johnkoestler Posted May 20, 2007 Report Share Posted May 20, 2007 Hey Guys I've been debating on custom tunes vs. handheld tuners. I keep getting people's recommendations to get the the custom tune on my PCM but how is the fuel mileage with a custom tune vs. a handheld tune with a fuel saver programmer vs. stock? This will help me decide on tunes since the price of fuel is rocketing. Quote Link to comment Share on other sites More sharing options...
kelleyperformance Posted May 20, 2007 Report Share Posted May 20, 2007 either one, you will see minor improvements. go with some things to get average engine load lowered. say like a cold air intake and a cat-back exhuast. with that combo you will not only see a nice little hp increase, but you will also see a noticable difference in fuel economy Quote Link to comment Share on other sites More sharing options...
johnkoestler Posted May 20, 2007 Author Report Share Posted May 20, 2007 HEy I already have a Volant Ram Air Intake, OBX long tube headers and true dual exhaust. Will I see a noticable gain in mileage with this? Also what would a 160F thermo do for me? all of these things combined is a 160F thermo going to make a differance? I'm in Iraq right now and was just wondering. Quote Link to comment Share on other sites More sharing options...
Silver LT Posted May 20, 2007 Report Share Posted May 20, 2007 Last summer, I replaced my Superchips tune, for a custom tune, and picked up 1 mpg, on the freeway. At that time, I was making at 200 mile round trip, every Friday, and consistantly got 19.5 mpg. After the change, mileage increased to 20.5 mpg (not bad for a 6 liter) Quote Link to comment Share on other sites More sharing options...
jester08 Posted June 12, 2007 Report Share Posted June 12, 2007 I used to have a handheld tune with a GM fuel saver programmer on my GM... But it really does a little improvement on the mileage... Had modified my exhaust system and swap to custom tune... Not only that it had increased my car's mileage but it added an extra HP in it... Just make sure that everything that you are gonna do to do to your can be handle by its parts, as my mechanic advised... Also, don't forget to do your home work and ask for second opinion if your not sure in what you are doing... "DON'T ASSUME, YOU ASSURE"... Quote Link to comment Share on other sites More sharing options...
Prestoar Posted June 12, 2007 Report Share Posted June 12, 2007 I gained about 2mpg and nice performance gains with a mail order tune... I have a buddy working with a handheld and he can't get any gains from it yet...he doesnt know how to use it properly Quote Link to comment Share on other sites More sharing options...
KJT13 Posted June 12, 2007 Report Share Posted June 12, 2007 with just the Volant I gained about 2mpg. when I get alittle more cash together, I'm going to add a tune and a better exhaust as well as a shift kit and hopefully a TC. get home safe man!!! Quote Link to comment Share on other sites More sharing options...
xlr82sxs Posted June 12, 2007 Report Share Posted June 12, 2007 go with a custom tune.. if you are worried about fuel mileage why did you buy a 6.0l truck? Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted June 13, 2007 Report Share Posted June 13, 2007 (edited) like everyone says, go with a custom mail order tune, you won't be sorry....... Come home soon and god bless you and the troops! Edited June 13, 2007 by Fireman31 (see edit history) Quote Link to comment Share on other sites More sharing options...
detjoe Posted June 13, 2007 Report Share Posted June 13, 2007 I got 12.4 on my 188 mile trip to the tuner I reset and did 14.6 on the way back with some time spent in triple digit speeds. I am going to reset it again and see what it is during my normal driving. Quote Link to comment Share on other sites More sharing options...
haulin79 Posted June 13, 2007 Report Share Posted June 13, 2007 (edited) This truck here has optional 10.0L to 16.0L engines: www.kenworth.com/2100_vir_t2000.asp The main thing these guys care about is fuel economy: www.kenworth.com/brochures/FuelEfficiency.pdf go with a custom tune.. if you are worried about fuel mileage why did you buy a 6.0l truck? Edited June 13, 2007 by haulin79 (see edit history) Quote Link to comment Share on other sites More sharing options...
Chris Dubya Posted June 26, 2007 Report Share Posted June 26, 2007 Hey Guys I've been debating on custom tunes vs. handheld tuners. I keep getting people's recommendations to get the the custom tune on my PCM but how is the fuel mileage with a custom tune vs. a handheld tune with a fuel saver programmer vs. stock? This will help me decide on tunes since the price of fuel is rocketing. Got the PCMforless tune around Christmas. My mileage went from 16.4 to 16.7. I do 90% highway driving (70-90 mph) however Quote Link to comment Share on other sites More sharing options...
saleen1 Posted June 28, 2007 Report Share Posted June 28, 2007 i have a hypertech for a 06 if you are interested. Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted June 28, 2007 Report Share Posted June 28, 2007 i have a hypertech for a 06 if you are interested. so do I ............... Quote Link to comment Share on other sites More sharing options...
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