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Go Back   FZ1OA Message Board > FZ1 & Fazer Owners Association > Exhausts, Carburetion & Performance > Gen 1 Exhausts, Carburetion & Performance

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Old 07-19-2005, 12:04 AM   #21
aussie
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Quote:
Originally posted by taserboc
Would you recommend this simple air box mod if you just want to install a K&N air filter? Wouldn't I benefit from a bit more air in the box?
WHat else has been done to your bike. Full exhaust, jet kit, timing advancer?
Unless you are putting in Ivans MB jet kit then I wouldnt put in the K&N or modify the air box. This particular bike sees no benefits from the installation of a K& N alone.
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Old 07-19-2005, 03:09 PM   #22
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No other engine mod beside the K&N, yet. Thanks for the heads-up. Maybe I'll look into the mods like the jet and timing advance shortly.
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Old 07-19-2005, 07:58 PM   #23
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Old 04-07-2006, 07:22 AM   #24
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updated info on airbox mod

blueballs/mikegtx/others-
would anyone pipe in here with a little more info on airbox mod? have the install/mod done, actually retuned a bit last night, but have question that is only evident in the pics from blueball's box mod. he's showing the 'snorkel' tube cut down to 23mm overall height, while pics in other boxes and what you can see from info in ivan's mb kit instructions, doesn't show this either clearly or having been done. three points: from where on the airbox is that 23mm measured, as there are several different levels from which to measure? two: should the snorkel reach down inside filter and block front wall of filter or be cut back enough to barely reach inside? three: blueball's mod shows the ribs having been entirely removed, except behind the stack. correct or no?
know this is all just further refinement, and though these are best pics of box mods i've seen on site, still some unanswered questions in my mind. your collective wisdom always appreciated...comments? better pics?
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Old 04-07-2006, 11:00 AM   #25
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Quote:
Originally Posted by bbneuser
blueballs/mikegtx/others-
would anyone pipe in here with a little more info on airbox mod? have the install/mod done, actually retuned a bit last night, but have question that is only evident in the pics from blueball's box mod. he's showing the 'snorkel' tube cut down to 23mm overall height, while pics in other boxes and what you can see from info in ivan's mb kit instructions, doesn't show this either clearly or having been done. three points: from where on the airbox is that 23mm measured, as there are several different levels from which to measure? two: should the snorkel reach down inside filter and block front wall of filter or be cut back enough to barely reach inside? three: blueball's mod shows the ribs having been entirely removed, except behind the stack. correct or no?
know this is all just further refinement, and though these are best pics of box mods i've seen on site, still some unanswered questions in my mind. your collective wisdom always appreciated...comments? better pics?
I modified my airbox last week. I used Paveslave's pics as a guide, along with the pic I got with Ivan's MB kit. I did not cut the 'snorkel' to 23 mm. I left it as standard. I did not smooth away all the 'ribs' on the intake cover either - just enough to let air in. To be honest, my finished airbox did not look as smooth as Paveslave's. It works well though. 141.4 BHP and over 78 lbfts of torque. Sure I smoothed some edges but not to the degreee as in the photos. The photo I got with Ivan's MB kit showed no mention of a 23mm height.

The main objective here is to get rid of the section of the snorkel that sits towards the front of the bike, allowing air in and straight through the filter - and not bouncing around inside a plastic snorkel.

Ferg
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Old 04-07-2006, 11:32 AM   #26
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blueball's photo of airbox

fergus-
look up in this post a bit for photo of blueball's airbox-it's devoid of ribbing on side of snorkel opening and he shows to trim to 23mm in same post. just not sure if that's a valid instruction from ivan directly or just an estimate of what it takes to avoid having any more of the tube interfere with airflow inside filter, without eliminating it entirely. yeah, mine looks a lot like paveslave's as well. know i'm splitting hairs, but sometimes that's what it's all about, eh?
by the way, nice dyno charts on your mods. i've done exactly the same, except with the addition of full muzzy. no dyno results for myself, but it's getting to summer temps in south texas already(mid 90's today) and always a lot of humidity, so pretty sketchy results in testing. and where the hell is ivan? has he been 'banned' or taking a 'leave of absence' on his own. miss the commentary and solid advice.
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Old 04-07-2006, 12:25 PM   #27
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Quote:
Originally Posted by bbneuser
fergus-
look up in this post a bit for photo of blueball's airbox-it's devoid of ribbing on side of snorkel opening and he shows to trim to 23mm in same post. just not sure if that's a valid instruction from ivan directly or just an estimate of what it takes to avoid having any more of the tube interfere with airflow inside filter, without eliminating it entirely. yeah, mine looks a lot like paveslave's as well. know i'm splitting hairs, but sometimes that's what it's all about, eh?
by the way, nice dyno charts on your mods. i've done exactly the same, except with the addition of full muzzy. no dyno results for myself, but it's getting to summer temps in south texas already(mid 90's today) and always a lot of humidity, so pretty sketchy results in testing. and where the hell is ivan? has he been 'banned' or taking a 'leave of absence' on his own. miss the commentary and solid advice.
Do you have the intake boots ported ?. If not, you will need to do this. This is what ( I reckon) has helped give me some of the extra power higher in the rev range (> 5000 rpms) over a standard slip-on system.
My set-up may have the advantage over yours in the lower evs, but once 'on-pipe', yours should pull hard and strong too. Once everything is set-up accurately ( float heights, fuel screws etc) it should run really really well.

Ferg
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Old 04-07-2006, 12:35 PM   #28
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ferg-
yes, boots ported. but like the airbox, could probably use a little extra trim here and there. never overly excited to pull carbs, but it's getting easier with familiarity. screws 5 perfect turns out. floats near to 14.5 as i could get to. not sure how our extreme heat/humidity will affect the tune settings, but may fool with it this summer. tps set per ivan's recs. trying to get it all set for first track days, so do want it to be 'spot on'. right now, runs really, really well. always want to see if there's another n'th to get out of it. thanks for your feedback. it's friday, time for a good porter to ease effects of the heat.
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Old 04-07-2006, 12:47 PM   #29
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Quote:
Originally Posted by bbneuser
ferg-
yes, boots ported. but like the airbox, could probably use a little extra trim here and there. never overly excited to pull carbs, but it's getting easier with familiarity. screws 5 perfect turns out. floats near to 14.5 as i could get to. not sure how our extreme heat/humidity will affect the tune settings, but may fool with it this summer. tps set per ivan's recs. trying to get it all set for first track days, so do want it to be 'spot on'. right now, runs really, really well. always want to see if there's another n'th to get out of it. thanks for your feedback. it's friday, time for a good porter to ease effects of the heat.
For what it's worth, my screws are 4.75 turns out and floats are at 14.0mm exactly. TPS as per Ivan. Sweeeeeeett !!!

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Old 09-16-2006, 09:35 AM   #30
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I prefer the depth of the remaining snorkel be left at the stock length.

The idea behind this mod is to allow a straight path for the incoming air and for helping the returning resonant waves to be directed out the intake the same way that they went into the engine.


For whatever it's worth ....



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Last edited by Ivan; 09-16-2006 at 10:19 AM.
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Old 06-08-2007, 04:16 PM   #31
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so am i to understand that you remove the material on the underside of the airbox and not the inlet???
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Old 06-08-2007, 10:45 PM   #32
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That's right.

The only cutting and shaping required is to the snorkel inside the airbox lid.

The scoop on top of the airbox lid remains standard.

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Old 05-04-2008, 04:03 PM   #33
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Quote:
Originally Posted by DaveNC
Here a picture of what I did. I hope it's right.

DaveNC
what if one was to run the cover like this...with the hole all the way through, any benefit?
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Old 06-15-2011, 05:58 PM   #34
02fazer
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I ordered ivan's MB jet kit kit planning to install tomorrow when it comes, so tonight I decided to tear it apart to find that my airbox is already modded scares me that it might already have his kit installed.... atleast I can clean it up
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