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.

Per my other thread im looking at 7x.013 or 7x.014.

got ya.  

Depending on how much they cost from dap i may get two sets for some back to back testing. 

I wish I had a second set of injector bodies for this purpose.

I have a set that came out of a flood truck. A little rusty but they may be salvageable if your interested.

4 hours ago, Carbur8tr said:

I wish we could get someone on the dyno with 3 sets of injectors to see some numbers as well.  That would help gauge how much of a loss, if any, that we are seeing with the higher pop pressure. 

I actually have access to a Dyno near me 

18 hours ago, Silverdodge said:

I actually have access to a Dyno near me 

 

How much do they charge per hour?  For the kind of testing I would want to do we're talking about at least 3 separate, hopefully similar, days on the dyno with three different sets of injectors.  Gets pricey when you start looking at all that time. 

 

And I know it could all be done in one day but I hate working on the truck when it's hot and would prefer to do all pulls when the truck is at a similar state ie coolant/oil temp yada yada.  I have a mustang dyno up the road from me I might see if I can touch base with the shop to work a deal.  Either way I'm sure it won't be cheap, but I would be interested in getting solid data to back up the duration claim and loss of hp at higher pop.  If we could quantify that then we might be able to give better recommendations in the future for injector size vs hp vs smoke.   

 

@dieselautopower or @Me78569 would you be interested in getting numbers to reinforce some of this or do you think it would be more noise at this point?

I will never yell about more data.  If there is a "considerable" difference in power between stock bar and 350 bar on 7 x .012's then we should see it in logs I will be taking.   

 

We might be missing some amount of difference in power by not testing on a street, but from my point of view, if it isn't a big enough difference to see on the street then we dont need to worry.  

I agree on all points, and at 110 an hour it would get pricey to get a good bit of data.  I'm thinking we could compare 7x.012 @ 300 and 350 at minimum to see what differences we are dealing with. I wonder if Chris would rework my 7x.009s to .012s @300 or 305.  Hmmmm 

@Carbur8tr where are you located in Tx?

2 hours ago, dirty830 said:

@Carbur8tr where are you located in Tx?

 

San Antonio, why what's up?

@Carbur8tr My bud with the dyno is in the Houston area just wondering if you were closer than me. we could get some discount dyno time from him.

 

@kzimmer Injectors are boxed up and should go in the mail tomorrow. After closer inspection the bodies look good but the nozzles are a little nasty but we shall see if they are salvageable.

I would be interested if it's for the right price and within the next couple of weeks.  Problem I have with a lot of this is that I work too much so finding the time to work/play with the truck is limited. 

 

How much do you think he would charge?  Do you know what kind of dyno it is?

Its a dynomite dyno it is a load cell type I know for sure. Iv had my 12v on it in the past. I will get with him today and see what he can do. I also have a hard time making time but after Christmas my busy season will be over so ill have time to play.

27 minutes ago, dirty830 said:

 

@kzimmer Injectors are boxed up and should go in the mail tomorrow. After closer inspection the bodies look good but the nozzles are a little nasty but we shall see if they are salvageable.

 

Cool! Now I just need to find a second set of 7x.013's to set them up lol.

On 12/15/2017 at 3:32 PM, Me78569 said:

They have about 2k miles on them now from DAP . they are nearly new, I hope they are still popping at 330 bar

@jlbayes does DDP use sub stock pop pressures ?

 

No idea. After talking to Seth last week it seems to depend on end use. Like the ppump 24v stuff they pump up the pop to clean up nozzle haze. I do not have a line into DDP to ask them.

Typically we target 305BAR for 100HP and under, 310BAR for 150HP, and 315BAR for 250HP and up

10 hours ago, dieselautopower said:

Typically we target 305BAR for 100HP and under, 310BAR for 150HP, and 315BAR for 250HP and up

 

Thank you for making this information readily available. Too many people try to keep this stuff a secret. We can all benefit from a little transparency.

15 minutes ago, kzimmer said:

 

Thank you for making this information readily available. Too many people try to keep this stuff a secret. We can all benefit from a little transparency.

Lol! It's true! They act as if it's top secret and can't just be bought and tested by another shop!! 

10 hours ago, dieselautopower said:

Typically we target 305BAR for 100HP and under, 310BAR for 150HP, and 315BAR for 250HP and up

So you were already on the theory that some of us are trying too help to prove! Sweet

15 minutes ago, kzimmer said:

 

10 hours ago, dieselautopower said:

 

Edited December 19, 20177 yr by Dodgeih

16 hours ago, kzimmer said:

 

Thank you for making this information readily available. Too many people try to keep this stuff a secret. We can all benefit from a little transparency.

 

Others put out this information as well. We were certainly not the first. We have put out pop pressure on most of the injectors we sell, and now try to do it on all of them.  

 

16 hours ago, Dodgeih said:

Lol! It's true! They act as if it's top secret and can't just be bought and tested by another shop!! 

So you were already on the theory that some of us are trying too help to prove! Sweet

 

Others have been doing this for years.  It was not my idea, but on its face it makes sense.  We adopted it.