Ok being a previous Supra and RX7 owner I pretty much know all there is to know about turbos and their related parts. Firstly: BOV's are NOT illegal. Every stock turbo'd car comes with either a blow off or a bleeder valve (apart from something like the F40 which used an IHI RX6 turbo which is strong enough not to need a bov). Nothing is released into the air other than small traces of exhaust. The only thing which COULD become illegal about it is the sound - I believe anything audible 50ft away constitutes it being illegal (just as with exhausts).

You will either need a new ecu, or something like the apex'i safc to make sure you feed more fuel to the engine as you feed more air. The safc is a piggyback ecu and is really simple to install. Not increasing the fuel will result in detonation, which eventually will result in a nice engine failure. I'm not familiar with the S2k's ecu exactly, but on the supra you needed a VPC (vein pressure controller) which converted the way the supras ecu measured airflow (essential to know how much more fuel to add). On the rx7 this wasn't necessary, so I'll have to research this on the s2000. Either way, an Autometer Air/Fuel ratio gauge is a $70 investment you will learn to appreciate. Other useful gauges are exhaust gas temperature, boost pressure, oil temp/pressure, and an accurate water temperature gauge.

With regards to Boost controllers...I would go with the Greddy PRofec-A or PRofec-B...the B is significantly cheaper and is very very simple to operate (move some dials). The A requires a little more tuning, but both are great units.

I'm on the verge of buying an S2k (still can't make up my mind, just sold my 500rwhp RX7) so I'm interested to see how these turbo kits work out.

 

That's not true. Most new cars come with recirculation valves, which release the pressure from the turbo side of the intake but keep the metered air in the system. I believe one of the reasons BOVs are illegal is because of the way fuel is calcualted. BOVs release an unmeasurable amount of air into the atmoshpere, resulting in the car running rich and producing more fumes. Something along those lines.

 

My point was that the BOV itself is not illegal - if you have a car with a bov and pass smog testing, then everything is fine. I mean, as soon as you start adding turbos to s2k's you are pretty sure you aren't going to be legal in all states anyway =)

 

Uhh... Unless something has changed since I went to school, there are 50 states in the union.... and California only accounts for one of them... We did vote on splitting the state into two, but I'm pretty sure it did not go through.

Did I miss a major news event?

 

How is the air metered in a Honda? Can anyone say MAP?

 

I guess I'm in the crowd that can only contemplate CARB-certified major modifications. Either that or I'm waiting until the S2K is, what, 25 years old?

 

Derryck, what size wheels did you say you bought again? I'm looking for tires now too, as soon as my visa card stops bleeding. I don't know if I'll buy them right off the bat.

Anyone have any suggestions for some good performing (read: no chromed blingblings) wheels?

cd

 

I went with the OZ Supperlegerra's which are multi-spoke gun-metal wheels. I have 18" x 9"'s in the rear with 265 35 18 BF Goodrich KD's. In the front I have 17" x 7"'s with 225 40 17 BF Goodrich KD's. You'll definitely want something fairly wide in the rear, my tires still spin shifting into 2nd and 3rd.

 

[QUOTE]Originally posted by derryck
[B]I went with the OZ Supperlegerra's which are multi-spoke gun-metal wheels.

 

Without any cutting? Not really sure what you're talking about but I guess the answer would be yes, no way in hell am I cutting up my car to install aftermarket wheels.