Post #26
Its quite a decent sized backbox, 400mm long but it's quite wide (I'd say around 400mm). I'll get a pic up shortly.________________________________________
Simon
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displaying posts 26 to 47 of 47
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| Author | Subject: Track day Exhaust for low boost 6 |
 simonmanchester
Newbie  Location: Nottingham Registered: 27 Apr 2017 Posts: 16 Status: Offline |
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 Posted 2nd May 2017 at 20:59
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simonmanchester
Newbie Location: Nottingham Registered: 27 Apr 2017 Posts: 16 Status: Offline |
Post #27
Correction, it's about 250mm wide...  ________________________________________ Simon |
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Posted 3rd May 2017 at 08:00
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simonmanchester
Newbie Location: Nottingham Registered: 27 Apr 2017 Posts: 16 Status: Offline |
Post #28
Bonus pic... ________________________________________ Simon |
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Posted 3rd May 2017 at 07:57
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simonmanchester
Newbie Location: Nottingham Registered: 27 Apr 2017 Posts: 16 Status: Offline |
Post #29
Edited links for pictures.I've ordered the acoustafil so hopefully that should make it quiet enough. ________________________________________ Simon |
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Posted 3rd May 2017 at 08:03
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adam b
Seasoned Pro  Location: The Nam Registered: 24 Jan 2006 Posts: 12,828 Status: Offline |
Post #30
What diameter is the pipe in the centre? It looks pretty small..________________________________________ Nothing to see here |
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Posted 4th May 2017 at 21:10
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simonmanchester
Newbie Location: Nottingham Registered: 27 Apr 2017 Posts: 16 Status: Offline |
Post #31
2" - not ideal I guess. Acoustafil still hasn't arrived, so no updates yet. Itching to get it done so I can get back on the track  ________________________________________ Simon |
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Posted 8th May 2017 at 07:49
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3rd time lucky
Seasoned Pro  Location: maidstone Registered: 23 Apr 2007 Posts: 1,879 Status: Offline |
Post #32
Bro! Low boost should be running 2.5" all the way through.________________________________________ DIABLO GTI-6 - Legend - NILE GTI-6 - SoldCHERRY GTI-6 P1 SUPERCHARGED - Broken up BLACK RALLYE - Sold 205 Dturbo xud9 work horse - Dead CHERRY RALLYE - new toy |
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Posted 8th May 2017 at 08:31
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3rd time lucky
Seasoned Pro Location: maidstone Registered: 23 Apr 2007 Posts: 1,879 Status: Offline |
Post #33
Even the standard exhaust is 2 1/4" iirc.________________________________________ DIABLO GTI-6 - Legend - NILE GTI-6 - SoldCHERRY GTI-6 P1 SUPERCHARGED - Broken up BLACK RALLYE - Sold 205 Dturbo xud9 work horse - Dead CHERRY RALLYE - new toy |
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Posted 8th May 2017 at 08:32
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simonmanchester
Newbie Location: Nottingham Registered: 27 Apr 2017 Posts: 16 Status: Offline |
Post #34
Yea it's probably on the small side but it didn't seem to affect the performance, still quick. Would a larger diameter exhaust be noisier though?________________________________________ Simon |
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Posted 9th May 2017 at 08:21
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manthos
Seasoned Pro  Location: Norwich Registered: 29 Apr 2009 Posts: 1,966 Status: Offline |
Post #35
I have a full 2.5" jetex system I'm willing to sell sitting in the garage if you're interested that will shut it up perfectly________________________________________ Team SUPERCHARGED I LIVE FOR THE 306 Old Project thread Clicky: [url =http://www.306gti6.com]click here[/url] remove the space between [url = |
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Posted 9th May 2017 at 09:32
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #36
standard exhaust tapered from 2.5 at the engine to 2" at the tailpipe.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 9th May 2017 at 12:01
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simonmanchester
Newbie Location: Nottingham Registered: 27 Apr 2017 Posts: 16 Status: Offline |
Post #37
I've pm'd you manthos :-)________________________________________ Simon |
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Posted 9th May 2017 at 18:23
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simonmanchester
Newbie Location: Nottingham Registered: 27 Apr 2017 Posts: 16 Status: Offline |
Post #38
Thank you to manthos - I now have a Jetex fitted, and its definitely a lot quieter. I think the performance is slightly better so definitely having the 2.5" bore helps with the low boost charger. I just need to get it to an exhaust fitter to alter it slightly as its knocking underneath a bit (struggled to fit it whilst lying underneath my trailer), then I can book another session on the track and find out for sure Thanks everyone for the advice - much appreciated! ________________________________________ Simon |
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Posted 16th May 2017 at 10:44
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3rd time lucky
Seasoned Pro Location: maidstone Registered: 23 Apr 2007 Posts: 1,879 Status: Offline |
Post #39
Awesome  ________________________________________ DIABLO GTI-6 - Legend - NILE GTI-6 - SoldCHERRY GTI-6 P1 SUPERCHARGED - Broken up BLACK RALLYE - Sold 205 Dturbo xud9 work horse - Dead CHERRY RALLYE - new toy |
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Posted 16th May 2017 at 10:48
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simonmanchester
Newbie Location: Nottingham Registered: 27 Apr 2017 Posts: 16 Status: Offline |
Post #40
Slight issue, but just want to make sure I'm not being a dumb ass. Its knocking underneath the car, so I took it to an exhaust place and he had a look. He said the system seems to be too far forward towards the front of the car, and he let me have a look whilst it was on the ramps.It does seem that all the brackets, bends etc, are about 2" out of place. He suggested I take it to an exhaust centre that creates stainless systems and have a 2" section welded into the cat section to push the system backwards into the correct place. When fitting the Jetex, I had to remove the existing decat pipe as it had an incorrect flange (I think thats what the joint is called) for mating up to the Jetex system, so I used the spare cat I had in the garage and knocked the internals out (effectively making it a decat system). I'm not sure, but i'm guessing the decat I had before was longer than the original cat on the original system. Whats my options? Get a new decat pipe made? or modify the cat i have to be longer? Is there anything i can do to lengthen the cat without having to remove it from the car? ________________________________________ Simon |
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Posted 24th May 2017 at 14:31
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3rd time lucky
Seasoned Pro Location: maidstone Registered: 23 Apr 2007 Posts: 1,879 Status: Offline |
Post #41
Any pics of the previous decat flange, current joint between cat and centre pipe?________________________________________ DIABLO GTI-6 - Legend - NILE GTI-6 - SoldCHERRY GTI-6 P1 SUPERCHARGED - Broken up BLACK RALLYE - Sold 205 Dturbo xud9 work horse - Dead CHERRY RALLYE - new toy |
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Posted 24th May 2017 at 16:42
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RetroPug
Seasoned Pro  Location: Leicestershire Registered: 15 Jan 2013 Posts: 2,473 Status: Offline |
Post #42
Either get the correct flange welded onto the decat, or get extra length welded onto the end of what is currently fitted.________________________________________ 61k miles Ph.1 Diablo '6 Project Thread |
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Posted 24th May 2017 at 20:27
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barrym
Senior User  Location: Westcliff-on-sea Registered: 26 Jun 2014 Posts: 502 Status: Offline |
Post #43
Not sure what you have going wrong there but my Jetex fitted perfect first time________________________________________ China D Turbo HDi daily chargerBlack Rallye occassional toy |
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Posted 24th May 2017 at 20:49
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3rd time lucky
Seasoned Pro Location: maidstone Registered: 23 Apr 2007 Posts: 1,879 Status: Offline |
Post #44
I can't imagine a hollowed out cat is good for air flow, although I'm sure it's been done time and time before. Your better off with the proper decat but with the correct flange fitted ________________________________________ DIABLO GTI-6 - Legend - NILE GTI-6 - SoldCHERRY GTI-6 P1 SUPERCHARGED - Broken up BLACK RALLYE - Sold 205 Dturbo xud9 work horse - Dead CHERRY RALLYE - new toy |
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Posted 25th May 2017 at 07:13
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline |
Post #45
it wont hurt it, less restriction than a cat but messes up the pulse tuning less than a straight pipe.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 25th May 2017 at 10:56
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adam b
Seasoned Pro Location: The Nam Registered: 24 Jan 2006 Posts: 12,828 Status: Offline |
Post #46
welshpug! wrote: it wont hurt it, less restriction than a cat but messes up the pulse tuning less than a straight pipe. It's charged now, not sure it matters as much as on n/a or before a turbo. Best scavenge possible is the way to go - get heat away as quickly as you can ________________________________________ Nothing to see here |
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Posted 25th May 2017 at 20:50
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simonmanchester
Newbie Location: Nottingham Registered: 27 Apr 2017 Posts: 16 Status: Offline |
Post #47
Just realised I didn't update this thread. I ended up getting a spookx decat and a trusted garage to fit it all properly, no knocking and all aligns up properly. Took it to donington this week for a trackday and didn't get flagged. Thanks everyone :-)________________________________________ Simon |
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Posted 22nd Oct 2017 at 13:10
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