Elevated idle option

Mountainman · **Posted:** Tue Nov 03, 2015 11:13 am

If Jeff's HDS 001 thermostat isn't going to bring me up to temp a LOT faster than the [clamshell inline with a small hole], then I'll be interested in this also.
I'm thinking I'd prefer 1200 rpm, but maybe you can make one for the normal Northern regions on Earth (NW US, and NE), and then one for the terrible frozen Mid West, Canada, and AK? I mean, isn't that just a slight difference in the same code?

As always, thank you for further improving our CRD's!

Yeti · **Posted:** Tue Nov 03, 2015 6:22 pm

I have a question for GDE , is possible to increase the rpm in base of the load ? for example with AC on and other accessory ?

Mike92104 · **Posted:** Wed Nov 04, 2015 2:41 am

olypopper wrote:

geordi wrote:

olypopper wrote:

I would love to try it. My first crd high idle was a small tool bag that I propped against the accelerator pedal when it was cold out.

Let me know if there is anything I can do to help with the the program. Winter is here, +5 f this am. 1500 rpm would be my preference. 1200 doesn't make useable heat at -40.

For you... I'd say start by removing the engine fan entirely if you haven't already, and put an engine blanket on the INSIDE of the radiator, with only a small hole like the truckers use.

Then the thermostat might have a prayer of bringing the engine up to temperature. You have a special situation, that is for certain.

Fan is ghandi........all of my rigs have a winter front to block the radiator. No heat can be made at idle. Not enough waste heat available. More rpm is what I need.

If I lived in your area, is be looking into one of these:
http://www.webasto.com/us/markets-produ ... ro-50-eco/

rankom · **Posted:** Thu Nov 05, 2015 6:34 pm

I'm with Mikes idea (webasto) . i have it on my big rig dd for 10 years i love it , but only problem is limited space in engine bay to install it ,i think we would have to remove air box and put in there and put in kn air filer , inlet hose at wp elbow and return at cylinder head egr coolant hose , model i have is small unit dsl 17 with timer

Yeti · **Posted:** Fri Nov 06, 2015 6:23 am

for GDE , I want suggest with humility that 1500 is too high , I have tried this mod at 1500 rpm and 1300 rpm , for me' and for what I have do in my ECU the 1500 rpm is too high they tend to push and when you go down hill is not funny , 1300 rpm with a stock VH Hysteresis rise the water temp in little time.

for move the jeep we must wait that the engine is fully warmed

ChooChooman74 · **Posted:** Fri Nov 06, 2015 8:10 am

Yes! Count me in!

Sent from my Samsung Note 4 using Tapatalk.

seawheeler · **Posted:** Fri Nov 06, 2015 8:49 am

Great idea, yes I would be interested.

jrsavoie · **Posted:** Fri Nov 06, 2015 6:18 pm

rankom wrote:

I'm with Mikes idea (webasto) . i have it on my big rig dd for 10 years i love it , but only problem is limited space in engine bay to install it ,i think we would have to remove air box and put in there and put in kn air filer , inlet hose at wp elbow and return at cylinder head egr coolant hose , model i have is small unit dsl 17 with timer

A guy here and on the Facebook page has one installed. He installed it in front of the fuse box. Apparently there might be a kit or something.

I Would really like one on all of my diesels myself

flman · **Posted:** Fri Nov 06, 2015 6:44 pm

I would like to have that high idle feature, for heat, and also to get the pressures up on the transmission. I think being able to control it year round would be better. I used to own a Freightliner FL50 and I could use the cruise control switch to get high idle, maybe you can program such a thing?

olypopper · **Posted:** Fri Nov 06, 2015 6:55 pm

I run Espar heaters on my Dodge trucks. It never even occurred to me to install one on the Jeep............I may look at installing a drop tube for fuel while I've got the tank out for the in tank pump install.

rankom · **Posted:** Fri Nov 06, 2015 7:43 pm

agreed 100% espar is good as webasto , company i work for scraped so many trucks with these units what a waste . i have acess to hydro so i used block heater, but one day ill install espar or webasto , this units are so relaliable , the only problem i had was harness having bad connection ,because in ontario they us road grime (winter time) this is on my big truck , no matter how cold it is its started thanks to German engineers.

jrsavoie · **Posted:** Fri Nov 06, 2015 7:58 pm

Here is a link to the thread on the heater.

viewtopic.php?f=5&t=78297

Installation instructions in German

http://doc.webasto-russia.ru/Car/Jeep/C ... .8_d_D.pdf

GreenDieselEngineering · **Joined:** Sun Jun 07, 2009 5:10 pm **Posts:** 1111

1500 rpm does require a bit too much brake pressure. It felt good 1100-1250 rpm, but we need to adjust the timing and pilot injection to shift the heat release a bit. The viscous heater works fairly quickly with rpm above 1000. Hope to have something finalized in the next month.

olypopper · **Posted:** Sun Nov 08, 2015 3:22 am

GreenDieselEngineering wrote:

1500 rpm does require a bit too much brake pressure. It felt good 1100-1250 rpm, but we need to adjust the timing and pilot injection to shift the heat release a bit. The viscous heater works fairly quickly with rpm above 1000. Hope to have something finalized in the next month.

Let me know, please

ChooChooman74 · **Posted:** Thu Dec 03, 2015 5:05 pm

Matt and Keith,

At what coolant temp does the VH currently turn off in your tunes? I am asking this because I believe my VH is turning off before my thermostat opens (192 deg Inhose assisting an operating stock, will change to the Hot Diesel Thermostat next TB service). I have nice heat, then suddenly, cold. Then, the heat comes on again a bit later. I was thinking in my retune, getting the VH off maybe 20 degrees hotter on the coolant. Does that sound like it would work a bit better?

mass-hole · **Posted:** Thu Dec 03, 2015 5:43 pm

ChooChooman74 wrote:

Matt and Keith,

At what coolant temp does the VH currently turn off in your tunes? I am asking this because I believe my VH is turning off before my thermostat opens (192 deg Inhose assisting an operating stock, will change to the Hot Diesel Thermostat next TB service). I have nice heat, then suddenly, cold. Then, the heat comes on again a bit later. I was thinking in my retune, getting the VH off maybe 20 degrees hotter on the coolant. Does that sound like it would work a bit better?

That doesn't sound right. Mine hasn't done that since my inline tstat was put in. It did fluctuate when I was on my failed factory tstat though. It will get up to about 190 but I have never seen it below 185/186.

ChooChooman74 · **Posted:** Thu Dec 03, 2015 7:23 pm

My cold morning commute consists of 2 min idle, 0.1 mi to main road, 1mi to highway, then up to 70 miles to work, mostly hiway. VH produces heat already before the highway. When I get to 1/4 temp, I lose heat until approx 3/8. I mean, it is like 2 minutes, but if I can get that reduced, it would be great.

Sent from my Samsung Note 4 using Tapatalk.

mass-hole · **Posted:** Fri Dec 04, 2015 3:00 am

ChooChooman74 wrote:

My cold morning commute consists of 2 min idle, 0.1 mi to main road, 1mi to highway, then up to 70 miles to work, mostly hiway. VH produces heat already before the highway. When I get to 1/4 temp, I lose heat until approx 3/8. I mean, it is like 2 minutes, but if I can get that reduced, it would be great.

Sent from my Samsung Note 4 using Tapatalk.

Oh I see, I thought you meant the actual coolant temp was fluctuating, not just the vents. I usually leave my heat off until the engine warms up so i don't know that I've ever noticed.

When I had my bad tstat, I used to see the temp gauge plummet as I would coast down hill and the vents would go cold, but then come back up once I got on the throttle again.

thermorex · **Posted:** Fri Dec 04, 2015 6:33 am

ChooChooman74 wrote:

My cold morning commute consists of 2 min idle, 0.1 mi to main road, 1mi to highway, then up to 70 miles to work, mostly hiway. VH produces heat already before the highway. When I get to 1/4 temp, I lose heat until approx 3/8. I mean, it is like 2 minutes, but if I can get that reduced, it would be great.

Sent from my Samsung Note 4 using Tapatalk.

Did you try to jump the vh by pulling the relay and see the difference? Starting from the garage, I get heat as soon as the water gauge moves, and it consistently goes up, with the cabin heat with no heat lose. I have stock thermostat and no vh working. I may not get heat as soon as you do though.

I remember gde tune lowering the vh decoupling to about 1/4 coolant gauge. Do you think the symptom can be generated by your thermostat setup?

GreenDieselEngineering · **Joined:** Sun Jun 07, 2009 5:10 pm **Posts:** 1111

ChooChooman74 wrote:

Matt and Keith,

At what coolant temp does the VH currently turn off in your tunes? I am asking this because I believe my VH is turning off before my thermostat opens (192 deg Inhose assisting an operating stock, will change to the Hot Diesel Thermostat next TB service). I have nice heat, then suddenly, cold. Then, the heat comes on again a bit later. I was thinking in my retune, getting the VH off maybe 20 degrees hotter on the coolant. Does that sound like it would work a bit better?

Stock has the VH on up to 172 F, this leads to excessive VH running in the cooler months if the t-stat is failing. The GDE tune turns it off at around 155 F, this still produces ample heat. The VH turns off above 2250 rpm if I recollect correctly due to internal limitations. You might have a flow issue for it to blow cold intermittently. Seems like the coolant is not going through the heater core properly or an air pocket of some sort.

Elevated idle option

Who is online