Turbos Turbos So Many What To Do?

[335]

Hello

I have a Rb 25 turbo I am going to put onto my RB 20 DET. I have seen many aftermarket turbos. In the old posts, the 2530 is talked about a lot.

Which turbo will be good for me if I want 300 plus horse power, and is good for a daily driver with good mid range but can get up and go if I want it to?

Help please

[lachlanw]

a neo turbo on a rb20det with frount mount and exhaust stock ecu untuned will make 200kw at the hubs at 11 psi with the injectors on the limit . your stock injectors wont do 300 hp (maybe with lots of pressure ). slap some gtr ones in . so maybe look into that .

depends on budget and future goals

[Nackerz]

Question?

With gtr injectors you either need a remap or aftermarket ecu. Is this correct??

How much for this neo turbo you speak of?? and what is it??

[lachlanw]

factory turbo off a r34 neo engine . they have a bigger rear housing than r33 turbos .

yeah youll need a full re map as gtr injectors are 440 cc and yours are 270 cc

[The Bogan]

Speak to a professional like Yavus at UNIGROUP, there are 11ty GAZILLION ways to go, but really only one right way.

Make sure you know what you want from your car first though, budget-lotsa $$$$$-power-response-street-circuit-drags

[Kwyjibo]

Look at the RB20 dyno thread. From there work out a power goal that is reasonable for your budget.

If you have $4000 and want response but reasonable power go an HKS2530.

As an example I aimed for approx 220rwkw and bought the following. I fell short at 215rwkw but I have a very old engine.

In that case your looking at:

$1000-$1400ish for turbo/lines/HKS actuator

$300 for GTR injectors + clean and flow test

$240 for a Bosch 040 fuel pump

$500 for Just Jap FMIC

$60 for resistor pack

$40 for Turbotech boost controller

$250 for Z32 AFM

$1200 for Power FC

$800 for tune(depending where you live)

If you just want something cheap but less than 200kw you can pretty much get away with buying an RB25 turbo and chucking it straight on with a boost controller.

[The Bogan]

A dyno will not tell you how good or bad your response is, My dyno graph from 2 yrs ago was a nice smooth line up to 260kw which looked great but was as laggy as 10 laggy things, in the real world a dyno reading isn't the road, you need something from 1 st to top gear running up from idle to get a good reading of what is really happening .

Have a look in HPI no 124 page 81, excellent write up.

[hypergear]

Just high flow your stock turbo with a Garrett 2860RS core or similar. Which basically turn it into a 2530. That works pretty well with RB20det engines.