tommy450r
Well-Known Member
How long has it been taking to get a new unit from AA? Or does any of the offroad company's keep them in stock?
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Help Support Hardline Crawlers :
Atlas transfer case
- Thread starter tommy450r
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al1tonyota
Well-Known Member
Several shops keep them in stock check with EOR and sunfire offroadtommy450r said:
tommy450r
Well-Known Member
What gear ratio would yall suggest for a bouncer LS th350 an 4.56 in the diff 44 inch tires with about 400hp. Going to built a 500hp 6.0 this winter. I wheel a lot of dirt hills an need wheel speed.
Neal3000
Well-Known Member
3:1 FTW
tommy450r said:
if it helps, I've got a 3.8 atlas in mine with 5.38s and 42s running a 500hp 6.0. it gets plenty of wheel speed. I'm no bouncer, but she'll get some wheel speed if I need it.
not saying I have the perfect setup, just trying to help with some info
al1tonyota
Well-Known Member
I vote 3:1! That's what I ran and it worked well for me 3rd was pretty fast and 1st was low enough to ease up on stuff and crawl some.
tommy450r
Well-Known Member
al1tonyota said:
About how much hp did that buggy have? An I think I've seen somewhere that u had 4.88 gears in the diffs. U don't think the 4.56 in mine will need the 3.8 gears do ya?
tommy450r
Well-Known Member
I can't afford a hero case right now. Being i need a little more motor and a tcase. I can go with the atlas an build my motor for about the same price as a hero.
An I figure if the atlas did give me trouble I could fix it an still sell it for a few hundred less than what paid an get a hero then.
An I figure if the atlas did give me trouble I could fix it an still sell it for a few hundred less than what paid an get a hero then.
patooyee
Well-Known Member
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- Sep 27, 2008
- Messages
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I know lots of people who seem to believe that 2:1 t-case and rockwells are the PERFECT ratio for V8 rigs with decent power. I'm not sure that I believe that it is PERFECT but I do think that it is the closest to perfect that is possible without t-case ratios that until recently were only made available with a Hero. So if we go by that school of thought the perfect t-case * axle ratio is somewhere around 13:1.
3:1 case * 4.56 axle = 13.68:1.
I am currently 3:1 in the case with rockwells which puts me around 20:1. I have 400hp. I can romp it in low range in any gear but sometimes I do wish I had a bit more wheel speed in 3rd gear. The thing is that I can't always hold 1st gear high on a steep hill with traction which is 16.7:1. So that means that somewhere between 16.7:1 and 20:21 is a small zone where I wouldn't be happy which is why I think that 13:1 is still a bit too high for 400hp.
But 20:1 would be WAAAY too low with 500hp like you say you are going to. I would definitely want closer to 13:1 if I had 100 more hp. Hence my suggestion to do 3:1. I think you could live with a slight lack of power (if it even existed) in 3rd high until you bought another 100hp.
My personal theory is that 17:1 is my ideal ratio. But without putting Gearhart gears in my axles (which I can't afford) and without going to a Hero (which I also can't afford) that ratio is impossible to achieve.
Just my $0.02.
3:1 case * 4.56 axle = 13.68:1.
I am currently 3:1 in the case with rockwells which puts me around 20:1. I have 400hp. I can romp it in low range in any gear but sometimes I do wish I had a bit more wheel speed in 3rd gear. The thing is that I can't always hold 1st gear high on a steep hill with traction which is 16.7:1. So that means that somewhere between 16.7:1 and 20:21 is a small zone where I wouldn't be happy which is why I think that 13:1 is still a bit too high for 400hp.
But 20:1 would be WAAAY too low with 500hp like you say you are going to. I would definitely want closer to 13:1 if I had 100 more hp. Hence my suggestion to do 3:1. I think you could live with a slight lack of power (if it even existed) in 3rd high until you bought another 100hp.
My personal theory is that 17:1 is my ideal ratio. But without putting Gearhart gears in my axles (which I can't afford) and without going to a Hero (which I also can't afford) that ratio is impossible to achieve.
Just my $0.02.
mna0121
Well-Known Member
Well I bet that will pretty much end this thread!! RTR
al1tonyota
Well-Known Member
Never put it on a dyno but atleast 450hp at the crank. Yes it had 4.88 but there isn't a lot of difference in 4.56. I had a 3.8 case first and stayed in 2nd and 3rd and would just ride the limiter way to much!tommy450r said:
About how much hp did that buggy have? An I think I've seen somewhere that u had 4.88 gears in the diffs. U don't think the 4.56 in mine will need the 3.8 gears do ya?
patooyee
Well-Known Member
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- Sep 27, 2008
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- 5,692
1tfrot said:
You're at the same 20:1 I am and wish you had a little more speed in 3rd low like I do. That should tell the OP a lot. Even moreso when you consider that an OD gear would put your low range at 13.9:1 which is where the OP would be with a 3.0 case.
tommy450r
Well-Known Member
I def owe u guys a cold drink one day. Thanks for all the help!!! I'm gonna try an get a case ordered tomorrow morning
patooyee said:
yes sir. that's why I posted. was hoping it would help others. I'm not even close to bouncer status
but figured some #s and opinions might help someone. I'm happy with my setup, but the mph in low range would be the only change I would do if I could.
thanks for the #s too. it's cool seeing how it plays out on paper
