3inch single exit exhaust too big for N/A

Jeffblue · 12-07-2011, 11:19 PM

v6 NA... the only place where people get into heated arguments about 4whp gains. the gain you'd get from 4whp is less than you'd get from:
1. running smaller diameter (lighter) wheels
2. driving without a passenger
3. running 93 vs 91 gas

the list goes on. Who cares? if you like the exhaust, get it. no one should care about 4whp in either direction.

travisjb · 12-07-2011, 11:20 PM

on my car in above video, it sounds harsh... but that's because i have zero sound insulation... better to hear it from outside

can hear it better here at ~1:15 as I pass the car taking video

Kingbaby · 12-08-2011, 02:08 AM

^^^

OMG

I have been calling the 370Z weak in terms of exhaust note!

NO longer

every one should be doing this if it's not your DD!

<------has 3" on 350z loves it

Motordyne · 12-08-2011, 10:56 PM

This link gives a quick summary of what I found with a 350Z on the dyno.
I did lots and lots of testing.

JIC Ti - 80mm OK for N/A? - MY350Z.COM Forums

shaun66 · 12-08-2011, 11:14 PM

^ Very informative thank you for doing all that research

VDC_OFF · 12-12-2011, 11:35 AM

Quote:

Originally Posted by corbin09

I dont have a video.. I may be able to post up a dyno chart however... Let me e-mail my tuner and see what he has on file. With non-res tp and the topspeed y pipe into a muffler that was pretty much a straight pipe was very loud. I think with HFC's you will be happy. It will be loud but shouldnt drone as much.

Btw, I had the Top Speed y pipe and Berk HFC's put on Friday to go with my Top Secret exhaust... My God this thing screams now! It does rattle the trunk a bit revving past 4-5k but it a much better response. Even stepping on it while cruising at 60 in 6 gear it accelerates. Before I had to downshift to 5. Im happy

@617DRFT_370z · 01-25-2016, 08:08 AM

Quote:

Originally Posted by edub370

dual 3" WILL lose you low end torque. back ressure creates torque. sure u might gain slight hp up top but the butt dyno will feel like there is less power because of the torque loss.

and before anyone asks "how do u know if a 3" will lose power? have u tried it?"... well no i havent, but i understand how cars work...

"Horsepower sells cars, torque wins races".

-Enzo Ferrari-

Dont mean to sound like a jerk, but ur only partially correct. I made 330whp 270wtrq with my Amuse R1 Titan Extra. Swapped to Tomei Expreme Ti with same mods on car, made 330whp/270wtrq, same exact numbers. 270 peak trq @ 3000rpms and actually carries the trq curves higher and longer through the revs than the Amuse dual exhaust did. High revving cars dont want any back pressure, trq is measured on how fast exhaust gas leaves the cylinder, you want straight flow no back pressure or turbulence from flanges or bends. If anything, trq is sustained better through the revs and hp curve seemed to drop up top, but peak numbers were both same. Strange i know, EcuTek and DynoJet do not lie.

FPenvy · 01-25-2016, 09:11 AM

ZOMBIE THREAD!

5 year old revive lol

JARblue · 01-25-2016, 09:16 AM

Quote:

Originally Posted by FPenvy

ZOMBIE THREAD!

5 year old revive lol

FPenvy · 01-25-2016, 09:17 AM

Quote:

Originally Posted by JARblue

silly noobs.

TerribleONE · 01-25-2016, 10:11 AM

Holy dead thread batman

VABAM · 01-27-2016, 12:17 PM

Oh and IBTL

Chuck33079 · 01-27-2016, 12:18 PM

Yeah, he comes in, drops some "knowledge" like the above, and disappears again. He should stay and play. We haven't had someone this aggressively stupid in a while.

VABAM · 01-27-2016, 12:34 PM

Quote:

Originally Posted by Chuck33079

Yeah, he comes in, drops some "knowledge" like the above, and disappears again. He should stay and play. We haven't had someone this aggressively stupid in a while.

I was warming up my popcorn expecting a show.

cv129 · 01-27-2016, 12:46 PM

His post history says this:

Joined and made 1 post on 2013.

In February 2015, his car makes almost 400 ft lbs wheel torque and gps verified vmax at 175mph.

In October 2015, his car is the faster/fastest n/a 370z in Boston.

In this thread he claims 330whp and 270tq at some point.

His parents let him out of his timeout to play forza and use internet, and he got too excited. I forgive him

12-07-2011, 11:20 PM	#47 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	on my car in above video, it sounds harsh... but that's because i have zero sound insulation... better to hear it from outside can hear it better here at ~1:15 as I pass the car taking video __________________ 2009 370Z #104 For Sale

01-25-2016, 10:11 AM	#56 (permalink)
TerribleONE A True Z Fanatic Join Date: Jan 2009 Location: Socal Posts: 10,203 Drives: WOT Rep Power: 5851	Holy dead thread batman __________________ 638WHP 541WTQ @ 13.5PSI Build thread

01-27-2016, 12:17 PM	#57 (permalink)
VABAM A True Z Fanatic Join Date: May 2010 Location: No Where VA Posts: 4,003 Drives: with VDC off. Rep Power: 197	Oh and IBTL FPenvy likes this. __________________ 2009 370Z Touring W/SP

01-27-2016, 12:18 PM	#58 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	Yeah, he comes in, drops some "knowledge" like the above, and disappears again. He should stay and play. We haven't had someone this aggressively stupid in a while. VABAM, JARblue, FPenvy and 4 others like this. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

01-27-2016, 12:46 PM	#60 (permalink)
cv129 A True Z Fanatic Join Date: Jul 2011 Location: Dallas, TX Posts: 3,268 Drives: 09 Nismo, 16 Nismo Rep Power: 163996	His post history says this: Joined and made 1 post on 2013. In February 2015, his car makes almost 400 ft lbs wheel torque and gps verified vmax at 175mph. In October 2015, his car is the faster/fastest n/a 370z in Boston. In this thread he claims 330whp and 270tq at some point. His parents let him out of his timeout to play forza and use internet, and he got too excited. I forgive him VABAM, JARblue, FPenvy and 4 others like this. __________________ Setrab \| RE-71 \| SPL \| JRZ \| Nismo \| ARK \| Whiteline \| RacingBrake \| CJM Oil Pan \| Ti shield

12-07-2011, 11:19 PM	#46 (permalink)
Jeffblue A True Z Fanatic Join Date: Dec 2009 Location: NY Age: 37 Posts: 9,192 Drives: Z32TT & 335xi Coupe Rep Power: 38	v6 NA... the only place where people get into heated arguments about 4whp gains. the gain you'd get from 4whp is less than you'd get from: 1. running smaller diameter (lighter) wheels 2. driving without a passenger 3. running 93 vs 91 gas the list goes on. Who cares? if you like the exhaust, get it. no one should care about 4whp in either direction.

12-08-2011, 10:56 PM	#49 (permalink)
Motordyne Enthusiast Member Join Date: Nov 2008 Location: Los Angeles Posts: 384 Drives: Z Rep Power: 17	This link gives a quick summary of what I found with a 350Z on the dyno. I did lots and lots of testing. JIC Ti - 80mm OK for N/A? - MY350Z.COM Forums

12-08-2011, 11:14 PM	#50 (permalink)
shaun66 Track Member Join Date: Mar 2010 Location: n Posts: 837 Drives: MB 370z 7AT Rep Power: 17	^ Very informative thank you for doing all that research

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