Hey, what about mine?

Racy, no?

Looks good, Fred. You have the wheels we were talking about on a thread last week....

Hey HS-30h, Stupid question: When you say 'twin-pipes' do you mean just twin outlets (tips) from the muffler (silencer), OR do you mean twin pipes all the way from the manifold--like the 'twice-pipes' system MSA and others sell?

steve77

(just a boring old HSL-30)

you mean the game or just the repaint?

Hi Zvoiture,

There are NO silly questions ( apart from those "how fast will my car go if....?" ones that you sometimes see ).

Like your new avatar - great!

The original system on the PS30 ( for the S20 engine ) was twin piped all the way through from the manifold. They go through the muffler boxes ( the pipes were perforated inside ) and out the back, changing from side-by-side to one-up one-down just before the rear box.

FUJITSUBO ( famous old muffler company in Japan ) made their own version for the L-series engined cars very soon after the Z debuted in 1969, and such systems have been popular there ever since. They offer advantages in clearance over a single big pipe, and they sound quite distinctive too.

I think the MSA "Twice Pipes" system must have been based on a similar theory, although I have never seen one one in the flesh.

And hey, over here HLS30's are pretty exotic creatures - so don't get the feeling that I have a superiority complex going or anything. I would never diss a North American market Z ( apart from the handbrake being on the wrong side of the tunnel and the fact that the factory left you without five-speeds, rear anti-roll bars and decent diff. ratios - Miaow! ).

Alan.

Interesting...I think I will try it on my new 'project'. I have considered installing a single 12" straight-thru 'bullet' style muffler in each circuit.

Funny, I always thought the English loved their 'side-by-sides' better than those dreadful 'over-unders'!!!!!!

steve77

Mmmm yes, they do look quite distinctive...

Kinda like you bought a muffler and then you realised you didnt have room to put it "normally" so you just whacked it on like that.

Can't say I'd have it (unless it was a 432 of course ) on my Z, but it certainly adds to the character of your car...