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Author Topic: Dually to single conversion  (Read 13295 times)

Offline Cumminalong

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Re: Dually to single conversion
« Reply #15 on: December 04, 2009, 06:43:53 pm »
Here's what you gotta look at whenever it comes to mileage increases, which are usually minimal.....

How much would you spend on product A, B, C and D?

How much fuel would that product buy?

How much of an improvement did you really get?

How long would it REALLY take to pay off?

Whenever you start talking gear swaps for mileage, it doesn't work out well because you have to take into account.....

1 - The price of a set of gears (per axle)
2 - The price of a seal or rebuild kit (per axle)
3 - The price of the labor per axle
4 - The price of the fluids

Typically, a gear swap on a 4WD truck goes like this, PER AXLE

Gear set: $200
Install Kit: $60 - $180
Labor: $300 - $500 per axle
Fluids: $24 - $72

Total per axle: $584 - $952

Here's a hypothetical example.....

Let's say you pay the mid point price PER AXLE, so for a 4WD you just paid $1536.

Let's say fuel costs $2.65 per gallon. That means you could have bought 579 gallons of fuel. At 30 gals of fuel, that's 19.3 tanks of fuel.

So, let's say the you gain 1 MPG by doing this swap and you're now getting 15 MPG.

In order for that gear swap to pay for itself, with a 1 MPG improvement, an original cost per mile of $0.189, a new cost per mile of $0.176....saving you 1.3 cents per mile. You'd have to drive 118,153 miles to break even.

Best bet is properly inflating the tires, keeping an air filter clean, using the lightest weigh oil possible, removing all the excess BS that isn't needed in that monster tool box that just stores junk, keeping the RPM's under 2000, boost in the single digits and EGT's in the 550 - 700* range.

 :up:
« Last Edit: December 04, 2009, 06:56:51 pm by Cumminalong »

Offline 1SlowFormula

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Re: Dually to single conversion
« Reply #16 on: December 04, 2009, 07:16:50 pm »
well said...

But that still won't stop me from buying the MPG-MAX from Snow Performance...

Well worth the money for the performance gains, lower EGT's, and milage increase that all come with the same price, lol...
John P. - 2007 2500 SLT, QC, 4X4, 5.9 CTD, G56 6spd w/SBC DD clutch, 6" BDS lift, 37" VorTrac's, Smarty, AFE stg 2 CAI, CFM+, Labonte DIS-S4, Exergy +40% injectors, II BoP, AirDog II 165, MBRP exhaust and !cat, and Amsoil BMK-25 and all fuilds.



Offline RAGINRAM

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Re: Dually to single conversion
« Reply #17 on: December 04, 2009, 07:21:10 pm »
Thanks for the good info, hey I'm headed to Dothan right now I'll be back at 6 or so if that delete comes in will I be able to pick it up then? :up:
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Offline Cumminalong

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Re: Dually to single conversion
« Reply #18 on: December 04, 2009, 07:22:29 pm »
Absolutely!

I'll give you a call if it comes in.

It's showing as out for delivery right now.

:up:
« Last Edit: December 04, 2009, 07:47:56 pm by Cumminalong »

Offline bikemancs

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Re: Dually to single conversion
« Reply #19 on: December 05, 2009, 09:31:48 am »
Here's what you gotta look at whenever it comes to mileage increases, which are usually minimal.....

How much would you spend on product A, B, C and D?

How much fuel would that product buy?

How much of an improvement did you really get?

How long would it REALLY take to pay off?

Whenever you start talking gear swaps for mileage, it doesn't work out well because you have to take into account.....

1 - The price of a set of gears (per axle)
2 - The price of a seal or rebuild kit (per axle)
3 - The price of the labor per axle
4 - The price of the fluids

Typically, a gear swap on a 4WD truck goes like this, PER AXLE

Gear set: $200
Install Kit: $60 - $180
Labor: $300 - $500 per axle
Fluids: $24 - $72

Total per axle: $584 - $952

Here's a hypothetical example.....

Let's say you pay the mid point price PER AXLE, so for a 4WD you just paid $1536.

Let's say fuel costs $2.65 per gallon. That means you could have bought 579 gallons of fuel. At 30 gals of fuel, that's 19.3 tanks of fuel.

So, let's say the you gain 1 MPG by doing this swap and you're now getting 15 MPG.

In order for that gear swap to pay for itself, with a 1 MPG improvement, an original cost per mile of $0.189, a new cost per mile of $0.176....saving you 1.3 cents per mile. You'd have to drive 118,153 miles to break even.

Best bet is properly inflating the tires, keeping an air filter clean, using the lightest weigh oil possible, removing all the excess BS that isn't needed in that monster tool box that just stores junk, keeping the RPM's under 2000, boost in the single digits and EGT's in the 550 - 700* range.

 :up:


Wow, Mongo do good math.  Good Mongo...

 :pw:


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Offline Cumminalong

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Re: Dually to single conversion
« Reply #20 on: December 05, 2009, 01:57:44 pm »
Hey now.......

I'm at least a sophisticated caveman.

;D


Offline noplugs

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Re: Dually to single conversion
« Reply #21 on: December 05, 2009, 03:50:14 pm »
I just cant see Rich in a suit... maybe eating it or using it as a rug... but not wearing it....
659 HP/1287 TQ -- She's BACK!  Yeah,,, nope she's not stock..

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Nothing is exactly as it seems,nor is it otherwise

Offline Cumminalong

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Re: Dually to single conversion
« Reply #22 on: December 05, 2009, 05:11:14 pm »
I'd have friggin smudge stains all over it.

They're be covered in grease, oil and yesterday's lunch.

 :lol:

Offline mayfair

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Re: Dually to single conversion
« Reply #23 on: December 07, 2009, 05:30:25 pm »
I just cant see Rich in a suit... maybe eating it or using it as a rug... but not wearing it....

:lol: LMMFAO !!! :lol:

 

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