Personally, I think the Comptech SC is the best SC kit for the engine. Comptech use to sell these kits at selected Honda Dealerships. I also believe it is the only kit that is CARB certified in CA for Stage 1.

I believe Comptech uses the M45 Eaton Roots Type Blower which is designed for engines up to 2.4 liters. The Jackson kit uses M62 Eaton Roots Type Blower which is designed for engines in the 2.0 to 4.0 liter size. Because the larger blower (higher volume of air) the Jackson Racing kit will produce more HP with the same boost, but your going to be investing a ton of money in beefing up the motor to handle the pressure. Your also going to kill the engine life as well.

The Comptech blower allows the street guy more flexibility. I can go to a stage 2 pulley without having to invest tons of money in beefing up the bottom end, and still get 320-340 HP to the wheels (I hope, we will see. I will be doing this upgrade once Hondata releases their fuel tuning application for this car). The Comptech Stage 3 pulley is more race only since you will need to replace your pistons and rods to handle the pressure. The piston ringlets and rods most likely will not handle that much pressure.

One more thing. You will not need an intercooler for the Comptech Stage 1 SC set-up. That is not case for the Jackson Racing kit.

Just my opinion.

Modified by ChargedSI at 3:55 PM 4/21/2008

Modified by ChargedSI at 4:01 PM 4/21/2008

The new Civic Si is a great plateform for forced induction because it breathes so well as an NA engine. With headers and a good exhaust, we expect to see over 300 whp from both the twin-screw and eaton chargers we are going to be testing.

Should be interesting... I'll keep this topic up to date on it.

Chris at RedShift

Thank you for correcting me. I got a little confused (I am an old man), I was thinking of the Red Shift kit. Red Shift needed the intercooler.

Is JR using the Magnusum M45 blower for their kit?

I am not sure what you mean by no room for an intercooler. Are you referring to the piping? As for the tank, there is plenty of room in the front.

Thanks

Any boost adder can use an intercooler because pressurizing the air causes it to increase in temp... basic thermodynamic rule. You don't need it on any blower or charger if you are running 5 psi only... but it would still help make more power than not running an intercooler. The fact that the JR manifods are garbage is way more of an issue than whether they are intercooled.

You'll see that a RedShift kit making 5 psi will make a little more power than the Comptech and alot more than the Jackson kit. And add the intercooler and keep boost the same, and you'll add even more.

JR and Comptech (and eventually we) are using an M62 Eaton based blow. The JR uses their own case design and the Comptech is a true Eaton (through Magnuson) with an integrated bypass valve.

Chris

What fuel tuning is JR and Redshift using? Are you going with a custom reflash like Comptech did or are you waiting for the new fuel tuning application Hondata states they are working on?

Will the Redshift Inter-cooler set-up work with the Comptech Supercharger? I know Comptech and Hondata are working on fuel tuning for higher boost but I don't know what Comptech is going to do about increased intake heat.

I am planning on increasing the boost on my Comptech blower when Hondata releases their new fuel tuning application, but I am concerned about the increased intake heat. I was thinking about using Nitrous cooling but I would prefer an inter-cooler.