GDE Tune (Green Diesel Tune) - Page 70 - JeepForum.com

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post #1036 of 1267 Old 03-15-2014, 11:19 PM
hulikner
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I'm convinced that some CRD guys here have boost leaks and don't know it like I did. If anything like mine, on the turbo resonator, you won't get any clue that it's leaking. Just bad MPG. Everytime I see a CRD doing 18 around town 20-22 on highway, that's what I think. That's exactly where mine was before I had a diesel performance shop fix it. Dealership said nothing was wrong. With GDE, DPF delete, turbo res delete, I get 30mpg at 55mph. 21-23 around town.

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post #1037 of 1267 Old 03-16-2014, 06:48 AM
SSF556
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Quote:
Originally Posted by hulikner View Post
I'm convinced that some CRD guys here have boost leaks and don't know it like I did. If anything like mine, on the turbo resonator, you won't get any clue that it's leaking. Just bad MPG. Everytime I see a CRD doing 18 around town 20-22 on highway, that's what I think. That's exactly where mine was before I had a diesel performance shop fix it. Dealership said nothing was wrong. With GDE, DPF delete, turbo res delete, I get 30mpg at 55mph. 21-23 around town.
Valid point....but is your CRD lifted with 32 inch offroad tires? A lot of us have modified the vehicle and that is hurting mpg....

Need to clarify stock vs modified in the posts.....

Stock is nothing done at all to vehicle...same tires, no lift, no tune, exhaust..

Stock plus tune...GDE, DPF removal, but no lift and same OEM tire size.

Stock plus tune plus modified for offroad...32+ inch tires...2+ inch lift, underbody armor, heavier tires and wheels, winch, bumpers....

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post #1038 of 1267 Old 03-16-2014, 06:49 AM
james_2k
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30 mpg is very very high. i think even tragzig (sorry for probably spelling it wrong) was hoping for 30 when he had fitted the taller gears.

unless it was a very very long drive on flat road, 30 is.. well exceptional.
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post #1039 of 1267 Old 03-16-2014, 07:20 AM
SSF556
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Originally Posted by james_2k View Post
30 mpg is very very high. i think even tragzig (sorry for probably spelling it wrong) was hoping for 30 when he had fitted the taller gears.

unless it was a very very long drive on flat road, 30 is.. well exceptional.
Also..most of us do not spend long amounts of time at 55mph....I drive 72mph or just under 2500rpms max.....and I get 23-24 mpgs.....If I drove the same highway routes at 55mpgs...30mpg could be a result, never tried and probably never will. I would not feel comfortable driving 55mph in 70mph area where everyone else in doing 20mph more than I am....

But I do agree....30mpg even at 55mph is a stretch especially in a 4wd WK....

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post #1040 of 1267 Old 03-16-2014, 07:22 AM
james_2k
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feels horrible cruising at 2500 rpm though doesnt it. even my old wj 4.0 cruised at around 2100 at that speed.

also, when you are cruising, your larger wheels probably slightly help mpg. only when cruising though
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post #1041 of 1267 Old 03-16-2014, 08:19 AM
SSF556
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Originally Posted by james_2k View Post
feels horrible cruising at 2500 rpm though doesnt it. even my old wj 4.0 cruised at around 2100 at that speed.

also, when you are cruising, your larger wheels probably slightly help mpg. only when cruising though
Yes the WK needs a 6th gear badly...I have a 2012 ML350 with the 7 speed box and it cruises at 2100rpms while doing 80mph.....

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post #1042 of 1267 Old 03-16-2014, 08:27 AM
james_2k
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dont rub it in!
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post #1043 of 1267 Old 03-16-2014, 09:46 AM Thread Starter
Chirpz
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Quote:
Originally Posted by james_2k View Post
dont rub it in!
Don't feel bad about the 2500 rpm. When I cruise at seventy on my Honda I'm pulling 7,000 RPM..... of course it is only a scooter.

Chirpz
2007 WK 3.0L CRD, Quadradrive II, GDE EcoTune, DPF-Delete
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EHM MOD, Garmin Mechanic EcoHD, K&N Filter (Deleted)
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post #1044 of 1267 Old 03-16-2014, 11:36 AM
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must be noisy!
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post #1045 of 1267 Old 03-16-2014, 04:11 PM
hulikner
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Quote:
Originally Posted by scootr29 View Post
Valid point....but is your CRD lifted with 32 inch offroad tires? A lot of us have modified the vehicle and that is hurting mpg....

Need to clarify stock vs modified in the posts.....

Stock is nothing done at all to vehicle...same tires, no lift, no tune, exhaust..

Stock plus tune...GDE, DPF removal, but no lift and same OEM tire size.

Stock plus tune plus modified for offroad...32+ inch tires...2+ inch lift, underbody armor, heavier tires and wheels, winch, bumpers....

I wasn't saying everyone should be getting 30mpg. I was just trying to let others know that you can have boost leaks and no warning signs other than bad mpg. I wasn't attacking anyone. My road is over 40 miles of 55mph so that is why I always drive 55.

This is what I made and usedů

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post #1046 of 1267 Old 03-16-2014, 07:52 PM
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Got a pic of it installed?

2008 CRD QDII, OME HD, Pintlers wheels with 265/70/17 Goodyear Silent Armour's, Jeepinbyal UCA's. 4XGuard Front guard, Side Guard, belly guard, Matrix HC. GDE ECO Tune w/ delete.
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post #1047 of 1267 Old 03-16-2014, 08:07 PM
hulikner
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I was planning on attaching it straight onto the turbo inlet but it was too long. The fuel filter is in the way. So I put it in the tube where the intake attaches to the filter box. Next time I use it I'll just trim the black coupler a bit and then it will fit on the turbo inlet. It's a 2 inch coupler with the PVC elbow and 1/2 inch endcap. Then you screw your pressure fitting in, mine was 3/8 I believe. With no noise coming from the engine being on, every leak should be very noticeable. Just don't go over 25-30psi
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post #1048 of 1267 Old 03-17-2014, 12:48 PM
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Quote:
Originally Posted by hulikner View Post
I was planning on attaching it straight onto the turbo inlet but it was too long. The fuel filter is in the way. So I put it in the tube where the intake attaches to the filter box. Next time I use it I'll just trim the black coupler a bit and then it will fit on the turbo inlet. It's a 2 inch coupler with the PVC elbow and 1/2 inch endcap. Then you screw your pressure fitting in, mine was 3/8 I believe. With no noise coming from the engine being on, every leak should be very noticeable. Just don't go over 25-30psi
Hey hulikner, what maximum pressure does your WK run at. Checked mine yesterday and it peaks out at 22.6 PSI.
I have the GDE Eco tune.

Cheers, Craig
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post #1049 of 1267 Old 03-17-2014, 04:55 PM
Valpacer
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Yep thats right Craig. I have my Bullydog set to warning overboost alert at 24psi.

2007 WH Grand Cherokee CRD (Yup, RHD Australia)- 3" Exhaust, GDE Flash Tune, CRDSTU/SL Hybrid Lift & bash Plates, 4xGuard Rock Rails, Saguaro F & R Bars, RCV's, Warn 9.5cti-s, AEV Saverge Rims, Nitto Mud Grapplers, Snorkel, Custom Rear Drawers, On Board Air, BullyDog Monitor, Dual Batteries - Build Thread - YouTube Vids
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post #1050 of 1267 Old 03-17-2014, 05:34 PM
hulikner
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Quote:
Originally Posted by Cherokee30D View Post
Hey hulikner, what maximum pressure does your WK run at. Checked mine yesterday and it peaks out at 22.6 PSI.
I have the GDE Eco tune.

Cheers, Craig
That looks right for full boost. But mine was still hitting full boost on the gauge with the boost leak. The leak must have been after where it checked.
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