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Rb20Det Max Power


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hey guys just wonder what type of power ill get out of my rb20det with this set up

ENGINE 100% stock

- Top mount GT35 Turbo, 0.63 turbine housing, Compressor housing: A/R .70 with 100mm air inlet ( boost 3000-4000+?)

or WS-0448 Turbo

- 38mm external wastegate

- 550cc injectors

- Yellow jacket coilpacks

- NGK R Iritop 7 spark plugs

- Bosch 040 intake fuel pump

- HKS SSQV BOV Plumb back

-Z32 afm

- Big front mount

- full 3" zorst

- and a nistune.

ill be happy with 200-300kw

what RPM do you think this will start boost and reach max boost?

Will be using stock ecu for a while.

POST how much hp you think will come from this!

Thanks

Edited by swirto
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Stock ECU - forget about anything occuring mate. Dont even wind up the boost until you get a tune.

GT35 - boost around 4,000-4,500 even with a .63, might be later. Hard to say.

You'll be lucky if you make 300rwkw on 20psi

You'll need to throw 25psi+ down it's neck to get anywhere with a 700hp turbo with a choked rear end. You'll also need a bigger exhaust for that turbo. 3" might not get you there.

All that said, you've probably realised a theme - buy something that is not a 700hp turbo for 250rwkw and be much better off for it. I think it's a very bad choice of turbo.

There are loads of better choices:

3071 - 260rwkw

TD06 - 270rwkw

HKS2530 - 230rwkw

Also forget the Iridi plugs, waste of money. Buy normal copper.

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How long is a piece of string? Every motor is different, condition plays a big part if you are using a second hand motor. If you are modifying the motor then you deffintly need a aftermarket ecu!

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That's quite a big turbo with a tiny rear end for a tiny motor. You'll get more investing in an RB25DET motor and a little more boost. Seriously, an RB25DET stock turbo 13 psi with a tune, pump, injectors and what not will see about 220rwkw.

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All that said, you've probably realised a theme - buy something that is not a 700hp turbo for 250rwkw and be much better off for it. I think it's a very bad choice of turbo.

There are loads of better choices:

3071 - 260rwkw

TD06 - 270rwkw

HKS2530 - 230rwkw

Also forget the Iridi plugs, waste of money. Buy normal copper.

This.

Recommend this item:

http://cgi.ebay.com.au/Turbocharger-Kinugawa-TD06SL2-20G-w-T3-V-Band-Housing-/280657315892?pt=AU_Car_Parts_Accessories&hash=item41587ac834

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Once you start getting past 220-230 rwkw with a rb20 you'll get nothing but lag, the best turbos out there ie least amount of lag for a 20 will get you 230 rwkw max, once you start chasing more that means bigger turbo = lag, and i mean piss you of annoying lag trust me. The turbo you listed will be to laggy and is more suited to a 2.5 or 3 litre.

If you have the cash invest in a 25, pretty easy to get a reliable 260-300rwkw where as a 20 is kinda to restricted for anything over 230.

I'm sunning a standard turbo highflowed and have 219 rwkw and its not to laggy, still more then standard of course but no where near as bad as say a 33 highflow. I make full boost by around 4-4.5k, i personally think around 210-230 is perfect for a 20.:thumbsup:

A hks 2535 would prob get you closer to 240 or more but unsure how it compares lag wise to the hks 2530 which is a proven winner on a 20.

I should ad that e85 could be the way to go to, theres a guy on here who got 265 rwkw from his 20 with similar turbo as mine, just he has spent a fair bit of time on rb26 inlet manifold and a few other things, but still a pretty good effort.

Edited by eightsixboy
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A proper trust TD06L2 has been proven time and time again...

If you think it is really laggy then you should not have an RB20. It is a worthwhile compromise.

If you still want it for daily duties and a little track then you can't go past the HKS 2530 option mentioned or the 2871.

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forgot to mension that the car is running a fuel pressure reg already.

this car will be about 70% highway and takin to the drags for fun.

Edited by swirto
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