That fender area is an excellent place for the intake to pick up colder air. I opened mine up like yours. In the photo attached, the filter actually protrudes into the fender almost an inch. I didn't do anything like that metal box they put in yours. There is a major air source at the side of the radiator that also feeds that area. It looks like they put some thought into what they did.

 

I don't want to give their name, to avoid getting into a spat in this forum. They're a local speed shop in Roswell, GA so most folks on S2KI would never have occasion to go there anyway. Not really known within the S2000 community as far as I know.

 

Totally agreed, they did put thought into it. The owner seems really sharp and several of the muscle cars they've built have been in magazines, so they know their stuff. It's just the low quality of the work and the collateral damage that surprised me.

Great pic! The polished aluminum pieces look great in a black engine bay.

 

TO I see what your saying about the bypass hose heat soaking things. I just did a 4 hour drive last night to break in everything. Im not allowed in boost so the bypass valve is working all the time. After I got home I checked everything and the hose for the bypass hose was really hot but the after cooler was cool to the touch along with the coolant lines going to it.

 

Well, I got tuned yesterday. On a dyno dynamics heartbreaker dyno where S2000's make 180whp stock, I made about 350whp at 14.4psi. We didn't finish until 8pm and I forgot to get the dyno plots before I left, so I'll try to get them today. The guys at the shop were really surprised because S2000's with Comptech kits usually make about 260whp on that dyno.

We had the BLV screwed in too tight so it never opened to relieve boost. Tried loosening it a few times (not far enough, I guess) and just ran out of time, needed to get the tune done. I'm fine with 14.4psi for now, and will probably go back with a smaller pulley and dial it back a bit then. (My target for yesterday was 13psi, but I was thinking about 14 anyway.)

Donald, that's interesting - I hadn't thought to check how hot the hose was before we disconnected it from the SC intake. The tuner was really impressed with the low IAT's on the dyno; he said they were only 30-40 degrees above ambient. I'll try to get that info too; this is all from memory.

 

surprising results, i expected well over 400 whp at 14.4 PSI on a 1200, even on a dyno dynamics.

 

Agreed. On that dyno I expected high 300's. I'll probably go back with a smaller pulley but limit the boost so I can get more low end / midrange, though that won't affect the peak numbers. I'll also find an opportunity to dyno on another Dynojet locally for comparison one of these days.

 

Good luck! keep us posted. No belt slip on that last dyno I assume?

 

TO what was your WHP and boost before the BLV? 14 PSI is safe on a SOS 1200 Kit? If so then why is my 93 only set for 10-12psi...I need to up that before the tune!!

 

My last tune was 326whp (Dynojet) at 10.7psi with a lot of belt slip. The torque curve totally dropped off at high rpm. For this tune I installed the 3.6" SOS pulley which should be 15psi or so. I was planning to use the BLV to limit boost to 13psi or so. I've also got a HFC which hopefully lowers the measured boost level a bit and gives me a couple HP in return. My tuner assures me that it's a safe, conservative tune. But... He also asked if I was the type to bounce it off the rev limiter (heck no).

The BLV is a very simple arrangement - just a white ball held against the opening by a spring. When the boost level gets higher than the spring pressure, the air should force the ball back and compress the spring so it can blow off. It should close again once it hits the target boost level. On the end of the shaft is a screw; turn the screw tighter to compress the spring or loosen it to relax the spring pressure. How far you tighten it should dictate what boost pressure is required to move the ball.

We tried to unscrew the BLV a bit to get it to release the extra boost, but this was like 7:30pm on a Monday. They'd been at work since 8am that day and still had more work to do. So after loosening it a few times, we gave up and just ran with the boost pressure the kit was yielding. I still don't have the charts, but on screen the torque curve looked like a straight line all the way to redline. The SC belt has loosened ever so slightly but still feels appropriately tight. Thus I do not think there was any belt slip.