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Meth Fuel Map---is this look correct?

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Old Jun 16, 2008, 01:44 PM
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What kind of WB are you using?
Old Jun 16, 2008, 01:55 PM
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Pay a professional the first time, review what has changed and reverse engineer.
Old Jun 16, 2008, 05:36 PM
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I use a`tech edge wideband.
Old Jun 16, 2008, 05:44 PM
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what size nozzle are you running? that fuel map looks kinda rich for a meth map.
Old Jun 16, 2008, 05:48 PM
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6XX can't remember exactly. Got it from Labonte Motorsports.
Old Jun 16, 2008, 05:55 PM
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Here is my current pump gas timing map.

Old Jun 16, 2008, 06:10 PM
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That is your fuel map and timing map with meth injection?

Are you sure the kit is actually spraying? Is your wideband correct?

The fuel and timing looks very very very conservative for meth.

Do you have upgraded injectors? If so, what brand, size and what do you have them scaled to?

You said you are running 28psi peak? That would put your around 0 to -1 timing according to your timing table.

I run more more peak boost timing than that with 27.5psi on straight 91 octane.

Last edited by razorlab; Jun 16, 2008 at 06:13 PM.
Old Jun 16, 2008, 06:16 PM
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the timing is the original pump gas 22 psi tune map.

Injectors are stock as far as I know. I do have a low IDC like 20% for some reason.
Old Jun 16, 2008, 06:24 PM
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idc seems very low.
Old Jun 16, 2008, 06:25 PM
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Originally Posted by razorlab
That is your fuel map and timing map with meth injection?

Are you sure the kit is actually spraying? Is your wideband correct?

The fuel and timing looks very very very conservative for meth.

Do you have upgraded injectors? If so, what brand, size and what do you have them scaled to?

You said you are running 28psi peak? That would put your around 0 to -1 timing according to your timing table.

I run more more peak boost timing than that with 27.5psi on straight 91 octane.

Your right on with the peak load coming in around 3500 rpm at 290 load. Sooooo how much timing would this thing take? If it is that retarded then it def way down on its power. which actually makes me happy. I like knowing there is power in it.

Thanks for all the replies.
Old Jun 16, 2008, 06:26 PM
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The IDC's there has to be something going on there. I highly doubt it is that low. It runs to good......IDK
Old Jun 16, 2008, 06:28 PM
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What is your IPW at 7k?

Are you 100% sure your wideband is reading correctly?
Old Jun 16, 2008, 06:44 PM
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I have no reason to think it is not working properly.

15.1 @ 7K so doing the math I am at 88% Cool
Old Jun 16, 2008, 06:48 PM
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post up a complete log 3rd gear from 2800-7200rpm. Include rpm - a/f and other variables in between.
Old Jun 16, 2008, 07:00 PM
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Code:
TPS	LOAD	RPM	BOOST	IDC
100	263	5500	-0.5	64.53
100	263	5625	-0.5	67.20
100	261	5750	-0.1	67.47
100	261	5843	25.5	68.56
100	260	5968	25.5	70.02
100	258	6093	25.3	70.19
100	255	6187	25.3	69.95
100	253	6281	25	71.02
100	250	6406	24.9	72.43
100	248	6500	24.5	73.49
100	244	6562	24.1	72.79
100	241	6656	23.9	72.42
100	237	6750	23.5	72.00
100	235	6843	23.6	72.99
100	235	6937	23.6	72.51
100	231	7031	23.4	72.00
100	230	7125	23.3	72.96
100	227	7187	23	72.06
100	223	7281	22.9	73.00
100	220	7343	22.8	73.63
100	218	7406	22.7	74.26
60	215	7468	22.2	73.29


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