Can you have a tune for two boost levels?
Can you have a tune for two boost levels? I was just thinking... i am looking at doing the STS kit this winter. I was planning on running 5 psi everyday to keep it safe but was also hoping to be able to bump it up to 8 psi when needed. Now... Can 1 tune be good for both levels? Is there such thing as 2 tunes? Or would running a very safe tune for 5 psi + meth be okay for 8 psi?
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TECH Addict
Joined: Aug 2004
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i think you need a standalone or speed density tune for it but im not sure! lol
i def know with a standalone you can run whatever you like. the ECU will just compensate for the extra air with more fuel (as long as its in the look up tables).
thanks Chris.
i def know with a standalone you can run whatever you like. the ECU will just compensate for the extra air with more fuel (as long as its in the look up tables).
thanks Chris.
I have always heard tune for you highest boost level that you plan to run and anything below that the computer can handle. I plan to see around 13-15lbs on the dyno with my small 3.2 Blower pulley then after the dyno session put a 4.00 blower pulley on to see around 8-10lbs, the computer should be able to handle that??
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Originally Posted by MIGHTYMOUSE
thatidea never works, if you try 8 and it does not blow up... at 8 it will stay.
I run two boost levels, one with no meth and one with meth. I just turn the boost up with the meth on until I get the a/f I want after it's tuned for 91 octane. At least that's what I did before.
91 octane has let me go 15psi so far, still have to play with the meth
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He couldn't run an electric boost controller of sorts with 5-8 in it? Tune for 8 and run 5 until he wants to romp someone's butt? I would just speed density it with a 2-bar and call it done.
ok, i did check into speed density. jsut involves ditching my MAF and swapping my stock MAP to a 2-bar correct? Then when i switch boost levels, will the car jsut know itself to switch over to handle the 8 psi? You are actually probably right that if i hold up at 8 psi i wont touch it, but right now im thinking i want to run 5 psi around town BUT be able to crank it up at any moment to 8psi and have it run fine... what should i do... run speed density and meth but only have meth come on at 8 psi?
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and you can switch the boost level while driving, the computer will just know to switch tunes? Also, should i set this up with meth too?
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Joined: Feb 2002
Posts: 985
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From: Lake Orion, MI
Originally Posted by Darren P
with a maf why cant you run two bost levels
dont it just measure more air untill it is maxed out?
dont it just measure more air untill it is maxed out?
You'll run slightly rich when it's closed but be right on when you open up the dump.
Rick
