Exhaust manifold

[nickdog]

Greenhulk did you or anyone you know test that exhaust spacer from ppg. Wonder what we can do to mod the manifold maybe bore it.

[Green Hulk]

No, the only thing i saw of that manifold were pictures.

[two2curupt]

I ported mine...No noticable difference anyways..

[01xdime]

What about the one on the the Yellow site or Quattro?

[seadoo02xp]

ppg talked about how they had some made but i never got on on my ski when they built it, he said i wouldnt see a gain, but who knows

its kind of hard to tune a manifold when it goes through a waterbox and then another rubber hose

[01xdime]

In any case longer, more equal runners will almost always yield gains. I'm curious how the one on Quattro's is made. It looks like they start off with a mounting flange, build the runners off of that like shorty headers, and simply build a box around them with a bolt on cover for cleaning or inspection. This could be fairly easily built by someone with a plasma cutter, welder, and good welding skills. If i only had the time and resources.

[nickdog]

post a pic of it xdime.

[Pale Rider]

01X: Dude someone building a header surrounded by a water case would cost $$$, Most boat headers that are water jacketed are exposed to lots of air to help keep them cool, like in BB jet boats, I don`t think one could build one small enough for the amount of space in our hulls, and keep it cool...PR...

[01xdime]

Quattro motorsports page shows this engine with an interesting exhaust manifold.

[Shibby1485]

still curious about that intercooler.... i bet it is sick in the cooler months... probably a dog in the summer. I might need to get two different intercoolers depending on weather conditions