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GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 348
Location: Southeast Michigan
We would like to unquire from current tune customers what their drive cycle mix is. We are looking for the % city driving verses the % highway driving and average speed in the city and highway portions. Once we have a good idea what the mix is, we would like to work out some testing with a few customers to validate a couple options we are working on to further improve the fuel economy. Your feedback will help us to determine who would benefit most from the improvements we are working on.

Thanks in advance for your assistance.

GDE
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Cetane Man

Joined: 23/02/2010 09:20:48
Messages: 5
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My new mopar convertor is on its way and was going to send my ecm in for the hot tune while I have the Jeep apart. Would it be wise to wait for the updates you are contemplating? BTW the best price I could find for the convertor part #68037142aa was 285 at moparonlineparts.com

2005 CRD Sport, GDE Hot tune, magnaflow catback, euro TC
GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 348
Location: Southeast Michigan
There is no reason to wait for the updates, the tunes will remain the same. The other options we are working on pertain to other components on the vehicle. Chrysler recently raised the price of the new torque converter due to the high demand for the part...go figure.
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retired


How detailed do you need? I've got a Garmin Edge 305 I use for bike training that records route, elevation, grade, speed, etc. and can plot the data versus time and/or distance. Or are you just looking for more basic info like: most trips are 14 mile 1 way with 80% county hwy at 55 and 20% stop and go in city traffic?
GreenDieselEngineering
[Avatar]

Joined: 10/07/2009 07:25:47
Messages: 348
Location: Southeast Michigan
Although the Garmin data is cool, we do not need that much detail. We are looking for a few customers that have repetitive drive cycles that tend to be more city based. The city fuel economy is still the weak point on this application and we are looking for ways to improve this. Thanks!
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TDIwyse

Joined: 01/10/2009 06:58:20
Messages: 54
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If you could find a way to improve the cold weather efficiency (<15F ambient temp) where I see a big drop in mpg's I'd be excited about that. Or if you could get the torque converter to lock for 2nd as well as 3rd when in OD Off mode that would be cool.

2006 Liberty Limited CRD
2004 Ram Quad Cab 4x4 Cummins
2001 VW Jetta TDI
1990 YJ with 2006 Cummins B3.3T
SVO Ryan
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Joined: 20/07/2009 01:07:28
Messages: 10
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I do about 90% stop/go driving in wonderful DC traffic. I'd guess average speed is less than MPH. This is ~35miles round trip each day Mon-Fri.

Ryan
2005 Liberty CRD
GDE Tune//TransGo Shift Kit//PML Deep Pan//MBRP Exhaust//LoTek Dual Gauge Pod//ProSport Tranny Temp and Boost Gauges
1986 Mustang SVO
WXman
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Joined: 29/01/2010 14:53:49
Messages: 28
Location: Kentucky
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My drive cycle is very consistent for the most part. I have a 15 mile each way drive to work M-F. I would say it's 60% city/40% highway. Speed limit is 35-55 the entire way. On the weekends I sometimes venture into a larger city nearby. I've been averaging about 1,000 miles per month lately.

I'm doing my best to keep driving style the same with each tank, I'm logging all my mileage in a spreadsheet with details about vehicle usage and weather during each tank, and currently I'm trying different brands of diesel fuel to see if I can get past the 20 MPG mark.

'05 Liberty CRD Limited
Factory Off-Road Package
Daystar spacer lift/Conduit washers
Skyjacker H7088s in the rear
Renegade wheels
255/70-16 General Grabber AT2s
GDE HOT Tune
EHM
No clutch fan
"Euro" TC
bobh00

Joined: 27/07/2010 23:08:15
Messages: 1
Offline
Hi I have a 2005 CRD, did the Eco tune in July of 2010 (w/2nd try) and the TC in August. The car has over 65k. Plan on the TCM mod when we get back up north this summer We spend over 6 months down on the Baja. We do not off road!! 2k form home to here and another 2k here! I bought the new Fuel/Water seperator head, but haven't installed it as yet as we do not experiance any of the symptoms!!

We are so HAPPY with it we haven't even checked the mileage since we crossed the border in Oct.!!!!


My biggest concern is the fact that these vehicles are a discontinued item! Do you have a plan for when parts start getting hard to find?? I plan on keeping it for as long as possible!!!! Can you answer this question at my email site bobh00@live.com

 
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