 Lotta fun with Megasquirt, Autotune, tunes while you drive |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| DNHunt |
 Jan 14 2006, 08:24 AM
Post
#1
|
|
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 |
   |
 
|
  |
Replies
| DNHunt |
Jan 14 2006, 07:09 PM
Post
#2
|
|
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 |
The MS 1 8-bit processor is full to the gills. They are out of memory. I'm using MS 1 on a v2.2 board running MSextra 024s13 code just to buy time. I have the board and components for MSII and V3 in the garage, but it doesn't have the features I want yet so everything is gathering dust. CAN is on the way with a router board just like the Carerra GT.
I kept the dizzy on my rebuilt engine so i can run a second wheel; right now it just has pointer to TDC #1. Sequential injection and COP is on the way. Dave |
|
|
|
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 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 |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 9th May 2025 - 07:26 PM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.