| Author | Message | ||
     Revperf |
  Last of the critical, none in existem components for the world's most bad-a$$ leaf blower. | ||
| Gentleman_jon |
Just wondering if they look a bit like this when the lights are on?   I wanna get one of those leaf blowers, that's for damn sure!  | ||
| Firemanjim |
DROOL  | ||
| Bluzm2 |
Wow!!!! Cool stuff Brian! | ||
| Revperf |
They were kinda dark weren't they. Let me Photoshop them and I'll be right back. Hey Bluz - We never did get to visit. Call me when you get a chance. 866-892-2109 | ||
| Revperf |
  Try this | ||
| Glitch |
Works of art! | ||
| Leftcoastal |
Picasso, Matisse - they got NUTHIN on YOU! Are the cylinder studs exposed on the lower part of the barrel? if so, that will look really cool! Those must be for the LSR bike, right? AL | ||
| Diablobrian |
those are BEAUTIFUL  | ||
| Blake |
That's too frightening looking to be art. Are you sure those things don't violate some kind of WMD treaty or something? | ||
| Glitch |
That's too frightening looking to be art. Art can be very frightening! | ||
| Revperf |
These are, in fact, base bolt pattern cylinders. They are very, very cool pieces. Alot of people don't know that we can nic-a-sil iron as well as aluminum. With the boost pressures that the fireman is going to run for how long he is going to run it they needed to be some pretty sturdy pieces. We are actually going to subject these to a new process that further assists with lowering the parasitic loss from ring drag. Heads flow 370 cfm at .650" at 28" of water. Very bad boyz. We feel very fortunate to be working with the Higg-man on this project as we are able to do some really cool stuff. | ||
| Roc |
Awesome! | ||
| Diablobrian |
Yikes! keep everything that isn't nailed down away from the intake! Looks like the effort is no-holds-barred (just the way racing should be)  It will be interesting to see what kind of numbers the bike puts up. | ||
| Rocketman |
I think I need to be a Californian firefighter. Heads flow 370 cfm at .650" at 28" of water. Brian, can we have that in English? Say 10" or 12" of water? Why do you use 28" for these heads? Very mean looking stuff. They look very fast just standing still. Rocket | ||
| Roc |
For 16 pounds of boost? | ||
| Pammy |
Brian, There is some other stuff I would suggest for your project. Might make things hold up better. You may already be on it.... Call me, if you are interested. It is stuff we did to Aaron's 200 MPH Bonneville bike, and look how long the bottom end of THAT bike lasted. | ||
| Revperf |
There is some other stuff I would suggest for your project. Might make things hold up better. You may already be on it.... Call me, if you are interested. Always. I'll holler at you first of the week. BN | ||
| Revperf |
Roc - North BN | ||
| Rocketman |
Heads flow 370 cfm at .650" at 28" of water. Please explain the math if you have time Brian. What is the water equivalent to? TIA Rocket (Message edited by rocketman on October 21, 2006) | ||
| Ceejay |
28" of water is 1 ATM or 760 torre if I remember right. | ||
| Revperf |
Without getting too deep into a physics lesson regarding flowbench operations. There is a liquid manometer on the flowbench that relegates the amount of negative or positive pressure to the height of the liquid in the manometer. Higher the liquid the more pressure is being exerted on the port. There is another manometer that gives you a percentage of airflow through the port compared against the calibration plate that is used with the flowbench. From that point on the microprocessors equate it to cfm. In the old days we had to figure it with a calculator against a base standard. Now the Flocom does it for us. Nice. Some people flow heads at 10" which is the way I used to do it. It still has its place when you are testing for low lift, low velocity turbulence. Once you get into big air situations like this though the higher pressures tend to keep you from chasing your tail. There are benches that will pull more than my SF600 but she does alright. Pammy and the crew use the next size up. Bear in mind though, flowbench testing is somewhat relative to the addage "You started here and you ended here." The magic comes in to getting as much as you can with the least amount of port volume. }A trash can with the bottom knocked out will flow a bunch of air but that doesn't make it a good port - Byron Hines | ||
| Rocketman |
So is there a way / formula (or is it not relevant / possible) to compare the above figures with 10" ? Rocket | ||
| Jlnance |
So is there a way / formula (or is it not relevant / possible) to compare the above figures with 10" ? Rocket, no it isn't possible. It's a fluid dynamics problem, and those are notoriously non-linear. Non-linear being a mathmatical term which can roughly be translated as PITA.  | ||
| Revperf |
I will post them Monday. C-YA! | ||
| Captpete |
Just bite the bullet, Sean. Those heads will eat yours for lunch.  | ||
| Rocketman |
And they're worth more than my Buell, lol. Just curious as to how the water lift worked against air flow. I guess the only way to compare how much volume those fancy heads flow is to measure a set of well flowed 'normal' heads at 10", then measure them on the water lifter too. Rocket | ||
| Pammy |
"A trash can with the bottom knocked out will flow a bunch of air but that doesn't make it a good port - Byron Hines" Damn skippy! That's why we map the ports as well. We can map the velocity in any given spot in the port. There is a near infinite number of changes that make huge(or not so huge) differences in head flow and the subsequent value as a result. It's pretty darn interesting and never ending. Wes is constantly researching and trying new things. | ||
| Pammy |
There is a great deal to learn about swirl and tumble as well. | ||
| Glitch |
Hey Pammy, does Wes let you use the Man-O-Meter?  | ||
| Pammy |
I don't touch Wes' machines. I have my own Man-O-Meter....who wants to be measured up?  Wes' machine is computerized, digitized, synthesized and mesmerized.....It doesn't have a real monometer on it. It's the big mamma-jamma(technical terminology, of course)SF1020, the same deal the Nascar guys use. One of these days I will have to get a video of all the steps Wes goes through to develop a State of the art head port. The shape is the most important aspect. We do alot of welding and reshaping over here. | ||
| Captpete |
One of these days I will have to get a video of all the steps Wes goes through to develop a State of the art head port. Yeah, right. That'll be happpening. At least you gave us a clue mentioning the big mamma-jamma. I think we just been mamma-jamma-ed. | ||
| Pammy |
I could make a video with a bunch of little blurry spots in critical areas... It could happen. signed, M-J | ||
| Revperf |
QOTU - Haven't had time to call you yet. Wintertime is upon us and things have being revvin' up. Will do though. BN | ||
| Oldog |
Pammy you never cease to amuse... Jlnance did you mean 30" of mercury = one atmosphere, = 14.7 psi = 33.95 FEET of water collumn?? 370 cfm that is a lot of bloody air ...... through a little bitty hole ..... real quick like ..... | ||
| Firemanjim |
You boys need to remember we are not depending on atmosheric pressure to fill these cylinders. I have this purty Garrett GT ball bearing turbo gonna huff and puff and stuff them cylinders. |
