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Gen2 Airbox kit, do they really work? |
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Horseheed
Premium Member Joined: 23 Mar 2017 Location: Durham Status: Offline Points: 163 |
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Posted: 25 Nov 2021 at 16:37 |
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Hi All, can any one please tell me do air box kits on Gen1/ Gen2 really work or is it a bit of a myth/ pros. & cons. Cheers
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Spoonz
Admins Group Joined: 11 Feb 2008 Location: North Devon Status: Offline Points: 10726 |
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Depends what u mean by work. I’m not a fan personally simply because they generally seal poorly. In terms of power there are conflicting dyno runs that sway either way and it depends what other mods are used in conjunction. Had my current bike not come with it, I wouldn’t have fitted one even if I was convinced I got a hp or 2. A pc3 and mapping or a modded collector is a different story.
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Stevex
Moto GP Alien Joined: 05 Jul 2016 Location: UK Status: Offline Points: 1333 |
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Haven't tried one tbh, but I know the modded collector, FR200, Giannelli can and 15/43 produces more than enough power for my Gen 1 T.
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People say I don't know Jack Sh1t; but I do, he lives next door.
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constant
Premium Member Joined: 27 Jun 2014 Location: south london Status: Offline Points: 1060 |
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indeed if you are after more pock go with what stevex has
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snowman
Premium Member Joined: 27 Oct 2010 Location: Romsey area Status: Offline Points: 1385 |
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Don’t think it’s needed for road use ,but what do I know
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blacklines
Moto GP Alien Joined: 08 Jan 2018 Location: Yorkshire Status: Offline Points: 1060 |
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There was this from Micah on AF1. Will have to go to the link below if you want the dyno charts. "So while not from a 98-03 bike this was a series of tests I ran, on the same day, fuel, dyno, bike, etc....of intake mods. I never really like bragging about this due to obvious reasons when you look at the charts... Graph one: Tuono, dead stock including pipes, 07.5 model. One run (less midrange by micro amount) is dead stock airbox with choker removed and stock air filter, the other run is EVO airbox with stock air filter...this will be explained shortly.... In this test the stock airbox was used with the choker removed. The only difference between the two runs is the air filter, same 07.5 Tuono. The LOWER peak power run has a K&N filter installed, no matter the type, BMC/UNI/ETC results were same so I just chose an easy to use graph. That's right, the K&N filter makes less power in this case, no sh*t, so how much restriction is the stock filter causing...up to you on filtration, I like really clean f**king air in my motors: Here is the same bike again, testing how much restriction the "choker" actually made on an otherwise stock machine...not much huh? Same bike, same day, fuel and dyno again....the red line is stock airbox with stock filter, the green line is EVO airkit with stock filter and the blue line is EVO airkit with EVO filter (BMC in this case)...interesting huh? Now for the best part...or worst part if you live in a hellishly hot place with traffic. This was a simple re-test using a Renegade Style kit built for me by Evoluzione Cyclesports for testing, IF the tank was raised and one cooling fan was dedicated to keeping as cool as possible intake air temp the run was only slightly lower across the board than the stock intake system, like .5-3bhp total margin. This was with the tank closed down as it would be in normal riding and with the dyno fans being used for the their intended purpose, keeping coolant cool....would I run a pod filter kit on MY bike, sorry but I think not. It did sound f**king awesome though! This is from my 1999 Mille with nothing more than an eprom and a slip on for mods. This graph while looking like three lines actually has 4 curves on it. Stock air filter, BMC air filter and NO air filter in stock airbox, the line above the rest is 130mph of ram air into the intake runners...proving it works very well. I hope this helps clear up some confusion. I understand that it will do little to sell more sh*t for us here at AF1 other than stock filters but I think this sort of needs to be rethought, if you are putting real miles on your bike you might want to consider stock airbox and filter. I would say it is very hard to beat. I have plenty more graphs to drive the point home but these are all I am going to post since my time is rather limited and it is 105F inside this f**king room right now! https://www.apriliaforum.com/forums/showthread.php?252700-Air-box-setup-for-the-Mille&p=3143197&viewfull=1#post3143197
Basically the renegade style is a huge step backwards from stock. The evo style is almost as powerful as stock, but has the risk of dirty air coming in like Spoonz said. From what I've seen it's not until you're getting into SBK level engine mods where people start seeing a benefit rather than a performance cost. Basically Aprilia did pretty well with their own R&D. |
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Owen
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Stevex
Moto GP Alien Joined: 05 Jul 2016 Location: UK Status: Offline Points: 1333 |
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Forgot to add that I'm running oem air filter with a big boot.
The biggest difference, seat of the pants wise, you'll notice is the gearing changes. I've run 15/43 since I bought my current Aprilia because they came fitted, but top end doesn't really interest me too much, especially where I do nearly all my riding ( NY Dales / Moors), so this winter I'll be going 15/44.
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People say I don't know Jack Sh1t; but I do, he lives next door.
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camngetit
Premium Member Joined: 28 May 2009 Location: nottingham uk Status: Offline Points: 1440 |
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Ineresting read but does it make any difference with the fr200chip fitted to allow for more air
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its twins for me !!!!
www.apriliaperformance.co.uk www.apriliaforum.co.uk www.apriliaownersclub.co.uk |
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blacklines
Moto GP Alien Joined: 08 Jan 2018 Location: Yorkshire Status: Offline Points: 1060 |
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Not really. Think FR200 is for the modded collector. Which apparently does make a big difference.
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Owen
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legend88
Premium Member Joined: 18 Aug 2013 Location: Newcastle Status: Offline Points: 6598 |
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There are two settings on the FR200, one for the modded collector, open can and EVO airbox and one for the modded collector and can with standard airbox.
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WallyB
Moto3 racer Joined: 27 Nov 2015 Location: South Lakes, UK Status: Offline Points: 43 |
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I have a 2001 Falco, Large air intake, open airbox, K&N filer, Beowolf Cans, adjustable fuel pressure regulator and a Factory Pro chip. No flat spots and showed 130 on Dyno. The intake noise is addictive. The main thing to remember with any mods on these older bikes is they don't have any form of self tuning. If you let more air in then you will loose power unless you put more fuel in. If you let the exhaust flow better chances are you will get more air in so you will need more fuel again. Similar with Power Commander, my view is if the chip is mapped correctly there is no need for the PC, but it can be useful for correcting changes which haven't been mapped for.
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Spoonz
Admins Group Joined: 11 Feb 2008 Location: North Devon Status: Offline Points: 10726 |
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Power wise I doubt most will see much difference between eeprom or pc3 if both are well mapped as you say. If it’s an off the shelf eeprom it will never be quite as good as a custom eeprom or pc3 map even if the mods exactly match the suppliers bike. ( potentially different plugs, fuel octane, engine condition, climate, altitude etc etc ) Not personally convinced that even with the mods generally used on the road that the stock airbox doesn’t flow enough air. Hence why Micah saw no gains with various setups because whilst the open airbox setup has more flow potential, the engine didn’t need it. The devils in the detail of the design I guess but the poor sealing of some setups also means lower airbox pressure and dirty warm air drawn in from around the tank. Warm air, lower density = less power and so on. For a highly modded race/track bike like the wsb bike the idea was taken from that lives at high speed and high revs I can see a benefit. From a noise point of view I guess that could be reason enough considering most exhaust cans are bought with noise as their msp.
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