I didnt want to mix up the threads by posting unrelated information so I figured I would start a new one.  This thread is for figuring out what works and what you find your truck likes.  

 

I did some more datalogging as of late and found that a more aggressive timing curve later in the rpm band, say 2500 + rpm, seems to pull harder up top.  Previous I was running tunes that maxed timing at 26*.  I took 2 tunes copied them and ran them back to back on the same stretch of road, same conditions.   I was not using wiretap for this so I will leave those details out

 

First Tune 29* max

Quote

Race 29*
Number of Power Levels	6
RPM Limit	3700
Valet Mode
Maximum Valet Mode Power	35
Timing Parameters
Fuel Load Timing	1
Low PSI Timing Reduct	5
Timing Reduct Scaling	80
LightThrottle Timing Adv	1
Light Throttle Limit	35
Timing Equilzer
1500RPM	16
2000RPM	19
2500RPM	24
3000RPM	27
MAX	29
Boost Level Fueling - CAN Bus
0 PSI	88
1 PSI	90
2 PSI	92
3 PSI	94
4 PSI	98
5 PSI	102
6 PSI	106
7 PSI	110
8 PSI	114
9 PSI	118
10 PSI	122
11 PSI	126
12 PSI	130
13 PSI	134
14 PSI	138
15 PSI	142
16 PSI	146
18 PSI	150
20 PSI	150
22 PSI	150
24 PSI	150
26 PSI	150
28 PSI	150
30+ PSI	150

 

Second Tune 26* max

Quote

race 26*
Number of Power Levels	6
RPM Limit	3700
Valet Mode
Maximum Valet Mode Power	35
Timing Parameters
Fuel Load Timing	1
Low PSI Timing Reduct	5
Timing Reduct Scaling	80
LightThrottle Timing Adv	1
Light Throttle Limit	35
Timing Equilzer
1500RPM	16
2000RPM	19
2500RPM	22
3000RPM	25
MAX	26
Boost Level Fueling - CAN Bus
0 PSI	88
1 PSI	90
2 PSI	92
3 PSI	94
4 PSI	98
5 PSI	102
6 PSI	106
7 PSI	110
8 PSI	114
9 PSI	118
10 PSI	122
11 PSI	126
12 PSI	130
13 PSI	134
14 PSI	138
15 PSI	142
16 PSI	146
18 PSI	150
20 PSI	150
22 PSI	150
24 PSI	150
26 PSI	150
28 PSI	150
30+ PSI	150

 

 

The interesting thing is the tunes are the same except for the timing above 2500 rpm.  If you look on the graph rpms hit that 2500 rpm mark at about line 20-21, each line is ~.3 seconds so 3 lines = 1 second.    You can see where timing jumps and also where boost jumps. 

 

Now keep in mind the graphs are not exact so take them with a grain of salt, but everything appears to show that the tune with higher timing up top gives faster time to 50 mph, and a faster ramp up of boost.  The higher timing tune appeared to reach 50 mph nearly 1 second faster.

 

as always studs are a good idea, but I am fairly sure anyone can run this timing above 2500 rpm.    If people are not blowing their heads off left and right with other tuners then there is no reason why this type of timing curve will hurt with the Quadzilla. 

 

 

Food for thought, open to other thoughts.

make sure you get a video or two of a WOT take off and a lugged 35 mph locked pull.   pretty please

18 minutes ago, Me78569 said:

make sure you get a video or two of a WOT take off and a lugged 35 mph locked pull.   pretty please

 

Yeah yeah I'll get it haha. 3rd or OD for the 35mph pull? When my torque converter slips it should really help spoolup lol. 

Edited January 5, 20187 yr by kzimmer

3rd, give your tc a break

How is everyone's start up with higher pops? Cold and hot and at what ambient temps? 

at 330 bar my starts are considerably better than with the stock pop 7 x .009's.   Tomorrow I should know if the stock bar is better or not for starting.  

 

 

There may be a limit to where that turns upside down though.

Well that line is still leaking... Guess I'll have to take it all the way off and start over on that set of 3 lines.. I have loosened and tightened 4 times now with no success

16 hours ago, dirty830 said:

Just got my DAP 7x13 sac 365bar. I might get them installed but it's a bit cold out right now at 60f. More info to come. 

 

That is perfect outdoor working weather.

21 minutes ago, jlbayes said:

but it's a bit cold out right now at 60f

 

22 minutes ago, jlbayes said:

That is perfect outdoor working weather.

 

Absolutely... Jeans and a tee shirt and go for it. You'll never sweat and it like good cool air conditioning. 

Im a desert rat I dont like this cold weather. I wont complain when its 110F or im working in a 130F attic but this cold kills me! I am currently about 1/3 of the way into getting these injectors in.

Just to be clear. 44ftlbs is the correct torque? 

I ment 28 ft/lbs Idk why I said 44.. Either way is that right? 

Injector hold down? 89in/lbs. I believe is what you're looking for.

Sorry no the injector line nut

Stock bar 7 x .012's are in.  

 

this is very early in the testing process, but so far I miss the 330 bar injectors.  I will need to review the logs and videos, but I feel like the idle is lopier,   Offidle and transition smoke is up, and the turbo seems laggier now.  @kzimmer I think you said your spool was improved with higher pop as well?

 

Upper end power, 2600+ rpm seems like it might hold alittle longer.  but I am really not sure on that.  Honestly power wise I dont notice much difference.  I couldn't say I gained 40 or even 20 hp.  EGTS appear to be similar on WOT pulls before lockup.  

 

Anyways take that with a grain of salt as I have limited time with them so far.  Full videos and logs will come Monday.  

 I data logged a bunch of stuff for @Me78569's thread, got a couple videos, and pulled my injectors today. This is really interesting and I'm wondering if @dieselautopower might have some insight to an amature pop tester.

 

When I installed these injectors in November, I set them all to 365 bar. I'm very sure of that. Each one triple checked. When I took them out, they all tested between 350-355 bar. So I lost 10-15 bar. Same testing fluid, similar temperature conditions. Same pop tester. I'm happy that they were all still balanced, I'm just confused about the change.

 

I set them all between 330 and 335 bar. I'll do some more logging tomorrow at the new pop pressures, and take a couple more videos. I have a lot of data to go through and no computer with me.

3 hours ago, Me78569 said:

@kzimmer I think you said your spool was improved with higher pop as well?

 

Yes absolutely. And I don't want to comment as absolute yet, but I immediately noticed a longer spoolup time when going WOT from a dead stop at 330 bar. Also more visible smoke. Timing and fuel adjustments might make this better, but too early to tell, and I'm not changing anything until all my data is collected tomorrow.

 

I haven't noticed much different up top yet, but sub 2000rpm (spoolup) seems to have suffered.

Edited January 6, 20187 yr by kzimmer

1,2 and 4 lines off change cleaned up tip with 800, 1000, and 1500 grit paper then loosened all the blue clamps put back in tightened to spec.... Still leaks on #2.. Loosened and re torqued (again) still leaks.... Ugh I give up

Injectors are in and all i can say is wow. Big thanks to @dieselautopower for the injectors. going to start tuning and ill get some logs if i can get that figured out.

26 minutes ago, Dodgeih said:

1,2 and 4 lines off change cleaned up tip with 800, 1000, and 1500 grit paper then loosened all the blue clamps put back in tightened to spec.... Still leaks on #2.. Loosened and re torqued (again) still leaks.... Ugh I give up

 

 

This sounds dumb but did you replace the orings?   I fought leaky lines for ALONG time to find that the orings got tore on install.

I can't wait until I can get some good videos and logs! Will likely be next weekend at best..need to get the injector line to stop leaking and will warm up to 30s next week so I can get #2 back in it for a fair comparison! 

5 minutes ago, Me78569 said:

 

 

This sounds dumb but did you replace the orings?   I fought leaky lines for ALONG time to find that the orings got tore on install.

@Me78569 I didn't but they are also only 5k miles old on brand new tubes and I put a dab of oil on them all at I popped into place... I guess I will have to get a hold of scheid to see if they can get me new ones since factory ones don't seem to be the same as mine.. I have a cr head on mine with custom tubes and the o rings that came with my injectors didn't match

dimes to dollars that oring is torn.

I loaded up @Me78569 large injector stock turbo tune as a starting point. Pulled onto my favorite go fast back road and proceeded to grenade my turbo mid first pass taking it fairly easy. Now im looking for a new turbo...