6-speed tuned trucks Cruise control

tensixniner · Aug 12, 2012

I find my mileage is better the more I use cruise.
Boost drops one or two psi and fuel pw is also slightly less using cruise instead of my foot.

87jumpy · Aug 16, 2012

Blcksmk08 said:
Always lol. I never go below half. Gets to much bellow that. With the drive out to PA and back i averaged 19.1mpg hand calculated. Pretty good for a 800hp truck. Im definitely lovin cruise with this setup.

That's pretty damn good. I averaged 17.6 on a recent 200 mile trip. Mixed city/interstate 75-80mph. I was impressed. I'm really impressed with my RCD parts.

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87jumpy · Aug 16, 2012

Jared @ River City Diesel said:
Glad to hear that new tune runs well.. told you it would be worth the wait

Let me know when you can tune on the dash daq again. I want to get a tune or two to try out.

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Breaking Habits · Aug 16, 2012

87jumpy said:
Let me know when you can tune on the dash daq again. I want to get a tune or two to try out.

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Josh plans on spending some time @ Spartan as soon as we are moved into our new facility. That should make the process a lot speedier

CAT35niner · Aug 16, 2012

Jared @ River City Diesel said:
Josh plans on spending some time @ Spartan as soon as we are moved into our new facility. That should make the process a lot speedier

Nice. I need some fine tuning and ill be set.

B585Ford · Oct 16, 2012

For what it is worth, I have found out at least with H&S that if you set your tire size to default and keep the speed limiter stock (what fun is that), you should have cruise.

For those of you interested:
http://www.hsperformance.com/1/forum2/64l-powerstroke-tech-questions/21407-no-cruise-in-od-with-6-speed-manual-transmission?limit=6&start=

CAT35niner · Oct 16, 2012

I noticed something that might help. Even with the RCD tune I have, I loose cruise but only if the brake switch circuit throws a code. I cleared it while I was driving and I had cruise again. Its very strange cause it only throws a code every so often.

B585Ford · Nov 5, 2012

I changed the tire size on my H&S to 33.5 (I am still running a 35.5" tire) and the cruise worked. I know at 35.25" my cruise doesnt work. Does anybody know how big you can go on the tire size before you lose cruise?

thebigreddog · Nov 5, 2012

I believe that it will depend on what factory tire size is currently set in the VIN block of the ECM.
Have you loaded TV 6.4.42 yet? It includes the changes from H&S to resolve the loss of cruise in OD issue due to tire size setting. I tested the fix up to the 60" tire setting, and it worked for my truck every time. I've loaded the official release of 6.4.42 now as well, and it continues to remove the issue on my truck.

B585Ford said:
I changed the tire size on my H&S to 33.5 (I am still running a 35.5" tire) and the cruise worked. I know at 35.25" my cruise doesnt work. Does anybody know how big you can go on the tire size before you lose cruise?

B585Ford · Nov 5, 2012

thebigreddog said:
I believe that it will depend on what factory tire size is currently set in the VIN block of the ECM.
Have you loaded TV 6.4.42 yet? It includes the changes from H&S to resolve the loss of cruise in OD issue due to tire size setting. I tested the fix up to the 60" tire setting, and it worked for my truck every time. I've loaded the official release of 6.4.42 now as well, and it continues to remove the issue on my truck.

Thanks for the update. No, I hadn't installed .42 yet. I am really looking forward to having cruise all the time. Thanks.

thebigreddog · Nov 5, 2012

I've been running the fix for about a week now, and it is working flawlessly for me. Having cruise back in OD without shortshifting makes me happy.

BFT · Nov 12, 2012

I've head cruise ever since I tuned my rig. I only use cruise when in final gear on the highway, but I did apply the clutch to see if it disengaged the CC. it came back on, which isn't an issue since I only use it on the highway.

Derail- who has good tunes for the higher HP tunes with no touchy throttle?

jdgleason · Nov 12, 2012

BFT said:
I've head cruise ever since I tuned my rig. I only use cruise when in final gear on the highway, but I did apply the clutch to see if it disengaged the CC. it came back on, which isn't an issue since I only use it on the highway.

Derail- who has good tunes for the higher HP tunes with no touchy throttle?

Gearhead.

BFT · Nov 12, 2012

I guess I have to get a LW

CAT35niner · Nov 12, 2012

I had no issues with Erics tunes. But I lost cruise when I did the build. Gearhead still is trying to figure out the cruise control issue. The only guy that has my cruise working is Josh at RCD and no touchy pedal. But I liked Erics tunes before the build.

B585Ford · Nov 13, 2012

With H&S, my cruise now does work since they released their newest version (.42 and .43 on the MM) .

BogginF350 · Nov 13, 2012

Matt is running a much different setup. No throttle blade, no vgt, do you even have a fuel cooler anymore? All I know is that it was a ton of stuff to change to keep the cruise working.