The Performance Pack 2 is less expensive and closer to the GT350R in suspension, wheels, and tires. The 1LE adds floating rotors, tran and diff coolers out of the box...but you are forced to live with the Camaro's styling and limited visibility. Both have easy to bolt in roll bars (in the Mustang, using OEM mounting points), available seat tracks and harness mounts. With increased interior room over the S2k any seat will fit.

Don't the centrifugal superchargers lack boost on the low end?

 

Yes, basically it mimics a smooth linear curve integral to the factory power curve, just a lot more of it. So its very controlled and predictable, which is great for the track, especially since you are living in the top half of the powerband on the track anyway. On the street around town stop light to stoplight you might find it a bit disappointing if you aren't running a moderately high boost pulley. With a typical moderate boost 13psi/400whp kit, you are only seeing 2psi/20hp gain at 4k rpm. You can roughly multiply your boost and power from there to redline to get an idea of power delivery curve. Its actually quite fun, feeling like a jet engine, the higher you rev the engine and stay in it, the more it pushes you back in the seat. Ive run a centrifugal at all stages in my past. When I was at a moderate 375whp/11psi it was pretty dead nuts even doing freeway pulls with my friends c6 GS. When I was running 16-18psi/425-450whp it was enough for a z06. Just depends on what you need/want for the street or track. Most have their hands full at the track with stock power.

 

That's why we need those cool new variable ratio centrifugals or ones that spin them up electrically in the low end until the pulley takes over on the top end.

 

Cool thought and idea, though not familiar with anyone producing something like this?


It is harder on engines to boost a lot at lower rpms vs higher rpms. More wear and tear/reliability/longevity will be sacrificed some, so keep that in mind too.

 

I seriously doubt even the variable ones produce that much boost at low rpms, but certainly earlier!

 

There are a bunch of great twisted screw superchargers for the FT86/BRZ and at least one for the Miata. Of course, many for US V8s and they come from the factory on some of the highest performance engines: the Corvette LS9 and LT4, the Mustang GT500, and the Dodge Hellcat. Ford offers one with CARB-legal tuning for Mustangs that makes 670hp.

My favorite for the BRZ is from Sprintex. It is available as a 1L or 1.5L and features an air-to-water intercooler that uses Laminova tubes. But the S2000s Honda F-series engine is capable of much higher performance than the BRZ's FA20.

There was one for the S2000, but it is long gone. The S2000 was last sold 9 years ago, and sales for the last three of those declined steeply.

Maybe a bunch of posters should get together and get Sprintex or equivalent to make a limited run for twisted screw turbos for the S2000. It could be a very compact and neat installation. It should be possible to build a unit like the Sprintex for the S2000, maybe using intake components from Xcessinve Manufacturing,

 

I would go for a bottom mount SC so less stress on component

 

Vortech is a good option. If you can find a good condition used one where the previous owner didn't push the blower too fast/beyond it's max RPM.

 

Closest thing I've seen to this is a Rotrex in the AC compressor location, pretty good idea.