LML Danville 3794 Stg2

[fallooffie]

Yeah my guy is confused too since they have went over every pipe and fitting more than once and still can't find a leak. Also fuel rail is holding 28k. AFE filter was removed during runs too. My guy has a friend in Minnesota and they apparently do a decent amount of turbo swaps on LML's. Friend said they've had great results using Motorops. So we're going to take a different approach and try out Motorops tuning. We're also seeing A LOT of smoke on bottom end. Like blacking out smoke. They think we have a vane position problem in the tuning. Who knows, we may not. PPEI has been great to deal with but somethings not right and we've gotta start deleting possibilities.

 

[Rancelot211]

Fwiw I also has problems with Kory tuning two different chargers on my lmm. First was a 3794 wouldn't spool at all and smoked like a freight train. So I changed chargers after looking for a boost leaks and everything else under the sun. Put my stg 2r on and same thing. Truck was lazy and tons of smoke. Got fed up with email after e mail. Switched tuners and haven't looked back since. He did refund me so can't complain there.

 

[fallooffie]

Ok so I lied on rail pressure confirmed it was 25k under full load. Is that good?

 

[Rancelot211]

Not your issue

 

[fallooffie]

Ahh that's good to know. I was wondering if I was going to be out of 1200 bucks if it turns out PPEI's tuning is the issue.

 

[fallooffie]

Thanks rancelot

 

[Chevy1925]

first off,

this is a dyno. you should not be comparing numbers. 50hp swing is very easy to see from dyno to dyno. none are the same. You should be using the dyno to get tuning dialed in for what you will be using the truck for and what each tune will be used for. dont get hung up on the number. the graph of the dyno is how you can dial a tune in for what you want to use the tune for and make other things work with it.

stock fueled truck, 32psi on the dyno isnt bad but id think you should be seeing something in the high 30s. i would bet you see more on the street. this is very common to see a difference.

if the tune you have is an all out race tune, smoke on the bottom end till the turbo comes up will be common. you may not even get all the fuel cleaned up when the turbo comes on.

i would be calling tony at ridgerunner in a heartbeat. i dont care for duramaxtuner/motorops.

 

[fallooffie]

Understood on the dyno part. I understand it's really just a tuning tool. My truck isn't a stock fuel truck though. See my sig. I'll see if I care for Motorops after we drop their tunes in the truck.

 

[Josh154]

I'm running a modded Lly charger with high flow vanes and many other mods. I really didn't see much gain and emailed back and forth with Kory. He says I need more fuel. I talked with mark and he says I should easily be 600hp range on stock fuel, mark even said Kory has to be missing something as mark built this same charger for years and has even got 700hp out if it with more fuel. I also believe it's something with my vane positioning not being correct with these high flow vanes. I will be switching to mark when I can. With my weight speed and time I'm only at 530hp. This turbo has the potential to move a ton of air but something is not right with the tuning and therefore I'm switching to mark.

 

[fallooffie]

Good to know Josh. Appreciate the input as your situation could be similar to mine.

 

[Dozerboy]

Sounds like motorsops has came a long ways since he started, but after the way he started out. I would be going to Tony. He has done more for Dmaxs then they could ever hope to.

Sent from my SAMSUNG-SM-G900A using Tapatalk

 

[clrussell]

Understood on the dyno part. I understand it's really just a tuning tool. My truck isn't a stock fuel truck though. See my sig. I'll see if I care for Motorops after we drop their tunes in the truck.

Looks like stock fuel to me... Lift pump doesn't count persay.. Oversize injectors / pump is not stock fuel

 

[fallooffie]

Yeah I was referring to the Fleece Powerflo 750 CP3 injection pump installed in the truck. I don't have oversize injectors though.

 

[Troysalm71]

Yeah I was referring to the Fleece Powerflo 750 CP3 injection pump installed in the truck. I don't have oversize injectors though.

If you ever get this figured I too would like to know. I just called Danville today on that turbo. They were up front and told me some have seen very good results others not so much. I too have Korys tuning. I'm looking at running this turbo for the fact it's a drop in replacement an not looking for a ton of power. Just looking to cool it down a little while towing. Maybe clean the smoke up too as this truck literally is as bad as a 12 valve no joke.

 

[fallooffie]

Will definitely keep the thread updated. I'm figuring it won't be till next week before the shop receives the Motorops autocal tunes and we can make some more runs. Fingers crossed for better results

 

[Chevy1925]

Understood on the dyno part. I understand it's really just a tuning tool. My truck isn't a stock fuel truck though. See my sig. I'll see if I care for Motorops after we drop their tunes in the truck.

Yeah I was referring to the Fleece Powerflo 750 CP3 injection pump installed in the truck. I don't have oversize injectors though.

all you took care of was rail pressure, not a way to inject more fuel. i know where LML injectors sit and the fuel they can produce.

25k is running low on rail pressure for an LML. you should be 27-30k. thats some missing HP right there.

 

[fallooffie]

That's the number the shop gave me but according to Kory he saw nothing wrong in the data. I'm sure he looked at rail pressure in the data and saw it was fine. Probably better then what the shop saw. Before I changed over from the CP4 to the CP3 Kory noted I had low rail pressure. I'm thinking issue would be resolved otherwise he would have said something. I'm hearing 700hp is about the limit for LML stock injectors but I could be wrong of course

 

[clrussell]

Yeah I was referring to the Fleece Powerflo 750 CP3 injection pump installed in the truck. I don't have oversize injectors though.

Yea I missed that.. And it's the first thing..

 

[Josh154]

I have also heard that stock lml injectors are good for right around that 700hp range. Im curious to see what happens when you switch tuning

 

[NC-smokinlmm]

I have also heard that stock lml injectors are good for right around that 700hp range. Im curious to see what happens when you switch tuning

Stock lml injectors are the equivalent to 60% over lbz injectors. You have plenty of fuel that 25k rail pressure is fine, it's your tuning. I was involved in an LML 3794 swap, we gave up, Kory was also tuning it. I will not ever swap another LML turbo until the hidden tables are accessed and Mark is building delete tunes for them. I don't ever see it happening though...

I have Motor ops on my 15 and it's a beast, spoolup is instantaneous, power is good and smoke is minimal...