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Old 10-25-2010, 04:30 PM   #1
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Banks Powerpack System, any miles per hour increase?

For those of you who have installed a Banks Powerpack System with OttoMind.

How much speed do you increase when climbing in the mountains?

The salesman at the Denver Camping World said all you could expect is a 5 mph increase, all conditions being equal, after the install. For example: If you were getting 45 mph before the Banks, wide open throttle shifted out of overdrive, say in 3rd gear, you would get 50mph after Banks install.

How accurate is his assessment?
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Old 10-25-2010, 07:04 PM   #2
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I had the kit installed in Aug. I haven't tested as you described, however I do notice a big difference when pulling hills with my toad. The range from 45mph to 65mph is lots better. I'm still checking some things like mileage, etc. I had a little computer problem and had to wait to install the ottominder program, so , a little behind on it all.
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Old 10-31-2010, 09:36 PM   #3
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I had the Denver (Westminister) CW install the full Banks system on my RV about 5 years ago. I picked about 8 mph (from 29 to 37) going over Eisenhour. It seems to have a more noticable help on the smaller hills, and it runs cooler. Didn't notice any improvement in mileage though. The on-sale installed price back then was about $2,300 and I don't know if I'd do it again. Guess it depends on how much of a hurry you are, and if you need it to run cooler, especially on the long climbs. JMHO.
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Old 11-28-2010, 03:52 PM   #4
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I can answer my own question now. I installed a Banks PowerPack with Ottomind and Transcommand module. I climbed the same hills with the same load and same wind. The steepest grade was the Georgetown,CO. Before the Banks stuff the best speed I could make was 45mpg. After the Banks it was 57 mph in drive with the overdrive switched off. If I dropped from drive to the next lowest gear, which is 2nd, I could accelerate more, but 57 was fast enough for me without a lot of high rpms. Later I tested the miles per gallon. On level terrain, at 7,000' elevation, no winds, the best average I could get was 10.1 mpg, with the Banks system I got 10.7. average speed 58 mph.

The Trascommand adjusts the shifting. I notice that the time lapse from one gear to another is quicker and smoother. Also there is less hunting for the correct gear (constant changing of gears as your speed changes as you climb various grades). I can climb longer in a high gear before it shifts into a lower gear.

I can stay at the posted speed limits on the two lane mountain roads now. Before the Banks I would cause a slow down because I couldn't maintain posted speeds. It is much more relaxing to drive now knowing that I'm going the speed limit on those roads where it's impossible for someone else to pass because of hills and curves. On interstate roads I keep it at 60 mph as it's easy for other to pass.

I have no regrets having installed the Banks.
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Old 11-28-2010, 05:06 PM   #5
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What size and model of RV do you have? I have a 36 ft. Dolphin (20000 lbs. loaded), and don't get that high of mileage.
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Old 11-28-2010, 05:38 PM   #6
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I have a 2004 Jayco Escalade, 28.5'. 14,000 lbs. empty. My test was done with all tanks empty and no cargo. 50 gallons of gas on board.
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Old 11-28-2010, 07:22 PM   #7
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We are on our 2nd MH with the Banks system on it. The first was a 2004 Ford F53 30ft. We pull and enclosed trailer which weighs in at 9300 lbs. The power increase was fantastic, gas mileage only improved about .5 mpg. Our current unit is a 2006 Ford F53 34ft. This is the 3 valve engine, while it does pull better than the stock it did not change the mpg that we can see. That said I am still glad to have it. It really helps the power range and helps run cooler and less shifting.
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Old 11-28-2010, 07:30 PM   #8
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What engine do you have?

I had talked to a dealer at a show who told me the GM 8.1 was pretty much at maximum output with the way it was designed and adding a Banks system wouldn't be worth the money as far as power goes.
However I've had both exhaust headers replaced and will probably go with the Banks headers or Thorleys.

Has anybody done the 8.1 engine and if so, how did it affect your power?
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Old 11-28-2010, 07:49 PM   #9
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I have the Ford V-10 engine.

I noticed a big difference in power. Only 0.6 increase in gas milage, but I was more interested in the power increase.

It's my understanding that the increase in air flow and exhaust flow will help any engine.
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