2bar MAP tuning
10-19-2006, 08:12 PM
#11
Originally Posted by Holty
hey guys, just realized, am i going to have to go vacuum mod for my tranny now since i'm going 2bar. i do plan to keep my maf so will this work?
10-19-2006, 08:15 PM
#12
Originally Posted by dc_justin
You won't have to do a vacuum mod. MAF is not directly linked to Trans in any way on our trucks. On older tunes a lack of a MAF would send trans to full line pressure, but you can tune around that also.
10-19-2006, 08:18 PM
#13
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Why would you have to go vacuum mod...you are changing the operating system by going 2 bar...in essence rescaling the 5v signal so the VCM knows how much vacuum/boost you have. Why wouldn't the trans shift right? Just wondering I haven't ever heard of this either
Dave
Dave
10-19-2006, 08:22 PM
#14
Originally Posted by Bowtie70SS
Why would you have to go vacuum mod...you are changing the operating system by going 2 bar...in essence rescaling the 5v signal so the VCM knows how much vacuum/boost you have. Why wouldn't the trans shift right? Just wondering I haven't ever heard of this either
Dave
Dave
BTW bowtie, I think I just downloaded your tune off of HPT...yep Dave 8psi radix. How recent is that tune?
10-19-2006, 08:28 PM
#15
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Originally Posted by dewmanshu
I just noticed that 2002 back tunes have the trans diag/MAF dtc table but 2003+ doesn't. So....it doesn't matter? Trucks don't increase pressure on the failure? I remember when I first started tuning everybody bitched about it, but I never experienced it...it being line pressure increase.
10-20-2006, 06:05 AM
#16
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Originally Posted by dewmanshu
I just talked to him, he was confusing some information..call it cross confusion. LOL
BTW bowtie, I think I just downloaded your tune off of HPT...yep Dave 8psi radix. How recent is that tune?
BTW bowtie, I think I just downloaded your tune off of HPT...yep Dave 8psi radix. How recent is that tune?
That tune wasn't right...I tried to get them to take it down. I have a much better one down. That one had some flaws including the PE enable. I no longer have that engine or cam. I have figured out lots since then, I also have another mod (fans). If you want a copy of my latest one let me know
Dave
10-20-2006, 11:07 AM
#18
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Originally Posted by dc_justin
You won't have to do a vacuum mod. MAF is not directly linked to Trans in any way on our trucks. On older tunes a lack of a MAF would send trans to full line pressure, but you can tune around that also.
