'04 SeaDoo Sportster 4Tec - supercharged or not?

[Andre900]

Hello,
How do I tell if this 4Tec is supercharged? I've attached three pictures and tagged what I think might be the supercharger w/ a piece of yellow paper on the second & third pictures. View is looking into the engine hatch from the port side.

What is the 4-inch diameter black tube sticking up, open on the end? This tube sucks in air, but shouldn't there be an air filter attached at the open end? Thanks.

 

[Coastiejoe]

I'm in the air, 34,000 feet. Can't open the pics right now for some reason.

Did you get an engine size?

 

[Andre900]

Thanks CoastieJoe. I assume it's the 155HP, 1500cc, 4Tec that came stock with the '04 Sportster 4Tec. The seller claimed that the engine is a rebuilt w/ supercharger. I'm not sure I see a supercharger on there, but I'm not exactly sure what it would look like.

 

[KK40384]

There is nothing where the supercharger goes in those pictures. Non SC it is.

 

[Coastiejoe]

155 engine isn't SC'd.

So if that is accurate as well as the picture not showing a SC, then I would say no SC'r.

 

[Andre900]

Thanks gents. Nonetheless, it flys! What is that black rubber 4-inch intake tube sticking up? Is it correct the way it is or does ot need a filter affixed at the intake opening?

 

[Steve_Cay]

Non-SC air intake is at the rear right of engine looking from the back of boat. Post 2008 just had a filter (looks like a cylindrical CAI filter) clamped at the end of the pipe - earlier models I believe had a filter box. My 2008 non-SC (from memory) has no pipe sticking up where yours is. Does no look right un capped/filtered to me!

 

[Dennis]

I've gotta to disagree. The engine in the pictures IS supercharged. I see it.

 

[KK40384]

I've gotta to disagree. The engine in the pictures IS supercharged. I see it.

I'm not even sure in 2004 there was a SC motor option for the sportster. Only 2005+

 

[Steve_Cay]

I'm not even sure in 2004 there was a SC motor option for the sportster. Only 2005+

Also I thought earlier sportsters had a black and silver engine cover, instead of the all black in the picture. I think all clues point that this was an engine swap.

 

[KK40384]

What we're looking at most likely after a closer look on a larger laptop screen (not my phone this time) that there is a SC. However by the looks of all the hose clamps and J pipe it appears to be a backyard bubba swap of a SC motor into a 155hp hull.

 

[pwgsx]

I see the supercharger clear as day...........

 

[Andre900]

Thanks pwgsx. Yep, that's it. There was some confusion since the '04 Sportster did not offer the SC option. My Sportster had the original 155HP non-sc motor replaced with a rebuilt 155hp sc. It looks like a little bit of a hatchet job, but the boat seems to run very well. I had it out for a couple of hours today - Jan. 2, 1013 - sunny, blue skies, & 85 degrees on the east coast of FL!

 

[ken0276]

My 08 Speedster 155 spins 7340 rpm and went 51 mph, if yours could spin around 7900 rpm or more then your Sportster is powered by the supercharged engine.