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HO vs SO driving/acceleration

CdnHO said:
With lockdown in Ontario I don't want to give the cops an excuse to stop me to ask why I am not at home. However I was out a couple of days go and passed a car that was chugging along at 50 mph (50 mph zone) and when I floored the accelerator it just went. No lag. I do have a 4.10 axle so that may make a difference as it keeps the rpms a little higher. Or maybe I am just lucky that I got a truck without a lag.
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Where you in T/H? That would have your RPM’s higher as well as not up shifting to 5th or 6th. In Drive with T/H off, it’ll up shift to higher gears even though your going slow.
 
I really appreciate everyone’s feedback for so far.
RV, what you are talking about is exactly what I don’t want and know what you are saying. I have driven like that before and it’s a little bit of a PITA to have to set your truck up to accelerate. With my wife driving sometime I can’t have that.

It is great to hear those of you with the newer HO’s and not having any problems accelerating. I hope to hear more about that from others.

I hope a few others chime in about SOs with trans tuning and how the truck responds.

I have heard good reviews of the pedal monster, but to me when I put the pedal to the floor and I am wanting the truck to respond, it’s not doing anything for me at that point since it is just a sensitivity device in my mind. I will read up on it more.
 
raggdoll said:
LOL, cops have no right to stop you to ask why your not at home, come on man.
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Yeah they did in Ontario under the Covid "Stay at Home" order. It was later rescinded so now they can't randomly stop you to ask but if they stop you for a traffic offense, they can ask and if you don't have a valid reason it's a 750 dollar fine. We have a Communist goverment here.
 
CdnHO said:
Yeah they did in Ontario under the Covid "Stay at Home" order. It was later rescinded so now they can't randomly stop you to ask but if they stop you for a traffic offense, they can ask and if you don't have a valid reason it's a 750 dollar fine. We have a Communist goverment here.
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We are headed that way fast with our current admin.
 
CdnHO said:
Yeah they did in Ontario under the Covid "Stay at Home" order. It was later rescinded so now they can't randomly stop you to ask but if they stop you for a traffic offense, they can ask and if you don't have a valid reason it's a 750 dollar fine. We have a Communist goverment here.
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None of this will stand up in a court of law.
 
I have a '21 S.O. 68rfe and throttle response has been great. I only have 1k miles on it so far (500 break in, 500 towing) but haven't experienced an instance yet where I get a lag of any kind. All mixed driving, highway and lots of low speed. I'm also used to driving stock diesels so I'm not sure if I just roll into the throttle right and don't notice it. I took a gamble with the 68rfe as I'll be towing every day working this truck and I know the Aisin is the right answer for this, but we also have an older 68 that has been totally fine for us. I've also seen 10-11 mpg towing on the lie-o-meter but I'm sure I haven't got a good enough driving sample yet with only 1k miles. So far this truck drives incredibly well for my use case. Hope this helps.
 
CdnHO said:
No. NOT in T/H
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4:10 is probably the difference then. I wanted 4:10, but only 3:73 available for the 3500 SRW. I waited until the 3:42 were discontinued to purchase my SRW.
 
Nd79 said:
I have a '21 S.O. 68rfe and throttle response has been great. I only have 1k miles on it so far (500 break in, 500 towing) but haven't experienced an instance yet where I get a lag of any kind. All mixed driving, highway and lots of low speed. I'm also used to driving stock diesels so I'm not sure if I just roll into the throttle right and don't notice it. I took a gamble with the 68rfe as I'll be towing every day working this truck and I know the Aisin is the right answer for this, but we also have an older 68 that has been totally fine for us. I've also seen 10-11 mpg towing on the lie-o-meter but I'm sure I haven't got a good enough driving sample yet with only 1k miles. So far this truck drives incredibly well for my use case. Hope this helps.
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Just towed my fifth wheel for the first long trip this weekend. In 250 miles I averaged 10 on the dash and 9.8 hand calculated in a 2020 HO.
 
I currently have a 2016 with the G56 manual trans. I have a '21 3500 SO ordered with the 68RFE, I drove both the 68RFE and the HO AISIN and they both seemed to have a lot less torque management than my current truck. I chose to order the SO because I won't be towing daily and I liked how it drove, it did seem to have good throttle response.
 
Nd79 said:
I have a '21 S.O. 68rfe and throttle response has been great. I only have 1k miles on it so far (500 break in, 500 towing) but haven't experienced an instance yet where I get a lag of any kind. All mixed driving, highway and lots of low speed. I'm also used to driving stock diesels so I'm not sure if I just roll into the throttle right and don't notice it. I took a gamble with the 68rfe as I'll be towing every day working this truck and I know the Aisin is the right answer for this, but we also have an older 68 that has been totally fine for us. I've also seen 10-11 mpg towing on the lie-o-meter but I'm sure I haven't got a good enough driving sample yet with only 1k miles. So far this truck drives incredibly well for my use case. Hope this helps.
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The 19+ 68 has a reworked valve body that Revmaxx said is awfully familiar to their upgraded design (FCA copied them LOL). The 68 is a good trans. It gets a bad wrap from the 20 year old crowd that takes a used truck, slaps a huge power tune on it, then tries to drive around like Johnny Racecar. If you leave the truck stock and drive normal it will hold up fine.
 
Millmutt said:
My 2020 3500 SO has great throttle response and trans shifts great as well. Plenty of power. In day to day driving it drives like a normal gas vehicle. I glad I chose the SO
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You know, that is a good point. It really does drive a lot like a gas truck unloaded and not towing. That was one of the few reasons I stuck with the 68 again, because my wife will be driving the truck on occasion and I had read how in certain instances the Aisin trans can "stumble" at low speeds. I didn't want a steep learning curve for her since she's never driven a diesel truck before this one. I've also read that for '21 they have mostly fixed that with the Aisin tuning.
 
I describe my truck's driving performance when not towing like driving a manual transmission in too high of a gear without downshifting--it will eventually gain some speed, albeit very slowly. Yesterday, I was towing my travel trailer. I tried to pass another truck and trailer and held my foot into the accelerator for a good 12-15 seconds before it would do anything. Once the transmission decided to downshift, it took forever to get enough speed to actually pass.
 
Maybe its a Cummins thing. I know its heresy to speak ill of them on here, but I hated Cummins engines in the Class 8 world. Granted, my bosses were always cheap and bought the vocational flat-lander engines like the ISL and ISM but those things were dogs. No low end torque, loved high RPM. Super fast deceleration. If you could jake shift a Cummins you were a super trucker because those RPMs were going to drop like a rock as soon as you drop out of a gear. Both those turd engine models loved anything over 2,000RPM. There's a cheesy line in the cheesy movie "Black Dog" where Swazye says "ain't nothing like a Caterpillar engine" as he pushes a truck with it's brakes locked up a hill ( :rolleyes: ) . I would say other than the turdy C7 I was stuck with in a Ford F750 pulling a Deere 410 Hoe, I would agree. You could be loaded crawling at 5mph in 8th gear and stand on the throttle and a cAt would growl and eventually pull you up to redline with all that torque. I drove a 10-wheel dump transfer that was bobtail once with a 3406E and a 10 speed. Unloaded, get it into 10th at 45mph and sure as sugar you could race and beat turdmobiles (Sentras, Corollas...etc) down on-ramps with that beast lol.
 
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