WTF is this???

Osiris · 07-30-2011, 10:40 PM

Ok, i've had a few opinions as to what is flying out of my exhaust in handfuls, but i just want 100% confirmation. I have the Stillen SC, HFC, and CBE. The below is a pic of a couple of pieces of the metallic like chunks that are spewing from my exhaust pipes. I've been told it is coming from my HFC...is this true? If so, if after replacing my HFC, will the pieces that are still sitting in my muffler damage it in any way?

Trips · 07-30-2011, 10:43 PM

You just lost the hfc's!!

time to replace them before they clog up the mufflers.

muffler damage depends how much has been blown out.

Baer383 · 07-30-2011, 10:46 PM

Quote:

Originally Posted by Triple's

You just lost the hfc's!!

looks just like the honey comb inside the cats.

definitionxmk · 07-30-2011, 11:03 PM

wait... i don't see honeycombs out of that photo x_x

but yeah, if it is... def need to change em' cats! Meow!

SPOHN · 07-30-2011, 11:04 PM

Test pipes FTW. Seem to be seeing more of this coming from HFC's.

Osiris · 07-30-2011, 11:04 PM

argh, that's what i thought. Time to replace them i guess...anything but Stillen.

SPOHN · 07-30-2011, 11:04 PM

Quote:

Originally Posted by Osiris

argh, that's what i thought. Time to replace them i guess...anything but Stillen.

Stillen isn't the only one.

FL 4Motion · 07-31-2011, 12:51 AM

Quote:

Originally Posted by Osiris

argh, that's what i thought. Time to replace them i guess...anything but Stillen.

damn man, sorry to hear. If it were me, I'd just opt for test pipes so as not to have a worry anymore. If you want to stick w/HFC's there's berk and F.I. etc that would be a good alternative the stillen's.

Of course, if you do decide on TP's, you may need to tqueak your tune again...

christian370z · 07-31-2011, 01:27 AM

For forced induction applications, it is very important to use a catalytic converter with a metallic core instead of a ceramic core as a metal core withstands much more abuse and will not fragment upon failure.

Unfortunately, I have yet to see a HFC offered for the Z that has a metallic core, all of them are ceramic and will blow out with the higher EGTs of FI.

roplusbee · 07-31-2011, 08:25 AM

Ouch.............

Osiris · 07-31-2011, 10:07 AM

Quote:

Originally Posted by christian370z

For forced induction applications, it is very important to use a catalytic converter with a metallic core instead of a ceramic core as a metal core withstands much more abuse and will not fragment upon failure.

Unfortunately, I have yet to see a HFC offered for the Z that has a metallic core, all of them are ceramic and will blow out with the higher EGTs of FI.

well, these pieces that are coming out are metallic...doesn't that mean it's a metallic core?

Also, i have a friend that has a pair of test pipes that he isn't currently using. So since i have FI, will it be a problem if i don't get it tuned right away?

NeverBoneStck · 07-31-2011, 11:59 AM

Quote:

Originally Posted by christian370z

For forced induction applications, it is very important to use a catalytic converter with a metallic core instead of a ceramic core as a metal core withstands much more abuse and will not fragment upon failure.

Unfortunately, I have yet to see a HFC offered for the Z that has a metallic core, all of them are ceramic and will blow out with the higher EGTs of FI.

Almost every hfc offered for the z has a metallic core ..

NeverBoneStck · 07-31-2011, 12:00 PM

Quote:

Originally Posted by Osiris

well, these pieces that are coming out are metallic...doesn't that mean it's a metallic core?

Also, i have a friend that has a pair of test pipes that he isn't currently using. So since i have FI, will it be a problem if i don't get it tuned right away?

Save your money and get the art pipes. Test pipes with a supercharger is going to sound like $hit ..

Osiris · 07-31-2011, 12:03 PM

Quote:

Originally Posted by NeverBoneStck

Save your money and get the art pipes. Test pipes with a supercharger is going to sound like $hit ..

i have to put something on there...can't leave these HFC's on there to clog things up. If anything, the test pipes will be temporary.

Osiris · 07-31-2011, 03:04 PM

Quote:

Originally Posted by NeverBoneStck

Save your money and get the art pipes. Test pipes with a supercharger is going to sound like $hit ..

um, just realized, the "ART" pipes ARE test pipes. So your statement contradicts itself.

07-30-2011, 10:40 PM	#1 (permalink)
Osiris A True Z Fanatic Join Date: Mar 2009 Location: http://www.cfzclub.com/ Posts: 1,524 Drives: Angry Rep Power: 19	WTF is this??? Ok, i've had a few opinions as to what is flying out of my exhaust in handfuls, but i just want 100% confirmation. I have the Stillen SC, HFC, and CBE. The below is a pic of a couple of pieces of the metallic like chunks that are spewing from my exhaust pipes. I've been told it is coming from my HFC...is this true? If so, if after replacing my HFC, will the pieces that are still sitting in my muffler damage it in any way? __________________ ^^^^^^^^^Like our Facebook!^^^^^^^^^

07-30-2011, 10:43 PM	#2 (permalink)
Trips Administrator Join Date: May 2009 Location: Disneyland, Ca Posts: 8,730 Drives: 🔰 Rep Power: 10	You just lost the hfc's!! time to replace them before they clog up the mufflers. muffler damage depends how much has been blown out. __________________

07-30-2011, 11:03 PM	#4 (permalink)
definitionxmk Track Member Join Date: Jul 2009 Location: Los Angeles CA Posts: 973 Drives: Stage 2 SC 370Z Rep Power: 17	wait... i don't see honeycombs out of that photo x_x but yeah, if it is... def need to change em' cats! Meow! __________________ *FALKEN . AMUSE . STANCE . INVIDIA . MINES . TOMMY KAIRA . BRIDE . VOLK RACING . GTM* Featured in DSPORT issue #137 - Follow me on Instagram: @definitionxmk

07-30-2011, 11:04 PM	#5 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 45 Posts: 14,844 Drives: Waiting on next Z Rep Power: 221	Test pipes FTW. Seem to be seeing more of this coming from HFC's. __________________

07-30-2011, 11:04 PM	#6 (permalink)
Osiris A True Z Fanatic Join Date: Mar 2009 Location: http://www.cfzclub.com/ Posts: 1,524 Drives: Angry Rep Power: 19	argh, that's what i thought. Time to replace them i guess...anything but Stillen. __________________ ^^^^^^^^^Like our Facebook!^^^^^^^^^

07-31-2011, 01:27 AM	#9 (permalink)
christian370z A True Z Fanatic Join Date: Jul 2010 Location: Newport Beach Posts: 3,900 Drives: 2010 370Z/Saab 900se Rep Power: 432	For forced induction applications, it is very important to use a catalytic converter with a metallic core instead of a ceramic core as a metal core withstands much more abuse and will not fragment upon failure. Unfortunately, I have yet to see a HFC offered for the Z that has a metallic core, all of them are ceramic and will blow out with the higher EGTs of FI. __________________ -320whp / 259wftlbs- SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob

07-31-2011, 08:25 AM	#10 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 22	Ouch............. __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL