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#61 |
Join Date: Oct 2007
Location: lone pine and mammoth lakes ca.
Posts: 544
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tyler thankyou so much for the insightfull info . guess i will send my prom to corey after i remove the secondaries
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#62 | |
![]() Join Date: May 2005
Location: Nichols, FL
Posts: 615
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Tyler
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#63 | |
![]() Join Date: May 2005
Location: Nichols, FL
Posts: 615
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Quote Proportional gain is a method of controlling a signal of some sort generally idle speed control or EGR controller, etc; where a certain type of damping or control of a signal is required. It in it's self is not a calibration parameter but exerts control over a device. Generally the P part of a PID controller where I = integral and D = derivative. Any of these terms can be used in isolation but are generally used to fine control a feedback system of some kind. Look up PID controllers on the Internet for the full skinny! Should keep you amused for hours!! Unquote Tyler
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55 Polo White (Project) 61 Jewel Blue (Sold to buy above) 66 Nassau Blue 68 Torch Red 88 ZR1 Blue 90 ZR1 White |
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#64 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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If you are interested in learning about the PID controls, have a read of the attached paper. Don't be surprised if it takes a few run thrus' to grasp what they do. Actually making the changes to the cal will solidify for you how these controls help in fine tuning the behavior of the motor. This paper was written for a TBI system but the operating principles and results are very applicable even to an LT5.
Last edited by XfireZ51; 03-08-2024 at 02:06 PM. |
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#65 | |
Join Date: Aug 2005
Location: Fishers, IN
Posts: 809
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Picking this thread back up, using a question asked on the list...
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The bin I have is based on a '90 (AUAH) calibration. Surprisingly, the changes are fairly minimal, compared to what one would suspect for a race engine. The SA table has few changes, mainly at WOT. About 28d total advance. The VE tables are largely unchanged, except the high RPM table w/ SPT's open, no doubt where the car spent most of its lap. It is also clear that the race car had no Port throttles, O2 feedback, or knock feedback... not unlike the Snakeskinner calibration, in that regard. Just trying to keep this thread alive ... ![]() Todd |
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#66 |
![]() Join Date: Jan 2024
Location: Boston, MA
Posts: 170
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Just wanted to drop in and say this thread was still very informative some 16 years later.
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1987: Z51 Coupe, Z51, 4+3, Yellow / Graphite 1994: ZR-1 #150, Admiral Blue / Black 2015: Z06 Coupe, Z07, M7, Arctic White / Red |
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#67 |
Join Date: Aug 2005
Location: Fishers, IN
Posts: 809
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Todd ____________________________________ *** our email address has changed! info@pepmeierengines.com pepmeierengines.com Friend us on Facebook too: www.facebook.com/profile.php?id=100011443683384 Pepmeier Engine Development |
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#68 | |
![]() Join Date: Jan 2024
Location: Boston, MA
Posts: 170
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Tyler too? Man... I stepped away from this hobby for ~15 years and so much has changed. ![]()
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1987: Z51 Coupe, Z51, 4+3, Yellow / Graphite 1994: ZR-1 #150, Admiral Blue / Black 2015: Z06 Coupe, Z07, M7, Arctic White / Red |
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#69 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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Grumpy(aka Bruce Plecan) passed away quite a long time ago. We held a tuning symposium in his honor near his home in Ohio. He and RBob were the brains behind a great deal of the tuning knowledge we have today. Craig Moates still around we hope but out of the business. Mark Mansur for TPRT
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