5 Star Tuning

couple of previous discussions at
http://forums.motorhomemagazine.com/index.cfm/fuseaction/search/parms/sw%7Bfive%20star%20tuning%7D|km%7Bexact%7D|kl%7Bm%7D|fm%7B%7D|pd%7B365%7D|ma%7B%7D/sr/1.cfm

I have the 5 Star but its on a 08 Bounder with the 3 valve V-10, yes I did get some more HP but what it did best was fix the shift problem with the 5 speed transmission.

Have the 5 Star tune on my 99 Newmar with 2 valve V10. HP and torque increases were not really noticeable, but the transmission programming is WAY better. Was worth the money IMHO.

transmission shifting difference ia a big plus, if there are HP and torque increases, its not noticeable. You would actually have to do a dyno comparison to get any true facts.

I have the 5 Star in my rather light weight unit. I can feel some increase in HP and torque, but the really big plus is the transmission shifting. I would buy it again.

I have 5 star in my 2015 Jayco Precept 3 valve 5 speed. There is slight power increase but you would have to pull on a dyno to find it. Throttle response is much improved at low RPM. The HUGE improvement is transmission software. That alone is worth every penny the tuner cost. I can get up to speed much better than before on an entrance ramp because of the tranny.

Installed mine on a 2014 V-10 two weeks ago. Tranny shift points are better. That loud downshift from 2,000 to 4200 rpm is much less frequent. My Scan Gauge II shows an increased HP at most speeds compared to readings before the install. It also shows a LOWER mpg than previously. Haven't driven enough to know if the mpg has actually been reduced.

BTW, mpg is about 7 on this 22k CGVW. My old 2000 V-10, CGVW 26k, with a BANKS averaged 7.75 over the 130k miles I owned it. The "new improved V-10" has not impressed me. My assessment is that the engine, transmission, rear end combo is poorly matched on the 2014 18,000 F53. Second BTW: had to tear the 2000 V-10 down due to a spit plug at 127k. It had zero measureable wear. Used Amsoil and then Mobile 1, and a dual filter system with oil tests at 7500 miles. Oil changes usually suggested at 35-40k miles.

Both had/have plenty of power. Most of my trips cross the continental divide in the Rockies 8 to 10 times,

fortytwo wrote:
Installed mine on a 2014 V-10 two weeks ago. Tranny shift points are better. That loud downshift from 2,000 to 4200 rpm is much less frequent. My Scan Gauge II shows an increased HP at most speeds compared to readings before the install. It also shows a LOWER mpg than previously. Haven't driven enough to know if the mpg has actually been reduced.

BTW, mpg is about 7 on this 22k CGVW. My old 2000 V-10, CGVW 26k, with a BANKS averaged 7.75 over the 130k miles I owned it. The "new improved V-10" has not impressed me. My assessment is that the engine, transmission, rear end combo is poorly matched on the 2014 18,000 F53. Second BTW: had to tear the 2000 V-10 down due to a spit plug at 127k. It had zero measureable wear. Used Amsoil and then Mobile 1, and a dual filter system with oil tests at 7500 miles. Oil changes usually suggested at 35-40k miles.

Both had/have plenty of power. Most of my trips cross the continental divide in the Rockies 8 to 10 times,

how is that scan gauge installed, does it plug into the same port the 5 star, thanks