which exhausts currently available would be best suited for a turbo setup?

Borla sounds enticing but I want to make sure I can still use it when I go FI.

I am also debating on going with titanium exhuast. Seems the Z really responds well to weight reduction.

 

The fujitsubo has a 3" tip I am pretty sure, that's good for FI. Make sure whatever you get has at least a 3" tip. PM John350Z, I think he has a Fujitsubo, and they are titanium. They make about a 8hp gain adn 6tq I think, not too bad. The Injen exhaust has a big tip. The Borla true dual will probably have a big tip(s). And any car responds well to weight reduction.

 

why the hell would the tip size make any difference? i can have 1 inch piping from the headers back and have a 4 inch tip, are you telling me Im going to get power gains?

 

Dumbest thing I heard today.

 

Just get the exhaust with 3in piping. In the case of the Turbo cars, the bigger is better. My friend has 3 1/4in piping on his Supra, and I had 3in piping on my Prelude.

 

question:

3in piping is usually single exhaust?
The borla is dual 2.25, so the airflow should be more or less the same. Am i right?

 

NISSAN350ZTT- it has nothing to do with the tips itself its all in the piping.
if you plan on making some serious horsepower, or just want some improved response id go ahead and get 3" piping, the goal is you want to have the least amount of backpressure present with a turbo setup. (and yes the turbo does produce some backpressure)
ive seen some supras running 4" piping
franklinz

 

I knew everyone would say something about the 3"tip comment. I meant 3" or bigger piping. Oh well, it was a simple mistake.

 

Well if you have 5 inch piping and a 1 inch tip you may experience difficulty.

 

Do you just have to antaganize everything I say or do you just get pleasure out of it?

 

antagOnize. I don't know. Just my sense of humor.

 

Ok, my bad, sorry, I took it like you were attacking me not just joking around.

 

Bigger piping equals less back pressure, which allows a turbo to spool sooner and build boost faster once it's spooled.
For SC's piping size is important but not as much as it is with a turbo because spool is achieved by crank rather than exhaust. Of course you don't want to cram 400 hp into a single 2 inch exhaust, but a 2.25 true dual should flow 400 crank hp fine. If you went bigger you'd get more top end and lose bottom end...same as the general rule for N/A cars.

 

dude dont take stuff too seriously! lol. we're all z lovers here.
franklinz

 

I wish that was a general rule for women, too.

 

why dont you just take the pipe off and then you dont have to worry about the size of it . and there wont be mcuh back preseaure if you make the exhausts stop at the cats just hope that no cops hear it.

 

they sell kits that electrically opens a valve to divert the exhaust stream from a restrictive system and dump it out the sides.
i cant remember the site, but the setup sure beats the heck out of getting a ticket/buying an expensive exhaust set up and or manually opening a diverter.
franklinz

 

Top secret exhaust is 100mm, which is what they use on their turbo 350Z.

 

"Top secret exhaust is 100mm, which is what they use on their turbo 350Z."


That's almost 4" (3.94") for us not on the metric system yet.
Obviously a single system.

 

Cross sectional area of a circle is Pi*r^2:

2.25 Dual = 2*(2.25/2)^2*pi = 7.95 in^2
3.00 Sngl = (3.00/2)^2*pi = 7.07 in^2
3.25 Sngl = (3.25/2)^2*pi = 8.29 in^2

In addition to the cross sectional area, one must consider the flow profile of a fluid, which, due to friction with the sidewalls, slows down and basically becomes zero at the interface with the walls of the exhaust pipes. Therefore, it is likely that even though the 2.25 dual has a larger X-Sectional Area than the 3.00 single exhuast, the single will flow very similarly.

Anyhow, I'd say that yes, you are right.

-D'oh!