I guess its been in a thread earlier but I cant find it....
Will I get any powerupgrade changing my oem air filter to a KN-filter.
My bike is stock with yoshimura tri oval without the quiet-baffle. I have an underderstanding that the effect is different between different modell and type of bikes but what about the/my GSX 1400?
just for info
a k&n filter actually flows less air than a standard suzuki air filter proved on dyno tests a good few years ago.
k&n is a great filter as can be cleaned and re-used many times and that has many advantages but if you want max airflow use a standard airfilter
you exhaust will add a few bhp but there is a restrictor in the link pipe as well.
you can get a unrestricted aftermarket replacement but can't remember who makes them
:cheers:
Exactly as Stim says, K&N has the advantage of being able to be cleaned but will not give any improvement in power, the stock filter is actually slightly better.
Quote from: gsxbarmy on Sunday, 18 June 2017, 06:05 AM
Exactly as Stim says, K&N has the advantage of being able to be cleaned but will not give any improvement in power, the stock filter is actually slightly better.
"Stim"? There's a name we haven't see for a while. Thought you'd lost him Dave?
Thank you for answer. Case closed. I am not gonna buy KN-filter.
K&N filters are OK but not great IMO.
In some independent tests they haven't scored that well.
Modern airbox's are normally well designed and flow fine. I don't see having better flow through the airbox with any filter a big deal when the 14 has small injector body's feeding the motor, more so if your running factory exhaust headers and collector.
Paper air filters for me. Drop old one in the bin, clean brand new one in the motor every time. Same for oil filters. Can't be arsed with the time, effort, chemicals etc to clean resusable air / oil filters for a very questionable gain.
Quote from: KiwiCol on Sunday, 18 June 2017, 06:50 AM
Quote from: gsxbarmy on Sunday, 18 June 2017, 06:05 AM
Exactly as Stim says, K&N has the advantage of being able to be cleaned but will not give any improvement in power, the stock filter is actually slightly better.
"Stim"? There's a name we haven't see for a while. Thought you'd lost him Dave?
Where on earth did that come from? Jeez the heat today must have got to me........ (Sorry Seth)
So given that, does anyone know how the BMC hi flow air filter rates in comparison to standard? Been told they breath better than K&N.
I've only ever seen the comparison between k&n and standard .
but as tony says it's really the airbox that makes the difference and fitting a new filter will be better than an old old.
i use hi-flow air filters on the standard bikes and don't notice anything different from using standard filters
i have pod filters on the tuned bike and even that made very little difference +1/2bhp .
so mext restriction is the throttle bodies . :cheers:
Its a very good point regarding small injector bodies. I've stuck to the paper ones for same reason Tony has, they do the job well and its just easier with the swap over.
My bike's last owner installed a BMC filter, recently I took it out for cleaning, here are some photos of the filter:
01.jpg : when the filter was used for 1K-2K KM (I guess/ when I bought the bike):
02.jpg : when used for around 6000 KM (some dust/dirt was there )
03.JPG & 04JPG: just clean up by using the cleaning kit and sprayed the regenerating fluid (not absorbed and not wiped the excessive yet)
05.jpg : ready to work
My experience is the cleaning process was quick and the re-oil process was easy, but needed to wait for the regenerating fluid to absorb (30mins the manual said, I waited for a day).
What I like is that I can clean it as frequently as I want, eg. per 5000KM with the motor oil change, also the cleaning kit was not expensive.
After installed back I can felt the difference immediately, although at most it should be as good as / near the new original paper filter (I have not tried that).
I thought if I clean it per 5000KM(or more frequently), it can keep it's peak performance and will out perform the paper filter after several thousand km. (Although I have no test on that :cool:)
I'm interested mate, what difference could you feel from the clean?
Your filter looked pretty clean to me prior to cleaning anyway - could be just the pic though.
Quote from: KiwiCol on Saturday, 01 July 2017, 05:25 AM
I'm interested mate, what difference could you feel from the clean?
Your filter looked pretty clean to me prior to cleaning anyway - could be just the pic though.
Hi KiwiCol, I think it's not magical but when using a clean filter the engine just response better to every throttle input and perform more lively. :clapping: :clapping:
However I heard that the original paper filter can provide better filtration than reusable filter in dusty condition.
Ok, Thx for that. My paper filter looks pretty clean, but maybe it's time I put a new one in.
someone say this :) :
http://www.motorcycleproject.com/text/powersports_air_filters.swf
https://www.bobistheoilguy.com/airfilter/airtest3.htm
just for info
back on the old org years ago someone did a back to back comparison of filters on a gsx1400 on a dyno .
a K&N filter actually flows less air than a stand suzuki filter .
only advantage is you clean and reuse them if you can put up with the hassle but new filters are cheap enough to throw away every service.
:cheers:
:cheers:
It's a shame you can't still get the proper K2 filters. They had a wider inlet & a shorter trumpet inside so would flow more air. All the pattern parts are the later type & the genuine ones got superseded too. Somewhere I've got the sizes measured up, but it works out to about 25% less intake area on the later ones and that's before you allow for the longer restrictive trumpet.
My bike has got a touch slower since having to fit a later one, but the correct one had done 50k & was rusty so needed to come out.
20 yrs ago my boss had turbo diesel pajero, k&n filter fitted. had been cleaned/serviced a few times. the foamy stuff got sucked into motor, wrecked the turbo. always been a new paper on everything since then for me. i buy quality ones from poland for 14, very well priced. will post link if anyone interested.
Yes, please post the link. Thanks
Me too. :onya:
these people sell everything, have a trawl thru. amazing. my air filter i got around 4 yrs ago, never a prob. was less than 20 bucks landed. must look for the spare, somewhere in shed. http://www.ebay.com.au/itm/KR-Luftfilter-Air-filter-SUZUKI-GSX-1400-GSX1400-02-07-/160880859473?pt=DE_Motorradteile&hash=item25753f1951
K&N filter flows better than original when you grind that intake hole a little bit bigger and smoother. 55.5 mm vs 48 mm in original..
All that black "shit" came during one summer ( about 10 000 km).
I will look at that tomorrow.
There's mine after today.
K&N 52mm intake standard 48mm.
Washed in metho about 50cc.
Have washed this filter about 6 times and there is no signs of it deteriorating. Takes about 2 minutes to do.
I dont use oil, but obviously it is catching crap.
Every time I clean it the bike definately tips in far better in the twisties.
Bloody hell
Just made more room for some of my stuff
I have just ordered myself a new air filter after seeing that.