I was just wondering, with the position of the stock air intake it seems like it is perfectly placed to link up to a big mouth ram air scoop that could be mounted just under the fairing between the forks. Anybody see or hear of anyone trying something like this for increased Horse Power? I created one for my 2002 Victory V92TC years ago and it worked pretty well once i had it dyno'd correctly using a high powered fan.
RAM Air ?
B-Ruse
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I was just wondering, with the position of the stock air intake it seems like it is perfectly placed to link up to a big mouth ram air scoop that could be mounted just under the fairing between the forks. Anybody see or hear of anyone trying something like this for increased Horse Power? I created one for my 2002 Victory V92TC years ago and it worked pretty well once i had it dyno'd correctly using a high powered fan.
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YEP....I was gonna remove the rubber snorkel and make a fixture to measure airflow on my flow bench, then modify accordingly. I been looking at that thing!
I was also gonna fab a scoop of sorts to guide air in as the opening is not in an the optimum position for a very positive increase in air flow. I seriously doubt the intake is as effective as the ram air systems found on sportbikes but it is a start.
Year ago I personally designed and made ram air systems on non ram air sportbikes, one CBR900 put a spanking to everyone and they swore it had engine werk. boy were we proud!
Another experience was running against a Yamaha R1 which is not r/a with my ZX9 which was. On my dyno both made 135ish peak H.P. but the R1 being 100cc larger made more tork. We did a 3rd gear r/o in which that R1 jumped out and put 5 bikes on me purty quick with it's tork advantage, but as I got into 5th gr I started pulling up and in 6th gr passed him rather smartly! He was surprised and impressed enuff that he designed his own r/a (he werked for SuperBike Mike then). He said it made no difference on the dyno but a rematch later showed the r/a system got his tork out in front even more than b4 but I could not run em down.
I did a r/a on my Chieftain that was so effective it leaned the a/f so much the engine pinged from being lean. Not having wide band sensors at the time I altered my design so that is was a very effective cool air intake.
Lets have fun with this!!!
RACNRAY
I was also gonna fab a scoop of sorts to guide air in as the opening is not in an the optimum position for a very positive increase in air flow. I seriously doubt the intake is as effective as the ram air systems found on sportbikes but it is a start.
Year ago I personally designed and made ram air systems on non ram air sportbikes, one CBR900 put a spanking to everyone and they swore it had engine werk. boy were we proud!
Another experience was running against a Yamaha R1 which is not r/a with my ZX9 which was. On my dyno both made 135ish peak H.P. but the R1 being 100cc larger made more tork. We did a 3rd gear r/o in which that R1 jumped out and put 5 bikes on me purty quick with it's tork advantage, but as I got into 5th gr I started pulling up and in 6th gr passed him rather smartly! He was surprised and impressed enuff that he designed his own r/a (he werked for SuperBike Mike then). He said it made no difference on the dyno but a rematch later showed the r/a system got his tork out in front even more than b4 but I could not run em down.
I did a r/a on my Chieftain that was so effective it leaned the a/f so much the engine pinged from being lean. Not having wide band sensors at the time I altered my design so that is was a very effective cool air intake.
Lets have fun with this!!!
RACNRAY
Ray, I'm following your thinking here and concur.....but I'm wondering if PI designed that 3 pronged rubber snorkel for our bikes to MINIMIZE infiltration of bugs and more importantly RAIN/water!! I ride in the rain as little as possible, but when you're thousands of miles from home and you realize that the rain cloud is following you overhead, well.....you keep riding.....in the rain. I clearly don't want to be sucking rain water into my air filter/engine. I can tell you that at about 12,000 miles I changed the stock/original air filter on my Challenger and it looked like Jurassic park and the Amazon insect park at night in the pleats of my filter.....so I can only imagine how much other "crap" may be entering the air tunnel to the filter with the removal of the snorkel. But that's what's nice about this forum; lot's of different input, scenario's, opinions and results, all of which we all benefit from. Keep us posted on your results. And keep riding hard and having fun!!
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Rain will not be a problem. The Japs have been making r/a assisted skoots since the first 1990 ZX11. I personally have owned SIX r/a skoots amassing about 200,000 miles. Been in torrential down pours where I thought I was gonna die and the only occurrence of rain getting into the engine was a very slight miss. The H2O goes in and out the exhaust, the filter gets wet but also gets dried out too!
There are a few reasons for the snorkel . The restrictive design does a few things. It alters intake"noise" which must be suppressed to an extent to make the skoot meet noise standards as sound measuring meters measure sound and some type and level of intake noise suppression has been incorporated for years in most skoots..
Second and more importantly is that snorkel INCREASES the velocity of the air entering the frame, which is a HUGE plenum chamber.so It helps to straighten out air flow reducing turbulence and a creating more laminar air flow, which makes more power.
I made a forward facing fresh air intake of my own design for my Chieftain and as you found how dirty ur filter was, I can attest the effectiveness of a forward facing intake, and I always see the same on r/a equipped skoots.. I just serviced a GSXR750 @ about 17,000 mls with the original a/f and due to it's factory r/a system the a/f looked it looked like it had 5 coats of paint, rubber, sand and gunk. BUT the back side was clean and thats what matters.
Just a simple scoop may be a worthwhile improvement, I did one on the factory intake openings on the frame of my Chieftain and that brought in it's contribution of debris.
RACNRAY
There are a few reasons for the snorkel . The restrictive design does a few things. It alters intake"noise" which must be suppressed to an extent to make the skoot meet noise standards as sound measuring meters measure sound and some type and level of intake noise suppression has been incorporated for years in most skoots..
Second and more importantly is that snorkel INCREASES the velocity of the air entering the frame, which is a HUGE plenum chamber.so It helps to straighten out air flow reducing turbulence and a creating more laminar air flow, which makes more power.
I made a forward facing fresh air intake of my own design for my Chieftain and as you found how dirty ur filter was, I can attest the effectiveness of a forward facing intake, and I always see the same on r/a equipped skoots.. I just serviced a GSXR750 @ about 17,000 mls with the original a/f and due to it's factory r/a system the a/f looked it looked like it had 5 coats of paint, rubber, sand and gunk. BUT the back side was clean and thats what matters.
Just a simple scoop may be a worthwhile improvement, I did one on the factory intake openings on the frame of my Chieftain and that brought in it's contribution of debris.
RACNRAY
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I have been riding a couple of gas tanks with the snorkel off.
More noise, cannot tel if there is more high speed TQ.
Prefer exhaust noise rather than intake while touring.
RACNRAY I think you are right about the linear flow. Snorkel is going back on.
More noise, cannot tel if there is more high speed TQ.
Prefer exhaust noise rather than intake while touring.
RACNRAY I think you are right about the linear flow. Snorkel is going back on.
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