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Garrett Turbo Help

jet2nv

By jet2nv,
in Engines & Forced Induction

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JonnoHR31 Grand Master

JonnoHR31

Posted
Posted

yep 3040 (3082 in new terms) is way too much compressor for a gt30 hot side.

if you already have the gt35 and can easily get a smaller rear then that would obviously be the easiest and cheapest option. a lot of people seam to get good results with the .63 gt35 which is strange because its a bit of a mismatched turbo. personally i'd prefer a larger housed gt3076 but each to their own.

just keep in mind, even if you get similar results the larger reared gt30 will be easier to drive than the .63 gt35, it will come on more progressively and make traction a lot easier

Mick_o Grand Master

Mick_o

Posted
Posted

I reckon it should be fine mate i have a GTX3071 with .82 internal gate made 288kw @ 21psi without boost control issues im now at 307kw @ 18psi with 25psi coming soon. YAY! Just make sure u dont use 1 of them dodgey divorced front pipes

Harey Veteran

Harey

Posted
Posted

so im thinking about getting the GT3076 with a internal wastegate .82 rear i wonder if that will be ok for 290-300rwkw without boost problems

What boost problems? It would have to be THE most common turbo on an RB25DET for an obvious reason. There are countless 3076s with internal wastegated 0.82 rears making 290-300rwkw. If you choose the GTX3076 they seem to respond well to higher boost levels above 20+psi.

But geeze looking at NYTSKY's thats a lot more top end with the 35! I know it has a lot of other mods and a fresh engine etc but if your after a car to break traction and do naughty things then its quite a good option. But if your after an all round fast car with linear power/torque then GT30 it is.

jet2nv Mentor

jet2nv

Posted
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Posted

yeah i just sold my gt3582r today for 1500 and im looking at 1480 for the gt3076 with the 5 bolt internal wastegate .82 rear just not to sure what todo about a dump pipe as i wont be able to drive it to the exhaust shop

oh i though people had problems with boost control i must of misread something hahaha but yeah hopefully with 290-300 the gt3076 will still be naughty hahaha

rondofj Veteran

rondofj

Posted
Posted

Is it true that nowadays the Garrets are costing as much as or less than the Hypergears, which are not a fully bolt on either.?? Re: custom intake, 90deg elbow, water lines etc, the only thing that bolts on in the HG and not on the garrets is the dump. Hence makes a lot more sense to go Garret..Or did I miss something..

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