RB 30 3l

[DANIEL.LUX]

gday guys im after a bit more power out of my petrol gas rb 30 without turboing it whats the best way to make that extra few killowatts thanks daniel this is also the carborated setup im running

[striga22]

you can fuel inject it that make a hell of a diffrence i done it to mine also turbo but it's very easy to convert the motor you already have or you can just put a full vl motor in my mate has done that and it goes pretty good

[DANIEL.LUX]

what do u mean by convert as in to injected.

[NutterGQ]

dude be carful with what advice you get on the net. In actual fact the reason nissan went the carb instead of EFI on patrols was because it makes more tourqe with the carby even though less kw, you dont think they busted their balls making a carby motor emiision compliant for no reason when they already had EFI on it in both skyline and VL??.with carb that means it pulls its weight better but not as revvy. Make sure your secondaries are workin as these come with vacuum and mechanical secondaries makes a big diff when there stuck.

You can do extractors exhaust, spacer under carby etc and all that money later it goes much the same.

Now EFI gives less tourqe but 14kw more at the flywheel so it will rev more freely but need to be revved to move hahaha.

Really small motor very big brick you need boost. I wouldnt spen money N/As modding it as your throwin it away, if you cam exhaust carb etc all you do is push power up higher where the brick wont use it.



P.s im drunk no spickin on speelin

[NutterGQ]

broke it

[THE_3LGQ]

i got an RB30. how do i check if the secondaries are working?

[hienuf]

gday guys im after a bit more power out of my petrol gas rb 30 without turboing it whats the best way to make that extra few killowatts thanks daniel this is also the carborated setup im running

Save your cash and look out for a vl turbo that's smashed or just very tired.

You can buy a tired vl turbo for about 1500-2000.

The money you will spend in trying to make more power from the cary setup will be hardly noticeable imo.

[tna racing]

gday guys im after a bit more power out of my petrol gas rb 30 without turboing it whats the best way to make that extra few killowatts thanks daniel this is also the carborated setup im running

Save your cash and look out for a vl turbo that's smashed or just very tired.

You can buy a tired vl turbo for about 1500-2000.

The money you will spend in trying to make more power from the cary setup will be hardly noticeable imo.

or just do what nuttaGq and i have done and turbo it on gas

[AFeral]

Where the carby joins the inlet manifold, you will find a heating element. Looks a bit like honey comb. This can be broken out, this will allow for a more flow.
i removed mine about 2 years ago had no problems. i found this mod gives more top end power. Not much, but some.
Takes all off 15 minutes so worth a try.

[PGS 4WD]

The specs I have are for a VL 247 Nm and 114 kW. Patrol, 224 Nm and 100 kW.

The longish runners on the VL engine promote torque at low rpm. A well tuned EFI system will make more power and torque tan a carby anyday. EFI has a 3 dimentional ignition tune that also enables you to have the correct timing under all load rpm conditions not acheivable with a mechanical curve and vacuum advance.
I can assure you if you went EFI and fitted a Gasresearch carby instead of the mixer you have now it would make more power and torque.
A good set of fuel injectors will atomize fuel better than a carby at low speeds promoting better efficiency.
The reason manufacturers stick with carbies is because they are cheap to produce and being classified a commercial means the Patrol doesn't come under the same emission standard. In the same way a series one 1994 80 series dosent have a catalytic converter or a series 2 an O2 sensor. Just as your 1988 GU dosent have a Catalytic.

If Nissan were battling with emissions you'd see catalytic converters, air pumps, egr valves and alike on the engine.

Cheers

Joel

[chimpboy]

The reason manufacturers stick with carbies is because they are cheap to produce and being classified a commercial means the Patrol doesn't come under the same emission standard. In the same way a series one 1994 80 series dosent have a catalytic converter or a series 2 an O2 sensor. Just as your 1988 GU dosent have a Catalytic.

I'm with Joel. They retained a carby setup to save dollars and they could get away with it because they evaded the emissions rules that apply to passenger cars. Carbies are junk compared to a good EFI setup.

[NutterGQ]

tourqe spread not peak tourqe was said to better by nissan not me lol, I think there a waste of money in n/a form, too much weight too little power.

[brad-chevlux]

if all you will ever want is bit more power,
change over to EFI and fit a cam with 400thou lift and a 50thou duration of about 190degrees. the extra lift will help make more torque and the reduced duration will keep the power down low.
the EFI will help keep the top end power and let you climp hills.

cam and exhaust mods only move the power up the RPM range if you buy the wrong ones.

telling people cam carb exhaust will only move the power higher, is BAD advice

[NutterGQ]

i got an RB30. how do i check if the secondaries are working?

If their mechanical they will be check if there vacuum or mechanical, patrols come with both in early and late motors.


And this is the last post I make here I can see where its going.

[PGS 4WD]

Now EFI gives less tourqe but 14kw more at the flywheel so it will rev more freely but need to be revved to move hahaha.

[hulsty]

The specs I have are for a VL 247 Nm and 114 kW. Patrol, 224 Nm and 100 kW.

The longish runners on the VL engine promote torque at low rpm. A well tuned EFI system will make more power and torque tan a carby anyday. EFI has a 3 dimentional ignition tune that also enables you to have the correct timing under all load rpm conditions not acheivable with a mechanical curve and vacuum advance.
I can assure you if you went EFI and fitted a Gasresearch carby instead of the mixer you have now it would make more power and torque.
A good set of fuel injectors will atomize fuel better than a carby at low speeds promoting better efficiency.
The reason manufacturers stick with carbies is because they are cheap to produce and being classified a commercial means the Patrol doesn't come under the same emission standard. In the same way a series one 1994 80 series dosent have a catalytic converter or a series 2 an O2 sensor. Just as your 1988 GU dosent have a Catalytic.

If Nissan were battling with emissions you'd see catalytic converters, air pumps, egr valves and alike on the engine.

Cheers

Joel

If you go straight gas, use as suggested a gas research carby, HEI, and the EFI inlet manifold, change the cam to suit the setup and shave the head for more compression, with straight gas could really up the compression to take advantage of the higher octane. The RB30 can make decent power N/A, just it will need to rev, skyline GTS2 had 140kw stock. Torque though will be your main aim, which will come from compression and good cam choice

[PGS 4WD]

If you go straight gas, use as suggested a gas research carby, HEI, and the EFI inlet manifold, change the cam to suit the setup and shave the head for more compression, with straight gas could really up the compression to take advantage of the higher octane. The RB30 can make decent power N/A, just it will need to rev, skyline GTS2 had 140kw stock. Torque though will be your main aim, which will come from compression and good cam choice

I'd agree if you are on a budget and can do without petrol. Don't add much duration to the cam, try for maximum lift otherwise low down torque will suffer. You don't need to buy a HEI, an ICE module and coil will run off the output of the factory electronic distributor for less cost and better spark output. Beware taking too much off the head as it can weaken the deck and lead to headgasket issues, get the head rockwell hardness tested if off.

Cheers

Joel

[smoke]

if i convert mine to EFI, will i need to fit the o2 sensor and a catalytic converter?