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High Flowing A Rb20det Turbo

lows_13

By lows_13,
in Engines & Forced Induction

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lows_13 Mentor

lows_13

Posted
Posted

If you wanted to keep the turbo looking standard for defect purposes,

would using a high flowed turbo be an option?

What sort of power figures would you be able to pull from a standard RB20DET turbo thats be high flowed?

Does high flowing mean changing to steel wheels or increase the size of the wheels, or both?

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https://www.sau.com.au/forums/topic/90576-high-flowing-a-rb20det-turbo/
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floody Experienced

floody

Posted
Posted

IMO, I wouldn't bother. Go to something like a GCG HiFlow RB25DET turbo, will still look quite stock and have substantially better power prospects.

I could be wrong, but I suspect thats what people will say.

The other thing is that low mount upgrades that fit your stock manifold would let you keep your factory heatshielding (mostly) which would look quite stock too....

|PRESA| Proficient

|PRESA|

Posted
Posted

I'm sure the RB25 turbo will bolt up to a Rb20.

The GCG Hi-flow is inbetween a stage 1 and stage 2 hi-flow.

What they do is replace the ball bearings with new and fit bigger compressor & turbine wheels. They are good for about 450hp or 230rwkw - 250rwkw depending on the supporting mods.

If you want to keep the stock appearance this would be the way to go.

lows_13 Mentor

lows_13

Posted
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Posted

What would something with these specs run like on a RB20:-

High flowed RB20 turbo, it is running a larger steel exhaust wheel (wheel is larger than a stock RB25 ceramic wheel). The compressor is standard. It is running a plain-bearing centre (not the BB centre of a RB20DET). Housings have been machined to improve flow characteristics.

|PRESA| Proficient

|PRESA|

Posted
Posted

If your looking at making 200rwkw it's perfectly capable of being made on a standard turbo from what I've heard.

Things you can try before spending big $$ on a upgraded turbo is -

FMIC $1100 - $1400

Apexi PFC - $960 (Group buy)

Pod Filter or Upgrade Panel Filter - $100

Bleed Valve @ 12psi - $100

Full Exhaust (Hi-Flow Cat) - $1000

With that you should reach. I put out 163.7rwkws with only boost raised to 12psi, the tuner said if I had PFC + Full Exhaust + FMIC I could easily hit 200rwkw. I don't think an RB20 would be that much behind.

dangerous_daveo Grand Master

dangerous_daveo

Posted
Posted
If your looking at making 200rwkw it's perfectly capable of being made on a standard turbo from what I've heard.

Things you can try before spending big $$ on a upgraded turbo is -

FMIC $1100 - $1400

Apexi PFC - $960 (Group buy)

Pod Filter or Upgrade Panel Filter - $100

Bleed Valve @ 12psi - $100

Full Exhaust (Hi-Flow Cat) - $1000

With that you should reach. I put out 163.7rwkws with only boost raised to 12psi, the tuner said if I had PFC + Full Exhaust + FMIC I could easily hit 200rwkw. I don't think an RB20 would be that much behind.

Show me where your getting an RB20 pfc for under $1k and I'll buy it.

I think with a standard turbo 200rwkw will be destructive push. Just get an r33 or r34 turbo, the cost difference your going to be damn close to your wanted power, and when the turbo does die you got something a bit bigger to hiflow.

grandmasterb Grand Master

grandmasterb

Posted
Posted
If your looking at making 200rwkw it's perfectly capable of being made on a standard turbo from what I've heard.

Things you can try before spending big $$ on a upgraded turbo is -

FMIC $1100 - $1400

Apexi PFC - $960 (Group buy)

Pod Filter or Upgrade Panel Filter - $100

Bleed Valve @ 12psi - $100

Full Exhaust (Hi-Flow Cat) - $1000

With that you should reach. I put out 163.7rwkws with only boost raised to 12psi, the tuner said if I had PFC + Full Exhaust + FMIC I could easily hit 200rwkw. I don't think an RB20 would be that much behind.

FMIC $600

Apexi Power FC Ap Engineered $1050 from me :(

Pod filter - wouldn't really bother

Bleed valve - $35 from turbotech

http://www.skylinesaustralia.com/forums/in...showtopic=73375

Exhaust - $400+ depending on what ya get

WIth that you should be around the 170rwk's as thats what my other car is running with stock turbo at 12psi :)

Cheers B

Cubes Grand Master

Cubes

Posted
Posted

I wouldn't bother with a cheap highflow of the rb20 turbo.

Slap a rb25 turbo on it and make near the same power with much less lag. OR as Mr. Bass suggested, grab a R34 turbo, they are the larger of the turbo's bolted on the side of the RB25 and tend to make a little more power.

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