the Official 16v thread

[velly_16v_cab]

Ashley 16-valve 4 branch manifold and a something like a 2" or 2.5" diameter bore system

my 16v runs a 4 branch manifold (make unknow) and a little 1.75" dimeter system (for the OME look)

[Preen59]

I hear that and I want that



Only experience is that the cast manifold on a KR is pretty decent as far as standard manifolds go. Mustn't have been cheap to produce.

A good set of extractors will gain around 8-10% from just about every golf magazine I've read.

PS was yours a KR to start with Preeny?

10%? That's well worth it!

Yep KR dude.

[Preen59]

Ashley 16-valve 4 branch manifold and a something like a 2" or 2.5" diameter bore system

my 16v runs a 4 branch manifold (make unknow) and a little 1.75" dimeter system (for the OME look)

What sort of dosh to get one to aus? I was thinking 2.25 or 2.5 inch exhaust.

[velly_16v_cab]

something i will look into.
got a few plans about importing stuff. (16v stuff)

[Preen59]

something i will look into.
got a few plans about importing stuff. (16v stuff)

Who's the man?

YOU'RE THE MAN, Velly.

[evorobin]

cast manifold on a KR is pretty decent as far as standard manifolds go. Mustn't have been cheap to produce.

A good set of extractors will gain around 8-10% from just about every golf magazine I've read.

PS was yours a KR to start with Preeny?

Strange I've heard headers/extractors do jack. I've got a 2.25 exhaust and would happily fork out $$$ for a performance gain!

[Brisben]

Strange I've heard headers/extractors do jack. I've got a 2.25 exhaust and would happily fork out $$$ for a performance gain!

You also need to have a good air delivery to support the new exhaust capabilities.

Exatractors do work, you can feel the difference, but it is not as good if you have a poo intake.

[velly_16v_cab]

Who's the man?

YOU'RE THE MAN, Velly.

easy tiger, not got anything over here yet lol....



4 branch Manifolds (Exatractors) make one hell of a difference!
Esp at the top end where a 16v tends to live most of it life.
My mates 2.0 16v GTI Egnineering jetta had a polished and ported standard cast manifold and he was told that will do him. After alot of playing about he later changed it for Ashley manifold and gained 10BHP @ wheels and broke the 190bhp @ flywheel.
He now fits them to all this 16vs builds (he has since built 2 mk1 16v's)

[Valver.]

You also need to have a good air delivery to support the new exhaust capabilities.

Exatractors do work, you can feel the difference, but it is not as good if you have a poo intake.

Doesn't really make much difference. You can't get much more air into a 16v without changing the intake manifold entirely - and even then it's not worth the effort.

They are crap engine design for an NA motor. They just develop good torque and sound great

[Preen59]

Doesn't really make much difference. You can't get much more air into a 16v without changing the intake manifold entirely - and even then it's not worth the effort.

They are crap engine design for an NA motor. They just develop good torque and sound great

They aren't total crap... Just a long stroke which negates too much peak horsepower.