Vg30det Turbo Onto Rb20det

[50FFT]

Hey Everyone,

I recently got a VG30DET Turbo as a cheap upgrade for my RB20DET. I am planning to install myself as the cash flow isnt the best...

I'm just wondering is it all just a bolt on upgrade in terms of oil lines and banjo fitting ect.

and also if anyone knows whether the original RB20 dump pipe will fit on.

Anyone who has done this upgrade plz help!!!!

Matt

[Cubes]

Providing its not off an early 300zx VG30DET and off a 90's Leopard/Cima etc its a simply bolt on. Everything fits.

Have you got the 90degree elbow? If not you will need one from an Rb25 turbo. I picked mine up for $25 from a local wrecker.

The 300zx VG30DET turbo is a pig of a turbo, its essentially the same turbo as the VLT Commodore runs. So yes that will require a new dump/front pipe, inlet piping mods, oil and possibly water mods.

On the rb20 expect it not to really snap hard in first and expect roll on in second gear out of a corner not to really come on until 4000rpm. I found the Vg30DET on the rb20 lost its 'turbo' feel as it was very progressive and linear, it did pull nicer to 7500rpm so if possibly extend out the rev limit a touch to make use of the usable power band.

[50FFT]

Providing its not off an early 300zx VG30DET and off a 90's Leopard/Cima etc its a simply bolt on. Everything fits.

Have you got the 90degree elbow? If not you will need one from an Rb25 turbo. I picked mine up for $25 from a local wrecker.

The 300zx VG30DET turbo is a pig of a turbo, its essentially the same turbo as the VLT Commodore runs. So yes that will require a new dump/front pipe, inlet piping mods, oil and possibly water mods.

On the rb20 expect it not to really snap hard in first and expect roll on in second gear out of a corner not to really come on until 4000rpm. I found the Vg30DET on the rb20 lost its 'turbo' feel as it was very progressive and linear, it did pull nicer to 7500rpm so if possibly extend out the rev limit a touch to make use of the usable power band.

Its the same as this one, http://www.kansaiautomotive.com/parts2.htm

I'm hoping its off a leopard but i'm not really sure on how to tell!

Do you know which one it is in the picture...Its the turbo on the right of the picture and its about half way down the page.

Matt

[Cubes]

That turbo is the correct one.

Have you bought the turbo yet?

You really are better off with an rb25 turbo on your 20.

The rb25 turbo runs a larger higherflowing compressor wheel paired with a slightly smaller turbine housing compared to the vg30det turbo. The result is a more responsive turbo that makes more power everywhere.

The Vg30DEt turbo is actually an rb20det turbo with a slightly larger compressor cover and turbine housing. So swap the housings on to your rb20det turbo and you have a vg30det turbo.

If you keep an eye on the f/s section rb25 turbo's pop up from time to time for around the $400 mark.

[50FFT]

That turbo is the correct one.

Have you bought the turbo yet?

You really are better off with an rb25 turbo on your 20.

The rb25 turbo runs a larger higherflowing compressor wheel paired with a slightly smaller turbine housing compared to the vg30det turbo. The result is a more responsive turbo that makes more power everywhere.

The Vg30DEt turbo is actually an rb20det turbo with a slightly larger compressor cover and turbine housing. So swap the housings on to your rb20det turbo and you have a vg30det turbo.

If you keep an eye on the f/s section rb25 turbo's pop up from time to time for around the $400 mark.

Yeah I bought it already, It sounded like an ok option for what i wanted!

I wanna make 200rwkw with not to much strain on stuff with as little money as possible, i've read there a little laggy but thats fine with me...bring on the revs!

I'm glad its the right turbo cause i really couldn't be rooted stuffing around with everything

My Mods will be:

RB20DET

Greddy E-Manage Piggyback ECU

Z32 AFM

Apexi AVCR EBC

VG30DET Turbo

600mmx300mm FMIC

3" Exhaust

POD Filter

Bosch 040 Fuel Pump

Nismo 550cc Injectors

Reckon I should reach my aim power level of 200rwkw???

Matt

[Cubes]

200rwkw... depends on the dyno and how clean your exhaust setup is.

My guess would be more so around the 185-190rwkw mark on 1bar. But again it depends on the dyno and how clean your exhaust setup is.

[50FFT]

200rwkw... depends on the dyno and how clean your exhaust setup is.

My guess would be more so around the 185-190rwkw mark on 1bar. But again it depends on the dyno and how clean your exhaust setup is.

In terms of the tune and boost setup would you keep it to just 1bar on that set-up or could i squeeze a little more outta him

Matt

[Cubes]

Depends on the car's use and driving style.

If it only ever see's quick blats then cruise you could squeeze more out of the turbo.

If you really hammer the car and hold it down for long periods of time EGT's creep up and there goes that ceramic turbine wheel.

I.e drift, track or if your a crazy arsed boy racer.

If it does let go you could always just throw the housings on your rb20det turbo and drop the boost a little.

However, ceramic exhaust wheels have been known to stuff motors when they let go so do be carefull.