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Post by me on Dec 19, 2008 21:01:49 GMT
Was just me thinking loud mate.... its great as it is..... i'll give you 2 days to improve it.... ok...
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ash
Automatica
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Post by ash on Dec 19, 2008 21:07:22 GMT
yes sir!
;D
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Post by me on Dec 20, 2008 21:43:45 GMT
Ah one thought - 3 speed boxes or do you just enter 0's as 4th
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ash
Automatica
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Post by ash on Dec 20, 2008 22:06:30 GMT
i dont know , try it ? :)if it dont work ill fix it
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ash
Automatica
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Post by ash on Dec 21, 2008 20:35:52 GMT
anyone got any errors, suggestions, questions?
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Post by timelord on Dec 21, 2008 21:36:41 GMT
seems good to me
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Post by gp200 on Nov 2, 2009 16:08:53 GMT
i can not get it to work doing 34mph at 12000 rph in 4th i have put this in 69 27 10 58 14 54 18 50 22 46 41 what's going on ? or is that how fast i will be going
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Post by gp200 on Nov 2, 2009 16:15:47 GMT
oh ! see what i have done CIRCUMFRENCE (must learn to read)
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Post by tony on Nov 10, 2009 13:59:23 GMT
Ash-link doesnt work anymore?
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ash
Automatica
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Post by ash on Nov 10, 2009 14:17:31 GMT
ah i think geocities closed down if anyone has it could they upload it, and post it here cheers
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Post by teo on Apr 12, 2010 12:19:56 GMT
hi everyone, I'm from Italy... we use this on exel file www.et3.it/Calc%20II.htmto download clik on "PER USARE ... CLICCA QUI" hope useful
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Post by unreliablesc on Apr 12, 2010 14:55:12 GMT
hi everyone, I'm from Italy... we use this on exel file www.et3.it/Calc%20II.htmto download clik on "PER USARE ... CLICCA QUI" hope useful I modified that one to work with DRT primary cogs and short 4th once. Don't know where i put it tho I'll have a rummage on the work-laptop some day.
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Post by Wayne Miller on May 15, 2010 9:08:23 GMT
Hi Ash,
Is there anychance that you can send me a PM with the formula that you used to get the MPH per ratio per RPM?
Ive worked out the rest I just can do this bit, my spreadsheet is useless with it ;D
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ash
Automatica
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Post by ash on May 15, 2010 9:17:51 GMT
a/b/c*d*60/100/1609.344 = MPH
a- rpm b- primary ratio c- gear ratio d- wheel circumference in centimeter
i allready have a microsoft excel speadsheet done, i just dont know where i can upload it
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Post by Wayne Miller on May 15, 2010 10:01:22 GMT
a/b/c*d*60/100/1609.344 = MPH a- rpm b- primary ratio c- gear ratio d- wheel circumference in centimeter i allready have a microsoft excel speadsheet done, i just dont know where i can upload it Cheers mate, got it working now thanks. didnt factror in 1609.344 metres in a mile I did it (((a*60)/e)*d)/1609.344 where e is final ratio and tyre circumference is in Metres
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Post by tzsteve on Dec 22, 2016 19:53:23 GMT
Haven’t seen a vespa custom gearbox calculator going around anywhere there’s a simple, but useful one on www.scooterhelp.com, if you’re using popular boxes, but when you start mixing with ZIRRI or DRT etc it can get a little tricky with the math’s and what-not. So I thought id come up with a simple to use program that calculates custom gearbox by inputting each cog one by one and the ability to get accurate speeds by entering yours wheel circumference, rather than just selecting either 3.00 or 3.50 because there’s a lot of variants with tire depths.. First of all you need to open/run ashgearcalc.exe, it will load a console up in which you’ll enter your data into. UPDATED: PLEASE RE-DOWNLOADDownload here:- geocities.com/ukash86/ashgearcalc.zipfull of dead links. can this be deleted or updated by someone
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