This is a great thread. It's fun working together on all this stuff.Originally Posted by hjtrbo
This is a great thread. It's fun working together on all this stuff.
You know what. 4th gen and using sae. Going to need to change that to 78ish I would think?
You guys are really switched on! I just wanted to say that I appreciate all of you working together on this to improve the community! From the agreements to the disagreements, explanations, tweaks here and there, "dumbing it down" etc. etc. I feel that there is so much knowledge, information and experience in this thread, that it will be a "go to" for years to come! Thanks to all who are involved! This is awesome info and great work!
Not sure. Whatever the throttle says at full pedal the back off a few percent.
It was my fault. After inputting the new filter into the scanner I guess I didn't save the new layout and then when I copied the filter and put it into the 4th gen layout this morning the new throttle settings weren't there and I didn't notice, so you can guess it from there. It is good to know though when SAE pids are used to change the settings for the lower readings on the 4th gens...
2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80
~Greg Huggins~
Remote Tuning Available at gh[email protected]
Mobile Tuning Available for North Georgia and WNC
Just want to remind you guys, there are three different TPS PID types - area, position and opening. Keep in mind that you can log TPS PID different from others. This can lead to filter working fine for one is not working for other.
You have to synchronize somehow what PIDs are you logging.
2011 Cadillac Escalade L94 w/LS3 valves and valve springs
^^^^ Yes, thank you for putting more clarity into what I was hinting at, but obviously not correctly or in full clarity
2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80
~Greg Huggins~
Remote Tuning Available at gh[email protected]
Mobile Tuning Available for North Georgia and WNC
I may be completely off, but if I'm understanding this correctly(likely not), the modified filter(great work Sirius) 'should' be the only one necessary when applied to the simultaneous method in Cringers post for :
https://forum.hptuners.com/showthrea...t=simultaneous
The modified filter leaves us with presumably good steady state data (for CL MAF/VVE and PE) all the way into PE?
Last edited by cpd004; 09-01-2023 at 02:16 PM.
Cringer's formulas have been reworked and cleaned up - the corrected ones are in the last couple of pages, but I can confirm the filters are working great. However the math equation for OL has something up with it - I haven't gone through it yet - most likely something that changed from me swapping from layout to layout cause it was working just fine. I've been having problems with the layouts just changing for some unknown reason on their own.
If you are using the filter on really big hp builds it struggles and requires multiple passes to show numbers for some reason even though I don't have an average function turned on. Other than that no problems.
I will say using the dynamic will very quickly show how much the airmass calcs were off. I've seen 30% lean on some fifth gen ZL's that should be making in the 900+ hp range.
2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80
~Greg Huggins~
Remote Tuning Available at gh[email protected]
Mobile Tuning Available for North Georgia and WNC
It only replaces the TPS filter, which has the 50090.156 terms. I asked Cringer the purpose of the other parts, but he hasn't gotten back with me on that. I'm not sure what function they perform.
The modified filter filters out transients during steady state except for when <95? So it would effectively replace the filters in the original thread including CL/PE, correct?
Yes.
I also confirmed my layout had gotten changed causing my ol one to not read. Now I need to figure out what changed on my 4th gen layout - it's taking about 4 minutes to open logs now - guess I'll just delete out the tables I don't use that much. All this started happening after adding in some new tables for torque modeling. Guess I may be bogging the computer too much and it's loosing some of it's save profiles - only thing I can think of.
2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80
~Greg Huggins~
Remote Tuning Available at gh[email protected]
Mobile Tuning Available for North Georgia and WNC
Thank you Greg, Sirius and Cringer. Hoping this thread continues.
Good luck on getting scanner working correctly.
All credit to Sirius and Cringer on this plus all of the patents and explanations on how it works. I only did some of the big build test for Sirius to do some filter reworking.
2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80
~Greg Huggins~
Remote Tuning Available at gh[email protected]
Mobile Tuning Available for North Georgia and WNC
If someone like you finds use with all this then that's credit enough
Can you please elaborate on how to go about synchronizing? Just to understand this, are you saying using all of them together somehow show the same data which is actual % open? There are many TPS PIDS to choose from. In my case, I don't see 50090.
Log all TPS PIDs and try to group them. You will get 2 or 3 groups with almost equal values. 3rd group (actually single PID) will be opening, but it can be absent.
With a slightly pressed pedal the lowest value will be area, next will be position and the highest will be opening.
Gen4 and Gen5 Dynamic Airflow uses Area as TPS in the patent
https://patents.google.com/patent/US20050060084A1/en
2011 Cadillac Escalade L94 w/LS3 valves and valve springs
Kind of a basis of understanding question. I have gen 3 with a blower added so wrong forum but seems applicable. Sirius mentioned a formula he was going to apply to his gen 3 SD so thought I’d look at this. If I am reading this correctly, that filter can be used to filter transients on say an afr error table correct? My plans shift from trying to tune the entire truck open loop, before tuning fuel trims back on, to trying to tune non boost situations with fuel trims and just boost with the wideband. If using the fuel trims, can this be effectively applied even to a stft+ltft graph to the same effect? Or is it even necessary? Given PE is also entered earlier due to boost I was going to try modifying the TPS portion to use the fuel trim codes as well.
I've know that on at least one Gen 3 I've tried there is no Volumetric Efficiency Airflow channel. If you can't use that then the MAP sensor alone will be a reasonable approximation. TPS filter not needed.
MAP_filter 2bar.pngCode:ABS([50030.91]-[50030.91.shift(-10)]) < ([50030.91]/[50030.91.shift(-10)])*0.1
Last edited by SiriusC1024; 09-15-2023 at 11:35 PM.
Will this work with a traditional VE table or is it VVE specific?
Reply With Quote