advice please? - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

C 8HEP · 9th August 2005, 09:05 AM

when is 1 big turbo better than two smaller ones?

nagasan · 11th August 2005, 06:46 AM

Big single turbo is a bit lagging compare to twin turbo, What type of big turbo u r looking for? Greddy T78, T88, HKS T51kai, T51R? Hw about the twin turbo that u r looking for? Twin TD05, Twin TD06, twin GT25430 , GT2540...etc? How much hp do u want?

C 8HEP · 11th August 2005, 07:38 PM

ive got garett gt62's to fit mate, with supporting mods, any good?

SteveN · 12th August 2005, 09:46 AM

nagasan- Go on, explain why 1 big one is NOTICABLY laggier than 2 smaller ones that give equal power handling and are equally modern (ie not a pair of HKS GTs versus some old Greddy Truck Turbo).

To me the difference is negligable and usually totally offset by poor (or wildly OTT) cam/head/ex housing a/r specs anyhow)

Single also cuts down on cost and maintainance too (less to break and less complex)

Anyhow there 100s of these arguments in the past if you use the SEARCH function, so lets not go there again.

C8HEP- Exactly what T62 is that?
As T62 is very vague designation, and someone else asked me about a Garrett based T62 earlier in the week...
Generally though Garrett based T62s are good for around 550-600bhp, maybe bit less, maybe bit more, depending on a/r's etc, but dont mean this exact one is any good at all, could well be an old truck turbo for all i know at mo.

C 8HEP · 12th August 2005, 02:00 PM

gt 62 is high up the range for garett. its quite big but running 2 instead of 1 does that mean better efficiency or ....?

9th August 2005, 09:05 AM	#1 (permalink)
C 8HEP GTR Register Member Join Date: Apr 2005 Posts: 56	advice please? when is 1 big turbo better than two smaller ones?

12th August 2005, 02:00 PM	#5 (permalink)
C 8HEP GTR Register Member Join Date: Apr 2005 Posts: 56	gt 62 is high up the range for garett. its quite big but running 2 instead of 1 does that mean better efficiency or ....? Last edited by C 8HEP; 12th August 2005 at 02:06 PM.

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11th August 2005, 06:46 AM	#2 (permalink)
nagasan GTR Register Member Join Date: Aug 2005 Location: Borneo island Posts: 15	Big single turbo is a bit lagging compare to twin turbo, What type of big turbo u r looking for? Greddy T78, T88, HKS T51kai, T51R? Hw about the twin turbo that u r looking for? Twin TD05, Twin TD06, twin GT25430 , GT2540...etc? How much hp do u want?

11th August 2005, 07:38 PM	#3 (permalink)
C 8HEP GTR Register Member Join Date: Apr 2005 Posts: 56	ive got garett gt62's to fit mate, with supporting mods, any good?

12th August 2005, 09:46 AM	#4 (permalink)
SteveN GTR Register Member Join Date: Aug 2002 Location: Just off the M5/A40 Posts: 7,209	nagasan- Go on, explain why 1 big one is NOTICABLY laggier than 2 smaller ones that give equal power handling and are equally modern (ie not a pair of HKS GTs versus some old Greddy Truck Turbo). To me the difference is negligable and usually totally offset by poor (or wildly OTT) cam/head/ex housing a/r specs anyhow) Single also cuts down on cost and maintainance too (less to break and less complex) Anyhow there 100s of these arguments in the past if you use the SEARCH function, so lets not go there again. C8HEP- Exactly what T62 is that? As T62 is very vague designation, and someone else asked me about a Garrett based T62 earlier in the week... Generally though Garrett based T62s are good for around 550-600bhp, maybe bit less, maybe bit more, depending on a/r's etc, but dont mean this exact one is any good at all, could well be an old truck turbo for all i know at mo.