Quoted from your fellow moderator slows2k in the link I provided:

"PCV systems are designed to use engine vacuum to eliminate the positive pressure created from the air displaced on the bottom sides of the pistons. The front breather on the valve cover is designed to let air enter the crankcase as it's being pulled out by the PCV.

Plugging the PCV and running a filter on the front breather isn't as effective as a PCV system. Better gasket sealing (no pressure pushing from the inside) and reduced evaporative emissions are also benefits of a PCV system. You also don't get the oily mess around the breather.

OEM's stopped using open breathers 50 years ago for a good reason."

 

Like I said on my original post, I hate it when people post things that are not true. If you don't know what you are talking about or aren't sure, then don't post statements as fact.

"PCV systems are designed to use engine vacuum to eliminate the positive pressure created from the air displaced on the bottom sides of the pistons. The front breather on the valve cover is designed to let air enter the crankcase as it's being pulled out by the PCV."

And in this case that is exactly what the front breather is doing.

"Plugging the PCV and running a filter on the front breather isn't as effective as a PCV system."

If you look at the original post picture, the PCV was not plugged.

OEM stopped using breather because EPA mandated it. From a performance standpoint it is better not to have the front valve cover port routed to the intake manifold because oil vapors can reduce the octane value of the intake charge. The EPA doesn't like breathers because they would rather have the vapors burnt in the engine rather than expelled to the air.

 

http://evolutionautosports.com/s2000larry.htm

here is a speedcraft turbo S

 

Definitely Speedcraft

 

I hope you don't venture out into s2000talk often then...

It looks as if I might have picked a bad example to quote then. My apologies. However, in my reading I've always come across instances where people advise against using the breather filter, as well as the instance with this particular mechanic. I guess either everyone was wrong, or I misunderstood the situation every time. If this is the case, once again, my apologies.

Oh, and you really shouldn't "hate" so much. A simple correction would have sufficed, however the way you worded it was almost as if you were trying to embarrass me - especially with the random post showing off your motor and boasting power numbers when I never once mentioned anything about power loss. Oh, nice heat shield though - pretty spiffy.

 

[QUOTE=Slows2k,Dec 11 2006, 11:45 AM] The manifolds have known to warp, and the low mount manifold limits what turbo you can use.

 

No parts are available for this kit anymore. Speedcraft has been gone for a long time. The last time I checked with what was left of Speedcraft (another company I can't remember) They had lost the jigs to build the manifold.

Use causes them to warp. The last picture I posted had a 3/8" bow in the manifold flange. It still mostly sealed, but it did leak some. The flange was resurfaced by a machine shop and has been fine since.

 

They changed to Stage6Motorsports in FL.

 

that's it. I couldn't remember. Over 2 years ago I asked if they would make another kit, They said they lost the manifold jigs, but could do another. It would be 6K +EMS. With the same turbo. I said no thanks.

 

If you are willing to drive to VA.. Inline Pro is there.. Great company.. but in my opinon.. I would not buy a use turbo kit.. specially one that is not made anymore.. I would invest in a stock car and build it from new.. but that is my 2cents...