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-   -   SCT Tuner for V10 (https://www.thorforums.com/forums/f8/sct-tuner-v10-23542.html)

KKV 09-24-2020 08:21 PM

SCT Tuner for V10
 
Have completed a full suspension upgrade on our Thor ace 30.2. The mechanic who did the installs mentioned tuners on the market that have a positive impact on engine performance. He said the biggest thing he hears is more active shifting and itís a noticeable improvement. Anybody have experience with these tuners and profiles?

Pete'sMH 09-24-2020 09:07 PM

What year is your ACE? Or more specifically, does it have the 5 or 6 speed transmission? I bought the 5 Star for my 5 speed coach and it did help with the shift points, reducing the downshift for every little hill. Wasnít a magic cure all though. I did not find any advantage for the engine performance. I subsequently bought a newer coach of similar size to yours with the 6 speed transmission and I do not plan to purchase the tuner for it.

KKV 09-24-2020 09:29 PM

Thanks. It's a 2017 on standard F53 chassis. D321 is what I've got.



Quote:

Originally Posted by Pete'sMH (Post 256537)
What year is your ACE? Or more specifically, does it have the 5 or 6 speed transmission? I bought the 5 Star for my 5 speed coach and it did help with the shift points, reducing the downshift for every little hill. Wasnít a magic cure all though. I did not find any advantage for the engine performance. I subsequently bought a newer coach of similar size to yours with the 6 speed transmission and I do not plan to purchase the tuner for it.


Pete'sMH 09-24-2020 10:06 PM

Quote:

Originally Posted by KKV (Post 256544)
Thanks. It's a 2017 on standard F53 chassis. D321 is what I've got.



Thatíd be the 6 speed transmission. Frankly, based on my experience, I wouldnít spend the money for the 5 Star. Other than altered shift points (that the 6 speed doesnít need) I did not find any benefit. Youíll probably find others who disagree but thatís my experience.

The_Breeze 09-24-2020 10:13 PM

Here's what I do, not that you have to follow.

When I see a small grade, I turn off the CC and use my foot. If she downshifts then, I let her and slow down so she doesn't pop to 4k+. 3 is the max I allow. If you can see the grade coming and you time it right, you can gain speed to help.

It's not a complete cure depending on the grade and it's length but I've achieved 8+ mpg towing a 3500lb towed.

Beau388 09-24-2020 11:21 PM

Quote:

Originally Posted by KKV (Post 256531)
Have completed a full suspension upgrade on our Thor ace 30.2. The mechanic who did the installs mentioned tuners on the market that have a positive impact on engine performance. He said the biggest thing he hears is more active shifting and itís a noticeable improvement. Anybody have experience with these tuners and profiles?

Do a search for 5 Star Tuning on this site and you will have couple days reading. I have a Sept 2015 F-53 18,000 lb chassis with 6-sp. The engine was ok but the transmission shifting profile was terrible. I worked with 5 Star to get the shifting in normal and tow/haul to suit my needs. It took three tries to get a tune that fit my needs. 5 star stuck with me all the way, happy trying to please me.

If you are looking for a notable power increase or better fuel mileage a 5 Start tune, is not what you want. If you want would like different shift points and a more responsive throttle pedal, then this could be your answer. I am a very happy customer after 4 years and 27,000 miles.

16ACE27 09-25-2020 12:53 AM

Quote:

Originally Posted by The_Breeze (Post 256559)
Here's what I do, not that you have to follow.

When I see a small grade, I turn off the CC and use my foot. If she downshifts then, I let her and slow down so she doesn't pop to 4k+. 3 is the max I allow. If you can see the grade coming and you time it right, you can gain speed to help.

It's not a complete cure depending on the grade and it's length but I've achieved 8+ mpg towing a 3500lb towed.

Why turn off the cruise control? Just push the right pedal to speed up and help the cruise control overcome its inability to anticipate the upcoming hill. Take you foot out of it as you crest the hill and let Otto resume control.

KKV 09-25-2020 03:14 PM

Quote:

Originally Posted by Beau388 (Post 256578)
Do a search for 5 Star Tuning on this site and you will have couple days reading. I have a Sept 2015 F-53 18,000 lb chassis with 6-sp. The engine was ok but the transmission shifting profile was terrible. I worked with 5 Star to get the shifting in normal and tow/haul to suit my needs. It took three tries to get a tune that fit my needs. 5 star stuck with me all the way, happy trying to please me.

If you are looking for a notable power increase or better fuel mileage a 5 Start tune, is not what you want. If you want would like different shift points and a more responsive throttle pedal, then this could be your answer. I am a very happy customer after 4 years and 27,000 miles.



Thanks. Will check it out.


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