 Tuning EMS, Fuel and Ignition |
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| McMark |
 Oct 7 2004, 12:23 PM
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#1
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914 Freak!  Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None  |
I'm installing the beta KitCarlson FI and I'm turning my attention to tuning. I have access to a wide band O2 sensor setup for tuning in the FI part of the setup, but I'm not exactly sure how to optimize the ignition. My initial assumption is to install an EGT gauge. I would think this coupled with knowing the AFR would clue me into the ignition. There are so many factors I can modify that I'm having trouble keeping it all straight. Help me figure out what I need to do to get it well tuned. (IMG:style_emoticons/default/pray.gif)
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| Jake Raby |
Oct 7 2004, 12:43 PM
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#2
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Mark,
The LM1 is awesome for this.. Also I would recommend a EGT gauge as well to find the best tuning much fatser. with AFR and EGT you can dial in much faster than with CHT. With Dave's system don't be afriad to run near 14;1. I have 14:1 in the 912 and the heads run cooler than the engine did with the same advance curve and total timing and carbs did at 12.5:1 My head temps dropped from 325 all the time to 275 all the time and just 300 in fifth crossing a 7% grade! Withcarbs the same 7% grade peaked head temps at 375!!! 4,400 miles on my test system and absolutely NO issues yet! |
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Posts in this topic
McMark Tuning EMS Oct 7 2004, 12:23 PM
Mueller Jake, speaking of advance curves....got one for st... Oct 7 2004, 12:47 PM lapuwali I would start with a curve taken from the Mallory ... Oct 7 2004, 12:52 PM McMark Am I going to find a lot of tuning is necessary fo... Oct 7 2004, 12:52 PM McMark <... Oct 7 2004, 12:58 PM Jeff Bowlsby Thanks for the update Mark, I hope the install/tun... Oct 7 2004, 01:01 PM McMark I want to make sure it fits in and everything runs... Oct 7 2004, 01:06 PM Mueller thanks for the info James on the curves.....oh yea... Oct 7 2004, 01:44 PM Mark Henry Mark, just make a steady progresion from around 10... Oct 7 2004, 02:14 PM Jake Raby Mueller,
The stock advance curve is wasted as soon... Oct 7 2004, 02:18 PM Mueller I think Daves system is going to be a god-send for... Oct 7 2004, 02:23 PM lapuwali Mark (markd), I was thinking you where the one wit... Oct 7 2004, 03:09 PM Mueller James....can I pick up the dizzy tommorow? I might... Oct 7 2004, 05:59 PM Mark Henry <... Oct 7 2004, 06:03 PM lapuwali Mike, sure thing. You've got my number. I... Oct 7 2004, 06:47 PM DNHunt Markd
I'm gonna be facing this in a month or ... Oct 8 2004, 07:45 AM Jake Raby Dave,
Your timing looks spot on to me! I can g... Oct 8 2004, 08:21 AM TimT QUOTE
DNHunt Jake
I'm starting with the stock plenum. The ... Oct 8 2004, 10:50 AM
Jake Raby Dave, that stock plenum is very tiny for your engi... Oct 8 2004, 12:06 PM |
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