Ceramic Coated Pipes
#16
Believe me, as competitive as RC is, someone would have made one if there was any benefit. Believe it or not, our pipes are actually very well designed and in principal, identical to those plane and boat pipes you love so much. Merely adapted for our needs in terms of displacement, powerband, rpm and rules.
#17
Also, boat and plane motors don't run more RPM then we do. Here is a dyno run of a boat motor.
http://rcboat.com/dynoind.htm
Notice it makes peak power at about 23,000. Ours usually make peak power at at least 26,000 and some go even higher. Plus we need them to continue to make decent power all the way up to about 40,000. A boat motor will never see that much rpm unless something breaks.
http://rcboat.com/dynoind.htm
Notice it makes peak power at about 23,000. Ours usually make peak power at at least 26,000 and some go even higher. Plus we need them to continue to make decent power all the way up to about 40,000. A boat motor will never see that much rpm unless something breaks.
Last edited by wingracer; 07-27-2009 at 06:11 PM.
#18
While I don't see on that link where it says what the displacement that boat engine is, I'm going to bet that 4.4hp happening at 23,000rpm makes it much larger than a .21 (65% nitro?!?!?). I'd be interested in seeing a dyno chart for a .21 boat engine.
I am well aware that a long pipe won't fit in our cars, that's exactly the point. If you look at the pipes used in plane and boat racing, the pipes are very long, they are never short, no matter what the given RPM range is.
I am well aware that a long pipe won't fit in our cars, that's exactly the point. If you look at the pipes used in plane and boat racing, the pipes are very long, they are never short, no matter what the given RPM range is.
#19
Listen to this and tell me if you've ever heard a buggy engine wind like this:
http://www.youtube.com/watch?v=QjR-K...eature=related
http://www.youtube.com/watch?v=mMdZb...eature=related
Also notice the starting method in the second one. Not sure what's going on there...
http://www.youtube.com/watch?v=QjR-K...eature=related
http://www.youtube.com/watch?v=mMdZb...eature=related
Also notice the starting method in the second one. Not sure what's going on there...
#20
Look, if you refuse to believe me, there are several sites and books that explain two stroke pipe design. Look it up and run the numbers. You will find that our pipes are right in line with where they should be. I have done so.
Also remember that our pipes are longer than they look. Try to imagine uncoiling that manifold and look at how long it would be. Also remember that pipe length is really just the distance from the center of the piston to the end of the divergent cone (the weld joint on most of our pipes). Everything after that has little effect on the RPM range the pipe works at. You just have a convergent cone, whose length and angle effects the strength of the return pulse (which can affect the powerband but really doesn't effect the rpm that peak power comes at) and everything after that is basically just noise reduction.
#24
First of all, I believe that the Ceramic pipes cant be run a saction events.
Second - whats the point - you will not get any more power out of it at all, its not going to make you driver better, its not going to keep all four wheels down, ect
Thrid- the numbers on the pipe need to be visible
A long pipe for what - what would be the benificial point
Second - whats the point - you will not get any more power out of it at all, its not going to make you driver better, its not going to keep all four wheels down, ect
Thrid- the numbers on the pipe need to be visible
A long pipe for what - what would be the benificial point
#26
#27
Tech Apprentice
I got sick of the cruddy look of my pipes after the fuel and dirt baked on to it. I powdercoated is with a standard flat black and it looks great. I thought the heat may have been an issue but its held up awesome so far.
#29
Yeah I saw that but I am talking about actual GOLD. This thing looked like jewelry. He wasn't actually using it of course.