Should I make the switch? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 11 (permalink) Old 10-29-2007, 06:46 PM Thread Starter
 
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Should I make the switch?

Hey Y'all,

I have been lurking on this forum for a few weeks now but I just now decided to join and this is my first post.
I currently have the Edge Evolution installed in my '07 LBZ. I am thinking of making the switch to te Hypertech Max Energy. I am looking for maximum fuel economy and a little extra umph. I use my truck for work and for towing my horse trailer and 5'er. I am not into sled pulling or drag racing and I don't intend to do any tranny upgrades.
I like the EVO pretty good and the built in gauges are nice, but I am just not getting any mpg gains and egt's are a little hotter than I like. Does anyone here have any experience with either or both of these tuners?
With the EVO I get the best fuel economy, both loaded and empty, on level 1 (economy tune). The tow tune doesn't feel any stronger than the economy tune.
For those of you with an opinion, would it be a good idea or a bad idea to change?

Thanks in advance.

Phillip
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post #2 of 11 (permalink) Old 11-03-2007, 11:29 PM
 
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ITs all in how you drive it dude. Any of the programmers will cost you in MPG if your heavy on the pedal.
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post #3 of 11 (permalink) Old 11-04-2007, 01:56 AM
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exactly. I run a predator and haven't seen any increase in mpg on the economy tune(65), which is the second lowest above the tow(45). On the 85 hp tune sometimes I get a little better but egt's are pretty high 1487 when I really get on it. So I keep it on 65 until I get the $ for exaust. If my truck idles a lot my mpg goes way down. I tjhink the tunes just flow more fuel all through the rpm band so if your moving it's good and if you're sitting not so. How high are you're egt's?

06 Sierra 2500 4wd lb. Predator, S&B, MBRP duals-no cat, Quadzilla gauges, Allison Jr., Riderite air bags, PPE Tie rod sleeves, egr plate / finger stick. 02 Chevy 3500 8.1L 4wd dump 9' Fisher mm2, sander. 03 Kubota L4630. 80'S or 90's Komatsu pc50. 89 d250 5.9 which may someday go into something.:
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post #4 of 11 (permalink) Old 11-06-2007, 01:43 AM Thread Starter
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I have seen above 1300 while towing 12-15k on a level road.
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post #5 of 11 (permalink) Old 11-17-2007, 03:19 AM Thread Starter
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I have gone back to the Predator!
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post #6 of 11 (permalink) Old 11-17-2007, 11:12 PM
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You say you went back. Did you switch to Hypertech? I ran my truck on stock setting yesterday and hit 1300! I guess I can't blame the Predator for being a little hot. I'm guessing 1350 or even 1400 would probably be o.k. in these trucks if they're running that hot from the factory.

06 Sierra 2500 4wd lb. Predator, S&B, MBRP duals-no cat, Quadzilla gauges, Allison Jr., Riderite air bags, PPE Tie rod sleeves, egr plate / finger stick. 02 Chevy 3500 8.1L 4wd dump 9' Fisher mm2, sander. 03 Kubota L4630. 80'S or 90's Komatsu pc50. 89 d250 5.9 which may someday go into something.:
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post #7 of 11 (permalink) Old 11-19-2007, 07:07 PM Thread Starter
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Quote:
Originally Posted by firehillbilly
You say you went back. Did you switch to Hypertech? I ran my truck on stock setting yesterday and hit 1300! I guess I can't blame the Predator for being a little hot. I'm guessing 1350 or even 1400 would probably be o.k. in these trucks if they're running that hot from the factory.
I installed the Predator in my truck about a week after I bought it. I had one on my LLY and really liked it. I liked it on the LBZ to. I started reading a lot about the EVO and got "EVO Fever" so I sold the Predator and bought an EVO. I really like the EVO but like I said i the original post, I am just not seeing any mpg gains with it. I tried the Max Energy and lost mpg's on both stage 2 and stage 3. I tried running it with stock tuning and I am getting some of my best fuel economy ever. I have 265's on my truck and with the EVO you can't adjust for tire size and run stock tuning. You can with the Predator, so I just figured that would be my best bet. I am going to run the Predator on the 65 hp tune for a while towing while I have still got my EVO for the gauges to see how hot it gets compared to stock and to see if I can get mpg gains on that tune. I know I did with my LLY. If I don't, I'll just run stock tuning until I "need" extra HP.
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post #8 of 11 (permalink) Old 11-19-2007, 08:09 PM
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So would the predator allow me to adjust my tach & speedo for going from a stock 265 to a 285 or 295?
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post #9 of 11 (permalink) Old 11-19-2007, 09:24 PM Thread Starter
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I don't know about the tach, but YES on the speedo. It has been my experience with tuners, Predator included, that you have to experiment with the numbers to get it accurate. For example, my truck came stock with 245/75/16's. I am running 265/75/16's. I have ot put in either 243/75/16 or 234/78/16 to get it accurate (neither is perfect). I use a GPS unit to verify.
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post #10 of 11 (permalink) Old 11-22-2007, 03:02 AM Thread Starter
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Quote:
Originally Posted by cowdoc
I don't know about the tach, but YES on the speedo. It has been my experience with tuners, Predator included, that you have to experiment with the numbers to get it accurate. For example, my truck came stock with 245/75/16's. I am running 265/75/16's. I have ot put in either 243/75/16 or 234/78/16 to get it accurate (neither is perfect). I use a GPS unit to verify.
ON EDIT
I have it set on 241/75/16. It is close, but not perfect.
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