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| Author | Subject: Pops and bangs |
 swiftyboi006
Seasoned Pro  Location: Maidenhead Registered: 12 Apr 2010 Posts: 2,110 Status: Offline |
Post #1
I run a decat straight through to a stainless back box but I want some pops and bangs. It's an unknown make back box so do you think this is why it doesn't pop or bang?. Enlighten me with your knowledge  ________________________________________ cherry p1.....SOLD (regreting this)blaze p2.....why did i buy this SOLD Black p3  |
 Posted 21st Feb 2012 at 18:46
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judge dead
Regular  Location: Scotland Registered: 30 Jul 2011 Posts: 397 Status: Offline |
Post #2
i had a stright thru with only a back box and it pop/banged like f evan with the cat on it still done it i set my mums 09 mini alarm off with it once  altho it was custom exhaust |
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Posted 21st Feb 2012 at 18:49
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #3
I run a Devil Decat, straight through centre section and 4" Magnex backbox.It simply can't stop popping and banging.  How big is the backbox?  ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 21st Feb 2012 at 18:50
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swiftyboi006
Seasoned Pro Location: Maidenhead Registered: 12 Apr 2010 Posts: 2,110 Status: Offline |
Post #4
4" stan but atm i got an awful halfords induction will fit my bmc cda 2mo i think the halfords 1. Is quite restrictive to be honest. ________________________________________ cherry p1.....SOLD (regreting this)blaze p2.....why did i buy this SOLD Black p3 |
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Posted 21st Feb 2012 at 21:55
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swiftyboi006
Seasoned Pro Location: Maidenhead Registered: 12 Apr 2010 Posts: 2,110 Status: Offline |
Post #5
If the bmc dont help then surely its the back box?________________________________________ cherry p1.....SOLD (regreting this)blaze p2.....why did i buy this SOLD Black p3 |
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Posted 21st Feb 2012 at 22:07
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luke306rallye
Regular  Location: Rotherham Registered: 13 Sep 2010 Posts: 310 Status: Offline |
Post #6
How long has the decat been on for? |
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Posted 21st Feb 2012 at 23:16
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king of the hill
Regular  Location: falkirk Registered: 13 Oct 2011 Posts: 253 Status: Offline |
Post #7
Straight thru mongoose backbox pops more times than a box of rice crispies but i have carbs and no filters________________________________________ DON!T BUY IT---EARN IT |
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Posted 21st Feb 2012 at 23:40
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buzzbrightyear
Seasoned Pro  Location: hiding all receipts for car Registered: 09 Jul 2008 Posts: 11,901 Status: Offline |
Post #8
stan_306gti6 wrote: I run a Devil Decat, straight through centre section and 4" Magnex backbox. It simply can't stop popping and banging. How big is the backbox? mines the same!________________________________________ andrew315rawson@live.co.ukMoonstone phase 7 gti6 My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1 |
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Posted 22nd Feb 2012 at 04:52
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swiftyboi006
Seasoned Pro Location: Maidenhead Registered: 12 Apr 2010 Posts: 2,110 Status: Offline |
Post #9
Decat about a year but only just put the car back on the road after 6 months________________________________________ cherry p1.....SOLD (regreting this)blaze p2.....why did i buy this SOLD Black p3 |
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Posted 22nd Feb 2012 at 07:22
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #10
It is true to say, the decats do take a while of "bedding in" before they really start popping and banging all the time.  Maybe give it a few more miles, and also see if you can sort out the restrictvie inlet setup. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 22nd Feb 2012 at 07:24
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swiftyboi006
Seasoned Pro Location: Maidenhead Registered: 12 Apr 2010 Posts: 2,110 Status: Offline |
Post #11
Bmc should be deliverd today will get it fitted and post again. Also gotta sort out the icv as it started playing up last night________________________________________ cherry p1.....SOLD (regreting this)blaze p2.....why did i buy this SOLD Black p3 |
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Posted 22nd Feb 2012 at 09:47
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hsustyle
Seasoned Pro  Location: High Hurstwood Registered: 08 Nov 2011 Posts: 1,037 Status: Offline |
Post #12
swiftyboi006 wrote: Bmc should be deliverd today will get it fitted and post again. Also gotta sort out the icv as it started playing up last night I have a spare working icv if you need one. I found heatwrapping the exhaust manifold made my old 106 pop a lot more, not sure if it makes any difference on the Gti6/Rallye lump ________________________________________ Beef Beyond Belief |
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Posted 22nd Feb 2012 at 10:22
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gman
Seasoned Pro  Location: Didcot Registered: 25 Oct 2007 Posts: 1,471 Status: Offline |
Post #13
I've got no cat on my 205 GTI6 and get no pops or bangs, and that's with a standard exhaust. Shame, although I think I'd only like the pops and not the bangs!________________________________________ 1992 Onyx Black 205 GTI-62005 Honda S2000 (Sold) 2002 Audi S3 (Sold) 2005 Clio 182 Trophy (sold) |
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Posted 22nd Feb 2012 at 10:27
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #14
its the management that causes the noises, not the exhaust.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 22nd Feb 2012 at 10:46
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russbez
Seasoned Pro  Location: Inverness-Shire Registered: 19 Dec 2005 Posts: 7,459 Status: Offline |
Post #15
i have got two different maps from RichWthink one was revision 3 and the newer one i have is revision 4 revision 3 spat out flames if i rev'ed the right way revision 4 seems to pop a lot less and i really have to try i had my decat on for near a year before i heard any pops when my engine was standard probably best it doesnt pop, i always end up scaring the shite out of people ________________________________________ TEAM HIGH BOOST SUPERCHARGED RALLYEMy Rallye project thread |
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Posted 22nd Feb 2012 at 10:54
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adam b
Seasoned Pro  Location: The Nam Registered: 24 Jan 2006 Posts: 12,828 Status: Offline |
Post #16
Yeah people don't like it when you change gear going past them and you get flames out the back. Especially not out of a Volvo  ________________________________________ Nothing to see here |
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Posted 22nd Feb 2012 at 11:13
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swiftyboi006
Seasoned Pro Location: Maidenhead Registered: 12 Apr 2010 Posts: 2,110 Status: Offline |
Post #17
Hsustyle im going to give mine a clean and see if that works first mate if not il pm you. Lots of people on there have standard management and get pops and bangs and im pretty sure mine isnt mapped. ________________________________________ cherry p1.....SOLD (regreting this)blaze p2.....why did i buy this SOLD Black p3 |
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Posted 22nd Feb 2012 at 14:05
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #18
Welshpug does have a point though, I am sure the mapping on my DTA ECU has a lot to do with the amount it pops and bangs, as it didn't used to be anywhere near it when I was running the re-mapped 1AP unit on high boost with the same exhaust setup. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 22nd Feb 2012 at 14:26
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ruan
Junior User  Location: Truro Registered: 17 Sep 2009 Posts: 64 Status: Offline |
Post #19
As Mei says, it's a lot to do with the management, and down to mapping, the 106 GTi TU5 engines on IAW management pop and bang like hell on the overrun yet GTi6s don't seem to anywhere near as bad and they are IAW 1AP.10 also... |
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Posted 22nd Feb 2012 at 14:32
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aaron6
Seasoned Pro  Location: On the sofa in maidstone Registered: 16 May 2006 Posts: 5,840 Status: Offline |
Post #20
Mattyrallye has a customised longlife now and pops bangs and flames. But it didnt really do it with old 3" magnex so the exhaust must make some difference.________________________________________ See the sheer power and might of the lesser known burrowing owl. |
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Posted 22nd Feb 2012 at 15:09
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russbez
Seasoned Pro Location: Inverness-Shire Registered: 19 Dec 2005 Posts: 7,459 Status: Offline |
Post #21
chrisd306 used to have nothing more than aftermarket exhaust +decat on an old blaze gti6 he hadhas pops and bangs were louder than my squealing brembos his was standard ecu (back in the day!) ________________________________________ TEAM HIGH BOOST SUPERCHARGED RALLYEMy Rallye project thread |
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Posted 22nd Feb 2012 at 15:23
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swiftyboi006
Seasoned Pro Location: Maidenhead Registered: 12 Apr 2010 Posts: 2,110 Status: Offline |
Post #22
I think overall maybe we can come to an agreement that its management and zorst together. But surely every standard 6 Ecu regardless of p1/p2/p3 has the same mapping yet some will pop and bang and some wont.________________________________________ cherry p1.....SOLD (regreting this)blaze p2.....why did i buy this SOLD Black p3 |
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Posted 22nd Feb 2012 at 15:26
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russbez
Seasoned Pro Location: Inverness-Shire Registered: 19 Dec 2005 Posts: 7,459 Status: Offline |
Post #23
also read super unleaded makes more pops, not sure if thats just wives tales? iv pretty much always used super unleaded  ________________________________________ TEAM HIGH BOOST SUPERCHARGED RALLYEMy Rallye project thread |
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Posted 22nd Feb 2012 at 15:37
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ruan
Junior User Location: Truro Registered: 17 Sep 2009 Posts: 64 Status: Offline |
Post #24
I'd have said normal Unleaded would pop/bang more? The higher Octane means that Super would explode less easily due to heat/compression... I'm not 100% on that though, there's probably a reason that causes Super to do it more... |
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Posted 22nd Feb 2012 at 15:41
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swiftyboi006
Seasoned Pro Location: Maidenhead Registered: 12 Apr 2010 Posts: 2,110 Status: Offline |
Post #25
Just been out in the car n its actualy doing my head in, i need ear defenders lol. Thing is befor the straight through middle i hates the noise of the middle box it had so i dunno what to do. Was thinkin about a standard back box? I think maybe the noise wont p*ss me off as much as the 4"________________________________________ cherry p1.....SOLD (regreting this)blaze p2.....why did i buy this SOLD Black p3 |
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Posted 22nd Feb 2012 at 21:14
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