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Airbox mod.
- Leprechaun
- Squid
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- Joined: Tue May 14, 2013 5:06 pm
- FJRModel: 2018 ES
- Location: Italy
- x 5
Airbox mod.
Sorry if this has been done to death-I'm posting here hoping not to get flamed.
Riding the FJR, I get the feeling that there's a beast under too much control-
I like the smooth acceleration but I always think there's something lacking-namely
the air flow-or is this just an impression. I know that other people have done mods to the air intake-
is it worth doing?
Thanks in advance.
Riding the FJR, I get the feeling that there's a beast under too much control-
I like the smooth acceleration but I always think there's something lacking-namely
the air flow-or is this just an impression. I know that other people have done mods to the air intake-
is it worth doing?
Thanks in advance.
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Re: Airbox mod.
Have you tried a fresh, clean air filter? Makes a big difference, especially on top end.
- Leprechaun
- Squid
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- Joined: Tue May 14, 2013 5:06 pm
- FJRModel: 2018 ES
- Location: Italy
- x 5
Re: Airbox mod.
Yes,I have.With all the different air-filters I've used,I always get the feeling that there's more to
be had from the FJR's en
be had from the FJR's en
- Leprechaun
- Squid
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- Location: Italy
- x 5
- extrememarine
- HMFIC
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Re: Airbox mod.
There has been a lot of things attempted. I'm heading out right now, but when I get home, I can expand on this - I was present when Uselesspickles thrashed his '08 with all the mods and then we ran my bone stock '09 on the same dyno / same day and the power was within one hp of each other...
Ride There!
-Wayne aka asphalt surfer...
IBA#60836
#Peteyismyhero & #JWillywashere
-Wayne aka asphalt surfer...
IBA#60836
#Peteyismyhero & #JWillywashere
- 0face
- Contributor
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Re: Airbox mod.
Do you have a Power Commander? Maybe it's just the delivery of power where you want it?
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Re: Airbox mod.
I don't believe the airbox is a big restriction. Removing the catalytic convertors and Leo Vinci cans made mine spin up quicker into the power band.
If I had a spare FJR cylinder head/throttle bodies/airbox, I would put the system on my flowbench to prove my theories.
Butt dyno says Power Commander, exhaust mods, and unifilter made maybe 3 HP. (I don't believe some of the HP gain claims by others)
If I had a spare FJR cylinder head/throttle bodies/airbox, I would put the system on my flowbench to prove my theories.
Butt dyno says Power Commander, exhaust mods, and unifilter made maybe 3 HP. (I don't believe some of the HP gain claims by others)
- HotRodZilla
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Re: Airbox mod.
You can do the "Cdog air box mod." You basically cut that inner tube down to a nub and then cut a hole on the right side if the air box, inside the other oval locating nub.
Bike will have a different "sucking" sound at full throttle, and may feel like it's getting more at the low end, but other than UP I donno that anyone has actually done accurate measurements.
I did mine and I like it...
Bike will have a different "sucking" sound at full throttle, and may feel like it's getting more at the low end, but other than UP I donno that anyone has actually done accurate measurements.
I did mine and I like it...
- Mroadster
- Squid
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- Location: Melbourne, Australia
Re: Airbox mod.
HotRodZilla wrote:You can do the "Cdog air box mod." You basically cut that inner tube down to a nub and then cut a hole on the right side if the air box, inside the other oval locating nub.
Bike will have a different "sucking" sound at full throttle, and may feel like it's getting more at the low end, but other than UP I donno that anyone has actually done accurate measurements.
I did mine and I like it...
Me too . . .
Cheers . . . Mike
- extrememarine
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Re: Airbox mod.
If you go hunting on the other forum, Uselesspickles spend a good amount of time with his '08 on the dyno. The primary focus was developing the tuning for is AFR Moty EFI controller - think Power Commander. He had the wicky webby air box mod. We ran my bone stock '09 on that same dyno that morning for 3 pulls. We ran his bike with the programmer and air box mods for more runs than I can remember; the reason for the multiple runs was because the AFR Moty had a "learning mode" where it would adjust the fuel tables to tune towards a specific Air / fuel ratio.
Then end result was peak hp and tq numbers for both bikes were with in 1-2 hp & ft/lbs of each other. He had dips in his output curves due to his fueling programming. I'll dig for the the dyno sheets he sent me after the runs when I get a few minutes.
If I remember correctly, he later found that part of the WW mod had came apart and some of the screen may have been ingested by the motor.
Then end result was peak hp and tq numbers for both bikes were with in 1-2 hp & ft/lbs of each other. He had dips in his output curves due to his fueling programming. I'll dig for the the dyno sheets he sent me after the runs when I get a few minutes.
If I remember correctly, he later found that part of the WW mod had came apart and some of the screen may have been ingested by the motor.
Ride There!
-Wayne aka asphalt surfer...
IBA#60836
#Peteyismyhero & #JWillywashere
-Wayne aka asphalt surfer...
IBA#60836
#Peteyismyhero & #JWillywashere