blueberryjones
12-25-2014, 12:35 PM
Hey fellas,
Obviously brand new to the forums, and for good or bad, I have been lurking around for a bit. I have a 2015 S4 6MT that I would like to add a little bit more go to. However I live in Denver where altitude loss on N/A cars is huge factor, and to lessor extent than F/I. However I have learned that unlike a turbo charger, a supercharger at altitude will make less boost than requested at sea level (whereas a turbo will still compress the thinner air to achieve similar sea level amounts of boost). I know that one way to correct this would be with a smaller pulley and tune (e.g. GIAC Stg 2). However, I was wondering if just a stg 1 ecu tune would also increase boost at altitude. So with that info I would like to know:
1) Is just a simple ecu tune worth it at 5,000 ft? Does stg 1 produce more boost, or is that only accomplished with a smaller pulley+ecu tune. I am not trying to break into the 11's or anything like that, but at the same time don't mind spending the extra money for much better results at altitude.
2) I have heard that Audi will literally break into your house punch your wife, spit in your face, and take your first born if you are flagged TD1. One way to avoid this from happening (although not 100% guaranteed) is flash the ecu back to stock before taking it in for warranty work. Does this method still work if the car is chipped with a pulley (I believe it does)?
3) Lastly any guys running JUST a stg 2 setup with no intake and/or exhaust? I get that these cars benefit from an intake and such, but I really want to keep everything stock except for the ecu and pulley. I guess what I am asking is if there is any harm in running a completely stock setup with a chip and a smaller pulley.
Thanks in advance, and if I sound like an idiot please feel free to tell me.
Merry Christmas!
Obviously brand new to the forums, and for good or bad, I have been lurking around for a bit. I have a 2015 S4 6MT that I would like to add a little bit more go to. However I live in Denver where altitude loss on N/A cars is huge factor, and to lessor extent than F/I. However I have learned that unlike a turbo charger, a supercharger at altitude will make less boost than requested at sea level (whereas a turbo will still compress the thinner air to achieve similar sea level amounts of boost). I know that one way to correct this would be with a smaller pulley and tune (e.g. GIAC Stg 2). However, I was wondering if just a stg 1 ecu tune would also increase boost at altitude. So with that info I would like to know:
1) Is just a simple ecu tune worth it at 5,000 ft? Does stg 1 produce more boost, or is that only accomplished with a smaller pulley+ecu tune. I am not trying to break into the 11's or anything like that, but at the same time don't mind spending the extra money for much better results at altitude.
2) I have heard that Audi will literally break into your house punch your wife, spit in your face, and take your first born if you are flagged TD1. One way to avoid this from happening (although not 100% guaranteed) is flash the ecu back to stock before taking it in for warranty work. Does this method still work if the car is chipped with a pulley (I believe it does)?
3) Lastly any guys running JUST a stg 2 setup with no intake and/or exhaust? I get that these cars benefit from an intake and such, but I really want to keep everything stock except for the ecu and pulley. I guess what I am asking is if there is any harm in running a completely stock setup with a chip and a smaller pulley.
Thanks in advance, and if I sound like an idiot please feel free to tell me.
Merry Christmas!