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CRD Joe
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Joined: 18/07/2009 21:11:02
Messages: 49
Location: Seattle, Washington
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Hello, Im big into vehicle modification. Im interested in this trubo upgrade. Maybe a little explanation as to what will be included/involved in the retrofit.

Thank you.

P.S., any thoughts of offering an aftermarket intercooler at the same time?

'05 CRD
Suncoast, Transco, Inmotion, Provent, ORM Snorkle, HID's, 2.5" Cat back no muffler, V6 Airbox, Fumoto, Cat 2 filter
GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 348
Location: Southeast Michigan
The first unit we pushed through to get the testing started, the second build we will take pictures and give detailed instructions for assembly. For sure, the kit will contain all hardware/software necessary for the retrofit. The intercooler on the KJ is respectable, we may test some alternatives if packaging is feasible. Would you prefer an intercooler tuned for peak power or peak fuel economy?

We appreciate the interest.

GDE
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CRD Joe
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Joined: 18/07/2009 21:11:02
Messages: 49
Location: Seattle, Washington
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GreenDieselEngineering wrote:The first unit we pushed through to get the testing started, the second build we will take pictures and give detailed instructions for assembly. For sure, the kit will contain all hardware/software necessary for the retrofit. The intercooler on the KJ is respectable, we may test some alternatives if packaging is feasible. Would you prefer an intercooler tuned for peak power or peak fuel economy?

We appreciate the interest.

GDE


Dang it, as much as I dig the power, fuel economy im guessing.

'05 CRD
Suncoast, Transco, Inmotion, Provent, ORM Snorkle, HID's, 2.5" Cat back no muffler, V6 Airbox, Fumoto, Cat 2 filter
LOSTCRD

Joined: 18/07/2009 22:51:54
Messages: 26
Location: San Antonio, Texas
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Any issues with a 1752 not being able to bleed off boost over 3300 rpm or so? Maybe with a low RPM diesel like ours it would not present a problem.

As for intercooler, I would like one that helped fuel mileage and protected hardware first and foremost...but then again, power is always fun. I really wish there were a way to relocate it so the mechanical fan could be removed safely.


2006 Jeep Liberty CRD...OME Lift...ASFIR Aluminum Skids and Steps...

DarbyWalters @ L.O.S.T.
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GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 348
Location: Southeast Michigan
The 1756 turbo has no issues bleeding off boost at any load/rpm range this engine operates in. With the vane mechanism on the turbine, we can open these up to bleed off boost. The vanes are just increasing or decreasing the flow area the exhaust gas passes through just prior to going into the turbine impeller wheel. The vanes also help direct the flow to be at the optimum attack angle to the turbine blades.

Long term we are investigating using the vane system to better control the coasting capability of the vehicle. For example, if you let off the throttle on the highway and coast it would be best to have the vanes full open so there is no backpressure restriction on the exhaust system and the engine will have less drag on the driveline. However, if you are pulling a trailer down the mountain, it would be adventageous to set the vanes to a 3/4 closed position as this will increase the exhaust backpressure and increase overall engine braking. Good to have going down a hill to save brakes. This is a similar concept to a jake brake (same end goal of increasing engine braking), just not as powerful as a jake brake because the intake and exhaust valve control is not changed.
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dgeist
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Joined: 21/07/2009 10:57:32
Messages: 10
Location: Atlanta, GA
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LOSTCRD wrote:Any issues with a 1752 not being able to bleed off boost over 3300 rpm or so? Maybe with a low RPM diesel like ours it would not present a problem.

As for intercooler, I would like one that helped fuel mileage and protected hardware first and foremost...but then again, power is always fun. I really wish there were a way to relocate it so the mechanical fan could be removed safely.



I would echo the same requirements for a intercooler/turbo (or for any mod for that matter). It can't decrease the milage or reliability or many would scoff. I think most CRD owners are in it for the long haul, otherwise we'd drive cummins B-series diesels and mod the poo out of them... Is the expectation that with the advantages this Garrett unit offers you would actually be able to get all three in the base package (similar durability/longevity to stock, no decrease in milage, increase in power/torque)?

Thanks.
Dan
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GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 348
Location: Southeast Michigan
Here are out goals for the Stage II turbo kit:
1. increased power/torque, linear power delivery
2. slightly improved fuel economy in steady state driving
3. similar longevity to stock turbo

We have been running the turbo in one vehicle for about 6 weeks. The development is progressing well and we are running the vehicle very hard to simulate a durability cycle. We are planning a cross country towing validation trip in a couple weeks. There is no plan to release this product until we have a solid confidence in its reliability. The manufacturer will not provide a product warranty for the new turbo as we have to perform some machining operations and weld new flanges on for mounting and support reasons. The volumes are not high enough for the turbo manufacturer to have a unique design to fit our KJs without mods. Changing the tooling could run into the millions on a turbocharger.

The tune will ensure the new turbo functions within all its design limits in any ambient temp and altitude. Our company goal is to build a good reputation for providing well engineered solutions, releasing a product with potential issues is not part of that strategy. We want to tune every diesel available in the US long term, the KJ is the first.
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CRD Joe
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Joined: 18/07/2009 21:11:02
Messages: 49
Location: Seattle, Washington
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I was fortunate enough to buy a truck that already had a Suncoast conversion. Im excited about the trubo
kit being released!

'05 CRD
Suncoast, Transco, Inmotion, Provent, ORM Snorkle, HID's, 2.5" Cat back no muffler, V6 Airbox, Fumoto, Cat 2 filter
brew1

Joined: 18/08/2009 22:13:29
Messages: 15
Location: Richfield WI
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GreenDieselEngineering wrote:Here are out goals for the Stage II turbo kit:
1. increased power/torque, linear power delivery
2. slightly improved fuel economy in steady state driving
3. similar longevity to stock turbo

We have been running the turbo in one vehicle for about 6 weeks. The development is progressing well and we are running the vehicle very hard to simulate a durability cycle. We are planning a cross country towing validation trip in a couple weeks. There is no plan to release this product until we have a solid confidence in its reliability. The manufacturer will not provide a product warranty for the new turbo as we have to perform some machining operations and weld new flanges on for mounting and support reasons. The volumes are not high enough for the turbo manufacturer to have a unique design to fit our KJs without mods. Changing the tooling could run into the millions on a turbocharger.

The tune will ensure the new turbo functions within all its design limits in any ambient temp and altitude. Our company goal is to build a good reputation for providing well engineered solutions, releasing a product with potential issues is not part of that strategy. We want to tune every diesel available in the US long term, the KJ is the first.


No warranty on the turbo, ouch!!!

About how much additional HP and Torque are you expecting to generate with this turbo package vs. the stock turbo with the hot tune?

"Can't drive 65"

05 CRD Limited, RC1, 3rd DC TC, F37
57,000 miles on a 7/70 DC warranty as of 8-20-09
GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 348
Location: Southeast Michigan
Check under "faq" and "engine performance" inside the forum, it shows the torque and horsepower graphs for all the tunes vs. stock. However, the graphs can't tell the full story. The turbo shines in city driving, the response is much quicker than stock. You find that there is always more pedal than what you need. On the highway, the passing performance is linear...from 60 to well past any legal speed...less the autobahn! In cruise, the turbo has slightly less restriction, so this helps with fuel economy.

The lack of warranty may be an issue for some, but the vehicle in general is out of warranty. The turbo kit is an aftermarket option for people that want to see what the CRD is fully capable of. We are keeping the design limitations in check, however the driveline was never tested to this extreme. The fact that it has survived the flogging thus far is a testament to the 45RFE! We are still running the stock TC, so we have not fully unleashed the torque from 1600-2200 rpm. This is the most efficient SUV on the road today! Try to pull a 3000lb. trailer with an Escape hybrid...not even the same sport!
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CRD Joe
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Joined: 18/07/2009 21:11:02
Messages: 49
Location: Seattle, Washington
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Bag the warrenty! Full speed ahead!

'05 CRD
Suncoast, Transco, Inmotion, Provent, ORM Snorkle, HID's, 2.5" Cat back no muffler, V6 Airbox, Fumoto, Cat 2 filter
mk38tech

Joined: 06/11/2011 10:40:20
Messages: 1
Location: pensacola florida
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has anyone tried removing the mechanical fan? havent had much time to look to see whats stopping me from taking it off. i put flexalites on the cummins and it works great.
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