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-   -   2010 370Z NISMO Twin Turbo build courtesy of GTM (http://www.the370z.com/forced-induction/18551-2010-370z-nismo-twin-turbo-build-courtesy-gtm.html)

LateralG'z 05-14-2010 10:01 AM

one sick car

stormcrow 05-14-2010 10:10 AM

Quote:

Originally Posted by JB-370z (Post 537013)
Love the picture change! The unwanted sound you are talking about, is it coming from the mid pipe?

Actually it is coming from the rear section. Its resonance is so drastic that it is vibrating all of the plastics in the boot. I have a feeling it is the cans. I think GReddy put those resonators there for a reason.

JB-370z 05-14-2010 11:05 AM

SAM: Will I have this problem with the custom exhaust????

stormcrow 05-14-2010 11:19 AM

Quote:

Originally Posted by JB-370z (Post 537109)
SAM: Will I have this problem with the custom exhaust????

My thoughts - very doubtful. The way GReddy designed this exhaust is what is causing the issue. Again, those resonators are there for a reason. :) I was foolish to remove them for the extra gain.

fstrnldr 05-14-2010 03:03 PM

Quote:

Originally Posted by JB-370z (Post 537109)
SAM: Will I have this problem with the custom exhaust????

If you are talking about the GTM 3" it is mellow compared to the GReddy exhaust.

CGMobile370Z 05-14-2010 03:39 PM

Quote:

Originally Posted by stormcrow (Post 536991)
Deal. I just needed to get a good pic of my Z before changing the avatar. Now there are so many to choose from!





Thanks for all of the information on resonance. I don't think I can delete any of the length of this GReddy piping, so I will try the resonators they place in the cans at the end and see if that helps. If not, then I think I will just try to stick two bananas in the tailpipes. :)

The EVC's fit is just as good as it looks in those photos. The only caveat is that the angle is a bit harsh for the driver and it takes some maneuvering to read. That and at night, the light from it is in the passenger's eyes. *haha* Who really cares about that, though?

I didn't want open dumps, so no externals. I didn't want to recirc them, either. For the power level that I wanted, internals were perfectly fine. Any possible boost creep/spikes is going to be mediated by the EVC. But, I haven't seen any yet. Even with the more free-flowing exhaust.

How much boost are you running? I think at low boost levels internal wastegates work great.

k20z3 05-14-2010 04:10 PM

Loved reading this thread over and over I can't find that video that shows the car running in the streets and fly by

stormcrow 05-14-2010 04:23 PM

Quote:

Originally Posted by CGMobile370Z (Post 537390)
How much boost are you running? I think at low boost levels internal wastegates work great.

7psi mostly. I have a "high-boost" setting of basically 9psi. But, I have yet to even run it at this level.


Quote:

Originally Posted by k20z3 (Post 537422)
Loved reading this thread over and over I can't find that video that shows the car running in the streets and fly by

Here ya go.

YouTube - GTM 370Z NISMO TWIN TURBO PROJECT 518RWHP 420RWTQ @ 9 PSI

k20z3 05-14-2010 04:49 PM

Quote:

Originally Posted by stormcrow (Post 537431)
7psi mostly. I have a "high-boost" setting of basically 9psi. But, I have yet to even run it at this level.




Here ya go.

YouTube - GTM 370Z NISMO TWIN TURBO PROJECT 518RWHP 420RWTQ @ 9 PSI

Thanks Jeremy!

DRoc7822 05-15-2010 02:59 AM

See its threads like these that get me excited!! I dont even have a Z yet but am foaming at the mouth!! Thats a really good video too... did GTM make the video or did you? This gives me hope.

SAM@GTM 05-15-2010 11:48 AM

Quote:

Originally Posted by DRoc7822 (Post 538185)
See its threads like these that get me excited!! I dont even have a Z yet but am foaming at the mouth!! Thats a really good video too... did GTM make the video or did you? This gives me hope.

We did the video, waiting on Storm's version going sideways :D

Sam

Snakes709 05-17-2010 08:50 PM

by far the best TT install ever, looks amazing on the nismo. Question, are your boost gauge and wideband in a 2 gauge pillar or did you just install them in the stock piller?

stormcrow 05-17-2010 09:53 PM

Quote:

Originally Posted by Snakes709 (Post 541505)
by far the best TT install ever, looks amazing on the nismo. Question, are your boost gauge and wideband in a 2 gauge pillar or did you just install them in the stock piller?

They are installed in little cups mounted to the stock pillar. They are actually ingenious little things that Sam came up with. Very little room taken up and no need to move your head when going around sharp left-hand turns. Completely unobtrusive. I love them.

stormcrow 05-27-2010 08:44 PM

Update on the GReddy Exhaust
 
Update on the GReddy TI-C TT exhaust. After putting the resonators back into the cans, all is right with the world. These are absolutely there for a reason. Drone is acceptable at cruise and cabin noise now consists more of tire and typical road noise. Best of all, I'm no longer vibrating the rear deck apart from 2500-3000 RPMs.

LiquidZ 05-27-2010 09:09 PM

Quote:

Originally Posted by stormcrow (Post 553212)
Update on the GReddy TI-C TT exhaust. After putting the resonators back into the cans, all is right with the world. These are absolutely there for a reason. Drone is acceptable at cruise and cabin noise now consists more of tire and typical road noise. Best of all, I'm no longer vibrating the rear deck apart from 2500-3000 RPMs.

Are these the silencers or something else?


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