HFC loose metallic core

mag_black · 06-11-2013, 12:47 PM

I bought some used HFC's from a member here. I noticed while cleaning them that the core slides around. It's not much because of the core diameter being larger than the piping. If I had to guess it's about 1/8" of movement at most.

I'm more concerned about the friction caused from the metal to metal sliding and perhaps causing wear, eventually giving it more room to be banged around while driving.

Sh0velMan · 06-11-2013, 01:03 PM

Definitely not normal.

Chuck33079 · 06-11-2013, 01:10 PM

I wouldn't use it.

mag_black · 06-11-2013, 02:16 PM

Great, this sucks. I'm waiting to hear back from the seller and FI. Their website states it's "limited lifetime warranty", I don't know what that entails. I definitely would hate to make it FI's issue, and I am going to give the seller the benefit of the doubt.

Hopefully we can come to some resolution.

forza370z · 06-11-2013, 03:01 PM

Hmmm, this doesn't sound normal... Maybe Tony or Blake can chime in?

mag_black · 06-11-2013, 04:51 PM

I've emailed Fast Intentions yesterday to see what they would say.

Mandingo · 06-12-2013, 12:18 AM

I've been told that a small amount of core movement is normal as a it gives a buffer region for expansion/contraction. If it really is 1/8 inch though, that is definitely too much

mag_black · 06-12-2013, 12:56 AM

There's a possibility it's less than 1/8" movement; it's hard to tell. I'll try uploading the video of it tomorrow.

synolimit · 06-12-2013, 01:37 AM

It separated, it happens. All you can do is replace it with a new core. They cost about $100 in 2.5"

DEpointfive0 · 06-12-2013, 01:58 AM

Quote:

Originally Posted by synolimit

It separated, it happens. All you can do is replace it with a new core. They cost about $100 in 2.5"

Yep

Whenever I buy used cats I shake the crap out of them to see if they rattle
If they do, I ain't buying

mag_black · 06-12-2013, 12:04 PM

The seller is willing to refund, I was hoping for another alternative. Oh well...

Chuck33079 · 06-12-2013, 12:13 PM

Quote:

Originally Posted by mag_black

The seller is willing to refund, I was hoping for another alternative. Oh well...

Get your refund. With a bunch of people moving to the Z1 headers that need a 350 cat pipe, there's probably going to be more used HFCs on the market soon.

synolimit · 06-12-2013, 12:15 PM

What brand? I'd buy, remove the cats, add a resonator and be set.

Oops nvm. FI? Ill buy them for cheap since they're broke. I know you want your money back so who is the original seller? He can pay you, I'll pay him, you can ship to me instead of back to him saving on double shipping.

Chuck33079 · 06-12-2013, 12:20 PM

Yeah, you could always knock out the cats and enjoy your new test pipes. It wouldn't be too hard to do since the pipe is pretty much a straight shot all the way through.

synolimit · 06-12-2013, 12:31 PM

Quote:

Originally Posted by Chuck33079

Yeah, you could always knock out the cats and enjoy your new test pipes. It wouldn't be too hard to do since the pipe is pretty much a straight shot all the way through.

Just knocking them out I'd be worried about power loss. That's on awfully big chamber to have wide open.

06-11-2013, 12:47 PM	#1 (permalink)
mag_black A True Z Fanatic Join Date: Mar 2013 Location: Massachusetts Posts: 1,400 Drives: 09 370Z MT6 Rep Power: 666	HFC loose metallic core I bought some used HFC's from a member here. I noticed while cleaning them that the core slides around. It's not much because of the core diameter being larger than the piping. If I had to guess it's about 1/8" of movement at most. I'm more concerned about the friction caused from the metal to metal sliding and perhaps causing wear, eventually giving it more room to be banged around while driving. __________________ fujimura ≠ abbeyRoadCompany ≠ fastIntentions ≠ motordyne ≠ avantGarde ≠ ecutek ≠ nismo ≠ stillen ≠ stoptech ≠ gtm ≠ spl ≠ carbonfiberelement ≠ stance™ Last edited by mag_black; 06-11-2013 at 12:50 PM.

06-11-2013, 01:03 PM	#2 (permalink)
Sh0velMan A True Z Fanatic Join Date: Jan 2012 Location: Dallas/Ft.Worth Posts: 3,349 Drives: Noisily. Rep Power: 20	Definitely not normal. __________________ Buy My Car! \| Build Thread

06-11-2013, 01:10 PM	#3 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	I wouldn't use it. DEpointfive0 likes this. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

06-11-2013, 02:16 PM	#4 (permalink)
mag_black A True Z Fanatic Join Date: Mar 2013 Location: Massachusetts Posts: 1,400 Drives: 09 370Z MT6 Rep Power: 666	Great, this sucks. I'm waiting to hear back from the seller and FI. Their website states it's "limited lifetime warranty", I don't know what that entails. I definitely would hate to make it FI's issue, and I am going to give the seller the benefit of the doubt. Hopefully we can come to some resolution. __________________ fujimura ≠ abbeyRoadCompany ≠ fastIntentions ≠ motordyne ≠ avantGarde ≠ ecutek ≠ nismo ≠ stillen ≠ stoptech ≠ gtm ≠ spl ≠ carbonfiberelement ≠ stance™

06-11-2013, 03:01 PM	#5 (permalink)
forza370z A True Z Fanatic Join Date: Oct 2011 Location: 403 Forbidden Posts: 2,512 Drives: 2009 NISMO 370Z Rep Power: 19	Hmmm, this doesn't sound normal... Maybe Tony or Blake can chime in? __________________ 09 PW 370z Nismo \| K&N Drop Ins \| HKS Hi Power \| Berk HFCs \| Work Meister S1 3P \| Project Kics R40 Neo Chrome Lug Nuts \| KW V1 \| SPC rear camber arms/toe bolts \| Southbend Stage 3 daily clutch \| Southband 19Ib Steel Flywheel \| ZSpeed CSC

06-11-2013, 04:51 PM	#6 (permalink)
mag_black A True Z Fanatic Join Date: Mar 2013 Location: Massachusetts Posts: 1,400 Drives: 09 370Z MT6 Rep Power: 666	I've emailed Fast Intentions yesterday to see what they would say. __________________ fujimura ≠ abbeyRoadCompany ≠ fastIntentions ≠ motordyne ≠ avantGarde ≠ ecutek ≠ nismo ≠ stillen ≠ stoptech ≠ gtm ≠ spl ≠ carbonfiberelement ≠ stance™

06-12-2013, 12:18 AM	#7 (permalink)
Mandingo Track Member Join Date: Nov 2010 Location: Dallas Posts: 625 Drives: '10 370z 6spd Rep Power: 3371	I've been told that a small amount of core movement is normal as a it gives a buffer region for expansion/contraction. If it really is 1/8 inch though, that is definitely too much __________________ some mods

06-12-2013, 12:56 AM	#8 (permalink)
mag_black A True Z Fanatic Join Date: Mar 2013 Location: Massachusetts Posts: 1,400 Drives: 09 370Z MT6 Rep Power: 666	There's a possibility it's less than 1/8" movement; it's hard to tell. I'll try uploading the video of it tomorrow. __________________ fujimura ≠ abbeyRoadCompany ≠ fastIntentions ≠ motordyne ≠ avantGarde ≠ ecutek ≠ nismo ≠ stillen ≠ stoptech ≠ gtm ≠ spl ≠ carbonfiberelement ≠ stance™

06-12-2013, 01:37 AM	#9 (permalink)
synolimit A True Z Fanatic Join Date: May 2013 Location: Columbus, OH Posts: 5,051 Drives: 2013 Silver 370z Rep Power: 3389	It separated, it happens. All you can do is replace it with a new core. They cost about $100 in 2.5" DEpointfive0 likes this. __________________ 13 370z-

06-12-2013, 12:04 PM	#11 (permalink)
mag_black A True Z Fanatic Join Date: Mar 2013 Location: Massachusetts Posts: 1,400 Drives: 09 370Z MT6 Rep Power: 666	The seller is willing to refund, I was hoping for another alternative. Oh well... __________________ fujimura ≠ abbeyRoadCompany ≠ fastIntentions ≠ motordyne ≠ avantGarde ≠ ecutek ≠ nismo ≠ stillen ≠ stoptech ≠ gtm ≠ spl ≠ carbonfiberelement ≠ stance™

06-12-2013, 12:15 PM	#13 (permalink)
synolimit A True Z Fanatic Join Date: May 2013 Location: Columbus, OH Posts: 5,051 Drives: 2013 Silver 370z Rep Power: 3389	What brand? I'd buy, remove the cats, add a resonator and be set. Oops nvm. FI? Ill buy them for cheap since they're broke. I know you want your money back so who is the original seller? He can pay you, I'll pay him, you can ship to me instead of back to him saving on double shipping. __________________ 13 370z- Last edited by synolimit; 06-12-2013 at 12:21 PM.

06-12-2013, 12:20 PM	#14 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	Yeah, you could always knock out the cats and enjoy your new test pipes. It wouldn't be too hard to do since the pipe is pretty much a straight shot all the way through. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

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