Fast Intentions exhaust is here! (continued)

NBZ34 · 11-28-2012, 11:38 PM

Quote:

Originally Posted by LakeShow

I have had the exhaust on for about a week and a half now and I think I'm really feeling the loss of low end torque. It's very sluggish in low RPMs and in fact I'm not sure if this is related or not but my car (7AT) is having trouble holding the RPMs in any gear at lower RPMs.

The RPMs for example will be around 3.5k in 4th, then if I slightly let off the throttle it just dips to 2k and under as if I was holding in a clutch on a manual car rather than gradually descend as it would or should normally. That happens in almost every gear. This is my first mod. Is what I'm feeling the loss of low end torque or maybe some other issue my car maybe having with the gears and holding low RPMs? The car is 2013 2,000 miles on it.

You should actually have an increase in low and mid tq/hp. Put it on a dyno.. another question... did you take a baseline dyno before you installed the CBE?

FPenvy · 11-28-2012, 11:53 PM

Quote:

Originally Posted by agrotech

You should actually have an increase in low and mid tq/hp. Put it on a dyno.. another question... did you take a baseline dyno before you installed the CBE?

I agree with you I never have felt a dip in power only increase. Also makes me wish I had dyno places closer to have taken a baseline prior to my exhaust and then with it since I just out my intakes on. I'd have to say I'd be close to the numbers tony has posted on page 1 of this thread being about 308whp with the cbe and test pipes. I'm hoping to dyno mine I spring possibly get a full tune as wheel to me around 320-330whp but fingers crossed since those are big number for just exhaust and intakes plus a tune lol

axmea? · 11-29-2012, 12:55 AM

Quote:

Originally Posted by henryy370z

You got non res cf with res hfc? Hows the tone on that? Or cabin noise

Yes, this is the combination that I have. Glad I got the HFC. I figured, he's already going to work on it anyway, why not throw that in. I get the thumbs up at stop lights and when simply driving by at cruising speed.

Tone - Low tone growl at lower rpms, sexy burbling sound between 3k to 4k, roars when you floor it. Best way to describe it -- exotic or excitingly unique. Love this exhaust.

Volume - it is loud when you gun it, loud when down shift at midrange, loud when your at 60-70 mph at 2.5 to 3k rpm at 6 gear, down shift to 5th and she sings with an excitingly unique roar. Shift to 4th and your ears asks for more. It is loud when your next to bus, loud when your next to semi, and loud next to a Porsche. It is loud when you're under a bridge, even louder in a tunnel, which by the way is fun times when you down shift. It is loud when Synchro Rev Match kicks in on the downshift. FI + SRM + Tunnel =

This said, what do think would it be like in the cabin? Take a wild guess. Tony suggested 18's for a <30 % change for in cabin volume.

XwChriswX · 11-29-2012, 02:16 AM

Quote:

Originally Posted by FPenvy

There's such a thing? Lol

Yes there is. Since you're Non-Res it's not as pronounced as those with resonators. But the glass packs do "settle" as you put more miles on it, and the tone changes.

Quote:

Originally Posted by agrotech

You should actually have an increase in low and mid tq/hp. Put it on a dyno.. another question... did you take a baseline dyno before you installed the CBE?

As with any mod, when you bolt it on, your ECU will compensate for the new airflows. A drop in the low end has been noticed on some occasions, and especially with the LTH's. A tune will level these airflows out and regain the losses. Also, I've noticed the problem is seen more with the 7ATs vs 6MTs.

henryy370z · 11-29-2012, 03:19 PM

Quote:

Originally Posted by axmea?

Yes, this is the combination that I have. Glad I got the HFC. I figured, he's already going to work on it anyway, why not throw that in. I get the thumbs up at stop lights and when simply driving by at cruising speed.

Tone - Low tone growl at lower rpms, sexy burbling sound between 3k to 4k, roars when you floor it. Best way to describe it -- exotic or excitingly unique. Love this exhaust.

Volume - it is loud when you gun it, loud when down shift at midrange, loud when your at 60-70 mph at 2.5 to 3k rpm at 6 gear, down shift to 5th and she sings with an excitingly unique roar. Shift to 4th and your ears asks for more. It is loud when your next to bus, loud when your next to semi, and loud next to a Porsche. It is loud when you're under a bridge, even louder in a tunnel, which by the way is fun times when you down shift. It is loud when Synchro Rev Match kicks in on the downshift. FI + SRM + Tunnel =

This said, what do think would it be like in the cabin? Take a wild guess. Tony suggested 18's for a <30 % change for in cabin volume.

Wow this is awesome I'm Deff getting res hfc with my cf cbe non res, I was gonna get long tube headers but that's way to loud I heard so idk I'm debating

jlo370z · 11-29-2012, 09:01 PM

Quote:

Originally Posted by axmea?

Volume - it is loud when you gun it, down shift,cruise at 60-70 mph, It is loud when your next to bus, loud when your next to semi, and loud next to a Porsche. It is loud when you're under a bridge, even louder in a tunnel, It is loud when Synchro Rev Match kicks in on the downshift

So would you say its loud?

jburke26 · 11-30-2012, 12:05 PM

Do most of you guys install the exhaust your self? I have a few local muffler shops here in town but i am not sure if i feel good about them working on my Z. If i had a proper lift i wouldn't mind doing it myself.

FPenvy · 11-30-2012, 12:06 PM

Quote:

Originally Posted by jburke26

Do most of you guys install the exhaust your self? I have a few local muffler shops here in town but i am not sure if i feel good about them working on my Z. If i had a proper lift i wouldn't mind doing it myself.

i did my own on a lift at a friends shop.

bdub561 · 11-30-2012, 12:57 PM

Quote:

Originally Posted by jburke26

Do most of you guys install the exhaust your self? I have a few local muffler shops here in town but i am not sure if i feel good about them working on my Z. If i had a proper lift i wouldn't mind doing it myself.

Ive done all my work with jackstands. Ill also be doing the exhaust when it comes. Couple weeks left

And Tony, I sent you an email a couple days ago!

speedfreek · 11-30-2012, 01:32 PM

Oh yea well I like the exhaust so much I ordered another one just to have in a box.

I kid I kid. But on this second exhuast it has me wondering if I should upgrade to CF cans. I do love those shiny cans though.

mdxj · 11-30-2012, 02:21 PM

Edit: got it installed today. I hate doing exhaust so I took it to a local shop where it was done is under 2hrs. $80 well spent and he did a great job. Love the sound and the wait was more then worth it.

henryy370z · 12-02-2012, 08:58 PM

what number are we in

bdub561 · 12-03-2012, 08:29 PM

Tony's the man! Just thought I'd let everyone know

Oh, and im in my ship window! Should be soon

kfull · 12-04-2012, 10:55 AM

Are there any durability differences between stainless steel and carbon fiber as far as like denting/corrosion/anything else? I think if I end up ordering I'd go carbon fiber. Also if anyone has a pic of a gun metallic z with carbon fiber installed I'd love to see it

FPenvy · 12-04-2012, 10:57 AM

Quote:

Originally Posted by kfull

Are there any durability differences between stainless steel and carbon fiber as far as like denting/corrosion/anything else? I think if I end up ordering I'd go carbon fiber.

I cant speak on behalf of the SS but my CF cans are still looking great after 13k miles with them on. my only "blemish" is a very small nick on the drive can from where a rock hit the edge of it. i only saw it because i was under it cleaning up the cans lol

11-30-2012, 01:32 PM	#1210 (permalink)
speedfreek A True Z Fanatic Join Date: Feb 2012 Location: Huntsville,AL Posts: 1,724 Drives: '12 370Z PW 6sp Rep Power: 18	Oh yea well I like the exhaust so much I ordered another one just to have in a box. I kid I kid. But on this second exhuast it has me wondering if I should upgrade to CF cans. I do love those shiny cans though. __________________ Tomei\|Berk\|Takeda\|ZSpeed\|Fortune Auto\|Swift\|Eibach\|SPL\|Carbotech\|Motul\|Powertrix\|Stillen\|Aerojacket\|Z1\|Forgestar\|Enkei\|Project Kics\|Nismo Ti\|Llumar speedfreek's journal

11-30-2012, 02:21 PM	#1211 (permalink)
mdxj Enthusiast Member Join Date: Nov 2011 Location: OKC Posts: 290 Drives: 09 Nismo, 98 Jeep XJ Rep Power: 14	Edit: got it installed today. I hate doing exhaust so I took it to a local shop where it was done is under 2hrs. $80 well spent and he did a great job. Love the sound and the wait was more then worth it. EverGreatest likes this. __________________ '09 370 base - RIP '09 370 Nismo - New track car Last edited by mdxj; 11-30-2012 at 05:31 PM.

12-03-2012, 08:29 PM	#1213 (permalink)
bdub561 Base Member Join Date: Jul 2012 Location: Wellington, FL Age: 37 Posts: 239 Drives: '12 370z Rep Power: 13	Tony's the man! Just thought I'd let everyone know Oh, and im in my ship window! Should be soon __________________ ( Click to show/hide ) \|1990 240sx\|SR20det\| \|2012 370z\|Berk HFC\|H&R Drop\|SPC\|20/25\|F.I TDX 12" Res.\|

12-04-2012, 10:55 AM	#1214 (permalink)
kfull Track Member Join Date: Mar 2012 Location: Massachusetts Posts: 909 Drives: A lot Rep Power: 14	Are there any durability differences between stainless steel and carbon fiber as far as like denting/corrosion/anything else? I think if I end up ordering I'd go carbon fiber. Also if anyone has a pic of a gun metallic z with carbon fiber installed I'd love to see it Last edited by kfull; 12-04-2012 at 11:04 AM.

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11-30-2012, 12:05 PM	#1207 (permalink)
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