Fast Intentions exhaust is here! (continued)

FPenvy · 11-28-2012, 10:25 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.

I have a 7AT as well and that rpm drop you talk of I never noticed. I'm actually gonna play with mine tomorrow to see if I see the same. It may not be an exhaust issue but maybe tranny issue.

I have almost 14k miles on my FI exhaust and I don't feel I loss any torque and any end of the spectrum. If low end torque was lost I highly doubt it to where as with VDC off I can spin tire with the 7AT just by slamming the gas and not even holding any brake. Even when I am at the drag strip I spin off the line with added traction that is sprayed on the track and then chirp at 2nd and then I'm gone lol

Regardless to my personal experience I will play around with rpm drop that you are having tomorrow maybe even take some vids since I sit in traffic to and from work and typically have a little fun to occupy my time anyways lol

FPenvy · 11-28-2012, 10:26 PM

Quote:

Originally Posted by G37sHKS

fiber glass break in

There's such a thing? Lol

FPenvy · 11-28-2012, 10:53 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

mdxj · 11-30-2012, 01:21 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, 07:58 PM

what number are we in

bdub561 · 12-03-2012, 07:29 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, 09:55 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, 09:57 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

dmhenderson · 12-04-2012, 01:50 PM

She's under the knife right now. Shop says they had problems getting the stock cats off but managed to do so without stripping either O2 sensor. Should be put back together in about 30 minutes and then I get to watch the tuning process

Sent from my iPhone using Tapatalk

FPenvy · 12-04-2012, 01:52 PM

Quote:

Originally Posted by dmhenderson

She's under the knife right now. Shop says they had problems getting the stock cats off but managed to do so without stripping either O2 sensor. Should be put back together in about 30 minutes and then I get to watch the tuning process

Sent from my iPhone using Tapatalk

stock cats are a pain to get off. it's the demon bolts that cause the problem with those.

dmhenderson · 12-04-2012, 08:33 PM

Back from the install and tune and holy crap is this thing loud. I uploaded one of the 182318238132 dyno pulls onto youtube and I'm waiting for it to appear so I can post it here. Watching it on the video doesn't really give you a good idea of how freaking loud it was in that garage. I have a splitting headache but it was totally worth it.

dmhenderson · 12-05-2012, 06:46 AM

Here you go. Again, doesn't really do the sheer volume justice but yeah, it's loud.

Edit: No idea why youtube embedding is broken but it's here:

http://youtu.be/Esj-BqUobxU

dmhenderson · 12-05-2012, 06:50 AM

KingJoseph · 12-05-2012, 07:47 AM

DM, is that dyno sheet just for the addition of the exhaust or also for HFCs? Do you have CF or SS? What length resonators (if any)?

XwChriswX · 12-05-2012, 10:17 AM

Quote:

Originally Posted by dmhenderson

Good numbers.

11-30-2012, 01:21 PM	#4 (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 04:31 PM.

12-03-2012, 07:29 PM	#6 (permalink)
bdub561 Base Member Join Date: Jul 2012 Location: Wellington, FL Age: 38 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, 09:55 AM	#7 (permalink)
kfull Track Member Join Date: Mar 2012 Location: Massachusetts Posts: 909 Drives: A lot Rep Power: 15	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 10:04 AM.

12-04-2012, 01:50 PM	#9 (permalink)
dmhenderson A True Z Fanatic Join Date: Feb 2011 Location: Maryland Posts: 5,930 Drives: AWD TT 370z Rep Power: 27	She's under the knife right now. Shop says they had problems getting the stock cats off but managed to do so without stripping either O2 sensor. Should be put back together in about 30 minutes and then I get to watch the tuning process Sent from my iPhone using Tapatalk __________________

12-04-2012, 08:33 PM	#11 (permalink)
dmhenderson A True Z Fanatic Join Date: Feb 2011 Location: Maryland Posts: 5,930 Drives: AWD TT 370z Rep Power: 27	Back from the install and tune and holy crap is this thing loud. I uploaded one of the 182318238132 dyno pulls onto youtube and I'm waiting for it to appear so I can post it here. Watching it on the video doesn't really give you a good idea of how freaking loud it was in that garage. I have a splitting headache but it was totally worth it. __________________

12-02-2012, 07:58 PM	#5 (permalink)
henryy370z Enthusiast Member Join Date: May 2012 Location: nj bergen county Age: 32 Posts: 380 Drives: 2011-black-manual Rep Power: 13	what number are we in

12-05-2012, 06:46 AM	#12 (permalink)
dmhenderson A True Z Fanatic Join Date: Feb 2011 Location: Maryland Posts: 5,930 Drives: AWD TT 370z Rep Power: 27	Here you go. Again, doesn't really do the sheer volume justice but yeah, it's loud. Edit: No idea why youtube embedding is broken but it's here: http://youtu.be/Esj-BqUobxU __________________ Last edited by dmhenderson; 12-05-2012 at 07:01 AM.

12-05-2012, 06:50 AM	#13 (permalink)
dmhenderson A True Z Fanatic Join Date: Feb 2011 Location: Maryland Posts: 5,930 Drives: AWD TT 370z Rep Power: 27	__________________

12-05-2012, 07:47 AM	#14 (permalink)
KingJoseph Base Member Join Date: Jun 2012 Location: Redmond, WA Posts: 180 Drives: 2012 Nismo 370Z Rep Power: 13	DM, is that dyno sheet just for the addition of the exhaust or also for HFCs? Do you have CF or SS? What length resonators (if any)?

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