Few VL Questions

[Kirbs]

Ok, I'm looking at getting a VL. I want to turbo it but not just as of yet, But when I am ready I dont want to swap the motor out etc. I've heard about RB20's and RB30's, What one is it that the stock turbos use? I want something I can do a fair bit of work on by myself. As like a hobby/daily. Also, What are some other basic mods that can be done to them? I was thinking Extractors, 2.5" straight through, CAI/Pod, Maybe some slight engine work (crack tested, acid cleaned etc). Help would be appreciated. Please don't flame as I am just trying to learn. Thanks.

[detox_nath83]

rb30 was turbo the 3 litre...............
u basically have summed up the mods
XF throttlebody in place of the stock 1 as well.(bigger throttle plate and housing)
Dont POD it unless you have it boxed and fed with Cold air,,,(K&N panel filter instead of stock paper filter i would recommend)
Pods only suck warm air from the engine bay so no enhancement there..only a nice intake sound :P
Goodluck man. you will have years of enjoyment with the Vl.

[Nackerz]

rb30 came out in the vl they are stock unless you get a factory vl turbo they have an rb30 aswell but they have a A8 motor which is low compression

these are the rb30's
A8 motor = factory turbo low compression

A6 motor = non turbo motor but has oil and water lines already tapped into the block High compression

and the standard rb30 which dont have the oil and water lines tapped you have to tap the holes for the lines


rb20's dont come out in the vl's and they are turbo motors but like the rb30's they have a factory turbo and non turbo

rb20e non turbo
rb20et turbo


if i was to change the rb30 in a vl i would prob go for the rb26dett which is twin tubo thats what the t's stand for turbo

[Kirbs]

Ok, So if I buy a standard VL it will already have the RB30 and I can find a turbo to suit and slap it on there with no work? Do you have any links to useful sites etc? Cheers for the help mate. Thanks for backing up them mods detox. Will also be getting some wheels, paint and cleaning the interior up a bit as well.
Cheers.

[detox_nath83]

making sure u get an rb30 series 2 block which has the oil feed and drain as well as the water feed bungs tapped....
under exhaust manifold.
not too much work... making sure u have everthing.
u can get the stock turbo setup... have a look around wreckers, trading post etc etc...
it will be a high compression setup unless u put in a decompression plate.
turbo injectors and ECU to suit unless u wanna run low low boost not maxing out N/A injectors.. 7psi i think can be run on N/A injectors/ECU untill u melt pistons from lack of fuel.
which is equivilent to approx 10 psi Low compression setup.
U want to run Intercooler etc to prevent pinging/detonation as well to keep the compressed air cooled from turbo...
do a search bud heaps of conversions have been done...on rb30's
i got all my gear to do it(well looking for intercooler piping to suit high-mount turbo manifold.)
might just buy a few donunts in ally piping and weld one up myself.

[Kirbs]

I had a look in the quokka and there was an rb20det with the turbo for $1500. Does this sound about right? I wouldn't mind running the turbo at around 12 PSI. Would these engines hold up?

[Nackerz]

i wouldnt if it was me as thats only a 2 litre an an rb30 is a 3litre just get an a6 rb30 or if you can get an a8 that be even better

but if you get a a6 rb30 just put a decompression plate on it so you can run a higher boost


with the right mods you can run 20psi if ya like

[nasty1]

i wouldnt if it was me as thats only a 2 litre an an rb30 is a 3litre just get an a6 rb30 or if you can get an a8 that be even better

but if you get a a6 rb30 just put a decompression plate on it so you can run a higher boost


with the right mods you can run 20psi if ya like

or do it rite and get some proper pistons and a acl head gasket or a cometic one.

oh and walky they arent rb20et's they are rb20det's.

the twin cam stuff is alot easier to get reliable power from to

[Holdfast]

Mate, here's some images and info on the series 2 block.

Engine

[Kirbs]

i wouldnt if it was me as thats only a 2 litre an an rb30 is a 3litre just get an a6 rb30 or if you can get an a8 that be even better

but if you get a a6 rb30 just put a decompression plate on it so you can run a higher boost


with the right mods you can run 20psi if ya like

Ok. I thought the 2 litres performed better than a 3L.

or do it rite and get some proper pistons and a acl head gasket or a cometic one.

oh and walky they arent rb20et's they are rb20det's.

the twin cam stuff is alot easier to get reliable power from to

What engine had the twin cams?

Mate, here's some images and info on the series 2 block.

Engine

Thanks mate.

Another question, These engines (rb30det) came out of skylines didn't they? I was looking in the Quokka and I only looked at the Australian parts section where there was only like 2 engines available.

Cheers.

[nasty1]

rb 26 rb25 and rb20 are twin cam.

rb30 are single over head cam

and they arent rb30det they are rb30et the det part is just for twin cam et is for single.

although you can put the 2.5 twin cam head on the rb30 and make a rb25/30det

[nasty1]

vl's came factory with rb30 nissans same as the r31 skyline

the twim cam motors gets bang for bucks cheap easy power and reliability

[VL Berlina 5speed]

rb30 came out in the vl they are stock unless you get a factory vl turbo they have an rb30 aswell but they have a A8 motor which is low compression

these are the rb30's
A8 motor = factory turbo low compression

A6 motor = non turbo motor but has oil and water lines already tapped into the block High compression

and the standard rb30 which dont have the oil and water lines tapped you have to tap the holes for the lines


rb20's dont come out in the vl's and they are turbo motors but like the rb30's they have a factory turbo and non turbo

rb20e non turbo
rb20et turbo


if i was to change the rb30 in a vl i would prob go for the rb26dett which is twin tubo thats what the t's stand for turbo

there was a rb20 vl from factory
the vl imported to NZ was a rb20e (single cam)

Austraila had the RB30e standerd and the turbo model was optional on the whole range (RB30et)

or do it rite and get some proper pistons and a acl head gasket or a cometic one.

oh and walky they arent rb20et's they are rb20det's.

the twin cam stuff is alot easier to get reliable power from to

not all are twin cams, the r32 had twin cam. the nz base had a single cam

car is only as reliable as the builder and tune
single cam or twin the only diffrence is the flow, which too me honustly isnt worth the all the money for so little gain
the single cam has been proven to be able to work the big power





the rb20det is said to be like a hyundai excel with a spark plug missing
guttless till it hits boost but when it does its already redlining

pointless and too small capcitay for a 6cyl motor, hence why a sr20 is so much better then it

twin cam was on the RB20De/t
rb25de/t and rb26dett
no rb30 came with the twin cams all are hybrid with rb25 heads on the rb30 bottom end

the rb30e was orignally from the r31 skyline, holden struck a deal with nissan too use it but
holden designed the turbo set up for the rb30 and nissan never had the turbo set up for the rb30
rb30 was also found in the GQ patrols in a carby and efi style set ups

[Kirbs]

Ok, So if I was aiming for maybe 185-190KW then what engine would be best?

[nasty1]

i never said rb20 was single cam.and im talking australia not nz lol

[nasty1]

190 rwkw they all do it with minimal mods

[VL Berlina 5speed]

Ok, So if I was aiming for maybe 185-190KW then what engine would be best?

two safish ways too it but also depending on the engines condition orignally

using a NA motor, with 10psi, cooler, 3" exhaust, factory turbo comp and injectors
should see you in the area

or a turbo motor with same parts but 15-16psi or so


identically they are the same bottom end just one piston is domed to make higher compression (na)


on a side note you dont want to go much past that power as the AFM hits its limits and then the computer just guess on the Air fuel ratio
if it guesses wrong say good by too you pistons

this can be fixed with a diffrent computer and a Z32 AFM but worry about that later when you want a little more power

[Kirbs]

Ok, I am pretty set on a RB25det. This engine has the twin cams? What are peoples thoughts? I might even try get 220-30KW a bit later aswell. Does this sound reasonable?