Good afternoon. Question, I'm thinking about purchasing a Range Disabler for my 2017 ZO6. I hears that the constant shutting down of cylinders is not good for your engine. What are your thoughts?

 

get one asap!!!!

 

why is constant shutting down of cylinders not good for engine?

 

I am interested in knowing the answer to this too. Also, don't the cyclinders shutdown only when in the Eco mode? Thanks.

 

On a vehicle with an auto transmission, unless you are in "Manual" mode and paddle shifting, it would cut the engine into V4 mode when it deems that there are fuel savings. I didn't want to lose the "street mannars" by going with a larger cam and having to change the TC and all that. Most of the engine guys around me seem to not really care too much about the AFM going in and out but suggested that I do something about it via a tune. I did try the AFM but once I figured out that it works by fooling the ECM into thinking it isn't in emissions readiness state and I have managed to kick it going in and out of the car, I decided to toss it for something better. I went with a Diablew tune to remove the AFM and increase the throttle sensitivity so I wouldn't need yet another fooler at the TB to make the tip in better. Now, my ECM will, like when it was stock, keep checking for emissions systems down. This is why they tell you to pull your fooler a week before emissions testing. So that the car has time to do it's readiness checks. That is all fine if your car is not going to have an issue. OTOH, if it does have a problem that is now uncovered, you have less time to fix it. I managed to sell it for half of what I paid for it, IIRC and am glad to get rid of it.

No more kicking it out of the car (or was that a sign that I should get rid of it?), slightly better tip in at the throttle with AFM suspended in the tune. Supposedly the Diablew tune did enhance a couple of things but without a dyno and testing tools, I don't think my SOTP dyno is that accurate.

 

This one popped up...

https://www.corvetteforum.com/forums...e-afm-dfm.html

 

might be a noob question here, but I thought I understood that if you were in the track mode setting, it would never drop to 4 cylinders, regardless if you are using the paddle shifters or not. Can anyone confirm?

 

From what I've been able to determine, the issue isn't with the engine. The problem is with the impact of the V4/V8 transition on the torque tube. The failure of the valve springs will occur regardless of the functionality of the Eco mode. I too, tried the disabler and removed it for the reasons described aklim. And, like him, I went with the Diablo tune and disabled Eco mode and enhanced my throttle response.

 

I bought a knockoff for half of Range's price and it works great. After I do use it I always unplug it and put it behind the screen. I have become proficient at putting it in the OBD port while seated and of course, removing it is much easier. I don't see any downside to having one.

 

Does this come into play with a manual transmission?

 

How does it do emissions readiness tests while it is on? IOW, how would you know something is wrong until emissions test time? Those are tests of systems that require it to run under certain conditions for certain periods of time.

Not sure why someone would want to plug it in and out all the time. Seems like "busy work" to me.

 

Unless you want to put it in ECO mode, probably not.

 

Why don’t you just leave it plugged in? I have one from the Range manufacturer and leave it in full time. Has never caused any problems. Wouldn’t drive my C7 without it.

Edited info….Forgot to mention we don’t have emissions testing here in KY. I can see where that might be something requiring it’s removal for a bit prior to testing.

 

Emissions testing or not, I want to know when my car is not 100% functional. Just in case that non functional emission hardware has some effects on the rest of the system

 

Thank you for answering my question about manual transmissions, aklim!

 

Have the Ranger from my 2016 Z06 A8. Great item. Just traded the car in for a 2024 Z06. Loved my ‘16 with its tons of torque but I’ve got a 2019 Shelby GT350 which has a smaller version of the C8 Z06 engine and its sound is fabulous. Wanted the Z06 as an even more exciting version.

If you’re interested in my Ranger unit, let me know.

 

Installed my Ranger about 1.5 years ago and I am happy I did. Yes I lost some MPG (about 1) as a result but, I gained a car that is much more responsive to throttle inputs as I drive around in our mountainous area. .

 

How would it make the car more responsive to throttle inputs? All it does is keep it out of V4 mode.

 

2nd mod on our 2014, never looked back.

first was removing the braces... I knew someone would ask.

 

Short answer: yes.