TDStuart Tuning Adventure

[K4fxd]

Log fuel source. That will tell you where it is pulling fuel info from.
Go ahead and log all the sources. Fuel, spark torque. Search source.

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[Pistol_91]

You need to Log Air load, Throttle Angle, Actual Lambda and the sources like K4 said. At the least
Is there anyway to view this tune file in HPT?

 

[tdstuart]

You need to Log Air load, Throttle Angle, Actual Lambda and the sources like K4 said. At the least
Is there anyway to view this tune file in HPT?

Can the rtd do a read that you can view? If so then yes

 

[Pistol_91]

Yeah I'd imagine that would do the trick

 

[tdstuart]

@K4fxd

Trying to increase the rpm limiter but I seem to be missing a parameter somewhere. Trying to set it to 7500 for testing.

Heres what I've tried so far:
Rev-Speed Limiter: Engine Speed Limiter (1st-4th gear), RPM Limit Fuel Cut, Temperature based rpm limit
Fuel: Decel Fuel Cut High Speed - Min RPM

Rpm is hitting a limit around 7,100.
Torque Source: Engine Speed Limit
Fuel Source: Injector Cut

Let me know if there is something obvious I am missing

Edit: It's not the soft rpm limit that factory has, it bounces off the rpm limiter now

 

[tdstuart]

Yeah I'd imagine that would do the trick

Ill see if I can

 

[K4fxd]

There are a bunch of RPM limiting factors. I do not know where they all are in PCMtec. I'll look

In HP tuners they are in the transmission tuning and in the speedo tabs, along with those in the engine area.

If you can't find them I'll try to help tomorrow. It's my bed time here.

 

[tdstuart]

Yeah I'd imagine that would do the trick

Looked it up and I dont think you can view it but here is the file

 

[tdstuart]

Got the rpm limiter working.
auF2951 - Transmission Maximum RPM Limit

Was causing causing the car to hit the rpm limiter. Ill upload the tune where you can see all the changes. I basically set all the rpm limiters to 8200 and the fuel cut (Basically a nice soft limiter that doesn't bounce the engine rpm (Atleast I assume someone correct if wrong) ) to 8050.

 

[tdstuart]

Here is the tune with the increased rpm limiter for those interested

 

[tdstuart]

Ill do a high rpm data log so we can see the fuel trims at higher rpm. Car feels pretty good. Will stock torque limiting kick in? I noticed the car isn't spinning the tires in 1st but feels fast. Will need to get a dragy 60-130 to test how its actually performing.

 

[markmurfie]

A PMAS fenderwell intake and these are the intake air temperatures you are seeing? It goes UP when you are opening the throttle and more airflow is created, WOW, thats not good for making NA power.
Hey! Now you will get to make a tune for all the intakes and find out which one you ACTUALLY like how it works.

 

[tdstuart]

A PMAS fenderwell intake and these are the intake air temperatures you are seeing? It goes UP when you are opening the throttle and more airflow is created, WOW, thats not good for making NA power.
Hey! Now you will get to make a tune for all the intakes and find out which one you ACTUALLY like how it works.

PMAS is the best one. Depending on which log and when I was doing this air temps were probably like 100*+ and car was probably heat soaked. Today its suppose to hit 107*+ but my car sits in the sun so the car itself will probably be like 115*+

After driving a bit so the car has constantly had fresh air to cool down I see iat of 3-6* above ambient usually.

Arizona is brutal in the summer. I was doing some logs an hour ago and car showed ambient temps of well over 90* at like 11:30pm. During the day the sun is really bad too so things in the sunlight get way hotter causing things to heat soak from the sun which makes you iat even hotter.

PMAS is by far better than my old JLT and I assume way better than stock air box although I havent ran a stock box in a while.

 

[tdstuart]

Did some logs and 60-130 testing.

My tune:
1st 60-130 (not logged): 12.13 seconds
2nd 60-130 (logged): 12.43 seconds

Lund tune:
1st 60-130 (logged): 11.83 seconds

Keep in mind air temps were about 90* with d/a around 4260 ft. Good thing I did a log compare tonight as the d/a is terrible and shows my tune isn't super far off.

I tried logging the Lund tune with pcmtec and pcmtec will pull a lot more paramters. HPTuners will only give me a few for some reason. I didn't set it up very well as I was rushing, so there is a lot of unneeded stuff, some things I didn't log that would be nice, and some of the pulling rates are terrible and I don't know how to adjust them haha. The good news is that its worth it for me to learn the pcmtech logging so I can get more data about how the Lund tune is working. Ill be diving into setting it up and probably fully switch from vcm scanner to the pcm tech logger. I think ill still get some logs with hptuners for those that don't have pcmtec as the hptuners software is free to view log files. They also let you export as .csv but doesn't look like live link gen2 will open it up without some work first, haven't played around with it at all but included them in the .zip

My tune was logged with hptuners.

*logs attached

 

[markmurfie]

Just use import in livelink instead of open to view the CSV.

Comparing OP cam timing R7 v LD they are exactly identical.

R7 vs LD OP cam timing.png

Modifying PCMtec's datalogger data viewing options seems limiting and I can see people not having everything they need to review their datalogs.

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