What spacer combination is best?

[triple b]

Hey guys, Im looking for some advice on what spacer combination is best.

Currently I have a 12mm manifold spacer

The two combinations im thinking are:
-12mm manifold (which I got already) and a 12mm plenum
-or upgrade to JUST a 25mm manifold spacer

And to add to these i will be purchasing a set of roller rockers as well a bit further down the track and I'm a P-plater so if the turtle cover can stay on that would be great


**If it helps the car also has a full exhaust system on it already (extractors back)**

[VKCOMMO]

Why does the turtle cover need to stay on? There are no laws that say they cant be off, and if youre worried about popo attention to the spacers, do what HamaTime (i think it was him) and carefully paint the outside of them silver...

[triple b]

The turtle cover doesnt NEED to stay on, i would just prefer it to. It makes everything look a little bit neater aswell

[Trayner]

Why does the turtle cover need to stay on? There are no laws that say they cant be off, and if youre worried about popo attention to the spacers, do what HamaTime (i think it was him) and carefully paint the outside of them silver...

ive been defected for not having it on , thats how the cops are down my way

[jr689]

Woah trayner are you serious that's a bit extreme ay. On what grounds did they say an engine cover is necessary?

[triple b]

umm yeah thats pretty out there trayner

before this thread turns into a defect discussion could i have some advice and input on the original question please lol

[Trayner]

well depends , are you ever going to supercharge your car?

If your going to stay N/A
go

- MACE 25mm Manifold Insulator
- MACE 12mm Plenum Spacer


and other way for supercharged

[triple b]

Yeah mate she will probly stay N/A, got another 2years left on my P's

Might do a L67 conversion afterwards or sell it and buy something new

[Full Spectrum]

Was going to ask steve this very question..

The turtle shell can reduce some noise. i removed mine once and went for a drive. bloody louder without if you ask me.

[Dr HaxZaw]

Was going to ask steve this very question..

The turtle shell can reduce some noise. i removed mine once and went for a drive. bloody louder without if you ask me

yeah i noticed this but if you look underneath them they have a black material which i believe is there for sound deadening... however it holds the heat in like a bitch too
i took it off to change leads and spark plugs and havent even thought of putting it back on... some reason id rather look at my engine than bits of plastic with engine sticking out

[MACE]

triple b,

In regards to ideal spacer combo's Trayner has perfectly summed it up well

well depends , are you ever going to supercharge your car?

If your going to stay N/A
go

- MACE 25mm Manifold Insulator
- MACE 12mm Plenum Spacer

and other way for supercharged

In your case if you already have a 12mm manifold insulator I wouldn't worry about upgrading to a 25mm item (unless you wanted the best possible gains), instead sticking with the 12mm plenum spacer.

Hope this helps

Cheers,
Steve

[triple b]

alrite cheers steve, a 12mm plenum spacer it is and then a little bit further down the track a new set of roller rockers

[Full Spectrum]

yeah i noticed this but if you look underneath them they have a black material which i believe is there for sound deadening... however it holds the heat in like a bitch too
i took it off to change leads and spark plugs and havent even thought of putting it back on... some reason id rather look at my engine than bits of plastic with engine sticking out

After reading your comments I'm going out to remove it now.. Maybe in time I will paint the lid make it look good lol.