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Rb20Det Turbo's

oaffypops

By oaffypops,
in Engines & Forced Induction

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oaffypops Apprentice

oaffypops

Posted
Posted

I know guys, this topics been done to death 3 times over, but I can't seem to decide on a turbo that meets my needs. Chasing 220 ish rwkw but I need advice with the choice of turbo as I've got the fuel system, cam gears and nistune already done. Any recommendations? I was thinking a TD06-20g or a HKS2530 but I can't find a 2530. Any advice would be welcome, dyno sheets would be a plus. Cheers in advance. *Flame-suit on!

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Dan_J Veteran

Dan_J

Posted
Posted

You take standard turbo off, send it off get it high flowed and it bolts straight back in and looks 100% standard.

stao can machine the factory compressor cover to bolt onto the ss1 and weld up the rear housing adapter to look stock

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discopotato03 Grand Master

discopotato03

Posted
Posted

The Minister of RB20dom Roy has been researching this stuff for ages and there are lots of threads here to read through .

I don't think there is a "perfect fit" , to owners taste not spanner stuff , for an RB20 because everyone's expectations are different . Half the hassle is getting a different turbo in and running and then liking/living with the results .

Only you can know what power curve suits you and simply setting a number isn't much of a guide to your likes . 220 wheel wasps should be easy peasy for an RB20 but the $64 question is how much headroom do you expect beyond that . If you don't need any then sure a HKS bolt on like a 2530/2535/GTRS should get you there easily enough . The GTRS would go a bit further too .

The real questions to ask yourself are 1) budget 2) how standard it has to look 3) how far you're going with this engine/car 4) best power curve to suit YOUR driving style .

Physically the hardest part to get right is the turbine housing because it has to suit the turbine/the manifold/the dump pipe/boosting characteristics . The HKS turbine housing does a reasonable job of all these things in that power range but they aren't often cheap and easy to get . Sometimes the go is to buy someone's trashed turbo cheaply and use its housings if they are undamaged .

The best thing to do is go for a run in other peoples GTSTs and see what drive characteristics you like best .

A .

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Maverick86 Rookie

Maverick86

Posted
Posted

I've just slapped an HKS 2530 on my rb20. It is a little laggy, doesn't reach full boost till 4k. A better flowing manifold and a re-tune of the Nistune might help, but it pulls nicely to 8,300rpm. For what I paid for a 2nd hand one, I could have just gone for a hypergear highflow, maybe that's the better option..

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