RP Surge (Highway Speed)

[Jeff@Spartan]

I don't have a rail pressure surge, but I do get a weird shake between 45-60 MPH that seems similar to what Dustin was talking about. It's like my truck is bouncing right after the converter locks. It's not touchy throttle because I have the issue with all tunes, not just big tunes. Knowing my truck, it's probably something driveline related. :doh:

 

[WoodBoy]

Have you tried your LL tunes to see if it does it then too Jeff?

 

[Jeff@Spartan]

It does it with all tunes. That's why I think it's the torque converter....or something in the driveline.

 

[3brorce]

I was looking to convert back to an older ford flash also so that my truck would fuel harder but not if I get a shutter that is as bad as you all say.

 

[gman1]

I was looking to convert back to an older ford flash also so that my truck would fuel harder but not if I get a shutter that is as bad as you all say.

You may be one of the lucky ones because not all trucks have this issue. Its not bad you just have to use the tow/haul button if you want to cruise around 55 mph. I can live with that as long as I dont have to get the newest flash.

 

[Worstenemy453]

Has anyone tried RCD tunes ?

 

[3brorce]

You may be one of the lucky ones because not all trucks have this issue. Its not bad you just have to use the tow/haul button if you want to cruise around 55 mph. I can live with that as long as I dont have to get the newest flash.

ok thanks. i might as well get all the power i can. usually cruise more around 50, 60, 70

 

[WoodBoy]

I swapped to the street tune, didnt do it on the 9 miles home and I tried everything i could to get it to do it and stay in the general area. I talked to Ted, he wants me to try the street and report back, but ill prolly go ahead and try the exrace too and make sure it doesnt do it (i hope)

 

[dstryr]

Mine did this too and that was erics response when I emailed him. It went away when I put the OUO traction bars on.

 

[WoodBoy]

Mine isnt touchy throttle, definately FRP surge. I got bars.

You OUO guys, how much are your bars loaded for everyday driving and a little gettin on it? What about the track how much load?

 

[dstryr]

Loaded? I don't understand your question....?

 

[WoodBoy]

Arent OUO bars adjustable in length so that you can load (put pressure against) your axle? in an opposing force to axle wrap

 

[MINK]

Arent OUO bars adjustable in length so that you can load (put pressure against) your axle? in an opposing force to axle wrap

I would never recomend to load a bar for a dd application

 

[WoodBoy]

Do you leave it completely loose or just snugg or what?

 

[dstryr]

I use the bolt on style that use the new 6.7 flipped ubolts. I bolted the bottom bracket under the axle and the front bracket to the frame. You then put the bars in while the truck is at ride height and install them there. No loading of them. Loading iirc will introduce binding...

 

[MINK]

Do you leave it completely loose or just snugg or what?

I like my bars snug at ride height.

 

[WoodBoy]

Aight thats how I am currently running mine, do you load them any at the track?

 

[MINK]

Aight thats how I am currently running mine, do you load them any at the track?

I dont - all they need to do is hold the rear end in position.

 

[gman1]

Arent OUO bars adjustable in length so that you can load (put pressure against) your axle? in an opposing force to axle wrap

The adaptable OUO bars are so you can mount the ends any where on the frame that suits you. It has nothing to do with pre load. Like someone already mentioned the truck has to sit a ride height to install the bars right.

 

[WoodBoy]

Ohh, okay, i thought you wanted to load them some like caltracs when at the track