Class C & 5 star tune?

[Campingman]

Anyone install the 5 Star Tune on their new Class C V-10? If so what kind of improvement are you experiencing? Is it worth the cost for the difference?

[csdavis62]

Quote:

Originally Posted by Campingman Anyone install the 5 Star Tune on their new Class C V-10? If so what kind of improvement are you experiencing? Is it worth the cost for the difference?

Actually your timing is quite good as we just returned from a 1700 mile trip from east TN to southern FL and back up the east coast with the 5 Star 87 Octane RV tune. We have a 2011 E450 32' Coachmen and pull a Toyota 4Runner 4 down (4500 lbs).

As far as improvement in performance I am very pleased with the results. Driving through southern GA and FL (I75 S read flat) when we crossed over an overpass with the cruise on it never even down shifted just powered up and over only occasionally unlocking the torque converter to pull the grade. This was with full fresh water tanks and a full gas tank in the toad. Before installing the 5 Star tune it downshifted much more frequently vs simply digging in and pulling.

On the way back we went up I95 to I26W through Ashville NC. I am not totally sure where it is but there is a significant climb about 70 miles out of Ashville which is about 5 or 6 miles of I would guess a 5% to 7% grade. We easily passed a older F350 Diesel pulling a 5th wheel of about our length basically maintaining over 50 mph at about 4000 RPM. I have not weighed my combined coach and 4Runner (V8) but I have to be close to the 22K combined gross vehicle weight.

Fuel economy was in the 7's and I ran between 60 and 70 mph depending on traffic and terrain etc.

Overall I am very satisfied with the 5 Star tune and have not even tried the 89 octane tune yet and may not unless gas prices go back down into the mid $2 range.....

Luck

[Campingman]

Thank you. This is exactly the info i was looking for. We just put 300 miles of combined mountain and freeway driving on it to get a base on what it will do. For sure down on power from the 3 valve V-10 my 2007 Class A had and this is 3500#'s lighter. I'm going to fuel it up this morning, that will give me my Mpg. We were not towing the jeep this trip, 3480#'s so don't know how it will handle the extra weight but with what you say I don't think it will be a problem. I will most likely order the 5 Star Tune.

Thanks
Mark

[Campingman]

Ok fueled it up and got 7.75 mpg. I was not light on the gas so with a little more finis I probably could do better. But what I really want is more performance so it's 5 Star ordering time.

[Brewer & Nancy]

Okay, what exactly is a 5 star tune/87 octane RV tune??

[preston56]

the theory of an internal combustion engine requires 3 things to operate,they are air,fuel,and spark as long as you have these three things usually a vehicle will operate,a five star tune is a device attached to the engine that changes the way these three things are read by the ecu (electric control unit)also sometimes a ecm or moldule.when a vehicle leaves the factory,usually they are considered to be in a mild state of tune,which is a level of power that will be necessary to make the vehicle function well,a tuner device changes how the computer reads and reacts to what ever the driver is doing,some of these devices are garbage and a waste of money,and some actually do what they say they will,but at what cost,i wouldnt consider putting one on a new vehicle,it would most likely void the warranty,if you have one installed,make sure you understand what the device is and what its doing to the engine.if you need more power,consider a banks unit,which is an air induction system that forces fuel into the carb or into the intake manifold quicker thus the engine gets the fuel faster,burns more quickly= more response and power,they are expensive,but proven ,the chips and other devices are much cheaper and may do well for you,but again at what cost.

[csdavis62]

There is also transmission shift points and pressure. Throttle to in as well as fuel mapping etc that can be adjusted and improved. Not sure what warranty issues you could run into 5 star tunes are installed on hundreds if not thousands of vehicles and I have not seen one comment about warranty or damage issues.

My 2 cents

[Campingman]

Quote:

Originally Posted by csdavis62 There is also transmission shift points and pressure. Throttle to in as well as fuel mapping etc that can be adjusted and improved. Not sure what warranty issues you could run into 5 star tunes are installed on hundreds if not thousands of vehicles and I have not seen one comment about warranty or damage issues. My 2 cents

I agree. I haven't heard anything adverse about 5 star.

[Campingman]

5 star tune arrived. I will load it up this coming week when i can put a few miles on it.