I would recommend reaching out to your sale department over phone, they can help cater to your desired exhaust note.

 

I purchased the Stage 3 Velocity tune, lower and upper pulleys and trans tune for my 2017 V6s. Velocity was good enough to include a Stage 1 tune for the interim. Health problems got in the way of tuning my car and Stage 1 is where it sits now. I love the way it performs. Would be nice if it pulled a bit stronger in the mid range.

My question is this: The lower pulley is a black simple pulley, and I've read that some of them were failure prone. How do I know if mine (it's new and uninstalled) is one of the 'bad batch' or if it's no problem?

Any suggestions as to where to find the proper top pulley puller?

 

You could reach out to us directly and provide us with your order information, picture of your pulley and we can look at the date it was supplied. We had a batch of pulleys with a materials issue from our supplier. We subsequently beefed up the design of the pulley to 'engineer around' any materials inconsistencies. We will be able to provide you with more accurate information than the general public can here.

 

 

Thanks for the video and the explanation, Stuart. It all makes sense to me and I find the interaction of the throttle and bypass valves to be really interesting.

One of the key points to remember is that the "gas pedal" is just an input to the computer (Drive by Wire, or DBW). I did some work years ago on an open source tuning project and I think the throttle input was labeled in the tuning tables as "Requested Torque." How the system delivers on that request varies, and the systems I worked on were turbo and NA, so there was no such bypass valve. I had an earlier tune that was a bit sensitive in low to mid RPM and partial throttle, but Chris sent me an updated tune to smooth that out. I'm not sure when he updated the tables, but I got the updated tune five years ago.

 

Believe they are generally labelled as 'Torque Driver Demand' or something like that.

 

I have a 2014 f type, 5.0 495 HP. Does anyone know which of these three 5.0 options I would select when downloading the factory map?

 

Does it scroll down? Yours is technically a V8S, assuming it’s a US car.

 

The one that says 364KW, which should scroll the text to show MED17.8.31, although any of them that say MED 17.8.31 should work.

 

Thanks!

 

Is there a method that the new Map file actually loaded to the vehicle?

 

I continue to experience issues since install <60 days ago, and just now the OBDC light is on. Are there current instructions to reverse the tune back to OEM? I'd like to isolate whether the light is due to a bad sensor, the tune, or something else.

 

The original file is already in the device. Perform the same process to select the modified, just this time select “Original”.

 

The OBDC error disappeared immediately upon returning to the OEM tune, and the performance has improved with the OEM tune. Makes no sense to me; could there be a issue with the Map file sent to me?

 

I do not see any emails about a concern like such, is there a reason you have not reached out to us directly?

 

I did.... Wasn't getting a response.

 

Our tuning support is waiting on your email.

tuning@velocityap.com

 

Can you share more details about this overboost? That really makes sense because if you look at the 0-60, 5-60, 30-50 and 50-70 times in Car & Driver comparing the P450 to the R, it's really close on the roll but only to a certain point and then falls off.

 

Nothing extra to note about it..

It will allow 10 seconds of overboost, and then timeout preventing overboost for 20 seconds. Once that 20 seconds has lapsed, it'll again allow overboost for a max period of 10 seconds and repeat.

 

Hello @Tuning@VelocityAP
Please can throttle cutoff when simultaneously braking be disabled?
I am located in EU, should I buy directly from VAP or elsewhere?
Thanks!