For all the SD-VE-MAF doubters out there...
Originally Posted by bmfcamaro
mine looks pretty close. the weather is always changing out here too. i dont see why people are afraid of the SD tune.
Haven't touched my tune in 2 months now and still holding strong... Today we hit the upper 80s in H-Town... I wonder what 90s will bring... 
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Joined: Mar 2004
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From: Dallas Texas
Originally Posted by txhorns281
Oh, well, I'm in full MAF, Closed Loop mode, but the point of me posting this was for all those who said that VE tuning is a waste and unproductive and bleh bleh bleh... Haven't touched my tune in 2 months now and still holding strong... Today we hit the upper 80s in H-Town... I wonder what 90s will bring...
Haven't touched my tune in 2 months now and still holding strong... Today we hit the upper 80s in H-Town... I wonder what 90s will bring... And Houston has some serios Humidity (I can't stand Houston weather). Nice work, do me a favor when it hits 90-100 repost the results then. But i'm sure you'll end up changing it some before then so I guess it wouldn't be 100% valid results. None the less Very Nice!
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Originally Posted by God Forgives I Dont
And Houston has some serios Humidity (I can't stand Houston weather). Nice work, do me a favor when it hits 90-100 repost the results then. But i'm sure you'll end up changing it some before then so I guess it wouldn't be 100% valid results. None the less Very Nice!
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I only fear the SD tune with a hotcam. It makes the dynamic airflow so jumpy it causes off-idle takeoff issues. My bad. I should have gone straight for the ASA cam and really made it worth my while...of course if I want to replace just the cam it would not be as bad as changing out all the valve springs...hmmm...
Originally Posted by Another_User
I only fear the SD tune with a hotcam. It makes the dynamic airflow so jumpy it causes off-idle takeoff issues. My bad. I should have gone straight for the ASA cam and really made it worth my while...of course if I want to replace just the cam it would not be as bad as changing out all the valve springs...hmmm...
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Originally Posted by txhorns281
any cam really will make trash of SD airmass calcs i think i've decided... lol I think with greater variant pressures and such that it's super picky and that's why trims may bounce around. You need to change your avatar now!
Has anyone yet played with the idea of a pulse
damper for the MAP sensor, to keep manifold
pulsation from kicking it around? Be interesting
to put a 'scope to the MAP sensor output and
see just how badly the value is jumping (to be
caught at various points by PCM sampling).
damper for the MAP sensor, to keep manifold
pulsation from kicking it around? Be interesting
to put a 'scope to the MAP sensor output and
see just how badly the value is jumping (to be
caught at various points by PCM sampling).
Originally Posted by SmokingWS6
BTW, you only got up to 3600 rpm going to the grocery store? your not trying
The MAF takes over at 4k, right? So to show us how your MAF table is doing, we need to see some redline runs.
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Originally Posted by jimmyblue
Has anyone yet played with the idea of a pulse
damper for the MAP sensor, to keep manifold
pulsation from kicking it around? Be interesting
to put a 'scope to the MAP sensor output and
see just how badly the value is jumping (to be
caught at various points by PCM sampling).
damper for the MAP sensor, to keep manifold
pulsation from kicking it around? Be interesting
to put a 'scope to the MAP sensor output and
see just how badly the value is jumping (to be
caught at various points by PCM sampling).
Originally Posted by Scooter70
The MAF takes over at 4k, right? So to show us how your MAF table is doing, we need to see some redline runs.
Over 4K I won't get any trimming anyway cuz i'll most likely be in PE mode but yes in higher RPMS it's ALL MAF. I guess one of these days I could crawl back under my car and get the wideband back in and check a WOT run... Damn you...
Launching!
Joined: Mar 2004
Posts: 233
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From: Dallas Texas
So TxHorns281 what method did you end up using to calibrate your MAF table? Did you make use of any of the MAF calculating spread sheets out there or did you do it by hand / educated guessing?
So if your results hold up, then that means all we have to do is get it real close on VE then all in one day finalize the VE and calibrate the MAF and sense the MAF is always primary (most of the time) the tune should not really need any further adjustments until we modify something in the air track that would require recalibration of the MAF?
So if your results hold up, then that means all we have to do is get it real close on VE then all in one day finalize the VE and calibrate the MAF and sense the MAF is always primary (most of the time) the tune should not really need any further adjustments until we modify something in the air track that would require recalibration of the MAF?