ScottyG

I have been thinking about a big inch motor lately and it has generated all kinds of questions, and I got tired of screwing around on a calculator. So I worked up an Excel sheet that calculates all the things that I have been doing over and over.

It calculates:
- Engine size in C.I and liters
- compression ratio
- rod/stroke ratio
- piston C/D for zero deck height protrusion

You have to enter:
- bore
- stroke
- rod length
- deck height
- combustion chamber volume
- head gasket thickness
- piston relief/dome cc's
- actual piston C/D

The compression ratio calc takes into account head gasket thickness, valve reliefs or domes, and piston deck heights above or below zero deck height. It allows you to play with different C/D's, gaskets, and reliefs to get the compression ratio you're looking for.

If someone would help me figure out how to make this file available from my website, then I'll post it there. Otherwise I'll email it to anyone who wants it.

Use it at your own risk! I checked it against the Ross Pistons calc link on their website, and mine seems to work fine. It's basically the same as the Ross link, except mine produces a little more info.

<small>[ November 04, 2002, 09:59 PM: Message edited by: ScottyG ]</small>

99 Black Bird T/A

iTrader: (4)

Sounds pretty cool, can you email me a copy?

Thanks

ScottyG

Sent it. If you make any corrections or enhancements, shoot me a copy back.

DERTY

I'd like a copy too. I can add some gearing information and estimated HP from weight and ET as well as estimated ET from weight and HP, etc.

ScottyG

Yeah, that's a good idea. Here it comes....

99taws6

iTrader: (2)

can I get a copy? my99taws6@knology.net

JNorris

iTrader: (4)

Please email a copy to jnorris404@aol.com

Thanks

John

ScottyG

Damn chikn, you're serious about this, aren't you. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> Sounds like a nice application.

Mine's a pretty stupid little spreadsheet, but it does the job.... lets you play around with different combos. Like I said, it keeps me off the calculator.

If I have a copy of the sheet here at work I'll send it to all y'all right away, otherwise it'll be later on dis eenin' (that's "this evening" for you redneck-challenged folks).

joshua022

iTrader: (12)

I know this thread is really old...but could someone email me a copy??

aaron653

iTrader: (1)

lol..

camaroguy26

iTrader: (21)

haha I wouldn't mind a copy either Thanks guys!

wolfy

iTrader: (1)

just search for "piano prodigy VE calculator". it's also an excel spreadsheet, does all the same stuff, plus some cool new stuff, ie. valve events...works really well and i play with it alot. if i were at work i could email it to you but i'm not, so you'll have to try your luck with the search...