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Any feedback on GReddy Turbine Kit T620Z in r33 GTST/RB25DET?

jacobzking
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jacobzking Contributor

jacobzking

Posted
Posted

I'm looking for a direct bolt on turbo upgrade for my 93 R33 GTST.  Anyone have experience with this Greddy T620Z turbo upgrade? I'd like to be able to run about 300hp to the rear wheels without putting too much strain on the turbo. I do daily drive the car.  Pretty stock car with basic bolt ons (exhaust outlet, down pipe, high flow cat and catback exhaust along with intake and FMIC).  I'l probably have a Haltech plug n play on the car before installing the turbo.

https://www.greddy.com/products/turbo-upgrade-ecr33-er34-t620z-rb25-11520057

 

Also, any thought on this much boost on a 30 year old motor with 250,000KMs?  Engine feels/sounds strong for what it's worth.

 

Thanks you in advance!

Murray_Calavera Mentor

Murray_Calavera

Posted
Posted

A couple of things, firstly omg that turbo is expensive! $3,000 USD for dinosaur technology is robbery. You could buy a G series turbo and have a good amount of change instead. 

If you want a good budget option, have a look here - https://hypergearturbos.com/product/rb25dethighflow/

If you are keen to spend more, have look at the modern turbos, Garrett G series, Borgwarner EFR, etc. Have a look at the RB25 dyno results thread for inspiration. 

If you upgrade your turbo to something that will support the 300hp you want and only "probably" have Haltech ECU, your car will only "probably" run. Actually, no it won't run. You are going to need the ECU and injectors at the time you do the turbo upgrade. 

No thoughts on "this much boost" as you didn't say how much boost that actually is. Having said that, plenty of unopened RB25's making even more power then what you are chasing. 

 

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Duncan Grand Master

Duncan

Posted
Posted

300hp (225kw) is barely outside the standard turbo's range with a bit of extra boost in it (200ish).

If you are going to change the turbo you should aim for 250-300kw (330-400hp) to make the expense worthwhile :)

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