Silly tuning question

zuperman 370 · 04-12-2012, 03:06 PM

Hey guys I hope that I don't get a lot of heat for asking this question, a friend of mine told me that after I tune the car and adjust the AFR, there is a chance that the hiss and a bit of rasp may reduce due to the AFR being adjusted, right now my car is not tuned of course, mods that I have are FI long tube headers amuse y pipe amuse stti exhaust, sounds good, but when I'm driving and I remove my foot from the paddle or down shift there is this annoying loud hiss, like Exess air coming out of the exhaust or something and it's really annoying, so will a tune and adjusting the AFR reduce that because in some way you are adjusting the air that comes in and out of the car? And second question is that I just recently installed the y pipe, had the other mods on way before that, will the rasp and hiss reduce over time once the y pipe breaks in with the other parts?

edub370 · 04-12-2012, 04:21 PM

the rasp is something we just have to deal with in this car. i dont think a tweek in afr's will cahnge that much.

zuperman 370 · 04-12-2012, 04:38 PM

Quote:

Originally Posted by edub370

the rasp is something we just have to deal with in this car. i dont think a tweek in afr's will cahnge that much.

What about the hiss, especially when I take my food off the peddle or down shift

edub370 · 04-12-2012, 05:44 PM

Yep. smae sort of thing. both can varie depending on what exhaust setup u get. i believe art pipes are the best thing to combat both of these issues

zuperman 370 · 04-12-2012, 05:48 PM

I already have long tube headers installed thus I can't use art pipes please correct me if I'm wrong

edub370 · 04-12-2012, 06:39 PM

yes u are correct. sry i had missed that part

04-12-2012, 03:06 PM	#1 (permalink)
zuperman 370 Track Member Join Date: Dec 2009 Location: BAHRAIN Posts: 944 Drives: 370z 2010 at blue Rep Power: 16	Silly tuning question Hey guys I hope that I don't get a lot of heat for asking this question, a friend of mine told me that after I tune the car and adjust the AFR, there is a chance that the hiss and a bit of rasp may reduce due to the AFR being adjusted, right now my car is not tuned of course, mods that I have are FI long tube headers amuse y pipe amuse stti exhaust, sounds good, but when I'm driving and I remove my foot from the paddle or down shift there is this annoying loud hiss, like Exess air coming out of the exhaust or something and it's really annoying, so will a tune and adjusting the AFR reduce that because in some way you are adjusting the air that comes in and out of the car? And second question is that I just recently installed the y pipe, had the other mods on way before that, will the rasp and hiss reduce over time once the y pipe breaks in with the other parts?

04-12-2012, 04:21 PM	#2 (permalink)
edub370 A True Z Fanatic Join Date: May 2011 Location: KCMO Posts: 3,458 Drives: 09 370z S/T 6MT Rep Power: 20	the rasp is something we just have to deal with in this car. i dont think a tweek in afr's will cahnge that much. __________________ 09 370Z ST 6MT//Injen CAI//Greddy CBE//TP//TSW's//Swifts//Stillen lip//Whiteline sways 326whp/268tq

04-12-2012, 05:44 PM	#4 (permalink)
edub370 A True Z Fanatic Join Date: May 2011 Location: KCMO Posts: 3,458 Drives: 09 370z S/T 6MT Rep Power: 20	Yep. smae sort of thing. both can varie depending on what exhaust setup u get. i believe art pipes are the best thing to combat both of these issues __________________ 09 370Z ST 6MT//Injen CAI//Greddy CBE//TP//TSW's//Swifts//Stillen lip//Whiteline sways 326whp/268tq

04-12-2012, 06:39 PM	#6 (permalink)
edub370 A True Z Fanatic Join Date: May 2011 Location: KCMO Posts: 3,458 Drives: 09 370z S/T 6MT Rep Power: 20	yes u are correct. sry i had missed that part __________________ 09 370Z ST 6MT//Injen CAI//Greddy CBE//TP//TSW's//Swifts//Stillen lip//Whiteline sways 326whp/268tq

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04-12-2012, 05:48 PM	#5 (permalink)
zuperman 370 Track Member Join Date: Dec 2009 Location: BAHRAIN Posts: 944 Drives: 370z 2010 at blue Rep Power: 16	I already have long tube headers installed thus I can't use art pipes please correct me if I'm wrong