Speed, engines, torque to ground

[kieth]

Attached is the spreadsheet which I have been emailing to anyone who needs information about gearing, transmissions, rearends, and tire diameters.
I initially developed a simalar chart when I was a Salesmen for Freightliner. Engines were changing, new transmissions were being introduced, tires sizes were getting smaller to allow more height, and on top of that the speed limits were also changing.

I had previously been a sale engineer for Tulsa Winch and sold mechanical power transmission equipment. We had to help our customers figure out how to gear our products to have enough torque within a usable range of speeds (chain and sprocket via a Pto on a truck)

Using the same formulas and backing into some other numbers I built a book which showed all the different engines, transmissions, rear ends, and tire diameters that were used at that time and then put that information into a spreadsheet that show usable torque to the ground at different rpms (100 rpm increments)

I attempted to do the same thing with our trucks and the engines that we see being used most often.

I use this sheet to look up a combination of engine, trans, R/A ratio, and tire diameter that I know how it performs.

i.e. my 66 GMC has a Throttle Body Injected 350 with a 700r4, 3:73 rears, and 31" rear tire diameter. The truck works great in 1, 2, 3rd and in 4th cruised down the highway at 66mph at 2000 rpm, it is not a race truck but it does very well and I am happy with it. this combo has 442ft lbs of torque to the ground in OD........so we use that as a benchmark and also as the bottom of the torque to the ground number to make sure the trucks can pull themselves down the road.
Look at how much torque your truck had with the original engine and then compare that to how much it has with the new engine/trans/ etc that you want to put in the truck. This will give you a quantifiable number to compare to before you set your truck up.

Good luck with your build .......Kieth Tulsa, Ok send me a pm if you want to talk about this in more detai and I will send you my phone number....ps I do not sell anything......

Well it did not work, will try again tomorrow.......Kieth

[RockTonka]

Such a tease...

[LVPhotos]

So I added 123cu" (406) more than doubled HP and 3x torque with a 28" tire 1/2" shorter than stock
Dropped in 5 speed gained od and lost 20+lb lighter wheels and tires. Also threw more money at it than original sticker. What chart tells me that if I have 100x the money invested that it not more powerful than stock? Seems my Cummins at 610 Ft lb cost 20k and the 2014 at 850 cost 60k.
Posted via Mobile Device

[1963c-10]

Hey Keith, been awhile, but wheres the link to input the info or is it emailed to you?

[kieth]

sorry about that, cannot get it to load----

pm me on this board and give me your e mail address and i will send it to you. Kieth

[1963c-10]

ok, thanks Keith.

[kieth]

Originally Posted by kieth

Attached is the spreadsheet which I have been emailing to anyone who needs information about gearing, transmissions, rearends, and tire diameters.
I initially developed a simalar chart when I was a Salesmen for Freightliner. Engines were changing, new transmissions were being introduced, tires sizes were getting smaller to allow more height, and on top of that the speed limits were also changing.

I had previously been a sale engineer for Tulsa Winch and sold mechanical power transmission equipment. We had to help our customers figure out how to gear our products to have enough torque within a usable range of speeds (chain and sprocket via a Pto on a truck)

Using the same formulas and backing into some other numbers I built a book which showed all the different engines, transmissions, rear ends, and tire diameters that were used at that time and then put that information into a spreadsheet that show usable torque to the ground at different rpms (100 rpm increments)

I attempted to do the same thing with our trucks and the engines that we see being used most often.

I use this sheet to look up a combination of engine, trans, R/A ratio, and tire diameter that I know how it performs.

i.e. my 66 GMC has a Throttle Body Injected 350 with a 700r4, 3:73 rears, and 31" rear tire diameter. The truck works great in 1, 2, 3rd and in 4th cruised down the highway at 66mph at 2000 rpm, it is not a race truck but it does very well and I am happy with it. this combo has 442ft lbs of torque to the ground in OD........so we use that as a benchmark and also as the bottom of the torque to the ground number to make sure the trucks can pull themselves down the road.
Look at how much torque your truck had with the original engine and then compare that to how much it has with the new engine/trans/ etc that you want to put in the truck. This will give you a quantifiable number to compare to before you set your truck up.

Good luck with your build .......Kieth Tulsa, Ok send me a pm if you want to talk about this in more detai and I will send you my phone number....ps I do not sell anything......

Well it did not work, will try again tomorrow.......Kieth

Here we go again, maybe it willwork this time. Kieth


oh well the file is too large to load.....almost got there. Kieth

[Rich 5150 69]

I think we got the torque fiqured out...

[LT1 Burb]

Is that your Rich, that is insane.

[Rich 5150 69]

No, I wish, mine is a dailey driver, thats just one of those pics you save, it came from the yellow bullet racing site. It is insane as you said..!

['63GENIII]

I think I like Rich's spreadsheet the best so far!
Posted via Mobile Device

[kieth]

Originally Posted by '63GENIII

I think I like Rich's spreadsheet the best so far!
Posted via Mobile Device

ESPECIALLY SINCE I HAVE NOT POSTED THE SPREADSHEET YET.....IT DOES GIVE VISUAL AID TO THE CONCEPT OF TORQUE........HA HA....


WELL IT SEEMS WE HAVE RUN INTO THE FILE SIZE PROBLEM THAT HAS BECOME A ISSUE BECAUSE WE ARE CHANGING OVER TO A NEW FILE SERVER. IT REALLY WILL BE BETTER TO HAVE THIS INFORMATION IN ONE PLACE SO I THINK WE WILL WAIT UNTIL THE CHANGEOVER IS MADE AND TRY TO POST IT AFTER THAT.........

[kieth]

Originally Posted by kieth

Attached is the spreadsheet which I have been emailing to anyone who needs information about gearing, transmissions, rearends, and tire diameters.
I initially developed a simalar chart when I was a Salesmen for Freightliner. Engines were changing, new transmissions were being introduced, tires sizes were getting smaller to allow more height, and on top of that the speed limits were also changing.

I had previously been a sale engineer for Tulsa Winch and sold mechanical power transmission equipment. We had to help our customers figure out how to gear our products to have enough torque within a usable range of speeds (chain and sprocket via a Pto on a truck)

Using the same formulas and backing into some other numbers I built a book which showed all the different engines, transmissions, rear ends, and tire diameters that were used at that time and then put that information into a spreadsheet that show usable torque to the ground at different rpms (100 rpm increments)

I attempted to do the same thing with our trucks and the engines that we see being used most often.

I use this sheet to look up a combination of engine, trans, R/A ratio, and tire diameter that I know how it performs.

i.e. my 66 GMC has a Throttle Body Injected 350 with a 700r4, 3:73 rears, and 31" rear tire diameter. The truck works great in 1, 2, 3rd and in 4th cruised down the highway at 66mph at 2000 rpm, it is not a race truck but it does very well and I am happy with it. this combo has 442ft lbs of torque to the ground in OD........so we use that as a benchmark and also as the bottom of the torque to the ground number to make sure the trucks can pull themselves down the road.
Look at how much torque your truck had with the original engine and then compare that to how much it has with the new engine/trans/ etc that you want to put in the truck. This will give you a quantifiable number to compare to before you set your truck up.

Good luck with your build .......Kieth Tulsa, Ok send me a pm if you want to talk about this in more detai and I will send you my phone number....ps I do not sell anything......

Well it did not work, will try again tomorrow.......Kieth

if at first you don't succeed BLAH BLAH BLAH......

TORQUETOGROUND_Excel_Workbookasapdf.pdf

WELL HERE IS THE FILE, NOW ADOBE WILL NOT OPEN IT???


WHAT DO WE DO NOW ? WHEN I OPEN IT WITH ADOBE ACROBAT I ONLY GET THE FIRST PAGE, NOT THE OTHER INFORMATION.

ANY ADMINISTRATION HELP HERE ?

[Rich 5150 69]

I`ve used this one in the past....works great..
http://johnmaherracing.com/calculato...io-calculator/