How do you calculate engine displacemet in liters, bore x stroke x?
#12
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Originally posted by Honda-S2000VTec
I have done the math for a F20C motor bored out to the max (90mm with Darton sleeves) and a 04 crank (90.7mm stroke) is 2308 cc or 13.47% more displacement.
3.14159*9.0^2/4*9.07*4=2308 cc
Now what happens if I apply 1-Bar of pressure or 14.5-Psi? How could I mathematically factor that in?
If our current atmosphere is 1-Bar and we add 1-Bar more pressure would the volume or displacement double? 4.6 liter
I have done the math for a F20C motor bored out to the max (90mm with Darton sleeves) and a 04 crank (90.7mm stroke) is 2308 cc or 13.47% more displacement.
3.14159*9.0^2/4*9.07*4=2308 cc
Now what happens if I apply 1-Bar of pressure or 14.5-Psi? How could I mathematically factor that in?
If our current atmosphere is 1-Bar and we add 1-Bar more pressure would the volume or displacement double? 4.6 liter
As for the pressure problem? I understand what you're asking, I've just got no idea how to answer. I would think, however, that it probably doesn't work that way. It's almost never the case in nature where increasing the input exactly increases the output. Doubling the pressure probably won't double the effective displacement. There are always loses in the system that have to be delt with. Otherwise, we'd have cars running with perpetual motion engines!
Drive Safe,
Steve R.
#13
Displacement = pi*(0.5*Bore)^2*stroke*# pistons...
If you want liters, use bore and stroke in mm and divide by 1 million...
I know two notorious tuners that are sleeving to 89 mm...
J
If you want liters, use bore and stroke in mm and divide by 1 million...
I know two notorious tuners that are sleeving to 89 mm...
J
#14
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For lots of race regulations, a turbo engine is classed the same as a naturally aspirated engine 1.5 times its size. So a 2000cc turbo would be classed the same as a 3000cc n/a.
Of course, actual hp outputs are often refined further by the regulations via inlet restrictors.
Of course, actual hp outputs are often refined further by the regulations via inlet restrictors.
#15
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When I ask the engine builder about boring out as large as possible he also stated that you need at least .110" material to seal between the bores. We measured the distance between the bores at .284" on a stock sleeved block. If you subtract 1.5mm per sided for a total of 3mm. .284"-.118"(3mm)=.166 minus some chamfering around the top .020 per side for a total of .04 = .124" left. So it looks like there is enough material between the bores for 90mm bore.
#17
How much do you need to bore the f20c block to put a sleeve in?
Is there any reliable place in USA that you guys would recomend for rebuilding a shortblock to be able to handle more boost? Can I have their websites or contact no?
Is there any reliable place in USA that you guys would recomend for rebuilding a shortblock to be able to handle more boost? Can I have their websites or contact no?
#18
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I have one block done by Benson which is currently in my car, and one block by Golden Eagle, which is being rebuilt now. The Golden Eagle (http://www.goldeneaglemfg.com/) one has braces to help support the sleeves, but the braces seem... for show. Some of the 'prongs' don't even touch the inside side of the block casting, which to me seems like they are doing nothing?? I imagine it will hold up just fine, but I think the 'block guard' (braces) thing is a gimic.
I don't think Benson has a site?
Chris
I don't think Benson has a site?
Chris
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