max cyl pressure?
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Theycallmecrash
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Is this a question in regards to boost? Like turbo application?
If thats the case, then its not a matter of pressure, its a matter of power, the crank is only one of many things to be concerned about. So the short answer is, not a lot
If thats the case, then its not a matter of pressure, its a matter of power, the crank is only one of many things to be concerned about. So the short answer is, not a lot
konarider94
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It is usually ~15 to 20 times the compression ratio for gasoline engines depending on valve timing. These are 10:1 so 150-200 psi should be a decent range. There is an actual formula but just go with that. With combustion it will be much higher of course but usually people want to diagnose compression issues with a question like that.
no turbo but that would be cool and no i dont have any compression issues that i know of lol just kinda lookin for ideas for a future build and trying to find out the max psi with heat expansion would be for what the bottom end can handle since that seems to be the week spot on these motors
konarider94
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So you are going to build your engine around a max cylinder pressure. That is interesting. The only way to measure that is with an in-cylinder pressure transducer and they sell for thousands of dollars each. Not to mention the daq system you need for it.
You need to do a lot more research and ask the right questions. Im pretty sure no one here has gone through the expense of measuring the cylinder pressure while running.
You need to do a lot more research and ask the right questions. Im pretty sure no one here has gone through the expense of measuring the cylinder pressure while running.
ok sorry for the bad questions i guess i'll try to be more clear i more looking for max cyl pressure with heat expansion from the compression but not the combustion pressures im just fishin for info as a starting place so thanks for any input
WHAT you are trying to accomplish would be a good starting point. More bottom end, more power up top, pump gas or race gas, daily ride or track bike....Build the engine to do what you want it to do....the rest falls into place. You are NOT the first guy to build one of these. Look into Hammer Performance's or Revolution's site....that will give you some direction.
well you guys are goin to hate me but im looking to convert it to a direct inject naturally aspirated diesel i already got a pump, injectors and have found a couple piston options that have the direct inject style top my local machine shop and i are workin out what ones would be best and what sparked this idea is i found these guys converting kawi. engines over to idi diesels and they use the stock bottom end an put a diff head and pistion on looked like sweet ****
go cytocis
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Yea, Hayes Diversified has an exclusive contract to convert KLR 650s to diesel for the US military. I got pretty interested myself until I learned they're not available to the public & that the conversion slows the bike down to 1/4 mile times of 15sec!
The only real benefit for the military is that they can run the bikes on the same fuel that everything else of theirs runs on. Still a cool idea though.
konarider94
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You realize the klr is liquid cooled and the buell is air cooled right.
konarider94
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keep us posted on the progress.
anyone heard anything out of the EBR/HERO diesel bikes yet?
