supercharging my rb30

[Rustyboner81]

ive been thinking about turboing my rb30 GQ
but after speeking with a coworker am now seriously considering putting a small supercharger on it instead, for the low down torque without revs

can anyone shedsome light on the subject for me plz

cheerds russ

[davo94]

I have seen that castlemain rod shop did a kit that uses the SC14 toyota side mount charger.
You will need the kit and clutch upgrade to get any sort of worthwhile power increase.
Long story short nothing you do to a RB30 will make it any good in the bush down low..

[nissannewby]

There was a bloke up here in QLD who had a VL wagon with a supercharged RB30 in it. He used a toyota sc14 Im pretty sure which was used on the 4AGZe engine line running 8-10psi. The toyota supercharger remote mounts so it would only involve mounting it up and sussing your belt options out and away you go. An aftermarket ECU would make your life a lot easier to on the tuning side of it.

[Rustyboner81]

I have seen that castlemain rod shop did a kit that uses the SC14 toyota side mount charger.
You will need the kit and clutch upgrade to get any sort of worthwhile power increase.
Long story short nothing you do to a RB30 will make it any good in the bush down low..

i know it will still need revving, it'll never have the compression of a diesel, but the power increase of forced induction should at least bring the engine displacement up to the 3.0L which you dont get from naturally aspirated engines.

guess after the other projects are done i'll have another think

[Rustyboner81]

There was a bloke up here in QLD who had a VL wagon with a supercharged RB30 in it. He used a toyota sc14 Im pretty sure which was used on the 4AGZe engine line running 8-10psi. The toyota supercharger remote mounts so it would only involve mounting it up and sussing your belt options out and away you go. An aftermarket ECU would make your life a lot easier to on the tuning side of it.

how did his wagon run in the bush?

[nissannewby]

Not sure lol. I was just using it as an example that it can be done and the results will be worth it.

[Robo]

I have seen that castlemain rod shop did a kit that uses the SC14 toyota side mount charger.
You will need the kit and clutch upgrade to get any sort of worthwhile power increase.
Long story short nothing you do to a RB30 will make it any good in the bush down low..

X2 about down low business for rb30 and the clutch.
but that is compared to 4.2 lts bottom end.
that said low gears and revs would be your friend.

Maybe consider efi rb30 turbo set up, cheap to do.
and then maybe consider the blower afterwards.
see how you like the turbo power first.
you would have to do 95% of upgrades for this anyway.
and VL RB's are cheap.
what's the expression, suck it and see.
but remember careful planning is key.
ie aftermarket computer for adjustable tuning for instance

[Rustyboner81]

Sweet guys good info.
I did expect it to be a dic around

Tyres first though. Might be able to get some soon... I hope

[04OFF]

While i like the idea of a Super charger, it would be so much effort to get it all working correctly, you would be much better off bolting a ready made EFI Turbo set up from a VL Turbo, and then "matching" the right Turbo/ECU for your type of application.

Turbos come in all sizes (front and rear housings included), so you can pretty much pick the rev range you want to start making boost, anyone that says you need big revs to get a Turbo on boost, has been watching too many Jamboree videos, remember, all the big trucks use turbos for low down torque, and they don't use big revs to do it.


Talk to a expert on Turbos and you won't have any guess work on what your Turbo engine will do and when, with the right combo, you can even start making boost just off idle if you wish.

[Rustyboner81]

how much trouble would it really be caz its carbi now, to change to efi and run a loom and computer seems like a lot of work too

[davo94]

Its not that bad at all. If going EFI with out the turbo expect a torque drop due to the shape of the manifold. Also look at the r31 skyline for the injection kit. If you advance the cam timing as per the r31 skyline workshop manual add efi and a turbo it will be as good as it can be from an rb30.

Calaisturbo.com.au is a good site for Vls getting stripped out info

[04OFF]

how much trouble would it really be caz its carbi now, to change to efi and run a loom and computer seems like a lot of work too

Id look at buying a complete VL Turbo engine with loom/ECU, then swap over sump etc to fit it into the troll, you also need fuel pump/return line etc, and athough all straight forward, its always more work than you think.

The main thing in going this way, is you know you have everything, and once its physically in, it just works, so your not stuffing around finding bits , and attempting to just get it running, bad driveabilty and tune risks engine damage, and normally results in man getting very stressed and hating the mod/s, so keep it simple so it works first go.

I went through this with my torana, for years i played with turbos on the standard torana engines, always having to stuff around with them to keep them going good, then i put a whole VL turbo engine in it, it was a bit of work sure, but once in, i made more power, used less fuel, and never had to open the bonnet let alone lay a spanner on it.

This is why i don't suggest fitting a blower, not because it won't work great, but its to much R&D to get it finished and right, compared to a RB30 Turbo that has already been all sorted by Nissan for you.

[Robo]

X2
quote.
This is why i don't suggest fitting a blower, not because it won't work great, but its to much R&D to get it finished and right, compared to a RB30 Turbo that has already been all sorted by Nissan for you.
AND.
if you want to up the anti.
RB26 head and small twins.
small spin up faster, less top end but lower torque is king here
easy 250+kw atw 4500+ rpm but this will use fuel.

Actually RB26 trying to drive conservative uses more fuel. they are designed to work above 3000rpm.
so careful planing and a engine builder that knows what he's doing can build to what you want to do is the trick.

[Rustyboner81]

Thanks for all your input

Ive put it in the too hard basket for now.

33x12.5x15 shoes and bar work are first