just bought a 2005 350z with a greddy tt kit and it's running K@n filters i was just wondering why i cant hear the turbos at all. i have owned a few turbo cars and all of them i could hear the tubo(s). my exhast is extremely quiet, actually it's quiter than a stock z. any opinions?

 

How much boost is it running? I can hear mine really well at around 8psi and up.

 

Build the motor and crank it up to 15+psi.

 

Blow Off Valve

 

You're running low boost for sure. Now your exhaust goes through casted manifolds and turbos rather than the stock thin little manifolds.

 

Hope the motor's in good condition.

 

maybe it's go no turbos!! lol..

nut'n wrong with it being quiet..

 

That's what I was thinking... LOL - the newb got pwnd!!!

 

no i'm running 8lbs of boost and around 400whp car is pretty fast no smoke or anything car runs great but i really miss the turbo noise. my blow off valve works fine it's also not all that loud. i have the wastegates dumped into the DP's

 

what engine management and fuel system is it running?

 

if you want noise get an HKS SSQV Blow off Valve

 

suggestions for you.

3" test pipes
3" exhuast
HKS SSQV

 

i have test pipes that merge together into one 3" exhaust. i'm using a utec and 650cc inj with a return fuel system.

 

oh and a big blue tial BOV which is not loud at all either, i mean you can hear the BOV but it's just not that loud

 

the TIAL looks like it's a good unit but just not the sound i would like. it's also located just in front of the left wheel.

 

Hey Kevin,

Couple things you would want to do is find out who tuned the car, change that single 3" exhaust to a GReddy EVO TT, and if the car is running fine leave it alone if not a retune is always a good idea as long as its done by a qualified shop.

Also if you would like more sound from the kit, and HKS SSQV BOV and EVO TT would take care of that, this is the combo I run on my personal car

If you need anything feel free to give us a call or shoot me a PM.

-George
GT Motorsports

 

thank you very much, is the SSQV that much louder than the TIAL? I was looking at the EVO TT it's just a little out of my reach right now, especially after the purchase of the car. is the single 3" just not good enough for the TT kit? If not would it be better to have a performance exhaust shop make a system for me until i can afford the EVO TT?

 

If you want sound SSQV>TIAL

Want performence TIAL>SSQV

All twin kits should have a duel exhaust. The Greddy EVO TT Would be a good choice Its not quite 3" its somthing like 2.75" but sounds much better then the bigger 3" systems out and would be plenty flow for you.

 

Dont know if this will make you feel better or not, my TN kit @ 9psi was louder (turbo spooling wise) than my Greddy twins at 13/15psi....

 

is there that much of a difference in peformance?