Nissan 370Z Forum
Page 5 of 6 « First 34 5 6
Show 40 post(s) from this thread on one page

Nissan 370Z Forum (http://www.the370z.com/)
-   Intake/Exhaust (http://www.the370z.com/intake-exhaust/)
-   -   ERZ Performance High Flow Cats, Install and Review Thread (http://www.the370z.com/intake-exhaust/13285-erz-performance-high-flow-cats-install-review-thread.html)

kielbasa16 06-11-2010 12:07 PM
Thats a question for somebody more mechanically knowledgeable than I, but in my opinion no. The outside is sealed off perfectly with the welding so I dont know how it could leak. Anyone?

spearfish25 06-18-2010 03:56 PM
Quote:
Originally Posted by kielbasa16 (Post 572584)
I am going to do a baseline dyno tomorrow morning, try to do the install during the day, then go back for a second dyno run. These will be installed together so it wont show results for purely the HFCs. Thank you to ERZ for the order and quick shipping, I am not an upset customer at all, at the end of the day its about performance for me.
Any results? I'm curious to see what your dynos showed.

efuseakay 06-18-2010 05:54 PM
Quote:
Originally Posted by kielbasa16 (Post 572584)
Received my ERZ HFCs on Thursday along with my Fast Intentions CBE. I am really excited to get these two pieces installed as my first performance modification.

I want to note that thought I felt like a boy on Christmas, I was not completely impressed with the cats from a visual inspection. The inner tubing does not meet flush with the flange area like many have noted. From the outside it looks fine, but a little disappointing to see that even after the issue had been raised with ERZ in the past. Maybe its an unfair comparison because I had my shiny out-the-box FI exhaust from Tony sitting right there next to it with its perfectly smooth welding. I also have to note the FI was packaged with much more care.

Anyway! I am going to do a baseline dyno tomorrow morning, try to do the install during the day, then go back for a second dyno run. These will be installed together so it wont show results for purely the HFCs. Thank you to ERZ for the order and quick shipping, I am not an upset customer at all, at the end of the day its about performance for me.
Yeah, if they perform well, and there are no issues, you're good to go really... it's not like you will be staring at the insides of the HFCs all the time...

A CBE is a completely different story... FI ftw! :D

kielbasa16 06-21-2010 11:29 AM
Quote:
Originally Posted by spearfish25 (Post 583643)
Any results? I'm curious to see what your dynos showed.
World Cup has had me so preoccupied at work (along with actual work) that I havent been on the forum at all lately. I got my baseline dyno in which yielded about 270HP and 235TQ - Which I believe is basically normal. When preparing for the install my father suggested a long-term solution of building a pit in our garage instead of jacking the car up. The pit will be done this week.

So in short, I have not done the installation yet and of course no after dyno. I am also away this weekend, I apologize for the delay, but it probably wont happen till the following weekend. As previously promised I will post with all my results once I get them, dyno sheets, vids and pics.

spearfish25 06-21-2010 05:21 PM
Just heard from a guy with a FI exhaust who crushed one of his CF mufflers after going over a dip. FI isn't as perfect as some make them out to be!

wishihadnav 06-21-2010 05:26 PM
^^im not surprised..they do sit low..that's why i prefer a stacked option..

tjlazer 07-27-2010 06:49 PM
I just got my ERZ HFC's yesterday! Hope to install them tomorrow! Wish me luck with the demon bolt!

Zsteve 07-27-2010 09:02 PM
Quote:
Originally Posted by spearfish25 (Post 587197)
Just heard from a guy with a FI exhaust who crushed one of his CF mufflers after going over a dip. FI isn't as perfect as some make them out to be!
I have never scraped my FI CBE and I go over speed bumps and all. If a dip crushed his exhaust he was speeding and that caused it. Normal driving over bumps and dips wont scrap, atleast from my experience and I dont do the low rider 1/2 a mile an hour when going over bumps or dips. To scrap the FI CBE the driver has to being doing something wrong. Ive scarped my front end before but not the exhaust.

new370 07-27-2010 09:46 PM
i have never scraped my FI CBE and i hit a 6inch deep pothole today doing about 20mph and my exhaust was fine

tjlazer 07-29-2010 11:11 AM
Installed my ERZ HFC's yesterday! The demon bolt was HELL. Had to rip off the stock cat to be able to break the bolt to remove. In the end I won. Took me like 4 hours! ERZ HFCs are nice and no CEL yet. Extended bung was worthless as the O2 sensor would not install.

ERZperformance 08-02-2010 04:10 AM
Quote:
Originally Posted by tjlazer (Post 650586)
Installed my ERZ HFC's yesterday! The demon bolt was HELL. Had to rip off the stock cat to be able to break the bolt to remove. In the end I won. Took me like 4 hours! ERZ HFCs are nice and no CEL yet. Extended bung was worthless as the O2 sensor would not install.
I might have ship you the wrong size extended bung, if you do get Cel let me know I'll ship you the correct one.

thanks

ERZperformance 09-07-2010 08:12 PM
ERZ / CNT High flow cats are back in stock pm me for best price.

PR370z 10-25-2010 04:52 PM
Pulled the trigger today and got ERZ/CNT HFC's, the communication with Thomas (ERZ performance) was great and the price was great. Will let you guys know my opinion after I install them. How much of a HP increase should I expect with the stock exhaust? Also considering CNT CBE when it is available.

chops 11-24-2010 11:59 PM
i finally got mine installed on my stock nismo. exhaust sounds infinitely better with a noticeable increase in volume at all RPM's. it sounds like a true CBE now. however, i have a rattle (which im assuming are the 02 bungs - ill tighten those tomorrow and report back). no CEL's after about 50miles yet. [fingers crossed]

djpathfinder 11-25-2010 12:05 AM
Quote:
Originally Posted by chops (Post 821250)
i finally got mine installed on my stock nismo. exhaust sounds infinitely better with a noticeable increase in volume at all RPM's. it sounds like a true CBE now. however, i have a rattle (which im assuming are the 02 bungs - ill tighten those tomorrow and report back). no CEL's after about 50miles yet. [fingers crossed]
Did you install HFC's too (O2 bungs)? If you only have CBE, it is highly unlikely you'll get a CEL.

chops 11-25-2010 10:56 AM
Quote:
Originally Posted by djpathfinder (Post 821258)
Did you install HFC's too (O2 bungs)? If you only have CBE, it is highly unlikely you'll get a CEL.
sorry, i have a stock nismo with newly added erz hfc's now. exhaust sounds awesome! i think i may have forgotten to tighten the O2 sensor's so thats whats causing the rattle. will check it out later

djpathfinder 11-25-2010 11:18 AM
I can tell you that's exactly the cause of my initial rattling too...I have ERZ HFCs as well. The plugs are just hand-tightened when shipped, so you need to get under there and tighten them up. They will loosen quite quickly with a bit of driving otherwise, so don't wait too long to do it.

PR370z 11-26-2010 03:03 PM
My ERZ/CNT HFC's have been on for over 1k and I love them and have no issues (CEL). However did received them with one of the O2 dummy plugs missing. Got a hold of Nissan Generation and John sent me a replacement quickly. In conjunction with my Y pipe my car feels faster (butt dyno) and the sound is just right for me (not too loud but not to low).

chops 11-26-2010 10:55 PM
help! first day driving it for a lengthy period and ive noticed a rattle? i went down and tightened the extra O2 bung caps, and now the idle rattle is gone. while i was down there i knocked on the hfc's and noticed another rattle somewhere in the H-pipe. i removed the heatshield clamps, and out came a few rocks that were rattling in there. no more rattle...or so i thought

started it up and here's another rattle! see the below "video". its more like a sound clip, but theres a weird noise. ive loosened all the bolts and re-situated the gaskets, and retightened them...yet im still getting this disgusting sound! its pretty annoying and ricey sounding. could it be a leak somewhere? should i buy new gaskets?

YouTube - IMG 0347

spearfish25 11-26-2010 11:10 PM
Hard to say with my iPhone speaker but it sounds like the typical decel hiss. Is that with the engine fully warmed up? The HFCs make the decel hiss much more noticeable. Just the nature of the beast.

chops 11-26-2010 11:37 PM
Quote:
Originally Posted by spearfish25 (Post 823260)
Hard to say with my iPhone speaker but it sounds like the typical decel hiss. Is that with the engine fully warmed up? The HFCs make the decel hiss much more noticeable. Just the nature of the beast.
yes, fully warmed up engine. it just sounds nasty when you're at WOT. otherwise it sounds awesome when slowly giving it some gas

djpathfinder 11-27-2010 12:40 AM
:iagree: Yup, deceleration hiss is normal. :tup:

spearfish25 11-27-2010 07:00 AM
My HFCs had some nasty rasp for the first week or two. It settled down tremendously after a few heat cycles. Now I have a hint of rasp when listening outside the car if things are cold. On a hot exhaust, I only get compliments on the sound. Give it a little time to settle in. If it's still bad in two weeks, call ERZ and complain.

chops 11-27-2010 07:47 PM
Quote:
Originally Posted by spearfish25 (Post 823539)
My HFCs had some nasty rasp for the first week or two. It settled down tremendously after a few heat cycles. Now I have a hint of rasp when listening outside the car if things are cold. On a hot exhaust, I only get compliments on the sound. Give it a little time to settle in. If it's still bad in two weeks, call ERZ and complain.
alright...ill report back within a few weeks. if the rasp continues i will likely take them off :\

cant stand the ricey-ness when revving high

GZ3 11-27-2010 11:54 PM
any dynos on these yet?

chops 11-29-2010 06:09 PM
Quote:
Originally Posted by GZ3 (Post 824844)
any dynos on these yet?
unfortunately i dont think anyone has, yet. depending on the rasp/hissing issues im having (ie. if they go away) my next mod will be an uprev tune since im fully satisfied with the current power/sound of the nismo exhaust/ERZ hfc. will have dynos then!

on that note...i got the CEL today "service engine soon" :shakes head:

wont be home for another hour to pull the code though.

chops 01-14-2011 01:08 PM
anyone have issues with constant CEL's?

i got my first CEL a month ago - catalytic converter efficiency bank 2. ive since cleared it, stuffed in varying amounts of stainless steel wool, and no fix. if im driving in the city, it seems to hold up, but freeway driving causes the CEL to come back almost guarenteed. i keep my ODB2 reader in my glove box just to clear it...but its getting old.

djpathfinder 01-14-2011 01:14 PM
Some HFC users encounter recurring CEL b/c of the O2 sensors. In that case, you may need to get the O2 bung extenders, and then stuff steel wool in those.

kielbasa16 01-14-2011 01:15 PM
Quote:
Originally Posted by chops (Post 894897)
anyone have issues with constant CEL's?

i got my first CEL a month ago - catalytic converter efficiency bank 2. ive since cleared it, stuffed in varying amounts of stainless steel wool, and no fix. if im driving in the city, it seems to hold up, but freeway driving causes the CEL to come back almost guarenteed. i keep my ODB2 reader in my glove box just to clear it...but its getting old.
I didnt get 1 CEL for the 2k miles or so I put on the HFCs before my UpRev tune. I think, but am not sure, that the tuners do something to eliminate warning lights from the O2 sensors.

djpathfinder 01-14-2011 01:22 PM
Quote:
Originally Posted by kielbasa16 (Post 894905)
I didnt get 1 CEL for the 2k miles or so I put on the HFCs before my UpRev tune. I think, but am not sure, that the tuners do something to eliminate warning lights from the O2 sensors.
Yes, that's also another option if you're going to get a dyno tune. They basically program it so that the ECU ignores the O2 sensor input at the HFC so you won't get a CEL because of that anymore.

chops 01-16-2011 03:18 PM
interesting. guess i will be looking to get the UpRev tune as soon as i can source some HPS intake tubes. :D

unless...GTM really has that VVEL cracked

younter 01-17-2011 10:49 PM
Quote:
Originally Posted by dreamer101 (Post 899384)
Формированием положительного отношения по известные афоризмы по этому поводу восходят к президенту уже сообщили, что вы - из известного собеседнику магазина, из того, покупателем которого он является. Вы, может, и получите неожиданные выгоды, но не стоит думать покупателей с их адресами спиртными напитками, говорил: "Трудно превратить 100 долларов в 110. Всегда гораздо выше рождения или что они спра- шивают.
Происхождение фамилии воронцов
report....

GZ3 01-17-2011 11:32 PM
Quote:
Originally Posted by chops (Post 897306)
unless...GTM really has that VVEL cracked
uhh what?! Did i miss something....new developments??

christian370z 01-18-2011 12:01 AM
Quote:
Originally Posted by chops (Post 897306)
interesting. guess i will be looking to get the UpRev tune as soon as i can source some HPS intake tubes. :D

unless...GTM really has that VVEL cracked
Be warned though, that will fail you when you come up for smog eventually. The emissions test checks for sensor readiness and if a set of o2 sensors are turned off, they will fail the readiness check and you fail.

Otherwise, keep adding o2 bung extenders until you don't get the code anymore. :tup:

Xan 01-18-2011 11:46 PM
Reported

SkypeGod 01-20-2011 08:58 AM
I'm shocked
 
I have a similar situation. Can be discussed.

chops 01-20-2011 11:35 AM
Quote:
Originally Posted by christian370z (Post 899485)
Be warned though, that will fail you when you come up for smog eventually. The emissions test checks for sensor readiness and if a set of o2 sensors are turned off, they will fail the readiness check and you fail.

Otherwise, keep adding o2 bung extenders until you don't get the code anymore. :tup:
ill worry about that in 6 years (isnt it 6 years for a new vehicle in california?)

regardless..couldnt you just change the tune on the fly to the stock tune as per the UpRev allows, and hope the CEL doesnt go off during a smog?

or screw it..i know some places where i can pass smog :tiphat:

Quote:
Originally Posted by GZ3 (Post 899442)
uhh what?! Did i miss something....new developments??
yes..GTM recently stated they have "cracked" VVEL. to what extent? they havent said. i believe theres a post in the forced induction thread somewhere

efuseakay 01-20-2011 04:19 PM
9,000 miles on my ERZ HFCs. No CEL after the initial one that was due to not tightening one of the o2 sensors. :)

Kastley85891 01-20-2011 06:17 PM
These are 280 shipped now are they not? if so they really are a no brainer if you want HFC's ..
I ran there TP's a while back and had no complaints.

Montoya021 03-22-2011 02:03 PM
I just ordered mine!


All times are GMT -5. The time now is 07:41 AM.
Page 5 of 6 « First 34 5 6
Show 40 post(s) from this thread on one page

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2