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Moderator
Curtis Jacobson
Portland Oregon
(4414 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

authors avatar
calculators, converters, and other online/downloadable tools
Posted by: Moderator
Date: January 14, 2009 01:54PM

For years now, BritishV8 has provided a nice gear-ratio-to-road-speed-at-rpm calculator. Dan Masters created it in Excel, and it's downloadable here: [www.britishv8.org]

What if BritishV8 offered a whole toolbox of useful converters and calculators!

They could be in Excel, or possibly web-based (if someone volunteers to do the PHP and/or Java work.)

So... can I get some volunteers?

How about some suggestions?
a) What online tools would you find most useful?
b) What existing tools do you like (and what do you like about them)?

Example:
I think this is a pretty nice compression ratio calculator: [www.csgnetwork.com]
(Anyone here want to create an even better one?)


Bill Young
Bill Young
Kansas City, MO
(1337 posts)

Registered:
10/23/2007 09:23AM

Main British Car:
'73 MG Midget V6 , '59 MGA I6 2.8 GM, 4.0 Jeep

authors avatar
Re: calculators, converters, and other online/downloadable tools
Posted by: Bill Young
Date: January 14, 2009 02:56PM

Curtis, I've been using the gear ratio calculator on the GM F body site and I really like it because it already has a drop down menu with a lot of popular transmissions and their ratios already loaded as well as tire size information and it works with 6 speeds if you have one of those. [www.f-body.org]
I like the Java script as well as not everyone can open Excel files.


Moderator
Curtis Jacobson
Portland Oregon
(4414 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

authors avatar
Re: calculators, converters, and other online/downloadable tools
Posted by: Moderator
Date: January 14, 2009 03:10PM

Good information! What other calculators and features should we benchmark (and why)?


Scott68B
Scott Costanzo
Columbus, Ohio
(542 posts)

Registered:
10/25/2007 11:30AM

Main British Car:
1968 MGB GM 5.3 LS4 V8

authors avatar
Re: calculators, converters, and other online/downloadable tools
Posted by: Scott68B
Date: January 14, 2009 04:40PM

Curtis,

I've always liked the "Roadway Vehicle Dynamometer" Bowling and Grippo put together.

[www.bgsoflex.com]

I played with it several years ago and thought it gave reasonable results. I think something like this could be useful for fine tuning your engine. There are a bunch of other tools at the site as well.

-- Scott


Moderator
Curtis Jacobson
Portland Oregon
(4414 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

authors avatar
Re: calculators, converters, and other online/downloadable tools
Posted by: Moderator
Date: January 14, 2009 04:59PM

hmmm... Scott, didn't you tell me that you have some programming skill? We need to talk!


v8mgb
Jim Miller

(99 posts)

Registered:
01/01/2008 11:38AM

Main British Car:
78 MGB Buick 215

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Re: calculators, converters, and other online/downloadable tools
Posted by: v8mgb
Date: January 15, 2009 07:30PM

Here is the tire size calculator I have used. It's great for comparing different tire size options

[www.miata.net]


Moderator
Curtis Jacobson
Portland Oregon
(4414 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

authors avatar
Re: calculators, converters, and other online/downloadable tools
Posted by: Moderator
Date: January 17, 2009 02:55PM

So many people ask questions about engine weight, such as: "What's the weight difference between a Rover V8 and a Ford V8?" The question isn't easily answered because there are so many variables... literally hundreds of them just for the three or four most popular engine choices.

Maybe it's impractical to do, but I think it would be really cool if we had a "calculator" where a user could select between all the popular variables and out would pop an accurate weight for a specific combination. Of course, the data tables would be big; the calculator would need enough data to be able to calculate the weight savings of this intake manifold over that one, this gear reduction starter over that OEM starter, this crank vs that stroker crank, this flywheel and pressure plate vs. that lightened flywheel and diaphragm pressure plate, etc., etc., etc. -

Maybe we'd want the calculator to accept and "learn" new data/variables from the user's research. (Example: If you're the first person to contemplate AFR aluminum SBF heads, then it's up to you to enter an accurate weight for them, but from then on AFR heads would be in the table for other people to select.)

Ideally, you'd be able to save several component combinations and then build a table showing them side by side in columns.

Wouldn't it be nice if you could input cost estimates for each component choice and automatically generate some sort of cost-per-pound-saved calculation?


Mr. T
Tony Andrews
Kent Island, Maryland
(153 posts)

Registered:
10/23/2007 03:59PM

Main British Car:
'75 mgb, '74 grille, morspeed bumpers Rover 3.9

authors avatar
Re: calculators, converters, and other online/downloadable tools
Posted by: Mr. T
Date: January 18, 2009 02:38PM

Yep, that would be awesome. At the least, so we could get this list started, maybe a sticky that we could post to with parts and weight.


Scott68B
Scott Costanzo
Columbus, Ohio
(542 posts)

Registered:
10/25/2007 11:30AM

Main British Car:
1968 MGB GM 5.3 LS4 V8

authors avatar
Re: calculators, converters, and other online/downloadable tools
Posted by: Scott68B
Date: January 25, 2009 11:11AM

Here's a nifty gear ratio calculator.

[efi.moonwell.com]

-- Scott


alana
alan atkinson
10567
(232 posts)

Registered:
06/19/2008 08:06PM

Main British Car:
68 TR250 LS2

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Re: calculators, converters, and other online/downloadable tools
Posted by: alana
Date: January 25, 2009 01:23PM

Well if someone wants to weigh all the various components, I'll write the PHP for a calculator for a specific engine.
Would be great if it had 215, SBC, 302 and LS1 plus the common options for each. Other motors would be a bonus, but that would cover 90% of the conversions I reckon.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5853 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: calculators, converters, and other online/downloadable tools
Posted by: BlownMGB-V8
Date: January 26, 2009 12:09PM

We do have weights of probably most of the components in old postings, if there was a simple way to mine the data. I know block weights and such are in the Roadmaster thread.

There's a useful dynamic compression ratio calculator in the recent 340 postings. Is there going to be a "Tools" option in one of the drop down tabs?

Jim


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5853 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: calculators, converters, and other online/downloadable tools
Posted by: BlownMGB-V8
Date: January 26, 2009 12:12PM

We do have weights of probably most of the components in old postings, if there was a simple way to mine the data. I know block weights and such are in the Roadmaster thread.

There's a useful dynamic compression ratio calculator in the recent 340 postings. Is there going to be a "Tools" option in one of the drop down tabs?

Jim


MGBV8
Carl Floyd
Kingsport, TN
(3807 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB, Buick 215

authors avatar
Re: calculators, converters, and other online/downloadable tools
Posted by: MGBV8
Date: February 14, 2009 10:55AM

Wheel offset calculator:

[www.1010tires.com]


Moderator
Curtis Jacobson
Portland Oregon
(4414 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

authors avatar
Re: calculators, converters, and other online/downloadable tools
Posted by: Moderator
Date: March 28, 2009 02:02PM

I haven't had time to give this thread a lot of thought lately... until yesterday.

Jay Musgrove has kindly offered to share his clever calculator for bend spacing along tubing of popular diameters:
Tube Bend Calculator for Easier Rollcage Fabrication (854KB, Excel spreadsheet with macros)

This will be especially useful for anyone fabricating a rollcage! Jay will also be writing-up an article to explain use of the calculator, with photos of his own cage during construction.


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