rescuing an old friend

[M4wdFab]

2 pi r man!  its real!

[rejeep]

I don’t think tire size effects the calculation.. just the real world application..

2 pi r man!  its real!

of course it’s real... just doesn’t affect the gear calculation.. just its application

i.e. a 400 HP motor still produces 400 HP if it’s in a car or a tank… the application will produce different results.

[M4wdFab]

ya why would we want real world app when we are trying to drag trucks over rocks slower haha



my CJ5 was 6.32  2  4.88    with propane and the idle set at like 300rpm loaded it was pretty nice crawl lol

[rejeep]

nice one..

http://www.grimmjeeper.com/gears.html

[mr.mindless]

it's silly to ignore ground speed when talking gearing as it relates to wanting to go slower. gears get you there but it's ground speed at idle that you really actually care about and judge by.

[cracker]

Arie- You have 35's right? Our jeeps should be pretty close.  for comparison you can look at my video here: http://www.youtube.com/watch?v=cA1tEZoOQRo&feature=relmfu at about :45 I take my foot completely off the gas and just let it idle in 1st gear low range. 

[dubt]

what do rubi's have for first gear?  Tom was much slower than I at big dogs and I'm like 90:1.  I could use lower occasionally, especially down hill.

NP241OR t-case = 4:1
NSG370 trans = 4.46:1
D44 axles = 4.11:1
crawl ratio of 73.32= awesome down hill descent and awful wheel spin in mud!
Must be a Jeep thing 
[/quote

what do rubi's have for first gear?  Tom was much slower than I at big dogs and I'm like 90:1.  I could use lower occasionally, especially down hill.

NP241OR t-case = 4:1
NVG3550 trans = 4.01:1
D44 axles = 4.11:1

Must be a Jeep thing 

[rejeep]

agree..
there is also an aspect of leverage....
I just don’t really plan on changing tire size so I wasn’t trying to complicate the issue.

[rejeep]

Just got off the phone with AA...
seems they have addressed some of the early issues with the 4 speed case...
my rep was very honest about their shortcomings in the early stages...

Either way.. have some thinking to do....

also got a quote from Novak on a turnkey T18....

there is a significant price difference, both with advantage and drawbacks...

[mr.mindless]

agree..
there is also an aspect of leverage....
I just don’t really plan on changing tire size so I wasn’t trying to complicate the issue.

right, but only Aaron of those making comparisons is on 35s, Tom is on 33.5s I think, Eric is on what used to be 38s... Apples to apples means you gotta go all the way to the end, not stop before the last step.

[etk300ex]

Hahaha 37.5s

[rejeep]

i was only paying attention to aaron

[dubt]

Arron is the only one on 35s so that the one to watch.

[Nick]

what is the axle gearing? Or do you not want to touch the axle so you can still cruise down the street at like 65?

[rejeep]

65... thats in 4th... i can go back to the future with this heep...

axles are @ 4:10... i'm not opposed to swapping either, but more bang for the buck working with the drivetrain..