Gearbox build

A1ex · Post by **A1ex** » Sun Jan 29, 2012 10:01 pm

How interchangeable are the gears between boxes anyway? I guess the syncro would need changing too? Do you want me to do a run down of the best gears from each of the box from the prelude online list? Can do a top speed per gear run down of the ratio options...

mercutio · Post by **mercutio** » Mon Jan 30, 2012 9:43 pm

yeah alex that would be great

then if we can get the ratios from different hondas we can mix amd match to give the best box

A1ex · Post by **A1ex** » Mon Jan 30, 2012 10:16 pm

OK

I've got an idea... Do you want me to build an online calculator we can put up in the forum? Could have all the ratios available for the h22 box on drop down menus for each gear. Could then do an option for red line and wheel size then people can work out what their own 'perfect' gearbox would be with reference to gearbox each cog comes from. Shouldn't take more than 2 - 3 hours to knock up based on the prelude online table

Were the any issues with that table?

littlefeller · Post by **littlefeller** » Mon Jan 30, 2012 10:24 pm

i have quite a list of honda boxes, with ratios. if it is possible then the fd from an auto would be best (4.785)

as for the table, yes there was one which is wrong, the m2f5 for h22a1 should be the same as h22a2

mercutio · Post by **mercutio** » Mon Jan 30, 2012 11:25 pm

this is getting better

littlefeller · Post by **littlefeller** » Mon Jan 30, 2012 11:38 pm

an exel spread sheet would only take about half hour to build, if i get time in the morning i will do one

Post by **NafemanNathan** » Tue Jan 31, 2012 8:21 am

Got me a U2Q7 box for when the time comes, but that's not yet, so not properly read up on this.

Where's Marc Dino and/or Rich?

Subscribed.

littlefeller · Post by **littlefeller** » Tue Jan 31, 2012 9:02 am

hey alex, would you happen to know how an exel spread sheet could work on an internet forum? i have seen other cal programs on other sites but not sure how these work online? does anyone know?

Post by **NafemanNathan** » Tue Jan 31, 2012 9:15 am

I'm assuming you've got a spread sheet of gear ratio's and final drives, otherwise that's one random thread hijack!

Print screen and save it as a jpg? Not ideal, but it'd work.

EDIT: Wow where did all those posts above come from?!

A1ex · Post by **A1ex** » Tue Jan 31, 2012 9:34 am

I know exactly how it works! I'm selling my business idea which is exactly this process

Excel spread sheets don't work within a website, they would need to be downloaded and the calculations are not trasferrable. You can use the calcs in excel as a formula guide but the cals will be carried out in php, for example;

In excel we have cells A, B and C. In excel the equation of A= B * C would be written in cell A as = B * C.

In php its written as variable A which is defined as $A = $B * $C;

There are also instances where excel uses formulas that php doesn't understand for example the equation 'sum(a2:a8)' means body lemonade all to php.

The thing with the excel sheet is the code used can then be taken out of the sheet and used else where, where as in php this code is not visible unless you have access to the back end of the server.

As for time, I could knock up the code for these calcs in the same amount of time it would take someone to do it in a spread sheet. To give you an idea, I've set up a quantity surveying webiste which does all of the calculations for the materials for various construction projects such as laying a driveway. It works this out for specific items, adds them up and gives exact totals and costs.