Twin scroll vs twin turbo

SS_Firehawk · 10-29-2012, 10:08 AM

Yes, but with something that's already been tested and documented, it reduces the risk.

SS_Firehawk · 10-29-2012, 11:11 AM

And this is why this forum rocks. Thanks for the insight.

Something that's very important but often overlooked when talking about headers, is it's actual length and if they are tuned to the rpm of the motor. The longer the exhaust header, the greater the low end torque, but at the cost of high rpm power because it loses efficiency. This also implies that the shorter they are, the more efficient at high rpm, but at a loss of low end tq. The diameter of the pipe will also affect the low end if they are too large. The PPE's I have are stepped 1 7/8" to 1 3/4" and back to 1 7/8". The merge collector is at a shorter distance to the motor than F.I's. PPE says they are tuned headers, so I'm assuming they put the collector there for a reason, ran the rest at 2.5" to the Y pipe.

theaudir8fan · 10-29-2012, 05:15 PM

Dustin, thanks for the response, at the end of the day cost is the most important determining factor for business and buyers

10-29-2012, 10:08 AM	#1 (permalink)
SS_Firehawk A True Z Fanatic Join Date: Oct 2011 Location: Tampa Posts: 4,142 Drives: 13' Magma Red Nismo Rep Power: 7336	Yes, but with something that's already been tested and documented, it reduces the risk. __________________ Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI New Car: Under Construction

10-29-2012, 11:11 AM	#2 (permalink)
SS_Firehawk A True Z Fanatic Join Date: Oct 2011 Location: Tampa Posts: 4,142 Drives: 13' Magma Red Nismo Rep Power: 7336	And this is why this forum rocks. Thanks for the insight. Something that's very important but often overlooked when talking about headers, is it's actual length and if they are tuned to the rpm of the motor. The longer the exhaust header, the greater the low end torque, but at the cost of high rpm power because it loses efficiency. This also implies that the shorter they are, the more efficient at high rpm, but at a loss of low end tq. The diameter of the pipe will also affect the low end if they are too large. The PPE's I have are stepped 1 7/8" to 1 3/4" and back to 1 7/8". The merge collector is at a shorter distance to the motor than F.I's. PPE says they are tuned headers, so I'm assuming they put the collector there for a reason, ran the rest at 2.5" to the Y pipe. __________________ Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI New Car: Under Construction

10-29-2012, 05:15 PM	#3 (permalink)
theaudir8fan Base Member Join Date: Jul 2011 Location: lonely land up north Posts: 162 Drives: 07 Infiniti G35S PG Rep Power: 15	Dustin, thanks for the response, at the end of the day cost is the most important determining factor for business and buyers __________________ 2007 Infiniti G35S 5AT PG; GTM; KW; Hotchkis; Stillen; Berks; SPC; GT-spec; SxExCx

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Twin Turbo vs. Single Turbo V6: A Dissertation	Mike@GTM	Forced Induction	115	08-14-2014 09:04 PM
Twin Turbo G37	Anthony@PM	Forced Induction	11	10-18-2011 06:45 PM
GTM Motorsports Twin Turbo vs Greddy Twin Turbo Kit	Nismo221	Forced Induction	57	08-16-2011 04:44 PM
[FOR SALE] TW/FS: GTM Twin Turbo Kit Stg II	andrewkd16	Parts for sale (Private Classifieds)	36	05-18-2011 09:48 AM
Gtm 500 hp twin turbo	JB-370z	Forced Induction	26	05-17-2010 10:08 PM