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Old 05-02-2007, 11:24 AM   #1
shutupnshift04
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Default Complete open source tuning guide

I have been looking into tuning a lot latley and want to expand my knowledge and learn how to tune open source. Does anyone have a complete "how to" tuning guide or have any books or articles to recomend that can help me out with? thanks guys i tryed searching but didnt find much
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Old 05-02-2007, 01:18 PM   #2
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read posts by me.

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Old 05-02-2007, 01:43 PM   #3
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Quote:
Originally Posted by ride5000 View Post
read posts by me.

no joke, the search button is your friend.
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Old 05-02-2007, 01:47 PM   #4
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first buy a wideband O2 sensor that is compatible with
the tuning software you intend to use.

these range from $99 (VW) to $399 (Bosch) of course this
will depend on whicn sensor your software will accept.
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Old 05-02-2007, 01:49 PM   #5
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second, data log your car in the gear closest to 1:1.
for wrx's 4th gear & sti's 5th gear.

after data logging, examine the data.
post for replies and comments.
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Old 05-02-2007, 01:49 PM   #6
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third, list the mods you have done to your car.
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Old 05-02-2007, 02:02 PM   #7
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3rd gear for wrx, from what I've heard
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Old 05-03-2007, 12:30 AM   #8
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is cobb's general tuning guide available for public use? if so where is it at, i looked on their forums and couldn't find it, i don't have an access port, just looking for general tuning guide to fool around with.
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Old 05-03-2007, 04:13 AM   #9
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3rd gear for wrx, from what I've heard
4th is the ideal gear because it's nearly 1:1, but people use 3rd because 4th goes to 142mph
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Old 05-03-2007, 08:07 AM   #10
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I know of no complete tuning guide as yet. I have considered trying to do one, but I don't have enough experience with some aspects of tuning yet. Reading what Ride5000 has posted is a very good idea.

What I can tell you is that you need to be methodical. Make incremental changes in whatever part of the tune you are working on, then go log. Logging is of utmost importance. I keep a three ring binder of my logs with notes on each log. I highlight portions of the log that I want to change for the next version of the tune. I also annotate air temp, date and what version of the tune was used.
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Old 05-03-2007, 09:44 AM   #11
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Quote:
Originally Posted by carramrod View Post
is cobb's general tuning guide available for public use? if so where is it at, i looked on their forums and couldn't find it, i don't have an access port, just looking for general tuning guide to fool around with.
PM me your email address and I'll send it to you.
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Old 05-03-2007, 10:05 AM   #12
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some good tips from the utec user's guide:

Quote:
TIPS
1. UNDERSTAND WHAT YOU ARE DOING.
2. UNDERSTAND WHAT YOU ARE CHANGING.
3. UNDERSTAND WHY YOU ARE CHANGING IT.
4. TUNE IN SMALL STEPS, CHANGING ONE PARAMETER AT A TIME.
5. APPLY INCREASING LOADS GRADUALLY.
6. START ON THE RICH SIDE AND WITH CONSERVATIVE TIMING AND BOOST.
7. LEAN MIXTURES AND DETONATION CAN BE FATAL.
8. USE GOOD TUNING TOOLS SUCH AS BOOST GAUGE, AFR METER, ETC.
9. NEVER TUNE ALONE, ESPECIALLY WHILE ROAD TESTING. BE RESPONSIBLE ON THE ROAD.
10. ALWAYS HAVE A WORKING MAP IN ALL MAP SPOTS; THIS PREVENTS ANY DANGER OF YOU SWITCHING TO AN INVALID MAP ON THE FLY CAUSING DAMAGE TO YOUR CAR.
11. IF THE CAR DOESNíT RUN WELL. DONíT TRY TO DRIVE THROUGH THE PROBLEM TO CLEAR THE ENGINE OUT.
12. ALWAYS QUESTION ADVICE FROM THE INTERNET, MAGAZINES, BOOKS, NEIGHBOURS, SPECTATORS, ETC.
13. READ THE MANUAL.
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Old 05-03-2007, 10:50 AM   #13
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rent some dyno time..
tuning on the road can be a safety hazard.
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Old 05-03-2007, 11:33 AM   #14
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I agree jax, but I like to get my boost tuned and my fuel and timing in the ballpark before I go to the dyno then I play with it a little to get my final tune. I usually don't touch my boost tune on the dyno. I'll only change my fuel and timing. Dyno time is expensive.
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Old 05-03-2007, 05:12 PM   #15
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This one's for an open source standalone called megasquirt, but the ideas are all the same- go to megamanual dot com and see the tuning section. (I don't have 8 posts or I'd link it)
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Old 05-03-2007, 05:14 PM   #16
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Get the book " How to tune and Modify Engine Management Systems" by Jeff Hartman for starters.

Jay-R
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Old 05-03-2007, 05:22 PM   #17
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Have you read this book? If so, what is your opinion on it? Is there anything it does not cover very well?

Thanks,
Tim
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Old 05-03-2007, 05:26 PM   #18
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http://freon.shackspace.com/car/ecu&...ing/books.html

No one book covers it all. These three are the ones I would recommend most. I've read all three cover to cover at least twice.
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Old 05-03-2007, 05:30 PM   #19
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I spent alot of time in Japan learning, this book is one I stumbled across and I have recommended it to anyone who doesnt understand the Whats and Whys of ecu tuning.

At a quick glance it seemed like a good starting point.

Jay-R

Quote:
Originally Posted by WRX2ning View Post
Have you read this book? If so, what is your opinion on it? Is there anything it does not cover very well?

Thanks,
Tim
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Old 05-10-2007, 06:16 PM   #20
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Quote:
Originally Posted by dibblejr View Post
Get the book " How to tune and Modify Engine Management Systems" by Jeff Hartman for starters.

Jay-R
I just purchased this book from amazon.com. Hopefully it has good information. It has good reviews.
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