More power

[racinmike77]

Right now Im running a 3200PW tune in my LLY with max timing at 30*, stock TCM tuning clicks off the shifts before 3500.

I have stock vane tables, maybe someone would shed some light on vane tuning for me, I dont have a drive pressure gauge so I could take any advise that is given. Also would i make more power with extra timing? Obviously more timing will run cooler but will it make more power?

 

[paint94979]

Right now Im running a 3200PW tune in my LLY with max timing at 30*, stock TCM tuning clicks off the shifts before 3500.

I have stock vane tables, maybe someone would shed some light on vane tuning for me, I dont have a drive pressure gauge so I could take any advise that is given. Also would i make more power with extra timing? Obviously more timing will run cooler but will it make more power?

38* try it you will like it

 

[racinmike77]

38* try it you will like it

Yea thanks alot I have that much at 4800rpm. Thanks for the help, sorry we dont all have access to the secret tuning section.

 

[paint94979]

Yea thanks alot I have that much at 4800rpm. Thanks for the help, sorry we dont all have access to the secret tuning section.

? facts are facts more timing makes more power i ran roughly 150-175 hp more than you while running 38* timing obviously i didnt run 38* at 3,000rpm

 

[racinmike77]

? facts are facts more timing makes more power i ran roughly 150-175 hp more than you while running 38* timing obviously i didnt run 38* at 3,000rpm

Well figure it out, look at a log or a tune its not that hard, are you seriously that dumb to figure out how much timing you have at a given RPM?

If you have nothing helpful to add please dont post, if more timing is more power why dont you just run like 50*? I realize there are multiplers and things that adjust timing but figure it out before you make a stupid post.

 

[paint94979]

Well figure it out, look at a log or a tune its not that hard, are you seriously that dumb to figure out how much timing you have at a given RPM?

If you have nothing helpful to add please dont post, if more timing is more power why dont you just run like 50*? I realize there are multiplers and things that adjust timing but figure it out before you make a stupid post.

LOL of course i know how much timing at what RPM i am running your initial response insinuated that 38* should be ran at 4800rpm and i responded by saying(paraphrase)"i don't run 38* at 3000rpm) check out JoshH's calculator it is a very useful tool... I bet you are a little anal retentive tough guy huh?

 

[racinmike77]

Thanks again

 

[McRat]

Yea thanks alot I have that much at 4800rpm. Thanks for the help, sorry we dont all have access to the secret tuning section.

Timing depends on boost, rpm, and the amount of fuel shot in.

The wisest thing to do, is to reserve a good dyno, take a day off work, bring a notepad, a memory stick, some snacks and water, and play with the timing and vane tables.

That is pretty much all there is to my tuning. No secret tuning, no magic tables, just legwork. Yes, I have a tune library area that is reserved for customers, but it's hardly a secret and lots of "unauthorized" people have been in there.

If you are running 30 deg at 3000rpm at peak HP with a roughly 3150-3250 PW, and making 28-34 PSI boost, you are running pretty much the same tuning I've been running for >4 years and continue to run today.

Now Casper runs over 40 degrees at peak HP, but it makes a lot more boost and spins a lot faster than a tune-only truck. When staging at the strip, it's making over 30 deg on the line. But that was also figured out on a dyno, and will not work on all trucks.

 

[sweetdiesel]

I would lower you max vane pos in the WOT area go untill you boost starts to fade off.....this should also help a bit with turbo bark if you experiance any? And lower your EGTS

 

[Diesel Pilot]

I would lower you max vane pos in the WOT area go untill you boost starts to fade off.....this should also help a bit with turbo bark if you experiance any? And lower your EGTS

x2

You don't really need a drive pressure gauge to tune the vanes. Just watch EGT's and boost closely. Like Simon said, when it will no longer hold boost you've gone just a bit too far. Also, the EGT will kind of bottom out and start coming back up when the vanes are set too low.

I'd leave the pulse and timing alone, that sounds about right for 3000 rpm.

 

[racinmike77]

Thanks guys
Pat- sounds like my tuning is fairly close as far as PW and Timing, thank you

Simon- Yes I have lots of turbo bark so Ill work on that max vane table, thanks

Im also going to try and lower my PW to around 3000 and see if it brings my actual fuel pressure a little closer to my desired. I have the airdog but the stock cp3 just cant keep up.

 

[Dozerboy]

I picked up quite a bit by lowering boost below 50mm3 and making the "boost curve" steeper. This is with a much smaller tune though. After I got the boost where I liked I made a map of the Vane% out of a long log I made driving normal with a few WOT runs. I used that map to make new Vane tables.

 

[Mike_S]

Havin tuning troubles huh? Thought you had done so many of these that you were pro...thats what you insinuated to me...:thumb:

 

[racinmike77]

Havin tuning troubles huh? Thought you had done so many of these that you were pro...thats what you insinuated to me...:thumb:

Pro? Shit im an Expert.

 

[Mike_S]

An expert at what? You're braggin about tuning 4 trucks, yet are unable to grasp what your injection timing should be set at? LOL! Good luck with your tuning bub.

PS: You should try setting your timing at 45* or 50* around 2500-3000...You will like the result. :thumb: :spit: :rofl:

 

[MMLMM]

...
PS: You should try setting your timing at 45* or 50* around 2500-3000...You will like the result. :thumb: :spit: :rofl:

whats wrong with that?

j/k

@3300rpm, im running:

33.4°
3300uS
180Mpa fuel pressure
34psi boost
20% vane pos
give or take a few other tables

runs pretty damn strong for stock turbo.....

 

[racinmike77]

whats wrong with that?

j/k

@3300rpm, im running:

33.4°
3300uS
180Mpa fuel pressure
34psi boost
20% vane pos
give or take a few other tables

runs pretty damn strong for stock turbo.....

Thank you :thumb: Looks like I have some work to do on my vane tables. How well do you hold 180mpa with 3300pw?

 

[MMLMM]

Thank you :thumb: Looks like I have some work to do on my vane tables. How well do you hold 180mpa with 3300pw?

FWIW, I am also a LMM so adjust for that a little. I dont hold it very well with this piece of chit fass 95 (think its broke) but my with my PPE lift pump it would hold.

 

[racinmike77]

Im only commanding 170mpa, and desired vane position is around 37% at 3250 right now

http://www.duramaxdiesels.com/forum/showthread.php?t=22988

 

[sweetdiesel]

Mike it's been a while but iirc u need to adjust target posistion

the table efi gives us in the dsp tunes whatever table that is? Never did anything for me

it's been a while so o would have to look back at some old tunes and see what I did, if your still having high dp and efts I'll have a look back and give u se numbers to try