General 2.4 Inlet Manifold Questions

vocky

I'm doing a few other mods whilst it's apart and some bits and pieces have not arrived, so it's not running yet :roll:

vocky

got a servo vacuum hose one way valve from a 96 astra, so connected that up.
[a 95 corsa has the same valve]

I wanted to test the ecu wiring so fired up the engine with the standard injectors, started first time 🙂

just waiting for parts to arrive now :roll:

alanoo

I'm not sure to understand ? You replaced the complete vaccum hose from the manifold to the VAC on your VX ? :shock:

vocky

follow the vacuum pipe from the inlet manifold, after 300mm there is a small one way valve, this needs to be replaced along with the pipe from the manifold.

very easy to do, unlike replacing the complete pipe to the brake servo :lol:

vocky

here's a pic of the new one way valve and my temporary pipe connecting it to the inlet manifold 🙂

here's a pic of my dipstick bracket 🙂

vocky

some bits arrived today, so they got fitted :lol:

I have refitted the k+n cone filter which was on my vx when I bought it, the standard airbox would not be very easy to modify :roll:

So I now have a 75mm internal diameter intake system :shock:

there's a filter down there somewhere :lol:

so apart from the injectors and wiring up the oil pressure gauge it's done...for now :lol:

JohnnyN

That fuel pressure regulator pipe, depending on positioning in the inlet pipe, how much of an effect will that have on fuelling?

notsure.gif

vocky

JohnnyN said:
That fuel pressure regulator pipe, depending on positioning in the inlet pipe, how much of an effect will that have on fuelling?

notsure.gif

I was thinking about that too notsure.gif

I might not have enough vacuum with the 75mm pipework, but I do have a plan B which is connect it to the servo pipe (circled in red in the fifth pic up) 🙂

JohnnyN

I was wondering if the Vectra C induction pipe was causing me a problem becasue its 70mm bore all the way thru from airbox to T/B as opposed to the O/E flat pipe??

notsure.gif

vocky

that's a similar situation to mine, maybe not enough vacuum to increase the fuel pressure notsure.gif

I will measure both of my 2.2's with my digital pressure gauge 🙂

JohnnyN

Okey dokey! I will expect a full detailed report of your findings.

spy.gif

Daz

me too....considering i got a vec pipe too...

i bet ure mrs loves you neil....Quote just nipping out to tinker with vx love,,,wifes response ..see ya next week...lol

vocky

I'm back already :lol:

right then, I used my digital manometer 0 - 20 mBar 8)

standard z22se [precat removed only]

idle = 0.2 mBar suction to fpr (fuel pressure regulator)
4k rpm = 6.0 mBar suction to fpr

my vx220

idle = 0.2 mBar suction to fpr
4k rpm = 0.2 mBar suction to fpr :shock:

so I will be using plan B otherwise the fuel pressure will not rise with the revs :cry:

JohnnyN

So what can Daz and myself do know then?

notsure.gif

vocky

I'm posting a new thread for this, it's too important cheers..

Daz

we're losing power johnny....

vocky

Daz said:
we're losing power johnny....

you sure are :cry:

JohnnyN

Bugger!!

alanoo

Manifold + 2.4 TB + gasket ordered 😃

vocky

alanoo said:
Manifold + 2.4 TB + gasket ordered 😃

the tb and gasket set will make it much easier to fit 😃

I've moved the fpr vacum pipe to the servo one way valve [there is a small take off fitted to it] and fitted the correct 'servo brake hose' from the valve to the inlet manifold 🙂

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