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GraphiteDak
GenIII
 
11/19/2005
20:40:43
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 Subject: 4.56 with LSD is SCARY in a turn!
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This 5-45RFE is so facking TIGHT when it shifts now, that the rear end kicks out at LEAST 1 foot during the 1-2 shift if I get on it during a wide left hand turn onto another street! This is at approx 35 MPH.
It's fun, but scary at the same time.
Anyone who talks negative about the 5-45RFE fully electronic tranny needs to be slapped silly :)
Meanwhile, I was just over at the Bro in laws while he AGAIN pulls his tranny pan messing with adjustements after doing a B&M shift kit in his 46RE that STILL don't shift as good as mine does with the programmer!
He's mad because it STILL shifts early when shifting on it's own. Approx 4500 RPM's. Mine shifts at 5500 on it's own. And I can hold mine to 6500 manually.
I have never dropped my tranny pan...
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DSW
Dodge Dakota
JOIN HERE
11/19/2005
21:05:16
| RE: 4.56 with LSD is SCARY in a turn!
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Graphite, how long have you had the Firestone air bags? Post something on them, price, kit available, pics would be great also. I put the Roadmaster Active Suspension on my 03 QC, great for towing, but don't like it unloaded.
I really liked having air shocks on my last truck, could pump them up while towing and deflate them for normal driving. Heck I even took the bottom (heavy overload) spring out of the rear leaf springs which made the truck drive better unloaded, but didn't affect the load capacity once the shocks were inflated.
Speaking of shocks, I replaced the stockers on my truck because they SUCKED. Monroe Reflex shocks are MUCH better thn the stock shocks, I don't feel like I am going to fly off the road anymore ;-)
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GraphiteDak
GenIII
11/19/2005
21:20:50
| RE: 4.56 with LSD is SCARY in a turn!
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I got the air bags about a week and a half ago. Just before I towed to the dunes.
They are rated 5,000 Lbs. Costed 300 bones too!
The metal brackets are heavy duty too.
And unlike air shocks, these have a schrader valve per air bag. The good thing about that is that air doesn't flow from one to the other in a corner making it LEAN worse.
Did you see my pix of the Toy Hauler on my Dak?
The air bags made it level and ride GREAT!
I think i was towing more than 7,000 Lbs.
Go to my website. I think the html is still turned off here or I'd post the pix in the thread.
<b>Test</b>
Nope. HTML still off.
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95V6
GenII
11/20/2005
03:45:30
| RE: 4.56 with LSD is SCARY in a turn!
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Graphite, rear end kicks out during turn? It might be fun, but I'm not sure it supposed to do so with LSD. It is behaviour of locked diff. LSD is supposed to be fast enough to transfer the torque to prevent kicking out. Anyboldy else had this experience? I don't know, maybe it's normal with LSD and big V8.
95 3.9L 4WD V6, K&N, Gibson exh, JBA hdrs, JET stage II, MSD 6A, Rancho shocks and more..
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Kowalski
GenIII
11/20/2005
07:14:18
| RE: 4.56 with LSD is SCARY in a turn!
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It's normal - just think about how LSD works. It transfers power to the wheel that's not going as fast as the other. So coasting through a turn you won't likely know it; but power through a turn and it has no way to know you are turning - it just tries to power the inside wheel to go as fast as the outside wheel in the turn - lighting up the inside wheel and loosing traction.
Lead, follow, or get out of the way
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toolfan
GenIII
11/20/2005
11:41:40
| RE: 4.56 with LSD is SCARY in a turn!
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that awesome GraphiteDak!! i think i would kill myself for when i drive through the canyons i have had my truck go sideways and that's with a open diff.
and some mods to slow it down!
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318SPRT
Dodge Dakota
JOIN HERE
11/20/2005
12:22:27
| RE: 4.56 with LSD is SCARY in a turn!
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Happens to me too. 3.91 gears w/ 5.2V8/44RE auto/4x4. I just did it last night. all I have is a 10x3 K&N open element, jet chip (stage 1)(soon to be superchips). I don't even have to powerbrake it. I just floor it and it spins the tires for a couple seconds. That's w/ 31" tires too. accelerating around a turn is even worse.
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quick96z
Dodge Dakota
JOIN HERE
11/20/2005
15:22:18
| RE: 4.56 with LSD is SCARY in a turn!
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You got this kind of 'directness' from your tranny by simply using a superchips tuner?? That is really the only complaint I have about me 00 4.7 4wd dakota..the tranny really seems like it doesn't quite know what it wants to do and on part throttle shift it seems really sloppy. I swapped all the old tranny fluid and put in some fresh ATF+4, and a new tranny filter a couple of weeks ago, but it still behaves the same away. I would love it if my truck had a little more snap when it shifts...so maybe I should look into one those tuners.
Is it torque management that retards the timing and makes it really seem gutless sometimes?? I am more of a GM guy, and I know that the 4.8/5.3/6.0 trucks are constantly having to deal with torque management cuz GM knows that the crappy 4L60E would not last too long under a 2 ton truck that is making some good power even for a stock motor.
Again, I really like the 4.7, the thing is just a little torque monster below 3,000 RPM, which is exactly where you want the torque in a truck. But my main complaint is that the tranny seems so indecisive...what do you guys think??
trav
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quick96z
Dodge Dakota
JOIN HERE
11/20/2005
15:34:13
| RE: 4.56 with LSD is SCARY in a turn!
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Also, isn't there typically a MPG increase also when a tuner is used?? I already have Mobil 1 in the front and rear axles, and new fluids in the transfer case and tranny and I am averaging 14-16 MPG depending on conditions and how I drive that week. I would like to see another 3 or 4 MPG, what kind of experience have you guys had?
Come on guys, I'm trying to talk myself into getting one, kind of a christmas gift to myself ;)
Trav
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toolfan
GenIII
11/20/2005
16:59:12
| RE: 4.56 with LSD is SCARY in a turn!
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quick96z
yes they can help with gas mileage because the trannys will no longer rev before shifts. i would go with the superchips i haven't heard one person be upset. i think graphite has a different tranny than you but i bet you will still get good gains.
the Chevy engines that they're using have no low end grunt. my 5.2 will eat the 5.3 off the line and all the way down the 1/4. i still like the new Chevy engines just isn't a good truck engine it doesn't start making power until 3000rpm.
and some mods to slow it down!
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GraphiteDak
GenIII
11/20/2005
20:42:39
| RE: 4.56 with LSD is SCARY in a turn!
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I think "quick96z" is the only guy that caught my drift in this post :)
I have had vehicles where I have doctored the tranny's to snap your neck and rip the tires during the 1st to 2nd shift and do what I'm doing now.
The 5-45RFE was felt by many as HOPELESS with the torque management.
Not any more :)
On part throttle it's pretty normal.
2/3 to full and it barks the tires.
Hit the gas from a dead stop and take a left hand turn on heavy throttle and it barks the tires during the 1st to 2nd shift as the a$$ end of my truck slides sideways about a good foot. Sometimes more! Before the gear swap I wasn't shifting that early. But now with the 4.56 gears and LSD it gets to 40MPH really quick.
The shifting in the turn and going sideways was INTENTIONAL guys :) I was not really posting it as a problem. Was just razzing the guys as few of us have commented about the awesome inprovement of the SuperChips with a 5-45RFE tranny.
It's actually to the point where it is better than a 46RE with a nice shift kit. A 46RE would need LOTS of mods by a tranny man to match the 5-45RFE now.
I think I will make a video of it next weekend. If I can get my bro in law or someone to stand on a corner with my video camera. Videos always speak louder than the posts themselves :)
Click on my signature to see the other videos...
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95V6
GenII
11/20/2005
22:36:48
| RE: 4.56 with LSD is SCARY in a turn!
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Kowalski, thanks for the explanation. It makes sense.
95 3.9L 4WD V6, K&N, Gibson exh, JBA hdrs, JET stage II, MSD 6A, Rancho shocks and more..
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GraphiteDak
GenIII
11/21/2005
10:48:30
| RE: 4.56 with LSD is SCARY in a turn!
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FYI, my LSD does no magic transfering power form one wheel to the other. It just looks to have spring loaded pressure plates resisting the spiders from turning.
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deerridge
GenIII
11/22/2005
11:26:08
| RE: 4.56 with LSD is SCARY in a turn!
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The solution to that traction loss in a curve is AWD tacked in with the LSD. The only way I can spin a tire is full power and a wet or icy road.
Real Horsepower
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GraphiteDak
GenIII
11/22/2005
12:19:39
| RE: 4.56 with LSD is SCARY in a turn!
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Message:
YUP. Deeridge has the best control.
To be honest. On RWD vehicles it is actually MORE dangerous with LSD or a locker on snow/ice.
They make the rear open on purpose. Besides allowing one wheel to turn faster than the other in curves, the stationary tire keeps you stabalized where when you have two that spin, you go sideways before you know it.
LSD is great. But you have to be careful on ice.
That's when I click mine into 4HI and it makes a world of difference! :)
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