LTFT's still great with new longtubes addition

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Nov 10, 2009 | 08:05 PM

#11

KLUG'S SS

FormerVendor

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From: BERRIEN CENTER,MICHIGAN

Quote:

Originally Posted by BlackGMC

Ya, it helps and makes sense... I am aware of the fueling calcs for the VE table... So once the MAF table is tuned for the particular hardware attached to it, basically it is good until you make more intake path changes? Correct?

Now the VE table, since it does not directly read airflow, it uses calculations to generate airmass, it should be retuned?

Yes sir! I knew that you were educated on the calculations that go into determining fueling in speed density that's why I didnt go any further on that subject. It's pretty amazing the capabilities and accuracy of the MAF sensor and how flexible it is for weather and load changes.

Nov 14, 2009 | 08:08 AM

#12

rel3rd

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From: Baltimore, MD.

Quote:

Originally Posted by rel3rd

Just to update...

I took the advice and decided to do some VE tuning (first), and after only 2 logs and reflashes, STFT's are right back at 2-3% or less.

Heading back out to tweak the MAF, but I think 1 or 2 more logs and flashes will get the MAF right back in line as well...or at least I am hoping....

After upgrading from the old serial version of HPTuners, to the MPVI Pro, I finally got to do some extensive standalone datalogging and love not having to lug the laptop on every drive anymore.

Oddly, it took me more tweaking to the MAF than it did to the VE?
It does feel like it runs much better than without the VE/MAF tweaking though.

In retrospect, it is stupid to NOT re-tune after changes...especially when you already have all the tools and time to do so.