1st Run on Datamaster LOTS of Knock Retard, Please Help!!

[TYZ06]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

Well it looks like I dont have a stock chip 00831 (ATR Pitbull in the Ty - but she seemed to run pretty good). After chasing down the Gremlins in the Ty we took the Sy for its first DM log run and it looked ok (what do you think)? There was KR throughout the run but really nothing more than 5 degrees untill we hit 87 mph and had 6.5 degrees. The Sy is mostly stock has 83k miles on it, rebuild motor and trans at 70k (nothing fancy), has a ART Pitbull Chip, Kenny Bell Boosta Pump set at 30, we have done mostly suspension and braking mods as well as some cosmetic stuff. I was really impressed with how the Boosta Pump performed over my Ty's 255 Warboro, perhaps the Sy has a 255 in the tank plus the KBBP (what do you think)?

Sy DM File:
http://www.mediafire.com/?2zyi8pdhauxsu76

 

[sytyguy]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

Send the 3 bar map with your Dad and I'll check it out too.

 

[bezerk]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

your intake temp is way to high!

 

[Static]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

Probably unrelated to the knock issue but voltage looks low on the Tys Chart. I picked up a whole volt on my truck when I did the voltage mod.

 

[bezerk]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

13.3V is not low

 

[johnboy89]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

That run in your Ty doesn't look that bad!!!! It can be difficult sometimes to get rid of the knock completely. Might want to wait and see what hood finds out with the map/chip. My bet is the map is fubar!!!

 

[TYZ06]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

Bezerk,

The intcls pump relay on the SY is "1" this means it is on right? With that being said the Sy is 172 degrees at the IA (is this to high) it does have the stock IC with the stock pump in the stock location I guess is it has been jumped to be on all the time?

The incls pump relay on the Ty is "0" this means it is off right? With that being said the Ty got as high as 167 degrees at the IA (is this to high) it does have the stock IC but the pump has been upgraded and has been mounted vertically.

I thought that the ATR Pitbull chip would turn the IC pump on all the time?

 

[bezerk]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

Bezerk,

The intcls pump relay on the SY is "1" this means it is on right? With that being said the Sy is 172 degrees at the IA (is this to high) it does have the stock IC with the stock pump in the stock location I guess is it has been jumped to be on all the time?

The incls pump relay on the Ty is "0" this means it is off right? With that being said the Ty got as high as 167 degrees at the IA (is this to high) it does have the stock IC but the pump has been upgraded and has been mounted vertically.

I thought that the ATR Pitbull chip would turn the IC pump on all the time?

i have no idea about what chips do what. but you just need to find the relay and ground it, so it's on all the time.
Problem with these A2W intercoolers is that air trapped inside the system is a PITA to get out.
maybe you could try to spray a bit of alky and see what is does to your knock? cool thing about alky is that u will see your IAT fall down under boost

 

[TYZ06]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

Update!

I installed a Accufab adjustable fuel pressure regulator yesterday to help solve the INJ DC issue I was having which was a 120. The stock regulator was a 37 psi at idle with no vac line and 46 psi at idle with vac line. I adjusted the pressure to 42 psi at idle with no vac line and it was 54 with vac line at idle. The end result was a much lower INJ DC (almost 30% reduction).

In addition I was pledge with high IA temps 160 to 170 at the end of my run. So I let the Ty run for about 20 minutes with both the IC and Rad cap off to see if any bubbles would escape as well as filled them both to the max. I also verified that IC pump was hard wired which it was. The end result was a much lower IA temp to 110 (almost a 50% reduction).

Lastly I was dead set on eliminating the KR issue by the adjustments made above. I am proud to say mission accomplished! There was virtually no KR (didn't exceed 3 degrees throughout the pull). So I decided to turn the Alky Control Kit back on to rid it once and for all. I had it set at 4 and I was almost there except at about 70 mph WOT which I saw a very small amount 3 degrees. I will do a few more pulls adjusting the Alky to get to 0 KR.

Thoughts, is there anything else I should attack right now?

 

[bezerk]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

sometimes it's hard to completly eliminate knock, since it also might be false knock getting picked up from someting else...(i have knock during shifts for example).
Also i see u dont have a wb02 sensor, and your o2 sensor is now being maxed out, and beyond of reach for it to read it.

i say u did a good job, and a Wbo2 is something to invest in.

 

[TYZ06]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

Bezerk,

How can you tell I am maxing out the 02 sensor? What do I need to purchase to do the WB02 conversion? Do I just remove the stock 02 sensor and install the WB02, do I need to purchase a module and plug it into the ECM? Will the ECM beable to process this info an make changes or will this just give me more info to tune with? At this point the only thing I am able to adjusting is base timing and fuel psi right? I guess I am going to need to geek out on how to tune the car properly I just don't know where to start?

 

[TYZ06]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

DM File:
http://www.mediafire.com/?ev8pd9wm2ow1c31

Question?

This is the DM Histogram file, is this really useful? Can DM really tell a rich or lean condition without a WB02 sensor? If i install a WB02 with this improve the accuracy in this screen?

 

[bezerk]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

not in that screen in code 58. code 59 i dont's know.
you're maxing out your stock 02 sensor since it's 0-1000Mv (L to R) and with alky you go above that.
you can buy a PLX that has a narrow band sensor simulator so you dont have to run 2 o2 sensors. your search button will be helpfull for more info.

 

[autoaddictions]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

nice write up TYZ06!! Well done

 

[wildphil]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

PLX are good wideband sensors. I have a PLX on one of my trucks. I just bought one of these PLX DM-6 multi gauges to install on the other one. It would be great to be able to use one gauge for multi functions if so desired. But for tuning you really need a wideband o2 sensor.

http://www.plxdevices.com/product_info.php?id=WDBDSMAFR_DM6

 

[0966Sy]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

I would also reccomend a electronic fuel pressure guage to monitior fuel pressure at max boost. You want to confirm you have the desired amount of fuel pressure at WOT per psi of boost. 1psi of fuel for every 1psi of boost. Starting at your base fuel pressure setting/ and 0hg, good job on bringing down the KR. Just beware there are chinese walboro fake's out there

 

[TYTILIDIE]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

I would also reccomend a electronic fuel pressure guage to monitior fuel pressure at max boost. You want to confirm you have the desired amount of fuel pressure at WOT per psi of boost. 1psi of fuel for every 1psi of boost. Starting at your base fuel pressure setting/ and 0hg, good job on bringing down the KR. Just beware there are chinese walboro fake's out there

X2, definitely worth the money. This way when you have issues you don't have to wonder if your fuel pump is working OK, you just need to look at the pillar.

 

[TYZ06]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

Thanks guys for the comments. I have installed a PLX DM-6 yesterday, what number should I be shooting for? At idle it is AFR 14.7 (perfect right) under WOT with the PitBull chip it was at AFR 10.5 (Very Rich) alky was set at 4 almost no KR max boost was 15lbs MAP 2 Bar.

I installed the Mike Hoods reburn chip, and the idle AFR changed to about 15 and idle and under WOT was AFR 12.7 alky was set to 4 and we were getting KR 8 and the max boost was 17lbs. Turned up the alky and then with the alky all the way up KR 6 to 5. The fuel pressure is at 40lbs (no vac).

I will post the DM files and graphs in a few hours, I want to do one more run. Does anyone have any comments?

Is there a way to get DM to see the WB02 I have the NB and WB hooked up as E14 and F14 pin as it was instructed on the SYTY (the gage is working fine, and DM says 14.7 all the time I guess this is PLX's constant reading to the ECM?)

Questions:

Will adjustments to the fuel pressure reg change the AFR on the PLX WB02?
If so how should I adjust it?
What is the target AFR and how do I get it, Ostrich 2.0 + TunerPro RT v5?
My base timing is at 0 should I try lowering it to kill some of the KR?
Suggestions on killing the KR (I had none at 15lbs and the Pitbull Chip), new fuel filter, new plugs, new wires, no false knock - trany lines covered and all the usaual suspects.

 

[wildphil]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

Since you now have a wide band o2. With the Ostrich 2.0 + TunerPro RT v5, ADL cable and if you have a notebook. You would have about all you need to start learning how to do your own tuning. You can set your AFR and timing were it needs to be.

If you don't want to learn how to do your own tuning. You could probably continue doing Data logs and maybe work out a deal with Hood. I think he still offers a tuning service. But you would need to contact him. Since I really don't know.

You need to leave your timing a zero. If the timing needs to be changed that needs to be done in your tune.
On your fuel pressure. 40 lbs is a little low. Set it at least 43. That is about the factory setting. You can set it higher. No need to go over 50 lbs. But once you set it leave it set. Jacking with it will mess with your tune.

So decide if you want to tackle learning how to tune or if you want to see if someone will tune from your data logs.
Another option would be a turbo tweek chip. I have no experience with these chips. But there are others on the forum that could give you info on these.

These are just my opinions and I am no expert by any means.

 

[TYZ06]

Re: 1st Run on Datamaster LOTS of Knock Retard, Please Help!!

Thanks for the info on the fuel pressure, this was probably my issue. I will set it to 43 and leave it alone. I have attached the two files from todays runs. The first one is the ATR Pitbull Chip which produced 15psi and almost no KR, the second is the Hood Chip with almost 21 psi and 7 KR. I wonder if this is right? Is it possible for the stock turbo to make 21 psi? Also I installed the DM-6 in the factory 02 bung should I weld in a new bung before the CAT? Will this improve my AFR readings, I was seeing 11's and 12's seems a little crazy with that much boost? I like the idea of running more boost but I would like to do it with no KR.

ATR Pitbull 15 psi

Hood Chip 21 psi

Here are the DM files, any thoughts?

http://www.mediafire.com/?2csfaekdamnw7k4
http://www.mediafire.com/?x4k8337skrfj2us