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Author Topic: Ignition Trim  (Read 2132 times)
oldford
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« on: January 28, 2009, 03:05:43 AM »
I am working on the setup for a Supercharged Viper and have 2 questions.

I want to use the Air Temp Ign Corr Table to retard the ignition at high temperatures.
Am I right in assuming a negative number will retard the ignition?

I also want to use the Coolant Retard Table to retard the ignition at high temperatures.
Because of it's name am I right in assuming a positive number will retard the ignition?
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HT
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BAMF
« Reply #1 on: January 29, 2009, 10:49:09 AM »
both tables respond the same way.

Positive number will Add timing, advance it.

Negative number will Remove timing, retarding it.
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oldford
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« Reply #2 on: January 29, 2009, 09:47:31 PM »
Thank you.
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buttslapper
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« Reply #3 on: February 02, 2009, 02:49:49 AM »
Quote from: oldford on January 29, 2009, 09:47:31 PM
Thank you.

Can I get a copy of your map? I pretty new at this and I too am building a TT 98 viper. I'd like to take a look at your map if possible. Would it be possible to send the map to johnfarrugia@primus.ca
« Last Edit: February 02, 2009, 03:01:32 AM by buttslapper » Logged
oldford
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« Reply #4 on: February 13, 2009, 12:37:40 AM »
Sorry buttslapper.
I do not give away maps that have cost me a lot of time and money to set up.
I am willing to answer questions.
Keep in mind that with turbo- or super-charged engines there can be large differences in the setup based upon what map-sensor is used, what injectors, what's the compression Ratio, which camshafts are used etc. etc.
Using a map without knowing if it's suitable can lead to blown engines and a lot of costs.
To setup a map for a turbo- or supercharged engine you will need an engine test bench.
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gtsbob
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« Reply #5 on: February 13, 2009, 04:08:12 AM »
Good idea oldford. I sent him an example of mine and never even got a thanks from him.
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Alpha
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« Reply #6 on: February 15, 2009, 05:48:14 PM »
Post back the results from the tune Smiley Good luck with it!

A million and one reasons why I do not send my cals out for free
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oldford
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« Reply #7 on: April 09, 2009, 06:25:46 AM »
Because the customer choose the injectors (too small) and camshaft the result is not quite what I hoped for.
Still it's enough to get a very fast car.

The results of the tune:
Torque 740lb/ft (1003Nm) at 4100 rpm.
Maximum 700 bhp.
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