Greddy T618Z for our FA20 Motor - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

oec88 · 05-08-2019, 12:56 AM

Hello guys,

I am kinda new to forced induction. My friend has a set of Greddy T618Z turbo bolt on kit in his Mazda RX-8, he would like to let go the T618Z turbine as well as the intercooler kit. I was wondering if these two can work on our vehicle, might as well I will need to look for people to custom make Turbo Extractor/Manifold and the rest of piping.

From my knowledge, T518Z a bolt on kit designed for our FA20 motor, while T620Z bolt on kit will require upgrading internal. Will T618Z require to upgrade internal if I am to custom this Turbo into my vehicle?

My objective is not looking at high power, 300hp on engine and I will be very happy with it. T618Z was designed to run with 0.4 bar boost power only. Currently my engine is purely stock, and I have Powerhouse Amuse Overpipe, Tomei Type-80 Front Pipe and Tomei Type-80 Exhaust System. Fuel wise, there is no flex fuel in my place, and my vehicle is running on RON97 at all time.

Ready made turbo kit such as T518Z is also pretty expensive in my place, so I am thinking where the T618Z would work well.

Any inputs will be very much appreciated.

spagti · 05-08-2019, 01:29 AM

I don’t know anything about that turbo but it seems pretty small. I can’t find the specs besides a weird chart on Greddy’s website showing it’s one of the smaller ones. Where did you read that it’s only good for 0.4bar? That’s like 5 psi, so if that were true, you’re not gonna see 300hp at 5psi.

My other reservation to it is the flange. Can’t find what flange it has, but if you go build or buy a manifold for that little turbo, you’ll be stuck modifying it to get a bigger one later if it’s not the same size. If it’s got a standard flange like a T3 that would be good.

I bought an eBay knock off intercooler kit that’s exactly the same as the greddy kit for the twins. It was like $145 for the IC and pipes and couplers and has been working great for me.

How much your friend trying to get for that little snail?

Sent from my iPhone using Tapatalk

CSG Mike · 05-08-2019, 01:57 PM

The turbo part number is a generic one, so more likely than not, it will not be a bolt-on to any existing kit for the FA20.

05-08-2019, 12:56 AM	#1
oec88 Junior Member Join Date: Mar 2018 Drives: Toyota 86 Location: Malaysia Posts: 9 Thanks: 0 Thanked 13 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Greddy T618Z for our FA20 Motor Hello guys, I am kinda new to forced induction. My friend has a set of Greddy T618Z turbo bolt on kit in his Mazda RX-8, he would like to let go the T618Z turbine as well as the intercooler kit. I was wondering if these two can work on our vehicle, might as well I will need to look for people to custom make Turbo Extractor/Manifold and the rest of piping. From my knowledge, T518Z a bolt on kit designed for our FA20 motor, while T620Z bolt on kit will require upgrading internal. Will T618Z require to upgrade internal if I am to custom this Turbo into my vehicle? My objective is not looking at high power, 300hp on engine and I will be very happy with it. T618Z was designed to run with 0.4 bar boost power only. Currently my engine is purely stock, and I have Powerhouse Amuse Overpipe, Tomei Type-80 Front Pipe and Tomei Type-80 Exhaust System. Fuel wise, there is no flex fuel in my place, and my vehicle is running on RON97 at all time. Ready made turbo kit such as T518Z is also pretty expensive in my place, so I am thinking where the T618Z would work well. Any inputs will be very much appreciated.

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05-08-2019, 01:29 AM	#2
spagti Member Join Date: Dec 2018 Drives: Broken Blue BRZ Location: Arizona Posts: 57 Thanks: 14 Thanked 16 Times in 11 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I don’t know anything about that turbo but it seems pretty small. I can’t find the specs besides a weird chart on Greddy’s website showing it’s one of the smaller ones. Where did you read that it’s only good for 0.4bar? That’s like 5 psi, so if that were true, you’re not gonna see 300hp at 5psi. My other reservation to it is the flange. Can’t find what flange it has, but if you go build or buy a manifold for that little turbo, you’ll be stuck modifying it to get a bigger one later if it’s not the same size. If it’s got a standard flange like a T3 that would be good. I bought an eBay knock off intercooler kit that’s exactly the same as the greddy kit for the twins. It was like $145 for the IC and pipes and couplers and has been working great for me. How much your friend trying to get for that little snail? Sent from my iPhone using Tapatalk

05-08-2019, 01:57 PM	#3
CSG Mike Join Date: Jul 2012 Drives: S2000 CR Location: Orange County Posts: 14,564 Thanks: 8,942 Thanked 14,213 Times in 6,856 Posts Mentioned: 970 Post(s) Tagged: 14 Thread(s)	The turbo part number is a generic one, so more likely than not, it will not be a bolt-on to any existing kit for the FA20.

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