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Old 11-13-2012, 09:36 AM   #1
bjohn07
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air box mod worth it on tl1000s

i got a 97 tl1000s. just thinking of more mods i can do to it while its cold.
so how beneficial is the removing the flapper from the airbox mod.
just trying to see if the benefits are worth the work. if gains dont exceed at least 8hp or ft lbs i dont see myself doing it at all since im not gonna be taking this bike to the track.
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Old 11-13-2012, 10:35 AM   #2
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Re: air box mod worth it on tl1000s

I don't know about the others but for me the gaines where not hp but rather a smoother and more normal shifting ''less on-off jurking at small thottle opening''.
But that's me.
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Old 11-13-2012, 11:25 AM   #3
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Re: air box mod worth it on tl1000s

Hmm. If mine has the jerking problem i dnt notice. Been doing some searchin on it and looks like everyones gains are different. Might have to leave it alone for now.
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Old 11-13-2012, 12:09 PM   #4
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Re: air box mod worth it on tl1000s

I did mine in expectation of what's to come in the future...the more air you can get into and out of a engine the more horses it will make...which is why I also got a fullset and k&n airfilter...
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Old 11-13-2012, 12:54 PM   #5
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Re: air box mod worth it on tl1000s

Pick up a spare airbox and do the mod, that's what I've done, it'll be going in the rebuilt bike
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Old 11-13-2012, 01:43 PM   #6
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Re: air box mod worth it on tl1000s

http://www.tlzone.net/forums/bike-pi...ml#post1705683

BTW its very unlikely a K&N will flow better than a factory element

its just reusable
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Old 11-13-2012, 01:54 PM   #7
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Re: air box mod worth it on tl1000s

This bike had a k&n already.
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Old 11-13-2012, 02:15 PM   #8
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Re: air box mod worth it on tl1000s

Having had a few bikes with forced air induction, when you look at the tls airbox it surprising how well it runs considering the poor design,and relatively small size, so anything that improves the airflow has got to be an improvement,

If your unsure, just get a pen and paper and draw the flow of air, far too many turns and too much turbulence in the airbox
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Old 11-13-2012, 03:46 PM   #9
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Re: air box mod worth it on tl1000s

well just pulled the air box out. so do i need to completely remove the flapper or can it just be gutted and the housing left in place to fill the hole?
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Old 11-13-2012, 04:17 PM   #10
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Re: air box mod worth it on tl1000s

got a better look at it. all i did was remove the plastic flapper, pull out the actuator valve, cut the thin rod with the hook on the end that control the flapper. and put the actuator housing back in to cover the hole and plugged the vacuum line that connected to it. man that was way to easy. i thought it would have took me longer than 15 min. which is why i was hesitant about doing it.
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Old 11-13-2012, 06:53 PM   #11
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Re: air box mod worth it on tl1000s

Go to SteveTLS page and get the run down on what you need to do .It's fairly easy and "I think " a worthwhile mod .
I just used a bit of aluminium ,silicon ,and a dremel .
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Old 11-14-2012, 01:32 AM   #12
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Re: air box mod worth it on tl1000s

http://wotid.com/tls/component/optio...per/Itemid,38/

Enjoy the read
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Old 11-16-2012, 12:29 PM   #13
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Re: air box mod worth it on tl1000s

You should do a lot more to get much benefit. The cross-over intake on one side is very restrictive, if you plastic-weld on an exterior flange and lace it up with some safety wire you can flow much more. You need to remove the transfer port that the flapper was in, at a minimum. You should remove the actuator and saw out the entire area, and plastic-weld in a larger curved cover over that area. Then consider cutting open the entire area between the lower and upper boxes, which then requires a new filter arrangement. On a stock '97 with an exhaust system I figure I got several hp, but mostly I got a lovely intake growl and much better throttle response. Good luck. Remember the flapper and transfer ports surrounding it is mostly a noise-reduction system. The TLS airbox ideally needs ot be much bigger and flow much more air with fewer restrictions and turns.
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Old 11-18-2012, 08:27 PM   #14
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Re: air box mod worth it on tl1000s

I noticed better throttle response around town and out on the road. Thought it was a worthwhile mod.
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