Water Methanol injection for Diesel?

Hello all, Mark here.

I'm considering installing a methanol injection set up on my Duramax to help assist with keeping EGR temps down during towing scenarios during summer months etc.

Something like this: https://prosourcediesel.com/shop/br...01-2019-6-6l-duramax-lb7-lly-lbz-lmm-lml-l5p/

any real world info much appreciated.

M

 

Where are all the diesel experts?

 

No diesel expert, but if I were doimg anything to a diesel truck my 1st call would be Banks.

 

I am not a diesel expert, either, but I don't think you should be spending any more of your racing budget on a stupid truck.

 

Racing and budget never go in the same sentence

 

I believe, you’ve misspoke with referencing “EGR temps”. I believe, you meant EGT’s? If so, runaway EGT’s are from too much fuel and not enough air. You can’t add one without the other or you’ll see climbing EGT’s. I can’t remember the temp at which GM’s ECM will step in, but, it’ll cut fuel/safeguard the engine, no matter what tune is loaded.

 

More fuel makes it cooler, not hotter.

 

Yeah - I typo’d - should say EGT.

Ken - as always thanks for calm and rational advice…

 

Copy - I have inquires out in several directions. Appreciate it.

M

 

Sure about that? https://www.facebook.com/share/r/ZsepDycgaCwXGDtT/?mibextid=oFDknk

 

My audi which had a whipple 140 ax added has a snow performance w/m injection setup. It injects it after the blower, only over 5k rpm and certain percentage of throttle. can’t tell what the egt’s are but i can tell it goes. Not a diesel though

 

Just curious, how high are your egt's and for how long?

You can also contact duramax tuner (aka calibrated power) out of woodstock Illinois and they can generally point you into the right direction as well.

 

In a gasoline engine, yes.

In a diesel engine, no.

 

This is definitely heading into airplane on a treadmill territory

 

After installing an egt gauge on our diesel pusher motorhome, it altered my driving habits for sure.

In my situation, running the wire from the back of the rig to the front was the biggest pita…. but well worth it.

 

My EGT’s dropped when the injectors got loose and my fuel economy dropped.

Never heard of a richer mixture causing more heat unless you’ve got too much air coming in.

 

That’s incorrect. You’re adding extra fuel, which creates the potential for a bigger fire. However, you also need to add extra air to stoke that fire and to completely burn the extra fuel. Not adding the extra stoke results in unburned fuel internally destroying the engine as well as getting pushed on out to the exhaust system and burning in there, which drives up EGT’s. You want 100% burn in the combustion chamber, where it actually makes power.

 

Would it be easier to just buy a bigger truck?

 

Stop trying to bring login into a perfectly good argument

 

Let me follow up and hopefully clarify the goal.

I am not having temp issues etc. Truck tows and pulls well and is well suited for the hauler we have.

The idea/goal is a preventative measure.

I monitor EGTs (and all the other stuff) via CTS3 as I tow a lot and try to maintain the truck and keep it in good shape as I want to get a long life out of it.

The injection set up was something I am considering to achieve that end.

As always, real world info and experiences are welcome.

Tks
M