My neighbor has one of those things sitting in his driveway... Don't get all elaborate before you get it right the first time. I'd love for someone to improve on it. Don't restrict the air, that's not the purpose. The effect will be the same but it will cause a fall off above whatever. ?? Think more along square inches. It's a fine line but decreasing volume and restricting is not the same thing. Every time air enters a large space it slows down. My idea is not to have any large empty spaces but the right size intake tract. If I spend some time, I could come up with the exact size in sq In . A high speed air mass has inertia. So... Have you seen any of those trick after market truck intake systems ? Same idea. With a bike, we don't have the luxury of space to work in. Have to change what we have. I recorded my 700 today. Have to edit and convert the file. Post it later tonight.
--- On Sat, 9/5/09, Kyle Munz <[email protected]> wrote: From: Kyle Munz <[email protected]> Subject: [Nighthawk Lovers] Re: dixie cup revisited To: [email protected] Date: Saturday, September 5, 2009, 9:33 AM A buddy of mine (rx-7 driver) is suggesting I cut flaps and use two cups, a smaller one inside a larger one so I'd have one for low speeds and another for high speeds. Kind of like the complicated setup mazda had on it's 90s rx-7s, the setup that killed that car in the american market. I'm going to try trimming it down just a tad, I was also thinking about possibly using varying amounts of tape across the opening of the cone? Would that have the same effect? -Kyle -Sent from Houston, TX, United States On Sat, Sep 5, 2009 at 12:19 AM, Dennis Hammerl <[email protected]> wrote: I want to record my VF1100 too, a very nice sound. Shorten by about 1/2~3/4" I think your burble will still be there but there will be some changes. I have to look for some charts I have on the dynamics of carburation. It shows what is being used at different throttle openings. --- On Sat, 9/5/09, Kyle Munz <[email protected]> wrote: From: Kyle Munz <[email protected]> Subject: [Nighthawk Lovers] Re: dixie cup revisited To: [email protected] Date: Saturday, September 5, 2009, 12:56 AM I don't have any fancy recorders, just my mp3 player. I'll try putting the stock air filter back in and recording that at the same RPMs for something to compare to. I'll also try cutting the cup around the top to make it shorter, and narrower so it will go deeper into the cone. -Kyle -Sent from Houston, TX, United States On Fri, Sep 4, 2009 at 11:21 PM, Dennis Hammerl <[email protected]> wrote: After looking closely at the photo and listening to the audio file, I conclude the cup is too tall and blocking some of the inlet. Try a smaller (shorter) example. I have to record mine and submit the file. Sounds way different than yours. Unless the recording setup rolls off at the bottom. ?? What did you use ? I'm going to use a portable studio cassette recorder and convert to m...@160 BR It's a setup I used for broadcast FM years ago. ('06) Studio grade mike and recorder. Our budget didn't stretch far enough to use digital. Check the jet sizes anyway. Leave no stone... or it it stoned ? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en -~----------~----~----~----~------~----~------~--~---
