Manchester
User status: Offline
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my old 1.4 8v used to pop a bit (flash of flame) with a full straight through when giving it some shit.
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Forbes789
Member
Registered: 19th Sep 07
Location: Buckie, Moray
User status: Offline
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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
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c20kenny
Member
Registered: 12th Jun 08
Location: Cumbria
User status: Offline
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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
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corsa_danny
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Registered: 3rd Apr 08
Location: northamptonshire
User status: Offline
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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
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Bagsy1.6
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Registered: 25th May 08
Location: Greater Manchester
User status: Offline
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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
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shaunmods
Premium Member
Registered: 12th Mar 07
Location: Glascote, Staffordshire
User status: Offline
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my 1.0 pops and bangs lovely with the straight through middle section Dont think it pops flames though lol
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Richardhhha
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Registered: 29th Sep 07
Location: Croydon, Greater London
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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..
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harrisp
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Registered: 15th Dec 07
Location: Derbyshire
User status: Offline
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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 .
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chris_gilly
Member
Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline
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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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