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Old 09-27-2018, 11:31 AM   #18401
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Quote:
Originally Posted by bracker8040 View Post
If a compound turbo arrangement is slow and lazy, and idiot speced the turbos, another idiot probably tuned it, and most likely there is an idiot driving it.
A factory Cat compound arrangement isn’t lazy, especially with some fuel added to it.
Maybe you dont know what is not lazy ?
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Old 09-27-2018, 01:02 PM   #18402
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Do any of you have experience with heavy Allison software configuration?
I have one that shifts up too soon in a service truck.

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Old 09-27-2018, 01:28 PM   #18403
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Originally Posted by Leiffi View Post
Maybe you dont know what is not lazy ?
I daily drove a single turbo, 750hp diesel pickup for several years. It was fairly lazy, but I’d be willing to bet it still is more responsive than your Volva.
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Old 09-27-2018, 08:35 PM   #18404
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Originally Posted by biggy238 View Post
Do any of you have experience with heavy Allison software configuration?
I have one that shifts up too soon in a service truck.

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What year? Some of the older ones can be changed without reflashing. Change from economy to performance makes a huge difference. Newer ones need a new flash.
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Flipping your mirrors up when you don't tow? That serves no purpose other than to let me know that you are a douche, from a distance.
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Old 09-27-2018, 08:56 PM   #18405
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Brand new. I'm locked out because I don't have dealer level DOC, but I have a friend at Rush PB. He just wasn't familiar with what to go after.

You are absolutely right about the huge difference. I ran a 4900SB dump back from Nashville and it's pulling a sub 10 second 0-60. X15 & 3K series trans.

The problem truck (ISL 4700) is aggressive on 1-2 & lockup and then stacks everything past lockup to the point you have no torque curve left, which sucks to drive.

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Last edited by biggy238; 09-27-2018 at 09:01 PM.
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Old 09-28-2018, 03:11 PM   #18406
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Isnt there present files like soft/aggressive or am I thinking of the auto****s?

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Old 09-28-2018, 08:28 PM   #18407
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Truckers, lets see your rigs!

Quote:
Originally Posted by chevota84 View Post
Isnt there present files like soft/aggressive or am I thinking of the auto****s?

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The some of the older Allison’s had them you just needed DOC and you could select the shift schedule you wanted (economy, performance, vocational etc) but the newer ones need a totally different flash. I’ve got the flash files but never tried one.

But like he said just like the Ultrashift junk economy is horrible to drive. Shifts too soon on a pull and falls on its face. But some don’t do well with the 2100rpm performance setting either they hang at high RPM, have to go to 1800rpm performance.

IMO if you buy an autoshift truck you deserve what you get. Only one guy here gets a pass because he was born without his right arm. And he didn’t want one, was forced on him by feds. Drove a manual for years with no issue but the highway patrol always gave him crap.

If you want an auto get an Allison.
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Flipping your mirrors up when you don't tow? That serves no purpose other than to let me know that you are a douche, from a distance.
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Old 09-30-2018, 06:42 PM   #18408
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Anyone know on an eaton clutch the difference in a pre-damper vs no pre-damper?
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Old 09-30-2018, 07:15 PM   #18409
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One of them has a pre damper and the other one doesnt

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Old 09-30-2018, 07:30 PM   #18410
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One of them has a pre damper and the other one doesnt

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Gee. Thanks. Ill rephrase it. Has anyone used both and noticed a difference
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Old 10-01-2018, 04:11 PM   #18411
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I see this threads still as entertaining as ever. I finally got my cat all put back together and have around 5k miles on it so far. Damn good to be back on the road after being home for 6 weeks.

Oh and lef you can keep your gay euro trucks over there. Only good thing about a volvo is if I ever turned into a deuche bag I could sell my 18 year old Pete and get 3 newer low mileage volvos. Our old American iron is worth rebuilding your trucks are throw aways.
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Old 10-01-2018, 04:47 PM   #18412
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Gee. Thanks. Ill rephrase it. Has anyone used both and noticed a difference


Never paid attention, just put them in a go. Although the I hate the new pressure plate design with the anvil plate attached to it. They can suck a big one. Looks to me the new style just added another failure point like the stupid springs. Rarely do clutches wear out, it’s almost always a broken spring.
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Flipping your mirrors up when you don't tow? That serves no purpose other than to let me know that you are a douche, from a distance.
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Old 10-02-2018, 06:45 AM   #18413
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Anyone want to try and paint picture of what happend here?

Ill tell ya this...dig deep in your imagination.

Click the image to open in full size.Click the image to open in full size.Click the image to open in full size.

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Old 10-02-2018, 06:48 AM   #18414
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looks like it slid off the driveway into some trees. Not sure how tho. Man thats cool they have working old iron like that!
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Old 10-02-2018, 07:29 AM   #18415
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Well sort of. Rewind to sunday night. I was over hunting my buddies dads farm. Got done and was leaving, got down driveway and he was down there unloading the international off a low boy. It wouldn't run, we tinkered with it and changed fuel filter and got it running. Well he told me we had to be careful because it had no breaks, and we just needed to get it off the road. ok, easy enough.

Well I guess yesterday afternoon he went to move it up the hill to his shop to mess with it some. Due to how it was placed at bottom of the hill, he had to back it up driveway. He made it about 50 yds off the road and reverse gear gave up the ghost. Truck immediately went back down the driveway towards the road. He tried to put it in a bank but 36klbs had other intentions, thus the cherry tree stuck in bead. He went all the way acorss the road into neighbors driveway, across a sketchy a$$ bridge and about 40 yds up the neighbors driveway before it didn't make the turn and went off the road there. Had to jack front end up twice to turn wheels, using a whole handful of chains, and that old Hendrickson to winch back on road. Finally we got it back on the driveway half way straight with no breaks and no reverse gear. Got it lined up and let it fly coming back across bridge, praying the bridge had one more time in it. But we got it. There was some butt puckering on all fronts that's for sure.

My buddies dad has a pile of these old wreckers. He owns a tow company, and collects old wreckers. You name it, he probably has it.

That red henrickson they drove back from Minnesota 2 years ago. Only had one tire blow out on ride home. Its a neat old truck, and good bit of fun to drive. My favorite is, I believe a 66 autocar. I have posted pics of it before I think. Natural cummins. Need a 40 acre field to turn it around, but man its neat. And still works. He doesn't use any of them for recovery these days really, but we end up using them or odds and ends around the farms.
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Last edited by Smokinrebel; 10-02-2018 at 07:31 AM.
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Old 10-02-2018, 02:46 PM   #18416
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Looking at a truck with an MBN in it.
Originally 500hp, currently has a 7CZ file in it, upgraded charge air cooler, Pittsburgh Power manifold, and a Borg Warner S430SX.
Current owner has owned it for 700,000 miles. Seems to be very well taken care of.
What are the thoughts on the MBN, and anything in particular I should look out for?
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Old 10-02-2018, 02:52 PM   #18417
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We've put about 700K miles on ours. New head under warranty at about 400K miles.

Chris
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Old 10-02-2018, 03:18 PM   #18418
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Looking at a truck with an MBN in it.
Originally 500hp, currently has a 7CZ file in it, upgraded charge air cooler, Pittsburgh Power manifold, and a Borg Warner S430SX.
Current owner has owned it for 700,000 miles. Seems to be very well taken care of.
What are the thoughts on the MBN, and anything in particular I should look out for?


Other than cam/injectors/turbo and ecm flash its a 6NZ. He’s already taken care of most of it.
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Flipping your mirrors up when you don't tow? That serves no purpose other than to let me know that you are a douche, from a distance.
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Old 10-02-2018, 04:53 PM   #18419
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They are solid engines. Rarely see them in the shop.

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Old 10-02-2018, 05:24 PM   #18420
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700k wouldn't scare me one bit. Put the 800 marine cam in it with what's currently done and it'll be all kinds of fun to drive.
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