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Type: Posts; User: BlueCorvette

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  1. Quick question on TunerPRO RT and MAF table scalars

    Hi, I am using TunerPRO RT, and tweaking my MAF tables for $1F bin, using a 1F.XDF, for a 85 870ecu L98.

    I am lean and am bumping up the air flow values in the MAF tables 1-6 to force richer...
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    I see %Change To Fuel/Air Ratio At WOT Vs. RPM ...

    I see %Change To Fuel/Air Ratio At WOT Vs. RPM and %Change to Fuel/Air Ratio At WOT Vs. Coolant Temp. tables. I like your idea about not changing the MAF tables for WOT AFR. I think I will...
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    I don't see a stoichiometric scalar. Is that...

    I don't see a stoichiometric scalar. Is that what I am looking for? Yes I heard that around 36 was good for TPI so your map makes sense. Thanks, I'll take a look at that bin. I think some of the...
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    Yes you are right, I missed the Coolant spark...

    Yes you are right, I missed the Coolant spark table. That would adjust spark uniformly across a RPM for a load range. Interesting that it will add 10 deg at the highest load in very cold weather. ...
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    You are thinking of the 165 / $32 tables. My 870...

    You are thinking of the 165 / $32 tables. My 870 / $1F just has Spark Advance vs Rpm vs Load, Power Enrichment Spark Vs. AFR (blank stock), Highway Mode Spark Advance Vs. Load, and Time Out Spark...
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    Yes I have the stock iron heads, and yes the...

    Yes I have the stock iron heads, and yes the stock cam is mild.I found a Spark Advance vs Rpm vs Load Table example in a forum for a 1985 C4 TPI like mine. The post said it would ping in over 80 deg...
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    Tuning 85 TPI - Need spark tuning advice

    Sorry but the msg editor is shoving everything into one block. Hi everyone, I have a 1985 C4 TPI L98 that I am tuning. 870 ECU, AEM wideband wired into a Moates APU1 for datalogging. The engine is...
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    I think I have it working. That 12v transmission...

    I think I have it working. That 12v transmission sw connector was a bad idea, not a good power source.

    I'm a novice at this, and I have never had a good o2 sensor to datalog, so I was completely...
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    Thanks, yes you are right about the wiring. The...

    Thanks, yes you are right about the wiring. The bosch came with this stupid no text pictogram for the wiring. I had both white wires powered, so it wasn't powering the heater.
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    I misunderstood the wiring, it has two heater, a...

    I misunderstood the wiring, it has two heater, a sensor, and a ground.

    I'm testing it out now. Oddly, my car did not report going into closed loop, like it had before. My data logging seemed to...
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    You are saying D6 is the ECU pin for O2? I...

    You are saying D6 is the ECU pin for O2?

    I ordered a Bosch 15730 o2 sensor, it's a 4-wire.

    I was going to splice the old 1 wire into that for the 0-1v line.

    The old sensor line goes...
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    Thanks. I was thinking that might be the case. ...

    Thanks. I was thinking that might be the case. Although I really don't understand how the exhaust could cool off so much, I would think the heat would be trapped in there.

    I see a Bosch 15733...
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    Question on O2 sensor placement

    Hi, I am tuning my 85 corvette with a APU1 and AEM 30-4110 wideband. I installed long tube headers and complete exhaust. It has very little back pressure. OEM is one O2 sensor, but I installed a...
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    Hello, first post on this forum

    Hi, everyone.

    I am just getting started with tuning. I have an 85 corvette that I rebuilt and am trying to tune. I understand the basics, but there seems to be a lot to this, so any advice is...
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