Does anyone know why it is that your not supposed to tow heavy loads ( heavy loads being over 3,000 lbs ) with the level 2 ( tow ) one the edge evolution CTS? It's in a 2007 F150 4.6L. What setting is everyone using for towing over 3,000 lbs? I was also told not to use the level 3 for towing either.

 

Hi.

Source?

'Tow' is for towing - up to max rated load fer yer truck.

Level 3 is a no-no, however - it's a perf tune - not suitable for a number of reasons ( elevated EGT's, firmer shifts, higher shift points, etc , etc)


MGD

 

Don't tow with your tow tune?

wtf?

 

The tech at edge told me that the level 2 (tow) tune was for up to 3,000# and if over that wieght to use level 1 ( trans only ) or use higher octane fuel in level 2 to avoid detenation.

 

Now Dave - does this sound remotely reasonable to you?

Something this crucial - and it's not in the manual?

L2 is an 87 Tow tune, AFAIK... Adding octane is contraindicated here.

There used to be an Edge rep feller who posted here - perhaps he can clarify for us, as this is the first I've heard of this constraint - and I've searched for any corroboration and have come up empty ...

And - if this turns out to indeed be true, We'll just add it to Shotgunz' list of CTS inadequacies. Behold! A 'Tow' tune that is tow tune in name only. The implications and consequences of not clearly telling customers of this limitaton are very, very disturbing.


MGD

 

Are you sure you heard him correctly?

 

I think someone is confused. This warning is in the manual:

WARNING: Performance and Extreme levels are not intended
for, and should not be used for towing. Do not exceed your vehicle’s
max GVWR as outlined in the vehicle’s owner’s manual. Doing so may
result in loss of vehicle control and cause bodily injury.

This information regarding settings:

Trans Only[/B][/B]- The Trans Only level only makes changes to the transmission.
It will provide firmer transmission shifts which help increase transmission life.
Economy - The economy level is the lowest power setting. It has been
specifically tuned for optimum fuel economy, we recommend using this level for daily driving.
Towing - The towing level is designed for towing, Tuning strategies are optimized to provide power where it is needed most in order to move a load.
Performance - The Performance level is a high power level. The fuel
injection and timing strategies are tuned semi aggressively to extract substantial power gains from the vehicle without sacrificing drivability or durability.
Extreme - This is the highest setting for the Evolution. The fuel injection
and timing strategies are aggressively tuned to extract high performance from
your vehicle without sacrificing drivability or durability.

The tech may have told you that if you are having an issue with the dreaded "death rattle" associated with fuel that is not actually 87 octane and recommended a higher octane fuel to stop that problem. This could also be caused by bad fuel, hot dry weather, or even a carbon build up in you engine.

 

Just a note here: Expy's explanation may confuse some that are new to this. The page he is quoting is from an Edge manual that is designed for both the Gas and Diesel versions of the CS/CTS platforms. At present, the Gas version has only "Trans Only", "Towing", and "Performance" tunes.

Otherwise, I agree with everything he said including why the Edge Tech may have said to use a higher octane fuel.

As everyone here has said though, the Tow tune is for towing - up to the truck's rated limit. Don't tow anything over 2000-2500# with the Performance tune.

- Jack

 

This is the e-mail I got from tech support at edge:

David, Anything over 3000 lbs is considered heavy when dealing with tuning.* If you are towing over this weight we suggest that you go down to power level one.* This will prevent any detonation in the combustion chamber.* You can tow in the towing power level with heavier loads but you will want to use middle or high grade gasoline when doing so. Let me know if you have any additional questions. Edge Products*Technical Support 1080 S. Depot Drive Ogden, UT 84404 Toll Free: 888-360-3343 Local: 801-476-3343 Tech Fax: 801-337-2198 Email: tech@edgeproducts.com www.edgeproducts.com

 

David, thet's the first I've EVER heard that. AND, I'm in constant communication with Bill Cohron at PHP who helped them (maybe did most of the programming) for their tunes for the F-series trucks. I have to say that Tech is mistaken. It may be true for the models used in GM or Chrysler products, but I don't think that advice applies to Fords.

- Jack

 

Ok. We believe you. Just wondering why that's not in the manual. And for the really big question:

Why call it a tow tune if you can't tow? Just call it performance level II or something.

 

That's what I was wondering. I'm not saying the guy is right. That's why I wanted some other opinions and see what others have used and what worked good for them. Thanks for the input.