Too High Psi - Procharged Edition? - Page 7

KingLT1 · 03-08-2023, 09:08 AM

Quote:

Originally Posted by cjperformance

Laynlo gave me a peek at his tune, which was really helpful for understanding how a few of the adjustments work. Particularly with the Engine Torque Coeff EQ Ratio table.

In an earlier post, Mike had said he was able to remove 15% of DI fuel from the PE table. There was still PE happening on the DI side in that tune. I'm wondering why PE couldn't be reduced more to further avoid pulling from the MAF?

In radz28's thread he did a good writeup in answer to a question I posted about where the fuel goes in the Reflex when it gets pulled from PE in the ECU.

Last fall I worked on a tune for a guy that had a Forged LT1 D1sc setup. It had meth injection and it was setup so PE targeted stoich(14.1) AFR and then used the meth to fuel the engine 18-19% rich. I imagine you can use the same methodology with Mikes PI setup that way you don't have to rape the MAF table and throw off the torque model.

But as I mentioned in PM, I don't think you want the fuel transition from DI to PI the same as a PD setup. You likely will need the PI to come in more linear with a Procharger.

I am glad to see Greg was generous enough to share his tune with you and Mike is also helping out.

cjperformance · 03-08-2023, 11:20 AM

Quote:

Originally Posted by KingLT1

Last fall I worked on a tune for a guy that had a Forged LT1 D1sc setup. It had meth injection and it was setup so PE targeted stoich(14.1) AFR and then used the meth to fuel the engine 18-19% rich. I imagine you can use the same methodology with Mikes PI setup that way you don't have to rape the MAF table and throw off the torque model.

But as I mentioned in PM, I don't think you want the fuel transition from DI to PI the same as a PD setup. You likely will need the PI to come in more linear with a Procharger.

I am glad to see Greg was generous enough to share his tune with you and Mike is also helping out.

Mike had recommended using 8000 hz as the start point, and there is some blending in the spreadsheet. Looks like it blends from the start point up to around maybe (start point + 1k to 1.5k hz) greater than the start point. So at 8000 start point, it would gradually blend in the PI from 8000 to around 9400 Hz.

toohighpsi · 03-09-2023, 12:51 AM

Quote:

Originally Posted by cjperformance

Only remaining question is what should PE be in the reflex? Should it be the actual PE I want to attain, or just some default generic value?

You'll want the PE that you are looking to attain, since you already put the PE removed from the E92 back into the MAF curve, the PE in the Reflex will be a close match.

Also (for future reference) the PE value in the REFLEX+ drives the lambda target (1/PE) for closed loop feedback, so just another reason you'll want this to be the lambda you're looking for.

KingLT1 · 03-09-2023, 09:49 AM

Is Chris's the updated unit with wideband support?

cjperformance · 03-09-2023, 11:53 AM

Quote:

Originally Posted by KingLT1

Is Chris's the updated unit with wideband support?

That would be interesting. I saw something mentioned on Motive's site saying "adaptive changes", but there isn't a whole lot of addl info...

If there's something I can get off the box, or something I can get out of the RT software to figure out a version number or something LMK.

laynlo15 · 03-09-2023, 04:39 PM

Quote:

Originally Posted by cjperformance

That would be interesting. I saw something mentioned on Motive's site saying "adaptive changes", but there isn't a whole lot of addl info...

If there's something I can get off the box, or something I can get out of the RT software to figure out a version number or something LMK.

If your talking about the closed loop I don't think its been released yet.

cjperformance · 03-09-2023, 06:50 PM

Got this guy, but won't be going on for a while.

laynlo15 · 03-09-2023, 10:25 PM

I got a few of those myself. Andrew does a great job at Griptech and can build about any size you want.

toohighpsi · 03-09-2023, 11:15 PM

Quote:

Originally Posted by KingLT1

Is Chris's the updated unit with wideband support?

I'll probably release that firmware next week, it will be available for all current Reflex+ users and will include the Wideband Feedback and Dry Nitrous fueling.

I've been running it for a while now, but just haven't had enough time to make a video of the software setup and operation - so that's on the top of my list now.

cjperformance · 03-10-2023, 06:47 AM

Quote:

Originally Posted by toohighpsi

I'll probably release that firmware next week, it will be available for all current Reflex+ users and will include the Wideband Feedback and Dry Nitrous fueling.

I've been running it for a while now, but just haven't had enough time to make a video of the software setup and operation - so that's on the top of my list now.

So were talking adaptive fueling here? If so, im excited!

*radz28* · 03-10-2023, 07:07 AM

WAH?!!! Mike's a bad influence...

laynlo15 · 03-10-2023, 07:11 AM

Quote:

Originally Posted by radz28

WAH?!!! Mike's a bad influence...

He is but he just can't help himself.

KingLT1 · 03-10-2023, 09:51 AM

Quote:

Originally Posted by cjperformance

So were talking adaptive fueling here? If so, im excited!

yes, wideband feedback to auto control PI fueling = game changer!

*Joshinator99* · 03-10-2023, 11:59 AM

Quote:

Originally Posted by KingLT1

yes, wideband feedback to auto control PI fueling = game changer!

Now we’re talking!

03-09-2023, 09:49 AM	#88
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 7,661	Is Chris's the updated unit with wideband support? __________________ 2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel

03-09-2023, 06:50 PM	#91
cjperformance Drives: 2017 Camaro SS 50th Anniversary Join Date: Apr 2021 Location: Missouri Posts: 950	Got this guy, but won't be going on for a while. Attached Images __________________ 2017 50th Anniversary Edition \| P1X Stage 2 DSX Aux Low Side \| LT4 high side \| Flex Fuel TooHighPsi Port Injection (installed & tuning) CircleD 3K Stall \| QA1 CF Driveshaft Forgestar F14 Drag 17x10 NT555R2 305/45/17 Rear Forgestar F14 18x8 NT555G2 235/50/18 Front 10.84@131 w/4.13" pulley ??.??@??? w/3.7" pulley (installed & tuning)

03-10-2023, 07:07 AM	#95
radz28 Petro-sexual Drives: Ultra-Grin Join Date: Oct 2006 Location: Crazy Coast Posts: 15,855 View My Garage	WAH?!!! Mike's a bad influence... __________________ '20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs

03-09-2023, 10:25 PM	#92
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,882	I got a few of those myself. Andrew does a great job at Griptech and can build about any size you want.

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