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carby on a 304

Started by _freddy_ , Jun 20 2010 09:47 PM

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29 replies to this topic

#1 _freddy_

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Posted 20 June 2010 - 09:47 PM

hey guys had a look thought afew pages but couldn't find what i was after now i know this is very simple but still didnt know.

i want to put a carby on top of my black 304 block so i need a manifold what one do i get?

do i get the one that u use when you have vn heads on a blue block?

thanks matthew

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#2 lx308

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Posted 21 June 2010 - 01:01 PM

Yep. Try Harrop or Redline.

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#3 _sbc57lx_

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Posted 21 June 2010 - 01:48 PM

st up . you will need HEADS. , ( RED . early . RED late . Blue . Black . VN style or after market )
A manifold will not just go on top of a BLOCK .......
MORE INFO NEEDED , what heads do you have ???
There's a big range of inlet manifolds including stock Holden's

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#4 lx308

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Posted 21 June 2010 - 02:38 PM

I assumed he had VN heads.

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#5 _freddy_

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Posted 21 June 2010 - 07:50 PM

yes sorry vn heads, its a vn injected engine.

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#6 _sambo77_

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Posted 22 June 2010 - 05:16 PM

i've heard good things about the torque-power manifolds, mainly the dual plane hi-rise. harrop have been making them for a while now too.

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#7 _freddy_

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Posted 22 June 2010 - 06:11 PM

yea just brought one today from torque-power its a dual plain hi rise to suit my engine the bloke is very helpful also told me afew things for later one, thanks everyone for the help.

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#8 _freddy_

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Posted 22 June 2010 - 09:15 PM

bit of a stupid question but will a 308 (red or blue) fuel pump work on the black 304 engine?

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#9 TerrA LX

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Posted 22 June 2010 - 09:27 PM

^ No, 2 reasons, 1st there is no provision for mounting 2nd there is no eccentric on the end of the cam to actuate it, these can be retrofitted from the earlier red, blue and black motors tho.

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#10 _freddy_

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Posted 23 June 2010 - 08:46 AM

so what your saying is that i need an electric fuel pump around the 7-9psi from the tank to feed the carb? thanks matthew

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#11 lx308

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Posted 23 June 2010 - 02:17 PM

I have a VN 304 block & heads running a Crane cam with the std mechanical pump.

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#12 TerrA LX

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Posted 23 June 2010 - 03:09 PM

so what your saying is that i need an electric fuel pump around the 7-9psi from the tank to feed the carb? thanks matthew

No I am saying you have a choice, 1st choice as you have mentioned above or 2nd remove the timing case cover and change the standard flat washer on the cam to the eccentric washer and replace the timing cover with one that has the provision to mount a mechanical pump.
Hope that clears it up.

I just noticed your sig.... Quote from a 4WD Forum;
pootrol wrote:
"ill measure mine up tomorrow with full droop."

Did you happen to mention also to him that his forum name is poo trol???? hahaha.

Edited by TerrA LX, 23 June 2010 - 03:10 PM.

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#13 _sbc57lx_

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Posted 23 June 2010 - 03:56 PM

I've owned a VK . with factory fitted 308 ( BLACK ), with a standard electronic fuel pump.
The std fuel pump didn't not supply fuel to the carb .
EASY fix , undo the little cover plate on the drivers side of the block , just behind the timing cover and bolt on a mechanical fuel pump,
The actuator should be fitted on the end of the cam , ( unless some one has taken it off )Holden still fitted them , even through they weren't used ))
And get a L34 type pump, a std one does not supply enough fuel ..

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#14 lx308

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Posted 23 June 2010 - 04:30 PM

Did you happen to mention also to him that his forum name is poo trol???? hahaha

It's from a Hilux forum, so anything anti Nissan goes..

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#15 _freddy_

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Posted 23 June 2010 - 05:58 PM

ok thanks guys il get a mates mechanical pump and try if it works ill get a l34 type one if not ill get a electric one

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#16 _freddy_

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Posted 30 June 2010 - 09:09 AM

so does anyone know that if you turn an injected 304 motor (vn) into a carby 304 do you need to change the dizzy?

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#17 TerrA LX

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Posted 30 June 2010 - 11:32 AM

If you need advance, Yes.

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#18 _freddy_

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Posted 30 June 2010 - 01:38 PM

If you need advance, Yes.

what is advance? is that something to do with the vacuum on the carby?

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#19 TerrA LX

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Posted 30 June 2010 - 01:45 PM

Well no not really but there is vacuum advance, basically VN on the ECU advanced the spark as the revs increased, with a carby model the distributor has weights on a plate inside that advances the spark as revs increase.
Hope that helps.

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#20 _freddy_

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Posted 30 June 2010 - 06:20 PM

ok so if i use my standard dizzy from the vn it should still go but wont go as good as it revs higher. could i use the standard vn dizzy for a few months then get a carby style one

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#21 TerrA LX

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Posted 30 June 2010 - 06:23 PM

No.

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#22 _freddy_

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Posted 30 June 2010 - 06:57 PM

ok thanks for clearing that up ill get a 308 dizzy with electronic ingintion and use. thanks matthew

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#23 _bangbang_

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Posted 25 November 2013 - 07:07 AM

Hello

Did you have any luck with the mechanical fuel pump issue mate? I've just got a 304 series 2 VR block built up and put into my Torana, and installed the original mechanical pump (that was working in the old engine 2 weeks ago). However when I wind over the new engine, it doesn't pump!! Perhaps I installed it wrong, or could there be a chance it doesn't suit the new engine / cam?

Any help would be great please