Solution for the Reduced Redline in 6th Gear?

[67Fast_V]

As I'm sure many know, that for A10's with no drive modes like Sport or Sport+, Track, etc, the redline is reduced in 6th gear to ~6900 rpm (fuel/ignition cut-off). I believe drive mode cars don't have this issue, but please correct me if I'm wrong.

Question: Does anyone know if there is a solution to this issue through the Ford Dealer? I asked my local dealer and they have no experience in this area. Of course I could have an aftermarket tuner chase this out, but clearly there are implications with doing this.

Just wondering if there is a Service Bulletin or Advisory or Factory mod that is available? Or if someone that has purchased the Ford Performance cold air kit for the 18' & up and that ended up fixing the issue for non-drive mode cars. I posted this question to thread on the Ford perf kit, but figured might be better to include it here in the Trans section.

Thanks for the time and assistance. Cheers.

Sponsored

 

[gmupatriot]

I have drive modes and even using manual shifting I cannot go to redline in 6th. Hopefully someone has an answer for you.

 

[WD Pro]

I don’t know how the ratios work out, but is it the speed limiter that’s kicking in and not a rev limiter ?

WD

 

[67Fast_V]

I have drive modes and even using manual shifting I cannot go to redline in 6th. Hopefully someone has an answer for you.

Interesting. Thanks for sharing. I assume that when you use Track mode and let it shift on its own that it will still take 7th at ~6800-6900 rpm, Correct?

I wonder how these shops are dyno testing 2018 & up cars, stock ... Must be in 5th gear. Maybe I need to look through the dyno section for comments to confirm.

@WD Pro .... its not vehicle speed. Not sure whether the ECU or TCU for that matter has a tranny shaft speed limit that is triggered but in any event, when you reach ~6900 rpm in 6th which is 119-126 mph depending on tire size, the engine will cut-off just like it does at 7500 rpm in the lower gears.

 

[Andy13186]

get a tune , my redline is over 8000 in all gears now

 

[gmupatriot]

Interesting. Thanks for sharing. I assume that when you use Track mode and let it shift on its own that it will still take 7th at ~6800-6900 rpm, Correct?

I wonder how these shops are dyno testing 2018 & up cars, stock ... Must be in 5th gear. Maybe I need to look through the dyno section for comments to confirm.

@WD Pro .... its not vehicle speed. Not sure whether the ECU or TCU for that matter has a tranny shaft speed limit that is triggered but in any event, when you reach ~6900 rpm in 6th which is 119-126 mph depending on tire size, the engine will cut-off just like it does at 7500 rpm in the lower gears.

Correct, no matter which mode and regardless of if I let the computer shift or I try to shift myself, cannot get past the 6800 rpm limiter in 6th. The car will automatically shift into 7th if I am not in manual mode regardless of which mode I am in (Sport, Sport +, Track, Drag, etc)

 

[Radar Doc]

I believe the "WOT shift map" in the transmission programming has primary control for shifting at WOT. The FRPP tune does not change this map on a 2020 Mustang GT 10R80 with drive modes. Here's a snapshot of the table from the FRPP tune:

 

[67Fast_V]

I believe the "WOT shift map" in the transmission programming has primary control for shifting at WOT. The FRPP tune does not change this map on a 2020 Mustang GT 10R80 with drive modes. Here's a snapshot of the table from the FRPP tune:

Thanks Doc. This is great info and very helpful. Appreciate that .

Sponsored