. I run the GDE turbo tune, I'm sure I would get great fuel economy, but I have never even checked what it is, and I take it off road a lot Sent from my iPhone using Tapatalk
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| TUNES, GDE, Rocketchip, InMotion http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=78993 |
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| Author: | mustang_gt_350 [ Sat May 03, 2014 9:54 am ] |
| Post subject: | TUNES, GDE, Rocketchip, InMotion |
I was just wondering what MPG increases you have seen and what tune you have? are you happy about your purchase? Also have any of you had engine failures while running this tune? If so what failed, or what happened? |
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| Author: | flman [ Sat May 03, 2014 11:59 am ] |
| Post subject: | Re: TUNES, GDE, Rocketchip, InMotion |
With GDE in 3 vehicles, no problems, just pure satisfaction. |
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| Author: | Hexus [ Sat May 03, 2014 12:19 pm ] |
| Post subject: | Re: TUNES, GDE, Rocketchip, InMotion |
Running GDE Eco tune, noticed a 30% increase overall in fuel efficiency, could easily push that higher with the Transmission tune and economical driving, but I didn't buy a Turbo Diesel to totally baby it, enough is enough. |
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| Author: | Pararig [ Sat May 03, 2014 6:15 pm ] |
| Post subject: | Re: TUNES, GDE, Rocketchip, InMotion |
| . I run the GDE turbo tune, I'm sure I would get great fuel economy, but I have never even checked what it is, and I take it off road a lot Sent from my iPhone using Tapatalk |
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| Author: | thermorex [ Sat May 03, 2014 11:27 pm ] |
| Post subject: | Re: TUNES, GDE, Rocketchip, InMotion |
Gde tunes are the best thing money can buy for crd. Cleaner intake, better torque, power and fuel economy. My best is a little over 30 mpg driving constantly at 70-72. Regarding failures, knock on wood, I didn't, but who has failures usually didn't do timely oil changes and/or drove the diesel like a race car, without having egr disabled. This is my opinion at least, based on what I have seen and read. |
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| Author: | DOC4444 [ Sun May 04, 2014 12:15 pm ] |
| Post subject: | Re: TUNES, GDE, Rocketchip, InMotion |
If you check my old posts from 2007-8 and reference "dyno testing", you will find back to back comparisons of GDE and IM tunes. However, GDE is the only way to eliminate EGR without ALSO eliminating turbo overspeed protection, which is critically important. DOC |
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| Author: | mustang_gt_350 [ Sun May 04, 2014 1:08 pm ] |
| Post subject: | Re: TUNES, GDE, Rocketchip, InMotion |
DOC4444 wrote: If you check my old posts from 2007-8 and reference "dyno testing", you will find back to back comparisons of GDE and IM tunes. However, GDE is the only way to eliminate EGR without ALSO eliminating turbo overspeed protection, which is critically important. DOC What overspeed protection? Also doesn't anyone run gauges? I see pretty much NO ONE mention gauges in their sig's that are running tunes. EDIT: No luck finding your dyno runs |
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| Author: | DOC4444 [ Sun May 04, 2014 1:51 pm ] |
| Post subject: | Re: TUNES, GDE, Rocketchip, InMotion |
Here are the links: viewtopic.php?f=5&t=31234 viewtopic.php?f=5&t=44912 GDE maintains OEM use of EGR to bleed off excessive boost and keep turbo from being damaged from overspeeding. You have to use SEGR with IM. That eliminates the overspeed protection. DOC |
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| Author: | CATCRD [ Sun May 04, 2014 10:00 pm ] |
| Post subject: | Re: TUNES, GDE, Rocketchip, InMotion |
DOC4444 wrote: GDE maintains OEM use of EGR to bleed off excessive boost and keep turbo from being damaged from overspeeding. You have to use SEGR with IM. That eliminates the overspeed protection. DOC That would be surge protection, not overspeed protection. Two different things. |
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| Author: | DOC4444 [ Mon May 05, 2014 7:33 am ] |
| Post subject: | Re: TUNES, GDE, Rocketchip, InMotion |
I believe Keith has stated it as I did. Will check with him on that. DOC |
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| Author: | DOC4444 [ Mon May 05, 2014 9:40 am ] |
| Post subject: | Re: TUNES, GDE, Rocketchip, InMotion |
Thanks for bringing this to my attention. I read it on this board a couple years ago and thought it came from Keith. However, he just has clarified that SEGR does eliminate an important protection for our turbos, but it is NOT overspeeding, as CAT has noted. Here is his reply: "The condition requiring the ‘blow off’ of residual intake pressure is for surge protection (flow reversal on compressor wheel blade tips). Overspeed protection is based on vane position and maximum boost setpoint. There are corrections for boost setpoint based on altitude and air temp. Altitude is the primary driver for reaching peak turbo speeds. The engine is derated at high altitude to prevent overspeeding." DOC |
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| Author: | mass-hole [ Wed May 07, 2014 4:54 pm ] |
| Post subject: | Re: TUNES, GDE, Rocketchip, InMotion |
I just recently got GDE's hot tune. I am averaging 28-29mpg on my weekly commute which is a little bit of city(4 miles) and about 10miles of highway. My daily commute was around 24mpg before the tune, with my EGR blocked. On a long highway pull I have seen 32.6mpg a few times and it was still climbing. Dont take this as absolute numbers though, only as an expected gain in mpg. I know for a fact that my Speedo reads about 5% high and my odometer reads about 10% low, so chance are my MPG's as displayed by the jeep are not perfectly accurate. GDE has spent a lot of time with these jeeps and are active on this forum. I think you can have confidence in their tunes, even more so than stock since they eliminate the EGR and make for an overall smoother running engine. |
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