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Author Topic: Questions about tuning...  (Read 450 times)

Offline Ritchie Hui

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Questions about tuning...
« on: December 19, 2004, 11:03:50 pm »
How abouts do you make a base fuel map?

I mean, if you had to make a fuel map from scratch, how the hell would u go about it without blowing your motor...  

Anyone have experience with a tec3 standalone?
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Offline Martin Raska

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Questions about tuning...
« Reply #1 on: December 19, 2004, 11:59:30 pm »
For starters, you would figure out how long your injectors of a given size need to be open for based on your desired air fuel ratio during each event....  And there is a lot more after that.

This is a topic not easily explained in a post.  Ignition timing I would argue is the biggest role.  You probably want to consult a general engine fundementals book on the subject.

How I try and make a base map is look at what the stock ecu does, and then how my setup differs, and adjust accordingly.
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Offline Ritchie Hui

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Questions about tuning...
« Reply #2 on: December 20, 2004, 09:24:15 am »
well the tec3 software takes those parameters in and generates a base fuel map with ignition and everything based on how you installed the crank trigger...

I'm assuming i got that right cause the engine cranks over... but i still gotta fix the cold starting enrichments...  this is sooo not worth it on a stock 420A...

*update*
So I took it our for a lil drive...  mmm, 2300rpm @ 30% throttle (54kpa) and its 16.4:1 afr... shiiit :P
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Offline Artem Goloubov

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Questions about tuning...
« Reply #3 on: December 20, 2004, 10:53:56 am »
Did I misunderstood

Or you are running a Tec3 on 420A? :shock:
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Graeme Shaw

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Questions about tuning...
« Reply #4 on: December 20, 2004, 05:10:56 pm »
Quote from: "Artem Goloubov"
Did I misunderstood

Or you are running a Tec3 on 420A? :shock:


Yep.  But it's far from stock.
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Offline Ritchie Hui

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Questions about tuning...
« Reply #5 on: December 20, 2004, 11:06:17 pm »
Quote from: "Graeme Shaw"
Quote from: "Artem Goloubov"
Did I misunderstood

Or you are running a Tec3 on 420A? :shock:


Yep.  But it's far from stock.


Haha, no Artem is right... its 'stock' right now :)

just a temp fix for school...sux :(
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Offline Ritchie Hui

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Questions about tuning...
« Reply #6 on: December 24, 2004, 07:01:45 pm »
Got lowell to tune it for me today... hard working guy, even on xmas eve... Thanks lowell!
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