Another Fast Intentions HFC / Exhaust Review! (WARNING: LOTS OF PICS)

ilive2win · 08-31-2009, 06:16 PM

congrats, how much is that carbon exhaust, im really interested in it, could someone pm me to let me know? thanks

phelan · 08-31-2009, 07:22 PM

Quote:

Originally Posted by pty370z

Hey phelan, congratulations on the install.. That definitely looks sick..

Just one question, is your 370Z at stock height or lowered with springs/coil-overs..??

Thanks and congrats. again..!!

Thanks! To answer your question: my 370Z is currently at stock height.

Quote:

Originally Posted by ilive2win

congrats, how much is that carbon exhaust, im really interested in it, could someone pm me to let me know? thanks

PM Tony and I'm sure he'll be more than happy to provide pricing.. F.I. Inc

m4a1mustang · 08-31-2009, 07:24 PM

LET THERE BE VIDS!!!

hurry!

dainedazz · 08-31-2009, 07:25 PM

yes ^^

Togo · 08-31-2009, 08:19 PM

That looks great! Thanks for taking the time to write everything up for us and for taking so many great pictures. This system is the TITS!

Oh and that sandwich looks so good. I want one now.

MrBMW · 08-31-2009, 08:32 PM

Thanks for taking the time to post this phelan. Definitely adds to the anticipation even more now.

To Tony stop posting on thread and get back to work hehehe (thanks again though mate).

Now to read the review properly.

F.I. Inc. · 09-01-2009, 09:43 AM

Quote:

Originally Posted by ilive2win

congrats, how much is that carbon exhaust, im really interested in it, could someone pm me to let me know? thanks

I got you covered, here is the link to my sale thread:

The Fast Intentions Inc. Exhaust sale...Pictures,Prices,Videos,Dynos & Sound Clips!!!

Trust me, everything that you will need is right there!

Call me when you are ready...

Thanks, Tony
(818) 882-2788

phelan · 09-02-2009, 11:37 AM

Posted dyno results. Tony, PM.

F.I. Inc. · 09-02-2009, 03:23 PM

Quote:

Originally Posted by phelan

Posted dyno results. Tony, PM.

Recieved.

F.I. Inc. · 09-02-2009, 03:37 PM

Quote:

Originally Posted by phelan

The AFR is also a little on the rich side through the entire run. Not sure since I'm still relatively new to all these, but a tune could probably help out a little here.

Phelan,

Your Air Fuel Ratio is NOT too rich. It is on the leaner side. The higher the number the leaner the A/F. The lower the number, the richer the A/F.

Optimum A/F for a naturally aspirated car is: 12.6:1-13.0:1

You are right in the optimum area.

Now, this makes sense that you car has leaned out. When you relieve back pressure like you have you lean a car out. Now, your mass air meter is designed to compensate for modifications. It does but only to an extent. I am looking at your dyno charts and I can tell you that the car leaned out. They are higher than the previous numbers. Also one thing to keep in mind, A/F numbers will be a different number the further back the reading is taken. The optimum point to take an A/f ratio reading on a dyno is before the catalytic converters. So to recap, I know that a set of aftermarket cats and cat back exhaust system such as ours WILL NOT lean a car out to the point of DANGER. However, it doesn't hurt to get a car tuned after the fact.

The popping noise you hear sometimes on deceleration is the freed up back pressure due to the free flowing exhaust.

One more thing to add, even though you are on a dynapak you are still hooked up to the axles, that is still considered a rear wheel or (at the tires reading)! To record flywheel power you have to dyno an engine on an engine dyno out of the car.

Call me if you need anything...

Thanks, Tony

phelan · 09-02-2009, 03:48 PM

Yeah, I knew the A/F basics, but I thought 14.something was the optimum ratio ><' oops

Thanks Tony!

drisko · 09-02-2009, 05:27 PM

Quote:

Originally Posted by phelan

Also, be prepared for some popping to occur from the released backpressure. Makes the car sound 'racey', and some people may NOT like it...I was certainly surprised, so just warnin' you all. See Tony's response on page 2 for better explanations.

This is one of the things I really like about the exhaust system. The "popping" sounds awesome to me.

Togo · 09-02-2009, 05:48 PM

I love the popping sound. My bike does it too when I down shift for a hard decel. It's funny too because apparently you see flames out of my tail pipe on occasion.

phelan · 09-02-2009, 05:54 PM

Yup, it's just a word of warning to those who aren't prepared. I still freak out every so often at the really loud one, but I'm mostly used to it now, and it's quite nice

ZiGMoN · 09-02-2009, 06:49 PM

Gratz on the install, Phelan! and great pics!

I get the pop (more like a gurgle) too. (FI CBE w/stock cats). This happens on deceleration between shifts most noticebly 1st-2nd, 2nd-3rd gears on my car. No idea what it sounds like outside the cabin.

I was concerned at first but listened to a video I had of the my stock exhaust and had it then too, although at a lower volume. Just more noticeable on the free flowing exhaust as Tony mentioned. I got used to it.

08-31-2009, 07:24 PM	#18 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	LET THERE BE VIDS!!! hurry! __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

08-31-2009, 07:25 PM	#19 (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	yes ^^ __________________ 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

08-31-2009, 08:32 PM	#21 (permalink)
MrBMW Enthusiast Member Join Date: Jun 2009 Location: Brisbane, Australia Age: 48 Posts: 384 Drives: YELLOW 370Z 6MT NAV Rep Power: 16	Thanks for taking the time to post this phelan. Definitely adds to the anticipation even more now. To Tony stop posting on thread and get back to work hehehe (thanks again though mate). Now to read the review properly. __________________ My New Car Album. Stillen Gen III Intake Installed, F.I. RTP's Cat Back INSTALLED

09-02-2009, 03:48 PM	#26 (permalink)
phelan A True Z Fanatic Join Date: Apr 2009 Location: CA Age: 38 Posts: 9,513 Drives: Scoobaroo Rep Power: 3406	Yeah, I knew the A/F basics, but I thought 14.something was the optimum ratio ><' oops Thanks Tony! __________________ 凛 ('Rin') - 2009 Nissan 370Z With silence comes peace. With peace comes freedom. With freedom comes silence. Last edited by phelan; 09-02-2009 at 05:05 PM.

09-02-2009, 05:54 PM	#29 (permalink)
phelan A True Z Fanatic Join Date: Apr 2009 Location: CA Age: 38 Posts: 9,513 Drives: Scoobaroo Rep Power: 3406	Yup, it's just a word of warning to those who aren't prepared. I still freak out every so often at the really loud one, but I'm mostly used to it now, and it's quite nice __________________ 凛 ('Rin') - 2009 Nissan 370Z With silence comes peace. With peace comes freedom. With freedom comes silence.

08-31-2009, 06:16 PM	#16 (permalink)
ilive2win Track Member Join Date: Jul 2009 Location: san diego Posts: 872 Drives: 11WWX Rep Power: 17	congrats, how much is that carbon exhaust, im really interested in it, could someone pm me to let me know? thanks

08-31-2009, 08:19 PM	#20 (permalink)
Togo A True Z Fanatic Join Date: May 2009 Location: E. Northport, NY Posts: 7,597 Drives: Stuff Rep Power: 657	That looks great! Thanks for taking the time to write everything up for us and for taking so many great pictures. This system is the TITS! Oh and that sandwich looks so good. I want one now.

09-02-2009, 11:37 AM	#23 (permalink)
phelan A True Z Fanatic Join Date: Apr 2009 Location: CA Age: 38 Posts: 9,513 Drives: Scoobaroo Rep Power: 3406	Posted dyno results. Tony, PM.

09-02-2009, 05:48 PM	#28 (permalink)
Togo A True Z Fanatic Join Date: May 2009 Location: E. Northport, NY Posts: 7,597 Drives: Stuff Rep Power: 657	I love the popping sound. My bike does it too when I down shift for a hard decel. It's funny too because apparently you see flames out of my tail pipe on occasion.

09-02-2009, 06:49 PM	#30 (permalink)
ZiGMoN Base Member Join Date: Mar 2009 Location: SoCal Posts: 37 Drives: 09 Nissan 370z PG M6 Rep Power: 16	Gratz on the install, Phelan! and great pics! I get the pop (more like a gurgle) too. (FI CBE w/stock cats). This happens on deceleration between shifts most noticebly 1st-2nd, 2nd-3rd gears on my car. No idea what it sounds like outside the cabin. I was concerned at first but listened to a video I had of the my stock exhaust and had it then too, although at a lower volume. Just more noticeable on the free flowing exhaust as Tony mentioned. I got used to it. __________________ 2009 370z - PG M6 8%/15% Tint <> Eibach Pro Springs <> F.I. TDX CBE <> Stillen G3 Intakes

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