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Best lt1 cold air period.

Old 01-06-2019, 03:40 AM
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Re: Best lt1 cold air period.

Also, you talking about the Chris1313 intake as the "Corvette" intake?

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Old 01-07-2019, 06:34 PM
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Re: Best lt1 cold air period.

Where does that maf sit?
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Old 01-08-2019, 01:13 AM
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Re: Best lt1 cold air period.

Speed density /\/\ doesnt use a maf
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Old 01-08-2019, 12:09 PM
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Re: Best lt1 cold air period.

Keep in mind there's nothing to prevent you from adding an MAF sensor to a setup like the above. I run speed-density, with a filler piece where the MAF would normally be located in the WS6 intake setup.



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Old 01-08-2019, 09:25 PM
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Re: Best lt1 cold air period.

Any benifits of running both? I remember my 93 z ran just fine without a maf and its less restrictive...
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Old 01-08-2019, 11:50 PM
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Re: Best lt1 cold air period.

MAF is fine for most normally aspirated setups. I wouldn’t be concerned about the MAF sensor being restrictive. The big benefit of the MAF sensor is that it fully accounts for improvements to engine “breathing”. Improve the air flow by running a CAI or a killer exhaust, and the MAF sensor directly measures the new air flow. No programming required.

Set up correctly, speed-density can accurately CALCULATE the mass air flow, as opposed to directly MEASURING it. It requires accurate RPM, manifold absolute pressure, and inlet air (absolute) temperature input. Volumetric air flow is calculated using displacement x RPM/2 x volumetric efficiency (VE). Volumetric flow is converted to mass flow by using MAP and IAT in the ideal gas law to calculate the density of the air. Volume x density = mass (use of consistent units obviously required). The problem in all that is effectively establishing the volumetric efficiency.

The manufacturer uses dyno testing the generate the VE tables. As long as your engine is stock, good to go. But whenever you make a change that affects VE, you need to update the VE tables in the program. That is the tuning problem that 1993 LT1 owners face. There is software called VEMaster that help arrive at the correct values.

Add a power adder, and it gets much more complex. MAF can still work well forced induction (as long as you don’t exceed the flow limits of the sensor). Speed-density works well too, although it may involve using a 2-bar or 3-bar MAP sensor (or other workarounds). Throw nitrous into the equation and it gets messier. Wet vs. dry, in front of or after the MAF, cause new issues.
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Old 01-10-2019, 11:19 PM
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Re: Best lt1 cold air period.

Got it
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