So here is the fuel target table.. This is accually what the OEM ecu is looking for NOT what your tricking it into thinking?

So its not just a fancy box modding o2 signal. It IS modding the accual table inside?

 

No i was saying the guy i bought my stuff from gave me the Greddy Ultimare,PnP Harness,and pressure sensor is this all i need to take my car to a tuner or would you guys recommend anymore add-ons

 

It's not a fancy o2 mod box by any means! It's a full on engine management.

 

Mike,
Here is a datalog of a tC on an S1 with an APR unit. I chopped it up so you can see the spark curve.

Note the resonant frequency at 3100 rpms or so

 

Chop of an air flow datalog.

 

Further hitting home the point. This is a datalog off of an N/A tC that had I/H/E and BC S2 cams with our X1. This is one of the final datalogs of the unit before he went to the dyno. Notice the striking resemblance of the air load and MAF curve as to what came out on the mustang dyno? I kid you not...this unit is a tuners wet dream.

I tried to rescale the images to the same size to show it better.

 

So Mike, what do you think?

 

Looks super impressive. Only one way to find out though! =D


I Really like the datalogging. I love the ability to tune based off maf load, or volts. Does the logger show OEM knock ? Also does it give you control over OEM knock table?

Im liking what i have seen so far!

 

The unit reads off of the stock MAF in kpA and not voltage.

You can not modify the stock knock sensors thresholds.

You can not directly see knock, but if you look on the write up I wrote on page 15. You can see where timing should be flat, but it drops out, then comes back. That is knock being detected.

http://www.dezod.com/files/DezodAPRV2.pdf


The spark curve should be rather flat with a slight incline toward redline, much we depicted here:



This knock curve is damn near perfect with the exception of the resonant frequency....

 

I have a friend that purchased a maserati 3200GT (an older one) and now he wants to make a comparison with my little demon on the ring. I said "why not" I don't expect a win or anything but he's going to get it all on HD! I'm gonna see if I can't get a copy for DEZOD on the ring.

Anyway I'm going all back to the original kit to see if I can find out were my noise is coming from in that big dip. I'm really annoyed by it I'm guessing its my valvetrain, its pretty loud not like STI loud but it needs some adjusting I'm guessing. So I want to know where my 550's would drop off boost wise. I want to run my scramble at around 12psi and my regular boost levels at around 10psi. I want to know my thresholds before I start adding timing into the spark table. Oh, Paul whatever adjustments we made to the fuel (pumpshot, duration etc.) my trims are now like -10% ish sometimes -20ish. Should I up my injector size to compensate for this rather than in the injadj? I just don't want to take a step back on my fuel. Another odd thing is that my load% drops off the datalogs at 150. Is this the max for the APR? I still see the g/s on the maf so I'm not worried that its gauging the air correctly but their is so much I dont know about this unit.

Other than my petty questions this unit is the "sick". Yes I said is the "sick". I want to take time off work just to datalog and tune freely. I'm getting those butterflies in my stomach for the ring the APR makes the car feel all new again. You all remember the first time you slapped on the turbo and gave it the pedal. All worried that you might hear audible knock or something evil will happen to your engine. When I gave it a few more PSI last night for the first time the tires came undone on the autobahn in 4th. The chick next to me switched lanes away from me and gave me the "violated" look. I will have to admit I scared myself a bit getting loose like that. I never felt so reassured as I did then that the APR unit was my best choice for fuel and timing.

After yesterday I am pretty sure my existing clutch is gonna have to go! Maybe this weekend I'll drop the flywheel and clutch in. I'm a bit lazy so I will pass on the LSD install and leave it in the box for winter when there is no sun or ring.

I wish Don or Paul were here to help out. Maybe just maybe that could happen still, I hate waiting! Don and Paul know what I am talking about. So Paul any insight on the APR or more DEZOD manual would be welcomed. I still remember trying to figure out the install. Which end does that go on?

 

I would not be concerned with the resonant frequency as you may never find it at all mechanically. It could be from the casting of the head and/or block. That is the beauty behind it all.

The 550s dropping off in duty cycle is going to be seen on any datalog under the "injector1" tab. Just look at the field "X1.injectors.injportdcb1.Y". Look at your peak values there. OEMs call it quits above 85%.....

With respect to the threshold for the pump shot, it only effects transient throttle and not cruise at all. So, if your holding steady state then the "injadj" comes into play. If you see that -10 net out from the trims of say -3STFT and -7LTFT, then you need to change that "injadj" value from "1" to say "1,05" or so until you see a close to -5 or less net out of the trims.

On the other hand, what I did to fix your pump overshot only effects when you go to 35% or more throttle and are above 70kpA. That is where the pump shot was killing you. It was over-shooting, over-correcting, over-correcting and then one more time to level out. You do not want that to happen. This is basically the X1 fighting the accel enrichment. You want the accel enrichment to hit, dissipate then the X1 takes control as it's fizzling out, which my settings did.

Your experiment to do is to run part throttle at a steady throttle and change the "injadj" values in those 4 cells and watch the trims result. You will see how it will all come into line!

I would leave the injector size the same as at WOT, the "injadj" values where damn close. If you change the injector size again, it changes it all globally, which means you would have to re-do your entire "injadj" table.

On the datalogs, load seems to cap out at 150, however all you need to do is click on the cells you want to see and the value will appear on the image above of the log. It will read something like this....X1.Air.Load.Y% (49.15.169.48267). The third number is load, which in this case is 169.

If you can't view that part of the image of the map, you can shrink the overall thing down by doing the following....Hold "ctrl" and make a counter-clockwise half circle until it gets small enough for you to view. To zoom in, hold "alt" and drag your mouse around the area you want to blow up. You will see a dotted box appear and once you let got, it's zoomed into the area you want to see. To restore the image to default, simply right click anywhere on the image, hit reset>reset charts

 

Oh I see! You learn something new everyday! I calibrate for a living so all these things make sense to me, I should have been thinking excel! Those 550 injectors will also crap out at 85% or will they hold at 100%? I know the calibration sheet states they are tested at 100% but I hate riding on them that hard. Anyway I appreciate your help once again on this matter. I know I have already gotten my moneys worth! Probably a bit too much moneys worth, sorry about the Hassel.

I just wish I could get a block and head with a tune on this APR unit. I am tempted to swap out rods and pistons and "give her the gun" AF style! I always tell myself I should have gone V band from the go! Those reading this thread get the APR ask questions later its better than kicking yourself later wondering why you didn't just give up two or three weekends of Denny's or that dumb itunes song you'll only listen to once. Or that dumb girl you spent money on whos gonna be someone elses wife. Look at it this way, your car will put out any day of the week and you can turn her on anytime. Make the leap get the APR and get some.

My wife hates my car! I have to seperate them all the time so they don't fight. The kids hate her too, its like their step mom taking away their allowance.

 

No worries Dan! That's why I am here bud. This unit is 10 months of my hard time. :?

The injectors will run to 100%, but you do not want a static injector because that is a bad thing. Push her to say 90-95% and call it a day. Then run some 700s or 850s with our return system if you need more power...

Anyway, signing off for the night. Gonna eat some ribs I made, take my dog for a walk with my 5 month old daughter and chill until tomorrow. Good night all!

 

I have found that if I start the software first then plug in the unit I always get the program to respond. It use to freeze on me all the time until I tried it in the order I specified. I also purchased an i7 with graphics card laptop just for tuning and datalogging. obviously the laptop has nothing to do with it the software is kinda buggy but still this software is awesome.

I am out too! Weekend coming up I am excited to work on my car get an improved tune down.


later

 

Sounds good Dan. That is exactly how I do it. No issues at all.

Let me know if you need some more guidance.

 

Dan, check your plugs. That could have caused the misfires.

 

Cant wait to get my box from dezod patiently awaiting

 

Getting it together. I will need one more piece of data from you. What size is the MAF pipe?

 

2.75" its a ptuning kit

 

Thanks Mike.