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Auto V's Manual Off Road

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:::Matski:::
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PostPosted: Sun Jan 31, 2010 21:26    Post subject: Reply with quote

X66DAG wrote:
Hi Mat
On one of the last down hill lanes you and chris were on about not using your brakes for as long as possible,
Had I not been riding the brakes all the way down i'd have over taken the lot of you. I was in 4L and L
Think marky and tim and already left before these lanes.


Ah, the hill down into Bamford. I can do it without the brakes but only just. But that says it all then.

Wonder what the compression ratio is of the 3.0 is? Still, loads use them for proper challenge off roading and proper rock crawling, it's what you get used to I guess. They are better on the climbs, but worse on the descents. Six of one, half a dozen of the other....
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DAVID's J99P
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PostPosted: Sun Jan 31, 2010 21:50    Post subject: Reply with quote

Glad I had an auto going up that first climb,whilst i don't think my auto or tim's manule coped much differently, tim has had green laning
experiance and i was full of dread but with one less pedel to worry about Very Happy
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:::Matski:::
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PostPosted: Sun Jan 31, 2010 21:55    Post subject: Reply with quote

1st rule. Don't change gear while climbing of descending Laughing
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TimBanham
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PostPosted: Sun Jan 31, 2010 22:00    Post subject: Reply with quote

Up hill in an auto would have been easier I would have thought although that could have something to do with experience was using the clutch far too much initially then got hang of creeping realising it would creep up in gear
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:::Matski:::
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PostPosted: Sun Jan 31, 2010 22:09    Post subject: Reply with quote

Yeah, up those steps is first low, don't touch the clutch at all and use as much throttle to keep you going smoothly maintaining momentum. So long as you have clearance and some one spotting you the trick is to not stop and start but keep going maintaining momentum.

You did that perfectly but were as you say riding the clutch a touch. These things have the power to climb anything slope in first low. More than the limit of traction on any surface.

Autos give you the chanse to speed up on a climb as the maintain power while changing up. You can change gear on a climb in a manuel so have to hit it in the gear you want.
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DAVID's J99P
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PostPosted: Sun Jan 31, 2010 22:16    Post subject: Reply with quote

Have you ever climbed the way we came down Mat?
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:::Matski:::
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PostPosted: Sun Jan 31, 2010 22:59    Post subject: Reply with quote

Yes. Out of the three of us that tried it so far I'm the only one to have made it. I don't know anyone else who has done it.

The first truck was a very nice fronty with a big lift and 33s. he blew a CV and bent his center tie rod. The second was Chris who popped the end off his front prop, that said it was more bad luck as he was running a prop with a CV on the end which ran out of travel and popped the cir-clip off leaving the cage to drop off. Don't think he would have made it though.

One of the steps is as tall as a tyre! I found you met a step front and back at the same time often too. I don't think you could make it without a locker, I would love to be proved wrong though!
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DAVID's J99P
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PostPosted: Sun Jan 31, 2010 23:35    Post subject: Reply with quote

Cool
hmmm Does that mean chris is the first to come down in reverse Confused
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PostPosted: Sun Jan 31, 2010 23:50    Post subject: Reply with quote

Nah, he only made it about 4 foot up the steps Laughing
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rich31td
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PostPosted: Sat Aug 21, 2010 21:41    Post subject: Reply with quote

Don't think I have ever used the brakes when going down a slope.

1st gear Low Range, sometimes even need to use a touch of throttle to regain traction.

Up hill I think Auto's do a better job, even better with a 3.9 V8 behind it as My rangie does.
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PostPosted: Sat Aug 21, 2010 21:43    Post subject: Reply with quote

If you find the engine runs away would fitting an exhaust brake help?

Not sure how useful it would be offroad but maybe interesting to find out.
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PostPosted: Sat Aug 21, 2010 21:50    Post subject: Reply with quote

I have had the 3.2 auto for a while now and allthough really nice to drive I would prefer a manual offroad.
BUT, we can test this at buildwas next weekend, there is a nice hill there and we could time the different trucks going down with all feet off pedals  Idea
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rich31td
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PostPosted: Sat Aug 21, 2010 21:57    Post subject: Reply with quote

I know Auto's don't have as low gearing as the Manuals, has anyone fitted the 3:1 transfer case gears?

I prefer the slip you get in an auto and plus you get a torque multiplier effect but down hill the Rangie runs away as it has 32" tires on it.

The Trooper is very controlable and the torque from the diesel is really suited for offroad.
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PostPosted: Sat Aug 21, 2010 23:47    Post subject: Reply with quote

rich31td wrote:
I know Auto's don't have as low gearing as the Manuals, has anyone fitted the 3:1 transfer case gears?

I prefer the slip you get in an auto and plus you get a torque multiplier effect but down hill the Rangie runs away as it has 32" tires on it.

The Trooper is very controlable and the torque from the diesel is really suited for offroad.

They both have the same transfer ratios
1-1 in high
2.283-1 in low
but
gearbox is another matter
Auto 1st is 2.856-1
Manual 1st is 3.767-1

My question now is how fast would a 3.2 manual be  Shocked
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DYLAN
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PostPosted: Sun Aug 22, 2010 2:18    Post subject: Reply with quote

markymoan wrote:

My question now is how fast would a 3.2 manual be  Shocked


Fast Wink  Laughing  Laughing  Laughing
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