Greddy Twin-Turbo In Development

LiquidZ · 11-01-2009, 08:17 PM

Quote:

Originally Posted by Brazilbro

im also leaning Greddy, thoses Mitsu turbos just last so long.. i went through 2 garretts in 2 yrs compared to 1 Greddy 20g that lasted 3 cars and 5yrs and could be still going for all I know.

My only concern about the 20g is that it is only oil cooled. I am wondering if it will superheat the oil on a road course seeing that its the only thing lubricating it. Any opinions?

JoeD · 11-01-2009, 10:50 PM

Quote:

Originally Posted by LiquidZ

I am wondering if it will superheat the oil on a road course seeing that its the only thing lubricating it. Any opinions?

A TT 370Z has no business on a road-course. If you are planning on attending track-events or racing competitively, stick to bolt-ons.

LiquidZ · 11-01-2009, 11:03 PM

Quote:

Originally Posted by JoeD

A TT 370Z has no business on a road-course. If you are planning on attending track-events or racing competitively, stick to bolt-ons.

I won't be racing competitively. I might attend a few track days with the family for fun, and that's it. If I were being competitive, I would definitely be running full bolt-ons. However, this is a street car that might see a track once or twice a year, so a turbo OR supercharger might still be on the table.

JoeD · 11-01-2009, 11:11 PM

Quote:

Originally Posted by LiquidZ

I won't be racing competitively. I might attend a few track days with the family for fun, and that's it. If I were being competitive, I would definitely be running full bolt-ons. However, this is a street car that might see a track once or twice a year, so a turbo OR supercharger might still be on the table.

Perhaps a track-event or two per year will be fine given you're not pushing the car to 10/10. However, exposing such a highly modified car to such levels of stress is a recipe for disaster, more often than not.

Brazilbro · 11-02-2009, 02:42 PM

Quote:

Originally Posted by JoeD

A TT 370Z has no business on a road-course. If you are planning on attending track-events or racing competitively, stick to bolt-ons.

Tell that to Forged performace

aprazma · 11-02-2009, 11:44 AM

20g is also available as water and oil cooled.

Quote:

Originally Posted by LiquidZ

My only concern about the 20g is that it is only oil cooled. I am wondering if it will superheat the oil on a road course seeing that its the only thing lubricating it. Any opinions?

Scribe · 11-02-2009, 12:26 PM

I would definitely upgrade to a large oil cooler if I was going with a turbocharger. The Z's engine compartment is a nightmare for heat management.

Heat management is a crucial and usually under-developed portion of a great turbo kit. So says Corkey Bell and my experience. A good 370Z kit is going to need GOOD heat-shields, wraps, covers, etc. And you are going to want to get more air through the engine bay via ducting, larger openings and possibly a vented hood/different front fascia. The perfect FI setup (which I have not seen) is likely not going to place the intercoolers in front of the radiator or will use good ducting to get fresh air around to the radiator. The 300ZX actually had a decent engine compartment layout.

Scribe · 11-02-2009, 12:41 PM

Ok, after looking at images of the Z with the bumper removed, the ideal setup would be very close to the 300ZXTT image I posted and would require relocation of the power steering cooler (not really a big deal) and removal of the black plastic blockers behind the "fangs".

LiquidZ · 11-02-2009, 01:03 PM

Quote:

Originally Posted by aprazma

20g is also available as water and oil cooled.

Looks like I will be calling Greddy to see if you can upgrade!

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11-02-2009, 12:26 PM	#7 (permalink)
Scribe Base Member Join Date: Jan 2009 Location: Houston, TX. Posts: 182 Drives: Touring-Sport-Manual Rep Power: 222	I would definitely upgrade to a large oil cooler if I was going with a turbocharger. The Z's engine compartment is a nightmare for heat management. Heat management is a crucial and usually under-developed portion of a great turbo kit. So says Corkey Bell and my experience. A good 370Z kit is going to need GOOD heat-shields, wraps, covers, etc. And you are going to want to get more air through the engine bay via ducting, larger openings and possibly a vented hood/different front fascia. The perfect FI setup (which I have not seen) is likely not going to place the intercoolers in front of the radiator or will use good ducting to get fresh air around to the radiator. The 300ZX actually had a decent engine compartment layout.

11-02-2009, 12:41 PM	#8 (permalink)
Scribe Base Member Join Date: Jan 2009 Location: Houston, TX. Posts: 182 Drives: Touring-Sport-Manual Rep Power: 222	Ok, after looking at images of the Z with the bumper removed, the ideal setup would be very close to the 300ZXTT image I posted and would require relocation of the power steering cooler (not really a big deal) and removal of the black plastic blockers behind the "fangs".