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Number of drivers extend run of victories at Round Five of the SuperKarts! USA California ProKart Challenge event at Santa Maria Karting Association.
#SKUSA #CPKC #SantaMaria #IAME #Evinco #karting
King of the Streets Heat 2
1. Race Liberante +2.020
2. Jake French
3. Andrew Bujdoso
4. Zachary Schiff
5. Rory van der Steur
6. Billy Musgrave
7. Josh Lane
8. Chase Allard
9. Pierce Baldus
10. Jason Campbell
~Valve action at 14000 rpm~
everything is beyond our wildest illusion... 🙂
P/s: look at 0:58 onwards... valve start spinning... Valve materials integrity & weight is ultra important at high rpm. Any valve float & collapse means severe damage to your engine..
The valves cycle at half the speed of the engine's crankshaft, so at 9000 rpm the valves open 4500 times per minute, or 75 times each second or 13.33 milliseconds!!!
" The peak rpm that we can see here is at 14000 rpm, so the valve will open 7000 times per minute, or 116.66 times per second, or once for every 8.57 milliseconds. So how an F1 engine at 18000 rpm.-just like a strange illusion"
Calibrated by Element115 The peak rpm that you can see here is at 14000 rpm, so the valve will open 7000 times per minute, or 116.66 times each second, or once for every 8.57 milliseconds. So how about F1 engine at 18000 rpm.-just like a strange illusion.
Calibrated by Element115 P/s: look at 0:58 onwards... valve start spinning... Valve materials integrity & weight is ultra important at high rpm. Any valve float & collapse means severe damage to your engine
Frankie Oliva In high school Newton's Laws of motion educated me. In the early 90's the public library educated me about harmonics. I've had a Sprinton Light in my hand in 1995 studying valve spring behavior on theHonda head. In 1996 I was the first to come out with a spring combination for the VTec head using a Japanese outer Type R spring and an Isky inner spring. This spring combination ran the first 9.99 All Motor in 2003 Maryland. I love math and science 😉
It was hard to hold my phone watching this. I thought at any second the valves were going to fly apart. Great stuff.
Valves are designed to spin the why they have a rotor cap where the collets locate and lock on the valve stem, it's is to premote even valve and seat wear
Someone should invent an engine without valves. They could use a catchy name like 2-stroke and then sell aftermarket power bands.
F1 valves "open and close" faster than that as their peak crank rpm will reach 20K. since valve float is IMPOSSIBLE to get away from with mechanically actuated valves (unlike the konisegg stuff or previous M-B efforts in hydraulic actuation), most F1 engines are heavily reliant on port harmonics to create standing waves within the port near the SSR of the apropos port shoulder they're looking to "close".. in other words, small steps are places within the exhaust header to reflect an exhaust pulse at a specific RPM. when that reflected wave meets the incoming pulse from the intake tract, they meet and "cancel each other out", their energies equal and, for a split second, the standing wave segregates the combustion chamber from the port array to allow compression/combustion.
FYI this is the head off the BMW S1000RR during it's R&D stage.
That frame rate though
Would have been nice to have a single white line on the head of each valve just for the visual of valve rotation speed
Alex Buchanan Jonny Forsyth Rob Wilson
Ancient technology. Spherical ball tech should be around but the automakers keep that at bay probably for the reasons we think. And the beauty of that tech is just the rpm rating of your crank. No oil in the upper end of the engine . so oil changes every 30 thousand miles or so. Tests have been done with small blocks and they were able to go over 15 thousand rpms....
Daniel Lunn Troy Lipschinski Jake Clark George Paxton damn watch till the end.
Valves are supposed to spin, nothing new
The whole time I was just waiting for one of the valves to come loose and break XD
Turn down for what...lol
Just think the F1 cars were able to rev to 22k but only hit 18k because of rules!
Pneumatic head FTW!
Fuk thats cool ! 14000 is ridiculous revs though .
Gregg Candy Baden West Lawd Ray Alex Evans Paul Turner
I can see it but still can't believe there is four strokes happening here.It just don't make sense.We took an old Ford V8 took the ons head of and start the motor, I can't remember the revs could not be more than 2000 rpm the pistons were basically stand still on top.Two stroke makes sense but 4 stroke.
Ben Young Alessio Gallo you guys will like this .
Jase David Ash
Nick Aegerter Ravi Gattamaraju Chase Allen Billy Stewart III
Travis I read about that technology years ago and was amazed by it. So simple and so effective. It sucks we have the big carmakers keeping things like this out of our reach.