Today I tested the difference between SD and MAF mode both in open loop (Dyno inside)
Originally Posted by speedracer5532
Agree with HumpinSS on this. I think most tuners just half *** tune a car and he say it is close enough and call it a day. Then the owner has driveability issues. Running a SD tune things need to be dialed in much better, so people could think a SD tune is better than running a maf. The maf can take a half done ve table and get things close but when you take a dialed in SD tune and then calibrate the maf I feel things will be right then. I am tired of tuning my car 24/7 running in open loop because of temperature changes so I am putting the maf back on just like HumpinSS. 
Phil
Yeah it makes me 
when I hear of 45 minute tunes or shops having dyno tune days where they schedule in 8 people in a 10-12 hour day. As another poster said "One tune fits all" although the 45 minute tune might become more of a reality very shortly.
when I hear of 45 minute tunes or shops having dyno tune days where they schedule in 8 people in a 10-12 hour day. As another poster said "One tune fits all" although the 45 minute tune might become more of a reality very shortly.
Originally Posted by HumpinSS
Because of the load dyno you shouldnt need more than an 1 hour to tune both SD and MAF, driving on the street all bets are off
Originally Posted by Phil99vette
Larry,
I agree, you can tune the VE table and the MAF table in 1-2 hours. Tweaking the idle transition tables is what usually takes me the longest.
I agree, you can tune the VE table and the MAF table in 1-2 hours. Tweaking the idle transition tables is what usually takes me the longest.
I understand I was speaking of the load dyno because Ive been there and done the 6-8 hour tuning thing, LORD do I remember LOL. LOOPPY LOOP around Waldorf and 210 until i got it right LOL
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Did you replace the MAF with any sort of tubing?
I honestly wouldn't expect much of a difference with the same induction setup i.e. different types of control but with the same induction configuration.
I honestly wouldn't expect much of a difference with the same induction setup i.e. different types of control but with the same induction configuration.
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Originally Posted by WS6FirebirdTA00
yes he had the maf off the car based on what Chad said.
hey guys,
why is it then that the boys in Austrailia are having such good results with MAFLESS tunes down there. I mean they all run MAFLESS down there and they've been playing with these engines and computers longer than we have.
On my car I am considering running a 2 bar Map with a Speed Density tune.
The guys down under are not only reporting nice gains but also getting a lot better fuel economy too.
why is it then that the boys in Austrailia are having such good results with MAFLESS tunes down there. I mean they all run MAFLESS down there and they've been playing with these engines and computers longer than we have.
On my car I am considering running a 2 bar Map with a Speed Density tune.
The guys down under are not only reporting nice gains but also getting a lot better fuel economy too.
