Fast Intentions exhaust is here!

MrBMW · 09-27-2009, 09:09 PM

Quote:

Originally Posted by dainedazz

MrBMW great vids!

12 daysssss!

Thanks daine, not long for you now mate. Bet you cant wait

Knives · 09-28-2009, 01:41 AM

Quote:

Originally Posted by dainedazz

MrBMW great vids!

12 daysssss!

I agree, pretty damn good sound quality on those vids.

Almost getting me as anxious about my FI exhaust as daine.

dainedazz · 09-28-2009, 02:56 AM

Quote:

Originally Posted by MrBMW

Thanks daine, not long for you now mate. Bet you cant wait

u already know man. ive been counting down since the days were in the 30's lol!

11 days to go!!

m4a1mustang · 09-28-2009, 01:39 PM

Really loving this exhaust the more I drive.

kdo2milger · 09-28-2009, 01:46 PM

Quote:

Originally Posted by m4a1mustang

Really loving this exhaust the more I drive.

u know u wanna put hfc's on...

m4a1mustang · 09-28-2009, 01:48 PM

Nah... don't want it any louder!

FuszNissan · 09-28-2009, 01:53 PM

I wouldn't. Well, berks atleast. I get a bad hiss. It's annoying.

kdo2milger · 09-28-2009, 01:56 PM

from where on the hfc's is the hiss coming from? or is it just a design side effect...

FuszNissan · 09-28-2009, 02:09 PM

Quote:

Originally Posted by kdo2milger

from where on the hfc's is the hiss coming from? or is it just a design side effect...

I don't know if it is the honey comb that is causing it when the back pressure is released, but when you rev it or let off the gas, your car hisses at you...lol That is the best way to put it.

XwChriswX · 09-28-2009, 02:11 PM

Quote:

Originally Posted by FuszNissan

I don't know if it is the honey comb that is causing it when the back pressure is released, but when you rev it or let off the gas, your car hisses at you...lol That is the best way to put it.

Just think it's not hissing at you, but at the cars around you...

kdo2milger · 09-28-2009, 02:14 PM

Quote:

Originally Posted by FuszNissan

I don't know if it is the honey comb that is causing it when the back pressure is released, but when you rev it or let off the gas, your car hisses at you...lol That is the best way to put it.

Quote:

Originally Posted by XwChriswX

Just think it's not hissing at you, but at the cars around you...

lol like a pissed off snake

m4a1mustang · 09-28-2009, 02:15 PM

The hiss is no good. Honestly, I think the 18" CBE sounds perfect. The best way I can describe it is as 2003 Cobra with HFC X-pipe and Magnaflow CBE meets Ferrari F355. Nice and deep rumble at low RPMs which transitions into that mid-range howl the Ford 4.6L's all have and then the higher pitched scream from the F355 at the top of the range.

kdo2milger · 09-28-2009, 02:19 PM

Quote:

Originally Posted by m4a1mustang

The hiss is no good. Honestly, I think the 18" CBE sounds perfect. The best way I can describe it is as 2003 Cobra with HFC X-pipe and Magnaflow CBE meets Ferrari F355.

so by your methodology....i drive a pissed off Ferrari

i can dig it

DannyGT · 09-28-2009, 02:27 PM

No...The hiss will come from any test pipe...and to answer one of the posts above me, its not being caused by a particular design flaw, its actually a harmonic resonance (think, frequency) that caused this sound at different rpms. I went threw a long drawn out process and the sound while being caused by test pipes, could almost be felt in the area where most X/Y configs meet. It was very odd, but that resonance was definitly caused by the test pipes.

Usually, between 2-3k while on the gas you can get a hiss/metalic zing/flutter type of sound, very very annoying in my book. Also, on decel during those same rpms, its just a straight hiss...

When I changed from the berk non-res test pipes to the GTM resonated ones it dramatically reduced the sound. In fact, I dont get that rattle on accel anymore, just a slight hiss on decel around 2500rpms.

From what I can tell, it may be possible to kill the sound all together by using those FI pipes that had a HFC & resonator all in one...I also heard that a true-dual exhaust with no connection (h/x/y) doesnt make the sound either. But it also doesnt make good power compared to a nice X setup.

dainedazz · 09-28-2009, 02:40 PM

all i know is that i hope that the cbe + long tube headers will create bigger and larger power gains vs. cbe + hfc/test pipes

and ofcourse have a sexier RAWR to the sound note

09-28-2009, 01:39 PM	#1849 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	Really loving this exhaust the more I drive. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

09-28-2009, 01:48 PM	#1851 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	Nah... don't want it any louder! __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

09-28-2009, 01:53 PM	#1852 (permalink)
FuszNissan A True Z Fanatic Join Date: May 2009 Location: St. Louis Posts: 14,275 Drives: Pure Sex Rep Power: 542	I wouldn't. Well, berks atleast. I get a bad hiss. It's annoying. __________________ Mods: Too Many to list! LouFuszNissan ZDAYZ 2012

09-28-2009, 01:56 PM	#1853 (permalink)
kdo2milger OG Priesthood Join Date: Feb 2009 Location: Fargo, ND Posts: 17,859 Drives: NISMO T Rep Power: 59	from where on the hfc's is the hiss coming from? or is it just a design side effect... __________________ Project *NISMO*

09-28-2009, 02:15 PM	#1857 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	The hiss is no good. Honestly, I think the 18" CBE sounds perfect. The best way I can describe it is as 2003 Cobra with HFC X-pipe and Magnaflow CBE meets Ferrari F355. Nice and deep rumble at low RPMs which transitions into that mid-range howl the Ford 4.6L's all have and then the higher pitched scream from the F355 at the top of the range. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook! Last edited by m4a1mustang; 09-28-2009 at 02:18 PM.

09-28-2009, 02:27 PM	#1859 (permalink)
DannyGT Track Member Join Date: Jan 2009 Location: Jersey Posts: 919 Drives: 370Z (SOLD) Rep Power: 279	No...The hiss will come from any test pipe...and to answer one of the posts above me, its not being caused by a particular design flaw, its actually a harmonic resonance (think, frequency) that caused this sound at different rpms. I went threw a long drawn out process and the sound while being caused by test pipes, could almost be felt in the area where most X/Y configs meet. It was very odd, but that resonance was definitly caused by the test pipes. Usually, between 2-3k while on the gas you can get a hiss/metalic zing/flutter type of sound, very very annoying in my book. Also, on decel during those same rpms, its just a straight hiss... When I changed from the berk non-res test pipes to the GTM resonated ones it dramatically reduced the sound. In fact, I dont get that rattle on accel anymore, just a slight hiss on decel around 2500rpms. From what I can tell, it may be possible to kill the sound all together by using those FI pipes that had a HFC & resonator all in one...I also heard that a true-dual exhaust with no connection (h/x/y) doesnt make the sound either. But it also doesnt make good power compared to a nice X setup. __________________ Performance GTM Stage 1 SC, GTM Res.Test Pipes, Invidia Gemini Exhaust, GTM HD Oil Cooler Wheels & Suspension AME Tracer TM02's 19x9.5F 19x10.5R w/ 265x35F & 305x30R, Hotchkis Sways, BC (BR) Racing Coilovers (Car Sold)

09-28-2009, 02:40 PM	#1860 (permalink)
dainedazz A True Z Fanatic Join Date: Jan 2009 Location: NY, NJ, Philippines Posts: 1,325 Drives: 09' SR 6MT Z34 Rep Power: 293	all i know is that i hope that the cbe + long tube headers will create bigger and larger power gains vs. cbe + hfc/test pipes and ofcourse have a sexier RAWR to the sound note __________________ DaineZ' Rosalena \| Kenwood \| Pioneer \| 3M \| 180 Custom \| Stillen \| Z1 \| Fast Intentions \| Setrab \| Eibach \| Varis \| UpRev \| TEIN \| UAM \| Amuse \| Bride \| Southbend \| WORK \| TWM \| BFGoodrich \| Robispec \| TAKATA \| GTSPEC \| *Instagram* @johndainez Last edited by dainedazz; 09-28-2009 at 02:46 PM.

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