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300zx Vg30t

skidkid

By skidkid,
in Engines & Forced Induction

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skidkid Proficient

skidkid

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I am looking at buying an early 300ZX VG30t (2 cam engine) for our class 5 offroad car and am seeking info. Has anybody used one of these engines with reliability and success? What manual g/box and b/housing do they use? Where can I buy a Navara front entry inlet man.? Has anybody got a std computer and eng. loom? How much boost will std engine take with correct tune? Anybody built replacement turbo exhaust manifolds?

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SteveL Mentor

SteveL

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Check out http://z31.com/

These cars are fairly heavy and stock have the same output as VLT (150kW at the flywheel). Be warned that they are renowned for spontaneously bursting into flames.....heat buid-up in the 'V' of the engine causes fuel leaks and, well, instant BBQ. Nissan did a recall in the US to fix the problem, but never admitted to anything in Oz even tho many owners have experienced 'the problem'.

Gearbox in the stock Z31T is more-or-less the same as RB20DET type, but fortunately the gearbox in RWD Navara is as strong as the RB25DET type and will bolt up.

An option for upgrade is VG30DET from Cima....190kW stock, but might not be allowed for your class.

Suspension setup is largely the same as Datto 1600 and 280ZX (+ R30 Skyline, etc)....semi-trailing arms at the rear plus mac struts up front.

Edited by SteveL
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Slide Grand Master

Slide

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I havnt been envolved in Off Road racing for a couple of years but if you want to enter class 5 in a full body car and you are changing the engine, use a lexus 4ltr v8 :D

Reliability of these engines regardles of abuse is amazing.

As far as im aware the origional body shape must remain but everything else as long as they remain rwd can be changed.

I used to follow this car around being attatched somewhat to the family.

140.jpg

Class 1 with a Stock Toyota 3SGTE

Its awesome fun

What car do you plan on using?

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skidkid Proficient

skidkid

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We bought a 120y 2 door that was built for class 5, years ago. It has a recessed fire wall. It has a 180b diff assembly in it. We are going to get it going with a hotty L18 and 5 speed but I am liking the idea of a VG30t.

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Slide Grand Master

Slide

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Anybody know of any vg30t powered buggies or offroad cars?

I have never seen nor heard of one being used.

You would probably be the first.

But the weight of this engine in a 120Y would be bad for pretty much all soft tracks and i wouldnt think it would do you any favours.

It would be definately more suited to another car/buggy

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skidkid Proficient

skidkid

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Slide, Are you able to give any tips on budget building some long travel (8"- 12") Macpherson strut front suspension. The car has Bluebird struts in it at the moment. Or do we need to fit some a-arm / vw front sus.? Can you provide any tips/ measurments of lenghts, angles, shock mount position when building a-arm? With the 180b rear what sort of angle can you run on the shafts? With the car sitting still what sort of cambers do we want? Cheers, Jason.

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Slide Grand Master

Slide

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I dont really have any technical knowledge of your particular class but if you are going to be envolved with SORRA (Sydney Off Road Racing Association) then post up in the forums or get out to an event but places like Gondawindi and such require some good suspension setups to cope with the likes of this sort of air time.

Even with these i have seen strut towers come clean out of the bonnet so go nuts with the support welding. :O

406r3.jpg

Start here

http://www.offroadracing.com.au/

http://www.offroadracing.com.au/links.htm

If you currently attend a few events just go and speak with some Class 5 people.

There used to be two guys from Dondinalong i think with 2 Datsuns but im sure both of them have been retired now for the tube Buggy setup.

Because you dont want this to happen.

427r2.jpg

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