Auzzie needing assistance

[willis388]

Hey guys, so I'm over in auz with a Nissan patrol I've installed an lmm and allison 6 speed into.

Currently runs great but would like to step up the performance a bit.

I've ordered an efilive scanflash v3 from overseas (they dont sell them in auz) to get some tuning done.

My current build is:
Engine: ARP headstuds, 4094 garret stage 2 turbo, MLS headgasket, alt firing cam order
Box: built box with PPE billet converter, auto lockup, trans cooler.
No dpf or egr (not required here).

Just looking for advice or tune files that will suit my build? side note i also have a dps5 on its way.

Any help much appreciated.

 

[2004LB7]

Welcome

A flashscan is a good choice as you can do all the tuning yourself without having to rely on someone else. But you can still use others tunes too

From the turbo you selected, I'm going to guess you'll need a transmission build sooner rather than later. Unless that's what you are referring to as a "box"

There are a handful of tunes in the library that are free to use. Try at your own risk. Your best bet is to use them to see what changes where made and do them to your own. Don't just download and install it on yours. Start small with minimal changes and see how it runs before making more changes.

There is lot's of threads here on tuning. Just use the search for table names and read up.

 

[gmduramax]

Also if you’re unsure about a change you made in the tune post it up and we can take a look.

Edit I think there’s still a timing calculator floating around somewhere that’s very helpful.

 

[2004LB7]

Calculators can be found under the "Duramax Tuning, Logging, and Gauges" section. There is a sticky called "calculators" that has it in there along with another sticky called "timing calculator V3" that has much discussion on the topic

 

[PureHybrid]

I have a few files I've wrote and you're more than welcome to have one. But they're based around stock turbo, never messed with the 4094 base. That size turbine is known to come up a little slower than most deem to be desirable. What stall is your torque converter?

 

[willis388]

Thanks for the replies and advice, it is much appreciated.

Unfortunately for me the only person doing tunes for the duramax this side of the country charges a small fortune, I had mine done but the dsp5 wasn't wired properly but I still got hit with the full bill after an hour on the dyno. Also hoping my tune isn't locked but we will have to wait and see.

I didn't realise there was more sections on this website to help explain what the tables do and mean so I'll definitely be heading there over the weekend. I was lead straight to this section by Google haha.

I'd like to learn all of this myself so I can help a few friends in the future who are building duramax patrols also so we don't have the headaches I did. I'll put up an open invitation to anyone who wants to jump on a call and show me how to go about adjusting tables and what order, I'm more hopeful I don't damage anything, parts are stupid expensive to get here.

Thanks again guys.

 

[2004LB7]

If you're planning on tuning yourself, which is highly recommend and rewarding when you finally get the hang of it and make some good tunes, take a look at the 20/20 tutorial. It a very good start or introduction to tuning. It's a very basic tune that can be made much better if you spend more time with it. Ultimately you're going to probably spend as much time on the vane tables as you spend on the rest of the tune. Vane tables are going to make or break how the truck responds and drives.

 

[willis388]

If you're planning on tuning yourself, which is highly recommend and rewarding when you finally get the hang of it and make some good tunes, take a look at the 20/20 tutorial. It a very good start or introduction to tuning. It's a very basic tune that can be made much better if you spend more time with it. Ultimately you're going to probably spend as much time on the vane tables as you spend on the rest of the tune. Vane tables are going to make or break how the truck responds and drives.

Definitely planning on learning for myself, I enjoy learning new unique skills like these.

Can I ask where the 20/20 tutorial is?

I was actually reading up on vane adjustments last night and came to the same conclusion. Though I feel like I'm going to have a lot to learn in that department.

 

[PureHybrid]

So the guy charged for a dsp5 tune? If he didn't scam you and actually loaded a dsp tune, you should be able to fix the switch and move on with life. With your scanner you'll be able to log the switch voltage to verify it's working

 

[willis388]

So the guy charged for a dsp5 tune? If he didn't scam you and actually loaded a dsp tune, you should be able to fix the switch and move on with life. With your scanner you'll be able to log the switch voltage to verify it's working

From my understanding there's an led on the back of the switch that shows which position it's in, I checked and there's no flashing led.

I was told that they were able to get position 1 working which doesn't make sense to me so figured I'd learn how to tune it myself

 

[2004LB7]

From my understanding there's an led on the back of the switch that shows which position it's in, I checked and there's no flashing led.

I was told that they were able to get position 1 working which doesn't make sense to me so figured I'd learn how to tune it myself

Position 1 would just be the main or default tune. Depending on the tuner, it could be the stock power tune or could be your hot tune.

The scanner part of your V3 is able to actually see the switch position and what DSP it should be in. Could also be that it wasn't full flashed and the DSP tune only loaded up the main part of the tune with no DSP options.

By the way, a DSP tune can't be read out even if unlocked. Hopefully you still have your stock tune to work off of

 

[willis388]

Position 1 would just be the main or default tune. Depending on the tuner, it could be the stock power tune or could be your hot tune.

The scanner part of your V3 is able to actually see the switch position and what DSP it should be in. Could also be that it wasn't full flashed and the DSP tune only loaded up the main part of the tune with no DSP options.

By the way, a DSP tune can't be read out even if unlocked. Hopefully you still have your stock tune to work off of

Yeah that was part of the reason I purchased the V3, so I can look at things like that.
They set it up to have 350hp at the hub on the dyno so seems pretty conservative to me.

I did read that somewhere, I'm kind of hoping that because the dsp5 switch didn't work they tuned it to a single tune and didn't lock it so I can adapt it. But will see how it goes this weekend.

 

[2004LB7]

350hp is very conservative. You're basically running the van tune at that point.

You should be able to conservatively do ~500hp

 

[willis388]

350hp is very conservative. You're basically running the van tune at that point.

You should be able to conservatively do ~500hp

I was told around the 550-600hp is where I would be limited, though I'm happy to be conservative as I more worry about breakages.

I'll have a look this weekend at trying to get my current tune off the ECU and modify it to dsp5 and upload it here for people to have a look at.

 

[willis388]

350hp is very conservative. You're basically running the van tune at that point.

You should be able to conservatively do ~500hp

So I've received my flash scan and as suspected the tuner has uploaded a dsp5 tune so I'm unable to read it.

I've been looking for a stock tune and I'm seeing that if I find one, I need one that matches the OS of my ecu? (25844503) Which I was able to read from the ecu.

 

[PureHybrid]

With an engine swap setup, I would just run any LMM operating system you can find, you'll just need to do a full flash. The ecm isn't talking to any other modules correct? If there's a dsp file in there already, get your switch wired up correctly

 

[willis388]

With an engine swap setup, I would just run any LMM operating system you can find, you'll just need to do a full flash. The ecm isn't talking to any other modules correct? If there's a dsp file in there already, get your switch wired up correctly

So the need to match the OS to the ecu is irrelevant once it's not talking to any other systems?

 

[PureHybrid]

Right. The operating system can even still be swapped in the OE vehicle if you keep the correct segments for the other parts of the system