Puffwagon
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Posts posted by Puffwagon
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And it changed the speedo readout?
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What did you change?
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Type tyre size into the pcmtec search bar. I haven't changed it to see if it actually works but it seems like a good place to start.
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Have a read here for setting up the afr logging
There are a myriad of way to tune the fuel and slope tuning is near the bottom of the list and only part of how the fuel is adjusted. Once the injectors are dialed in, the only time you would change the slopes is when you change from 98 octane to e85.
The basic approach is to adjust the base fuel table. This will also change ignition timing too so be aware of how it is changed. You can also control the throttle percentage when the car goes from closed loop to open loop aka the base fuel table. There are other things to do but those will be the main things you are changing to get the fuel right.
The injectors have to be dialed in before you go changing other stuff or you will be chasing your tail.
Given that I've already directed you to info already on the forum, I suggest having a thorough read through the how to sections. You might find your answers before you ask the question 😉
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If the boost came down when you changed the desired boost, it'll be fine and for all intents and purposes you've done it right.
If it oscillates at part throttle or if it oscillates coming onto boost, you'll need to drop some duty out of the wastegate duty cycle table. The scale is 0 to 1, 0 is zero percent duty and 1 is 100% duty. Try lowering it 5% at a time or 0.05 less in the map.
You might find that it'll hit boost cut on a cold night and if that happens, once again lower the wg duty cycle table. I wouldn't raise the boost cut parameters at this stage.
I wouldn't worry about changing anything for the plenum as there is usually only a minor difference in volume.
The stock datalogging setup is pretty good. One thing I like to add to it is injector duty cycle. One thing you will want for datalogging is a wideband. You can use a dlp8 to insert wideband data into your log. I'm sure there is a writeup on the forum somewhere.
Get some knock ears too as it's very easy for a beginner tuner to make these engine knock. Apart from that they are a valuable tuning tool, especially for road tuning on 98 octane.
There's a few fairly simple things to get you started. There is more to tuning boost control but this should help a bit. As always there is a write-up for boost control on the forum that you should have a read of.
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4 minutes ago, dynotunz said:
i have the load opened up to suit were i am now i was just after some feed back on weather or not it would change alot of other things i might not know about if i changed the numbers
This is definitely a question for @Roland@pcmtec or another developer, as they can see the math in the code and which other tables are affected by a simple borderline knock timing change.
I know that a lambda change in the base fuel table can affect final timing, due to the spark lambda correction table. I don't know if anything else in the tune is affected by direct changes in the borderline knock table. Physically some things change such as afr, egt, cht etc and some of these physical factors can affect the tune in regard to temp related corrections, eg fuel related O2 temp, flange temp etc or timing related cht, iat temp etc.
The only thing I can think of right now is that if you put high numbers in the borderline knock table it will revert to the MBT timing table for that particular cell, in which case you would need to modify the MBT values to get a final timing change. I have seen this firsthand while tuning and while the timing updated as expected, the overall power (this was on the spool up) didn't change at all.
As far as rescaling goes, the pcm measures the load (within the map/boost sensor capabilities) regardless of the max load on the Y axis. Even when I run 4.0 load or so with the table showing a max of 2.6 load, the timing still reacts to changes to the bottom line of the borderline knock table. If you've updated your spark Y axis you will have more accurate timing control in the updated areas, rather than it following the bottom line or pegging the table.
Hopefully something useful there and looking forward to some more technical info and/or correction from the developers.
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Just rescaled a map for s&g. From 1.0 load I made it jump in 0.5 increments up to 4.5 load. After the rescale it actually removed several degrees of timing.
Of course you could go through and add it back in, but just rescaling from 2.0 to 4.5 load would make the car slower.
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47 minutes ago, Roland@pcmtec said:
If you are running 40psi and 20psi on the same tune, then I would definitely advise rescaling the spark tables to ensure you are getting max ignition timing at both load levels. Don't peg the tune at 2.0 load like some people do, as you'll be missing out on part throttle and part boost torque.
After testing this with E85 on the dyno, the timing is pretty much the same at 20psi as it is at 40psi. Obviously when you are knock limited this would change, but you can't efficiently go much higher than 2.0 load with 98 anyway.
Max power is about 20 degrees of timing but you only make a small gain after 18 degrees of timing so that's where I tend to leave it.
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42 minutes ago, Plumbs said:
Hi sounds great ! So if I have the Pawper pack ( enthusiast version ) is it still the same cost for to upgrade ( Eg wanting custom os for anitlag ?) .
that is , we are basically starting again and throwing out the enthusiast version? $1000 plus gst plus lic ? Regards Graham.
Unless there is another option in the works, you can upgrade from enthusiast to professional first by emailing support.
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Send an email to support and they'll get it sorted for you.
support@pcmtec.com
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9 hours ago, JMSMotorsport said:
How do I access the sub forum? Was never sent an invite link.
Go to the front page of the forum, scroll down to workshop discussion and you'll see a link called beta discussion.
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I can probably halfway answer this one.
For the same reason dtc logging/clearing has been disabled with PCMTec. PCMTec is primarily a tuning program and isn't a full system/module scanner.
FWIW the last time I checked (years ago now) hp tuners still fully logged a PCMTec flashed vehicle, but only a couple of parameters with the custom OS.
Maybe this has been updated by moving stuff to different memory addresses? I haven't checked lately.
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1 hour ago, Roland@pcmtec said:
Because you can reverse engineer the tune via datalogging.
This.
Helpful comment is helpful 🙃
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I have a late model 2006 that ate shit at less than 20psi.
Recently tuned an 07 territory to 18psi with no issues.
So yeah nah yeah nah.
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After looking at the old tune the other day, you can see it doesn't have stock injector data in it.
I didn't look further to see what else will be causing the trims to be out as you didn't mention it then.
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An ai aka auto tune could do it easily. Cylinder pressure vs this vs that etc etc until it's done.
You could even make it mobile for the home tuner, via the spark plug hole for cylinder reference.
For lower octane fuel you could just use a knock reference... That would be the professional version 😋
Old mate was being sarcastic in his earlier post about taking too long to tune and charging 5 bucks.
I can do a single fuel multi tune with no injector data in less than a day, so there's no need for ai tuning imo.
Haha not gonna say no to an auto tuning ai pcm tho lol.
If this idea gets used I expect at least 3 buckets of kfc and a 6 pack of beer my way.
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Having done a bunch of road running myself, I find the less visual distractions the better.
You need to watch a wideband, although after a few tries the fuel will be safe enough.
You might need to watch a boost gauge.
You need to watch the temp gauge.
Must importantly you need to watch the road. Rwd starts getting sketchy a little after 300rwkw and AWD starts getting sketchy after 550awkw or so, imo. Having to hold a car straight while flat out in 3rd/4th is hectic enough by itself, let alone watching gauges etc.
With knock detection I use the headphones primarily, then review the subsequent knock data from tuner nerd.
I've also done a bunch of dyno tuning and even then you need to watch the fuel and boost very closely when you start making big power.
With headphones you will hear the onset of knock well before it detonates severely, a light may not pick it up in time when you include your reaction time to the light.
Anyway just a few things to think about.
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I turn the knock detection off in the tune and plug my knock ears into the factory sensors.
I found that just unplugging the knock sensors will make the tune pull the max amount of timing it can, hence why turning it off.
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Ok I'll get straight to the point...What is the max load the pcm can register? I've seen it go up to 4.0 or so, but how well would the pcm handle running 60+psi of boost, with obviously much higher load values?
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29 minutes ago, boostedfalcon said:
hey guys experiencing an issue licencing a ba falcon its saying the .dat file is missing and still showing as unlicensed but has used credits. thanks or any help. first time pcm tec user
Send an email to support and they'll get you sorted. It'll be quicker than waiting for someone to log onto the forum and see your post.
support@pcmtec.com
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The computer needs a decent gpu/igpu solution or it'll run poorly or not at all.
I've used an older machine in the past, a Toshiba satellite l300, and it struggled with more than a dozen items being logged.
With my discussions from support, there was a feature added to lower the refresh rate or something else to help it run better.
I haven't tried using it lately and is only use it as a last resort. New laptops can be had for under $500 these days.
In regard to battery life, I bought a new battery for $20 from eBay and it lasted for ages.
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There hasn't been any mention of the turbo tmap being used.
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Yeah probably a good idea to hide it if it doesn't do anything.
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I changed auF0117.
If you want it to start good on E85 change auF0180 to 0.2 lambda up to about 50c then lean it out after there.
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FG NA tuning help
in Engine Tuning (AUS)
Posted
This is more of a how do I tune, rather than a what parameter should I adjust question.
Everything can be found by searching on the internet. You can also learn to tune with hp acadamy. However, I will tell you a few things to tune a na car.
You need a wideband and you need knock ears for road tuning...
Aim for around 13:1 afr at WOT and keep it in closed loop until about 2750rpm.
Try to get 30 or so degrees of timing at WOT, 34 is great. The engine and fuel type will dictate how much timing is required.
To work out how much timing you can get into it, start the WOT afr at 12:1 and gradually increase timing. When it starts to knock, pull the timing back a couple of degrees or 3 and start to lean it out. When it starts knocking again you have found a balance. Get the timing as high as you can without going too rich... on a knock limited engine...
12:1 is much too rich for an daily street na motor and is just a starting point for setting the timing. It might be happy at 12.5:1 and it might be happy at 13.5:1. The timing will tell you where the fuel is happy and vice versa, in a road tuning scenario, within reason.
Make sure you use 98 octane fuel for best results.
For better cruise economy there is an O2 bias offset table. Play with that so you cruise at 15.5:1.
That is a general approach to na tuning with some falcon specific stuff in there, some cars will want more or less timing and fuel, but that info should get you in the ball park.