 Lotta fun with Megasquirt, Autotune, tunes while you drive |
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| DNHunt |
 Jan 14 2006, 08:24 AM
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914 Wizard? No way. I got too much to learn.  Group: Members Posts: 4,099 Joined: 21-April 03 From: Gig Harbor, WA Member No.: 598  |
I downloaded a newer version of Megasquirt with autotune. It uses a wideband O2 meter to adjust the air fuel mixture to a target while you drive. The targets vary according to RPM and manifold vacuum. I have a high of 14 at cruise and a low of 12.6 at WOT. Megasquit keeps adjusting until the amount of fuel gives the desired voltage from the O2 meter. It speeds up tuning a ton. (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif)
It's cool to see it changing without any key strokes on the computer. There are a couple things to consider (there always are). Tuning is only as good as the O2 meter and the air fuel mixture is just a number pulled out of the air. It will not tune the ignition side of the ECU. So, when I get everything sorted out and the engine well broken in it still goes on a dyno. Dave |
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Posts in this topic
DNHunt Lotta fun with Megasquirt Jan 14 2006, 08:24 AM
nsyr Sounds great. i have ms2 v3 that i will be using i... Jan 14 2006, 09:06 AM Tom Perso Hey Dave,
Nice to hear that - I upgraded the firm... Jan 14 2006, 10:01 AM DNHunt Andrew
Play with it on the stim first to see how ... Jan 14 2006, 10:25 AM bd1308 so what if you dont have any data for the high RPM... Jan 14 2006, 10:33 AM DNHunt Britt
Autotune will tune it BUT, I quess I'm ... Jan 14 2006, 10:56 AM Hydra I've just received my MSI v3, i'm right in... Jan 14 2006, 11:44 AM lapuwali I'd use something with less teeth than 36-1. ... Jan 14 2006, 01:51 PM DNHunt The MS 1 8-bit processor is full to the gills. The... Jan 14 2006, 07:09 PM airsix Jan 14 2006, 08:02 PM fiid I'm still using MSTweak for my tuning. From w... Jan 14 2006, 08:30 PM yarin Jan 14 2006, 11:36 PM lapuwali Actually, you probably don't want to use MSII ... Jan 15 2006, 12:59 AM Tom Perso I'm still up in the air with my ignition trigg... Jan 15 2006, 06:49 AM DNHunt The system I'm using is really working well, b... Jan 15 2006, 07:41 AM stock93 Dave,
Thanks for the post. I always like to hear a... Jan 15 2006, 09:44 AM crash914 I am still waiting for my MS2 chip....I guess I co... Jan 15 2006, 03:56 PM Rocky Dave, heard and saw you buzzin Hwy 16 yesterday an... Jan 15 2006, 08:04 PM Gary Some pretty cool stuff going on over in the megasq... Jan 15 2006, 09:53 PM DNHunt Hey Rocky good to hear from you. I've been ter... Jan 16 2006, 08:32 AM yarin Wow.. those guys are certainly cranking out some a... Jan 16 2006, 08:42 AM Hydra this topic is getting more interesting by the minu... Jan 16 2006, 09:00 AM DNHunt Yarin
I wish I could help you but, I'm runnin... Jan 16 2006, 09:09 AM yarin Thanks for the response Dave. I posted my question... Jan 16 2006, 03:09 PM yarin I learned a hell of a lot from this post regarding... Jan 16 2006, 03:39 PM
Rocky Yea Dave, we do need to get together. I work way ... Jan 16 2006, 09:42 PM  |
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