economy tune?

[azpyroguy]

BTW- With the supercharger is your mileage up, down or the same Prof?
(Assuming of course you could drive it long enough with the throttle off of the floor).

Ron

Mine stayed about the same... but then I have the diesease that keeps me from removing my foot from the floor...

I average about 9-9.5 driving it normally... and about 7-7.5 when I am mashing the throttle.

However if I make a trip across town on the highway (50-60 miles), then I average 11-12mpg....

So I gots no complaints...

But everyone is right....

Viper V10, 500+hp, 500+ torque, 5000+ lb truck = Crappy Mileage!!

I bought mine, and have not looked back... I figure if you can afford a Viper Truck.. you can afford the gas to drive it..... no offense meant by that....

 

[tidnab]

1: MDS is a great idea for these trucks... my MBs600 had a similar setup.... It would shutdown 6 cylinders and run on the other 6... the mileage improved dramatically... I could hit a button to bypass it...
2: I found that trading my RC for a QC improved my mileage DRAMATICALLY... I used to average 7.2 now I average 12.4.... mostly due to me not keeping it in second gear with my foot planted on the floor ....

 

[lbstone]

You mean OPEN LOOP doesn't make adjustments based on sensor input....right?

Ron

No, I worded it correctly. Closed loop (as in WOT) makes no adjustments based upon sensor inputs but runs a preset programed curve. Open loop takes place during regular driving and makes adjustments based upon sensor inputs.

 

[rottenronnie]

No, I worded it correctly. Closed loop (as in WOT) makes no adjustments based upon sensor inputs but runs a preset programed curve. Open loop takes place during regular driving and makes adjustments based upon sensor inputs.

Not trying to be a difficult here but...

http://www.netrino.com/Publications/Glossary/PID.php
Paragraph 3
and
http://en.wikipedia.org/wiki/Open-loop_controller
and
http://www.motorera.com/dictionary/car-dico.htm

Ron

 

[VA VIPERAM]

Open-Loop is the "untrimmed" mode. The PCM just sends commands and expects it to happen.

Closed-Loop is controlled based on sensor feedback (thus "closing " the feedback loop). The PCM sends commands, reads the sensors, and corrects its next command based on the received information.