Anyone do their own tuning?

[TGGT]

Just wondering how many of us are doing our own tuning. I wouldn’t mind bouncing some stuff off of some fellow tuners. I’m definitely a novice, but I do quite a bit of reading and studying different files and data logs. I was fortunate enough to have someone provide me with a base file, but I’m quite sure I could build my own file from scratch if I had to.

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[Plimmer]

I tune my 2015 TT with HPTuners. Don’t know much about the 2018’s

 

[engineermike]

I have a 2018 Whipple and do my own tuning with hptuners. I have always longed for an “advanced tech” section where we could discuss some things more in-depth than “buy x parts and y tune and run 9’s”. I think it’s awesome these cars go so fast with so little, but it has contributed to lesser understanding of what’s going on in the engine and cal amongst your typical enthusiast.

 

[TGGT]

I tune my 2015 TT with HPTuners. Don’t know much about the 2018’s

As far as I can tell they are pretty similar. Obviously the fuel tab is more involved and the trans running is a bit different, but there are definitely more similarities than not

 

[TGGT]

I have a 2018 Whipple and do my own tuning with hptuners. I have always longed for an “andvanced tech” section where we could discuss some things more in-depth than “buy x parts and y tune and run 9’s”. I think it’s awesome these cars go so fast with so little, but it has contributed to lesser understanding of what’s going on in the engine and cal amongst your typical enthusiast.

That’s where I’m at as well. I need to know the what and why not just putting parts on it and paying someone else to make it run. I want to be able to say I built and tuned it. I’m regularly on the hp tuners forum and there is some good info there , but people are also pretty tight lipped over there.
I just recently made a bunch of changes to my injector data as the base file I had had the wrong data plugged in for a return fuel setup. The only thing I’m still not sure about is the pressure compensation feature. Right now I have it enabled and the car runs fine. Fuel trims look good and it’s targeting 8.1 lambda at wot like I want. I’m just curious what this setting actually does

 

[sloride]

I’ve tuned my 2016 Procharged and another buddies procharged 2012 Boss 302 with HpTuners. Have a Fiesta ST with a hybrid turbo upgrade that I’ve tuned with Cobb. I also enjoy the satisfaction of wrenching and tuning my own stuff.

 

[engineermike]

My experience with tuning these is that any one aspect of the calibration can be very time consuming to learn. So basically I’ve delved into high-level structure/block diagram, cam timing/ understanding how mapped points work, and spark timing. I’m working on part throttle shift scheduling now. Unfortunately I haven’t dealt with injector data yet.

 

[TGGT]

Right now I’m playing around with the torque management tables pertaining to timing reduction on the shifts. I’m hoping that by pulling some timing on the shifts I can prolong the life of the stock trans. I just loaded a new file and will probably go out and do some pulls / logging later on

 

[Bmaughan]

I would love to see an advanced tech section as well!!

 

[TGGT]

My experience with tuning these is that any one aspect of the calibration can be very time consuming to learn. So basically I’ve delved into high-level structure/block diagram, cam timing/ understanding how mapped points work, and spark timing. I’m working on part throttle shift scheduling now. Unfortunately I haven’t dealt with injector data yet.

I spent a lot of time and still am spending a lot of time looking at cam timing, mapped points config, and the distance tables. It was driving me crazy that no matter what I seemed to do my log would show no weight in the op table yet when I studied the in ex timing it matches up with the op table so I figured that even though the log doesn’t reflect it the pcm is using the op tables.

Ive gone back and forth on shift scheduling. I probably tried 10 plus different configurations and ultimately went back to the factory shift scheduling. I just changed the wot shift points

 

[sloride]

At least for my 16 OP in mapped configurations Is disabled. So weighted maps will never see OP. Cam timing does follow the OP tables. My weighted tables at WOT are usually mostly 21 and some in 14

 

[engineermike]

On the 2018+ I don’t believe the OP cam timing tables are used at all. The wot cam timing is specified by cam position vs rpm, not by commanding the OP mapped point. The spark timing, torque, and SD values are then extracted from mapped points that surround the commanded cam timing angles. In fact, my cal commands the exact same spark timing at >1.0 load for all mapped points that surround the wot cam timing values. That way, regardless of cam timing tweaks, I get the same spark timing. It’s not really “the right way” to set it up imo, but it works for the time being.

 

[TGGT]

I think even with op disabled. The pcm still follows the cam timing layed out in the op table by weighing in multiple mapped points. I’ve changed the angles in the op table and sure enough data logging confirms this.

 

[engineermike]

I’d be curious to see your OP cam timing vs the WOT cam timing schedule.

 

[TGGT]

I’d be curious to see your OP cam timing vs the WOT cam timing schedule.

Pm me your email. I’ll send you a copy of the file

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