SD on a N/A 5.3L?

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Nov 11, 2007 | 10:36 AM

#11

03sierraslt

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From: Western PA

Personally I would do like 12.6aft at WO for NA, as for Speed Density with your cam it may idle smoother and throttle response should be a tad better.

Nov 12, 2007 | 10:16 AM

#12

Compressor Surge

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From: Mackinaw, IL

I'm running an OL-SD tune on my N/A 5.3 and love it!

I can't say how much different it is than a CL-MAF tune, because I tuned it this way from the start.

Nov 12, 2007 | 03:22 PM

#13

zippy

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From: Las Vegas, NV

Quote:

Originally Posted by dc_justin

Speed Density does not mean that you're ignoring the oxygen related sensors, it is simply that it uses manifold pressure and RPM to define engine load and not the factory mass air meter. Everything else can be configured just the same.

One of the cons of this setup for 1TrueSS is if this is not done with a custom operating system, then you'll lose the ability to have dual spark tables (High and low octane). If you're overtimed or have a bad tank of gas, you're losing this safety instrument.

I agree, it sounds like someone is confused between speed density and speed density open loop. Both work great if you have alot of time to tune your truck.

Nov 12, 2007 | 08:25 PM

#14

regency

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From: Alexandria, LA

not confused, just was never told about the open loop style!!!!! and have never read anything about it. i just dont like the point of it i mean they went to a MAF and O2 for a reason right?????