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camngetit
Premium Member Joined: 28 May 2009 Location: nottingham uk Status: Offline Points: 1440 |
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Posted: 10 Apr 2014 at 16:08 |
its twins for me !!!!
www.apriliaperformance.co.uk www.apriliaforum.co.uk www.apriliaownersclub.co.uk |
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pjroth72
Premium Member Joined: 06 Jul 2012 Location: west yorkshire Status: Offline Points: 2901 |
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R u sure you not had Johnboy round there ;-p .looking good
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Johnboy
Premium Member Joined: 10 Apr 2013 Location: Wrexham Status: Offline Points: 4779 |
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LOOOOL
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camngetit
Premium Member Joined: 28 May 2009 Location: nottingham uk Status: Offline Points: 1440 |
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I modded them at work and cleaned them up with a little air grinder that has an abrasive pad bit like scotch pad but harder then had seven weeks off so just managed to get my bench grinder with a buffing mop on it . It's not as good as I would like but good enough for what's seen .
Just need a forza chip 200 it's got a 100 in at the mo |
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its twins for me !!!!
www.apriliaperformance.co.uk www.apriliaforum.co.uk www.apriliaownersclub.co.uk |
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NickyBoy1984
Moderator Group Exhaust freak! Joined: 24 Dec 2011 Location: Essex Status: Offline Points: 10532 |
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YummY
NickyBoy
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www.rsvr.net
www.apriliaperformance.co.uk www.apriliaforum.co.uk www.apriliaownersclub.co.uk |
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redratbike
Moderator Group The Collector Messiah Joined: 07 May 2008 Status: Offline Points: 16146 |
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Be nice if they stayed like that
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smw
Moto GP Alien Joined: 06 Mar 2014 Location: Notts Status: Offline Points: 1439 |
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Ive just PM'd a chap about this. What is this mod that I keep hearing about and who wants to do it for me or tell me how (get friend to) to do it? Id appreciate a tad of info please. I really need to get my arse into gear and get down to AP to speak to them. The time really has come. I think I need to sort the fuelling out as it seems a bit lumpy down low. I need to spend a bit of cash I think and give it what it needs. Only trouble is that I dont know what it needs!!!
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Johnboy
Premium Member Joined: 10 Apr 2013 Location: Wrexham Status: Offline Points: 4779 |
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Redrat (few posts above) does an exchange service. He has dyno charts to prove their consistency.
You can do your own, but these have been tweaked to optimise their performance. |
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smw
Moto GP Alien Joined: 06 Mar 2014 Location: Notts Status: Offline Points: 1439 |
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Ive sent him a PM already so Im just waiting on his reply. Thanks for the info.
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camngetit
Premium Member Joined: 28 May 2009 Location: nottingham uk Status: Offline Points: 1440 |
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It would I agree but if they colour up nicely that's cool |
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its twins for me !!!!
www.apriliaperformance.co.uk www.apriliaforum.co.uk www.apriliaownersclub.co.uk |
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Johnboy
Premium Member Joined: 10 Apr 2013 Location: Wrexham Status: Offline Points: 4779 |
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redratbike
Moderator Group The Collector Messiah Joined: 07 May 2008 Status: Offline Points: 16146 |
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Ha ha shine off love it!!!!!!,
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www.apriliaperformance.co.uk www.apriliaforum.co.uk www.apriliaownersclub.co.uk |
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426hemi
Premium Member owner of the big bore! Joined: 30 Mar 2012 Location: cannock Status: Offline Points: 5676 |
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Hey cam is all your tool kit pink
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redratbike
Moderator Group The Collector Messiah Joined: 07 May 2008 Status: Offline Points: 16146 |
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www.apriliaperformance.co.uk www.apriliaforum.co.uk www.apriliaownersclub.co.uk |
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Skullface
Premium Member Joined: 12 Jun 2012 Location: Wolverhampton Status: Offline Points: 729 |
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Is that for your Harley.. I bought an industrial shot blaster to get the peened look and a hardened stainless wheel for the benchgrinder for brushed look |
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Johnboy
Premium Member Joined: 10 Apr 2013 Location: Wrexham Status: Offline Points: 4779 |
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Is that for your rat bike ?
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camngetit
Premium Member Joined: 28 May 2009 Location: nottingham uk Status: Offline Points: 1440 |
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All the blokes at work had the other colours and thought no one will nick a pink one honest 😙
Yours looks cleaner than mine . Mine was a quick polish |
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its twins for me !!!!
www.apriliaperformance.co.uk www.apriliaforum.co.uk www.apriliaownersclub.co.uk |
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Fitz
Moto GP Alien Joined: 23 Apr 2010 Location: Harrogate Status: Offline Points: 343 |
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I have the same snap on screwdriver but in black so easily lost while working, should have gone for a brighter colour !! Nice work with the exhaust
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rossie
Moto GP Alien Joined: 05 Jun 2011 Location: Ilpendam, NL Status: Offline Points: 271 |
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So those two little pipes make the brainy thing think there's a twin can exhaust system on the bike? And then what?
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IanG
Premium Member Joined: 04 Oct 2010 Location: N Wales Status: Offline Points: 10725 |
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It breathes as well as a twin set up but without the weight or expense of 2 cans
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www.apworkshops.co.uk
www.apriliaforum.co.uk www.apriliaownersclub.co.uk Looking forward to the next track day |
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rossie
Moto GP Alien Joined: 05 Jun 2011 Location: Ilpendam, NL Status: Offline Points: 271 |
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I WAAANNNTT!!!!
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IanG
Premium Member Joined: 04 Oct 2010 Location: N Wales Status: Offline Points: 10725 |
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Speak to Redrat and then Ed Forza for an eprom and then you too can be empowered.
Seriously,it does make a big difference,it felt like a bigger engine when I did mine,especially if you mod the gearing as well. |
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www.apworkshops.co.uk
www.apriliaforum.co.uk www.apriliaownersclub.co.uk Looking forward to the next track day |
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rossie
Moto GP Alien Joined: 05 Jun 2011 Location: Ilpendam, NL Status: Offline Points: 271 |
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I'll certanly do that. Can't wait. Thanx!
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IanG
Premium Member Joined: 04 Oct 2010 Location: N Wales Status: Offline Points: 10725 |
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I suppose I should have said ' Breathes almost as well as a twin system' before someone with a twin system argues the point
It was done to even the odds when the Apes were racing in some formula or other years back as the later twin system models had an advantage and this redressed the balance. The only difference being I think that the link pipe ran out at 65 or 70mm dia and used a single Akro can of matching bore. |
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www.apworkshops.co.uk
www.apriliaforum.co.uk www.apriliaownersclub.co.uk Looking forward to the next track day |
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redratbike
Moderator Group The Collector Messiah Joined: 07 May 2008 Status: Offline Points: 16146 |
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And you are right a nice big bore link pipe ..I was looking in that pic above of how the link pipe reduces diameter ..that can't be good Here's the blog from the guy that developed it "Here we have an MHP modified OE manifold for an Aprilia RSVR 99 - 02 single sided systems. The enhancements enable the system to improve performance by 15 bhp across the midrange and by upto 3 bhp at the top end, but the benefit is the spread of power across the whole rev range. This manifold was used in the MRO Aprilia Challenge so this enabeled a single silencer to match the capacity of a twin Akropovic system." |
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www.apriliaperformance.co.uk www.apriliaforum.co.uk www.apriliaownersclub.co.uk |
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NickyBoy1984
Moderator Group Exhaust freak! Joined: 24 Dec 2011 Location: Essex Status: Offline Points: 10532 |
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For me...
Akrapovic 2-2 stainless Akrapovic 2-1 titanium BigBore Oh it's so stressful with such choice Hahaa! Seriously though, those modded collectors are the muts nuts! NickyBoy |
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www.rsvr.net
www.apriliaperformance.co.uk www.apriliaforum.co.uk www.apriliaownersclub.co.uk |
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camngetit
Premium Member Joined: 28 May 2009 Location: nottingham uk Status: Offline Points: 1440 |
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I have the titanium Evo can and the link pipe stays the same dia as the exit
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its twins for me !!!!
www.apriliaperformance.co.uk www.apriliaforum.co.uk www.apriliaownersclub.co.uk |
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IanG
Premium Member Joined: 04 Oct 2010 Location: N Wales Status: Offline Points: 10725 |
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There were special large bore Akra's made to utilise the mega bore original modded collectors as I recall.
These are obviously NLA. It would be interesting to fit a large bore link pipe and custom build a large bore can to suit though. |
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www.apworkshops.co.uk
www.apriliaforum.co.uk www.apriliaownersclub.co.uk Looking forward to the next track day |
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IanG
Premium Member Joined: 04 Oct 2010 Location: N Wales Status: Offline Points: 10725 |
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I have to say that looking at that pic I agree with Mark,that link pipe/ can combo looks to be strangling the engine breathing something dreadful.
I don't know were my link pipe came from but it's much larger bore than that Not the best pic to illustrate but it handy |
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www.apworkshops.co.uk
www.apriliaforum.co.uk www.apriliaownersclub.co.uk Looking forward to the next track day |
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kiwi_rsvr
Premium Member EX Dr Frankie Stein (splitter) Joined: 10 Sep 2008 Location: Hockley, Essex Status: Offline Points: 3391 |
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Yuse boyz are missing a bit of info - backpressure.
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www.apriliaperformance.co.uk
www.apriliaforum.co.uk www.apriliaownersclub.co.uk |
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