Twin Turbo vs. Single Turbo V6: A Dissertation

Kingbaby · 01-16-2012, 07:00 PM

So twin turbos are always better? Is that what your ultimately saying?

Thank you for the information, and sorry if my question makes you pass judgment on another companies product.

Mike@GTM · 01-16-2012, 07:21 PM

Quote:

Originally Posted by Kingbaby

So twin turbos are always better? Is that what your ultimately saying?

Thank you for the information, and sorry if my question makes you pass judgment on another companies product.

I am saying that twin turbos have excellent response thanks to their proximity to the enthalpy source.

I'm sorry if you are looking for something that isn't there.

Kingbaby · 01-16-2012, 07:53 PM

Quote:

Originally Posted by Mike@GTM

I am saying that twin turbos have excellent response thanks to their proximity to the enthalpy source.

I'm sorry if you are looking for something that isn't there.

Your mistaken, I'll rephrase. Simply asking what you thought of their setup. If stressing the "IF" you did a single setup yourself on the HR/VHR how would you go about it. You can pm seeing this may be off topic.

Mike@GTM · 01-16-2012, 08:10 PM

Quote:

Originally Posted by Kingbaby

Your mistaken, I'll rephrase. Simply asking what you thought of their setup. If stressing the "IF" you did a single setup yourself on the HR/VHR how would you go about it. You can pm seeing this may be off topic.

To be honest with you, I would do something similar to what JTran Studios did. Maybe a different turbo choice and intake piping, but overall, very similar. The schedule 10 piping on the exhaust piping was a good call on their part...that and the fact that the piping is equal length so that the turbo receives evenly spaced pulses. The car clearly makes good power. It's just a little late spooling for my personal taste...but that's part of the trade off.

Because I like quick response though, I'd do twins all day, every day. I'm a bit impatient when it comes to getting that kick in the pants feeling from a turbo...I want it right now and for it to pull for days...from 3k to redline. Hell, I don't let my Subie drop below 3k rpms unless I'm stopped at a light.

blackonorange · 01-16-2012, 07:28 PM

The reason tower made less I would assume is the auto tranny , chinook I think made 470 on 7 psi as well correct me if I'm wrong , another factor is tower left his stock cats in

blackonorange · 01-16-2012, 07:39 PM

Sorry chinook made 452 on 7psi

blackonorange · 01-16-2012, 08:04 PM

Tower the cost in a Tt setup is on the install time as well

Kingbaby · 01-16-2012, 08:24 PM

Thankyou Mike!

Cell · 01-16-2012, 10:44 PM

I believe the first 370z to get an STS kit also had long tube headers. I mentioned about this a while back in the STS post. I guess it was ignored.

So most of the guys that are making more power with the sts kit are running HFC/test pipes and LTH.

tower74 · 01-16-2012, 11:00 PM

Quote:

Originally Posted by Cell

I believe the first 370z to get an STS kit also had long tube headers. I mentioned about this a while back in the STS post. I guess it was ignored.

So most of the guys that are making more power with the sts kit are running HFC/test pipes and LTH.

Good to know...

blackonorange · 01-17-2012, 10:10 AM

Quote:

Originally Posted by Cell

I believe the first 370z to get an STS kit also had long tube headers. I mentioned about this a while back in the STS post. I guess it was ignored.

So most of the guys that are making more power with the sts kit are running HFC/test pipes and LTH.

I know I noticed that as well, they make quite a difference and that would solve the cat breaking apart "issue" as well ......

O&G · 01-16-2012, 11:43 PM

Mike is correct, the twin set-up on our platform is superior for boost response, getting to peak boost faster and hopefully staying there throughout the rev range. Heat is essential for getting proper spool @ the turbo which is another win for a twin system, the turbos are right there. On my build we chose to use wrap and good piping to keep the heat temps up as much as possible in and around the turbo. I've learned a lot about both systems on the VQ platform over the years, for example if we would have run two smaller diameter pipes into a divided T-Flange @ the turbo we would have increased spool up time significantly and the next kit we design will incorporate that change. We also designed the system to be as A-semetrical as possible, keep everything even. Bottom line is price is the biggest attraction the single system has over the twin, I'm not going to sit here and say the single is better, even if I have one. I've had both and I loved them both equally. Like I've said numerous times GTM makes a quality part and you can't go wrong doing business w/ them. I just love turbos.... 2, 1 doesn't matter as long as it isn't a supercharger

I plan on donking Ron's TT Nismo stg II after he's done w/ the install!

Keep up w/ all the great info, I <3 LuRNenG!

Ron · 01-17-2012, 09:31 AM

Quote:

Originally Posted by Cell

I believe the first 370z to get an STS kit also had long tube headers. I mentioned about this a while back in the STS post. I guess it was ignored.
...

Yes I mentioned that too and got ignored, he had some other stuff too. STS is just not worth it to me. Jtran's single is far superior IMO

Quote:

Originally Posted by O&G

Mike is correct, the twin set-up on our platform is superior for boost response, getting to peak boost faster and hopefully staying there throughout the rev range. Heat is essential for getting proper spool @ the turbo which is another win for a twin system, the turbos are right there. On my build we chose to use wrap and good piping to keep the heat temps up as much as possible in and around the turbo. I've learned a lot about both systems on the VQ platform over the years, for example if we would have run two smaller diameter pipes into a divided T-Flange @ the turbo we would have increased spool up time significantly and the next kit we design will incorporate that change. We also designed the system to be as A-semetrical as possible, keep everything even. Bottom line is price is the biggest attraction the single system has over the twin, I'm not going to sit here and say the single is better, even if I have one. I've had both and I loved them both equally. Like I've said numerous times GTM makes a quality part and you can't go wrong doing business w/ them. I just love turbos.... 2, 1 doesn't matter as long as it isn't a supercharger

I plan on donking Ron's TT Nismo stg II after he's done w/ the install!

Keep up w/ all the great info, I <3 LuRNenG!

O&G · 01-17-2012, 11:41 AM

Quote:

Originally Posted by Ron

Yes I mentioned that too and got ignored, he had some other stuff too. STS is just not worth it to me. Jtran's single is far superior IMO

ROFL, glad your back homie! Get that 3' exhaust in ASAP!

car8oy281 · 01-17-2012, 03:31 PM

someone had mentioned s and r and there 5xx whp at 9 psi. there type of Dyno reads pretty high. a stock ctsv SC on that type of Dyno makes right at 525 whp. on our Dyno the same vehicle only makes right at 415 to 418 whp

Sent from my LG-P999 using Tapatalk

01-16-2012, 10:44 PM	#9 (permalink)
Cell A True Z Fanatic Join Date: Jan 2010 Location: Chicago Posts: 1,449 Drives: A Garbage Truck Rep Power: 22	I believe the first 370z to get an STS kit also had long tube headers. I mentioned about this a while back in the STS post. I guess it was ignored. So most of the guys that are making more power with the sts kit are running HFC/test pipes and LTH. Last edited by Cell; 01-16-2012 at 10:49 PM.

01-16-2012, 11:43 PM	#12 (permalink)
O&G A True Z Fanatic Join Date: Nov 2010 Location: Lone Star State Age: 42 Posts: 1,212 Drives: 40th Anv. Rep Power: 23	Mike is correct, the twin set-up on our platform is superior for boost response, getting to peak boost faster and hopefully staying there throughout the rev range. Heat is essential for getting proper spool @ the turbo which is another win for a twin system, the turbos are right there. On my build we chose to use wrap and good piping to keep the heat temps up as much as possible in and around the turbo. I've learned a lot about both systems on the VQ platform over the years, for example if we would have run two smaller diameter pipes into a divided T-Flange @ the turbo we would have increased spool up time significantly and the next kit we design will incorporate that change. We also designed the system to be as A-semetrical as possible, keep everything even. Bottom line is price is the biggest attraction the single system has over the twin, I'm not going to sit here and say the single is better, even if I have one. I've had both and I loved them both equally. Like I've said numerous times GTM makes a quality part and you can't go wrong doing business w/ them. I just love turbos.... 2, 1 doesn't matter as long as it isn't a supercharger I plan on donking Ron's TT Nismo stg II after he's done w/ the install! Keep up w/ all the great info, I <3 LuRNenG! FQ-300 likes this. __________________ O&G's Build/Journal <---(1st lowmount single turbo treeseventy) Built Engine Thread 2011 F-250 Build/Journal

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01-16-2012, 07:28 PM	#5 (permalink)
blackonorange A True Z Fanatic Join Date: Jul 2011 Location: Saskatchewan Posts: 1,078 Drives: 09 370z Rep Power: 16	The reason tower made less I would assume is the auto tranny , chinook I think made 470 on 7 psi as well correct me if I'm wrong , another factor is tower left his stock cats in

01-16-2012, 07:39 PM	#6 (permalink)
blackonorange A True Z Fanatic Join Date: Jul 2011 Location: Saskatchewan Posts: 1,078 Drives: 09 370z Rep Power: 16	Sorry chinook made 452 on 7psi

01-16-2012, 08:04 PM	#7 (permalink)
blackonorange A True Z Fanatic Join Date: Jul 2011 Location: Saskatchewan Posts: 1,078 Drives: 09 370z Rep Power: 16	Tower the cost in a Tt setup is on the install time as well

01-17-2012, 03:31 PM	#15 (permalink)
car8oy281 Base Member Join Date: May 2011 Location: Houston Texas Posts: 37 Drives: 2005 nissan 350Z Rep Power: 15	someone had mentioned s and r and there 5xx whp at 9 psi. there type of Dyno reads pretty high. a stock ctsv SC on that type of Dyno makes right at 525 whp. on our Dyno the same vehicle only makes right at 415 to 418 whp Sent from my LG-P999 using Tapatalk