Hi folks,
those who know me from this site know that I have a propensity to mod and try odd things. In doing research recently on the subject of airbox mods/air filters and the like, I ran across a post by a chap who noted that adding a bellmouth to a straight tube increases airflow significantly (seem to recall 30%). In fact, on need only look at aftermarket velocity stacks (such as the billet HPower stacks for the VTR, designed on a flowbench) to see that they virtually all make use of this feature to improve airflow. Anyone who has looked at the stock velocity stacks (a.k.a. intake runners, trumpets,...) know they make a half-ass attempt at best in this regard. As I wait on something promising, my mind has been racing thinking about how to add a true bellmouth to my OEM runners but I came up with nothing of any value. That is, until I played with my 9 month-old daughter this morning.... You see, she has some hard (hollow) plastic rings (stack up on a tapered post, a kids toy)...it was a Eureka moment!!!!! My thoughts are that I will sacrifice one of her rings (already did a quick size test with a spare short runner I have sitting on a shelf, will be good to go), slice it in two and fasten it to the upper end of the runner, thereby creating a true bellmouth. I will glue it on so I can remove it later (or cut it off). It may not yield any improvement but, then again, it may
Will keep you folks posted
P.S. he he
Home made bellmouth :)
Home made bellmouth :)
99 VTR1000F Firestorm, a.k.a. The Carbon Express
Re: Home made bellmouth :)
I agree with Kev, what's are things coming too when you are stealing your kids toys for your bike
Seriously though Micky I like your way of thinking
Make sure you remember to get back with the outcome
Chris.

Seriously though Micky I like your way of thinking


Chris.
Re: Home made bellmouth :)
I am sure my daughter won't miss the one plastic ring. Besides, I am sure she wants Daddy to be happy, not to mention push back the boundaries of knowledge. AS they say, to make an omelette, you have to break a few eggs, lol
99 VTR1000F Firestorm, a.k.a. The Carbon Express
Re: Home made bellmouth :)
Yeah, but when they get older they'll be stealing your bike to play withsirch345 wrote:I agree with Kev, what's are things coming too when you are stealing your kids toys for your bike![]()
Chris.

HIDE THE KEYS!!!
It's not falling off, it's an upgrade opportunity.