2zzge turbo exhaust manifold

[barryogen]

Hi there guys,
I was looking at the stock exhaust manifold on a 2zzge which looks somewhat like this


And I was wondering as to whether or not you could just cut off the end of it, and weld the correct turbo flange onto it.

The reason why I say this, is that most places seem to want to make a manifold that looks like a log, like this one.


Your thoughts please.

[Calvin]

a guy on here did what you are thinking with a 4age manifold. Took standard 16v exh manifold and grinded the bottom and welded a t3 flange.. Performance wise not sure how it went.. but it went .. lol..

Picture for your viewing pleasure:

[barryogen]

Any idea on the users name... might be handy to know.

Will be chatting to a few tuners to see their thoughts on it, but I don't see anything bad about it, appart from the fact that it is a slightly longer than usual exhaust path, which would make spool a bit slower, but should also stop pulsing issues.

[spencer]

It will be sweet as you wont notice any spool differences, I'd say its just a matter of placement

[Mr Revhead]

matter of will a turbo fit in there i would say.....

[Crampy]

a guy on here did what you are thinking with a 4age manifold. Took standard 16v exh manifold and grinded the bottom and welded a t3 flange.. Performance wise not sure how it went.. but it went .. lol..

Picture for your viewing pleasure:

Hey that's the one I sold on Trademe a while back. It was a T25 flange by the way.

I didn't do it though, I got it off someone on Trademe a while back.
He said it'd been used at around 18psi and it was still in good nick when I had it.

[matt dunn]

Are you wanting a FWD manifold for a 2ZZ?

We may be making RWD one's soon, not too sure how different they would need to be.
Would depend on how much room there is between the engine and the radiator.

[soopachargen]

the exhaust goes between the motor and the firewall matt... if thats what you're meaning by clearance for a fwd manifold...

[Alex B]

You mean the engine and the firewall?

[Crampy]

Yep yep. Reversed manifolds. Probably the reason for the log style ones at the top of this topic. Not much room for the turbo back there.

[barryogen]

There appears to be "plenty" of room there, of course heat would be an issue obviously, but from chatting to a few places round town, no-one can figure out why the yankys and polish guys have done them with log style manifolds.

I guess when it comes time, I'll get it cut up, and find out, there seems to be few doing anything with 2zz's here in NZ, let alone Dunedin(barring Mr Dunn who seems to be doing something RWD... nice ).

It's still a while off anyway, just trying to pre-plan anything to make it a less stressful build... and to make the build as quick as possible so the mrs doesn't notice

[barryogen]

so other than maybe oil drainage issues from hanging it low, there seems to be little wrong with doing it.

If it is draining to the sump, would there still be an issue as long as it was above the drainage bung?

[Crampy]

so other than maybe oil drainage issues from hanging it low, there seems to be little wrong with doing it.

If it is draining to the sump, would there still be an issue as long as it was above the drainage bung?

The bung??? You want the oil return to be higher than the oil level in the sump. Seen people with 4AGE turbo oil return problems heaps when they have it too low. Do it as high as possible.

[barryogen]

heh, I had written some other stuff, and then deleted it, what I meant was where I bunged the return into the sump.

So basically, keep the turbo as high as possible, and the return above the oil level in the sump, makes sense.

[Crampy]

Yep. I was wondering a bit there.
You know what your doing though by the sound of things.
I love those motors. I wanted to buy a RUNX a while back, but to rich for my blood damn it.

Good luck with your project.

[sergei]

You could run a small electric pump to do the oil extraction...

[barryogen]

"knoiw what I'm doing"... I'm getting there, I'm a geek for a living, like fast things, and tend to like to learn about technical stuff, so cars are the next logical thing to get into.

Electric pump is a good idea, will look into it.
Any suggestions on the small oil pump? most oil pumps when searched for on google seem to be "engine size" oil pump replacements.

[Crampy]

Yeah I've seen turbo systems with a oil pump return. Always wondered what sort of pump they'd use.
It'd only need to be a low pressure low flow pump wouldn't it?

[slighty_sykotic]

Make a small box with baffles to hold a the oil from the turbo? and then put the pump in the box to pump it into the sump?

Like a resivour on a water cooling cpu system