oadamo
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| posted on 16/8/07 at 10:32 PM |
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megasquirt map audi 1.8t
hi iam lookin for a megasquirt map for a audi 1.8t engine ive posted on the megasquirt forum but its been 2 days and no answers. do you think a map
off a 2l zetec would get it running ok just to start me off and because i havent a cue how to write a map from scratch.
adam
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Fatboy Dave
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| posted on 16/8/07 at 10:56 PM |
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A 1.8 Zetec would help. I have a v3 map somewhere that would probably get you going as long as you know the offset of the VR sensor in relation to the
Zetec (i.e. it's the same number of degrees off TDC as the Ford).
Dave
Stop the planet, I want to get off
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martyn_16v
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| posted on 17/8/07 at 09:02 PM |
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Try www.clubgti.com, there were a couple of guys squirting 1.8T's there last time I looked.
A map from a non-turbo engine isn't really going to help you much, you'll end up chucking most of it away as it'll only go up to
100kPa which is probably half of your operating range, so you're not really saving yourself any work over making one from scratch to start with.
I'd also be wary of starting off with someone else's fuel tables anyway, the temptation to think 'it'll be close enough'
and give it a blat could be too much, at least if you're having to generate it as you go along it'll force you to take it slowly and
carefully.
It isn't as hard to flesh out a table as you'd first think. There are pretty big areas of the table that the engine will rarely (if ever)
work in, once you have a couple of values on the boundaries of these areas you can quickly fill in the blanks to make a smooth contour. The main area
to concentrate on is basically the diagonal from bottom-left (idle) to top-right, and of course all along the top  If you have a look at a few
tables from any engine you'll see that they all form a fairly similar shape, that'll give you an idea of where your values should be
heading as you start tuning up from idle.
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oadamo
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| posted on 19/8/07 at 10:43 PM |
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quote:
Originally posted by martyn_16v
Try www.clubgti.com, there were a couple of guys squirting 1.8T's there last time I looked.
A map from a non-turbo engine isn't really going to help you much, you'll end up chucking most of it away as it'll only go up to
100kPa which is probably half of your operating range, so you're not really saving yourself any work over making one from scratch to start with.
I'd also be wary of starting off with someone else's fuel tables anyway, the temptation to think 'it'll be close enough'
and give it a blat could be too much, at least if you're having to generate it as you go along it'll force you to take it slowly and
carefully.
It isn't as hard to flesh out a table as you'd first think. There are pretty big areas of the table that the engine will rarely (if ever)
work in, once you have a couple of values on the boundaries of these areas you can quickly fill in the blanks to make a smooth contour. The main area
to concentrate on is basically the diagonal from bottom-left (idle) to top-right, and of course all along the top If you have a look at a few
tables from any engine you'll see that they all form a fairly similar shape, that'll give you an idea of where your values should be
heading as you start tuning up from idle.
thanks for the link i was looking on audi forums i didnt think about them putting them in golfs. i was just thinking of useing the map as a base map
just to get it started then go from there. ive still gotta buy a wideband. ive been doing a load of reading so i might have a go or justs get in on
the rollers.
adam
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