GTM Performance Engineering: MHI Twin Turbo Official Release

Chuck33079 · 05-31-2013, 12:39 PM

Quote:

Originally Posted by puckshaw

That was the only thing I could think of. I believe the FI 3" exhaust which is made for turbo applications even has HFCs in it but they're much farther down stream. I guess if someone is determined/required to run cats, that would be a good option. I may go that route later down the road if my inspections don't go as planned.

I've got the catted FI 3". The cats are several feet away from the turbos. They should hold up fine.

SPOHN · 05-31-2013, 01:13 PM

Am I the only one going open dump?

Chuck33079 · 05-31-2013, 01:16 PM

Quote:

Originally Posted by SPOHN

Am I the only one going open dump?

I've done it on previous cars. It's kind of cool on a toy car. There's just no way in hell I'd run open dumps on a daily driver.

SPOHN · 05-31-2013, 02:02 PM

Quote:

Originally Posted by Chuck33079

I've done it on previous cars. It's kind of cool on a toy car. There's just no way in hell I'd run open dumps on a daily driver.

Just stay out of boost. Wait, what did I just say?

Chuck33079 · 05-31-2013, 02:46 PM

Good luck with that. I've got the small GT28s, and it spools very quickly. I'd imagine the 16gs and 18gs are even quicker.

Dzel · 05-31-2013, 06:54 PM

If I would of known that I would of just fine a custom exhaust

Sent from my SCH-I605 using Tapatalk 4 Beta

Dzel · 05-31-2013, 11:00 PM

So I did some research (talked to Mike) and high flow cats will fail and be catastrophic resonated test pipes if they fail the resonated part will just burn off over time. So in good!

Sent from my SCH-I605 using Tapatalk 4 Beta

1slow370 · 05-31-2013, 11:16 PM

stock cats = ceramic = better under high heat

high flow cats = metal foil = burned up

NitrousZ34 · 06-01-2013, 02:51 AM

Quote:

Originally Posted by SPOHN

Am I the only one going open dump?

I am too. I want that ish as loud as possible. No fûcks given by me

Dzel · 06-01-2013, 11:02 AM

That what Mike said if my TP's fail the car el get much louder like I'm running straight TP's. But it's nothing that one needs to worry about or replace!

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efuseakay · 06-01-2013, 01:37 PM

Meth injection foar UR KATZ!!!!!

MavRick · 06-01-2013, 04:22 PM

sooooo....can one use TP's for everyday use and then switch back to cats for emissions? does ATL even have a sniffer? i just moved back here so these questions keep me up at night.

Baer383 · 06-01-2013, 06:38 PM

Atlanta does have a sniffer but for what years I don't remember,your car has to be a certain amount of years old.

Cbtech · 06-01-2013, 07:35 PM

Quote:

Originally Posted by Baer383

Atlanta does have a sniffer but for what years I don't remember,your car has to be a certain amount of years old.

If they go off of Cali standards (which most states do that require a sniffer) it's after the 4th year from the date of first registration. So 5 years total when SMOG is due.

sent via my wrist watch calculator

Baer383 · 06-01-2013, 07:45 PM

Quote:

Originally Posted by Cbtech

If they go off of Cali standards (which most states do that require a sniffer) it's after the 4th year from the date of first registration. So 5 years total when SMOG is due.

sent via my wrist watch calculator

I stop being lazy and looked it up, you don't emissions on your car for the first 3 years in Atlanta.

05-31-2013, 01:13 PM	#797 (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	Am I the only one going open dump? __________________

05-31-2013, 02:46 PM	#800 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	Good luck with that. I've got the small GT28s, and it spools very quickly. I'd imagine the 16gs and 18gs are even quicker. Footloose301 likes this. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

05-31-2013, 06:54 PM	#801 (permalink)
Dzel A True Z Fanatic Join Date: May 2011 Location: Midland, TX Posts: 3,884 Drives: 11 370Z PW M6 Rep Power: 23	If I would of known that I would of just fine a custom exhaust Sent from my SCH-I605 using Tapatalk 4 Beta __________________ 10secWS6 IF YOU CAN'T SWING IT THEN DON'T BRING IT! Check out Domestic Performance C.C.

05-31-2013, 11:00 PM	#802 (permalink)
Dzel A True Z Fanatic Join Date: May 2011 Location: Midland, TX Posts: 3,884 Drives: 11 370Z PW M6 Rep Power: 23	So I did some research (talked to Mike) and high flow cats will fail and be catastrophic resonated test pipes if they fail the resonated part will just burn off over time. So in good! Sent from my SCH-I605 using Tapatalk 4 Beta __________________ 10secWS6 IF YOU CAN'T SWING IT THEN DON'T BRING IT! Check out Domestic Performance C.C.

05-31-2013, 11:16 PM	#803 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	stock cats = ceramic = better under high heat high flow cats = metal foil = burned up Footloose301 likes this. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

06-01-2013, 11:02 AM	#805 (permalink)
Dzel A True Z Fanatic Join Date: May 2011 Location: Midland, TX Posts: 3,884 Drives: 11 370Z PW M6 Rep Power: 23	That what Mike said if my TP's fail the car el get much louder like I'm running straight TP's. But it's nothing that one needs to worry about or replace! Sent from my SCH-I605 using Tapatalk 4 Beta __________________ 10secWS6 IF YOU CAN'T SWING IT THEN DON'T BRING IT! Check out Domestic Performance C.C. Last edited by Dzel; 06-01-2013 at 01:49 PM.

06-01-2013, 01:37 PM	#806 (permalink)
efuseakay Enthusiast Member Join Date: Mar 2010 Location: The DAYNGA ZONE! Posts: 404 Drives: 2010 G37xS Sedan Rep Power: 15	Meth injection foar UR KATZ!!!!!

06-01-2013, 04:22 PM	#807 (permalink)
MavRick Base Member Join Date: Feb 2013 Location: atlanta Posts: 66 Drives: 2010 Roadster 6MT Rep Power: 12	sooooo....can one use TP's for everyday use and then switch back to cats for emissions? does ATL even have a sniffer? i just moved back here so these questions keep me up at night. __________________ Miss you, Pops...

06-01-2013, 06:38 PM	#808 (permalink)
Baer383 A True Z Fanatic Join Date: Aug 2010 Location: Lawrenceville,Ga Posts: 4,293 Drives: My foot up your azz Rep Power: 30	Atlanta does have a sniffer but for what years I don't remember,your car has to be a certain amount of years old. __________________ 2013 ZL1 754 rwhp 747 rwtq

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