| in the combustion chamber. You dont need 555cc injectors for your application, the 370cc injectors will flow enough fuel to run your setup close to 400RWHP. There is a typical trend of 1HP per CC of capacity for our engines, but that's with an 8.5:1 compression ratio. The higher compression your engine has makes for a more efficient conversion of combustion energy into mechanical energy since the ignition timing will be less advanced to get proper peak cylinder pressure timing and you will have less counter-acting force from combustion before TDC. This is where I get the 400RWHP figure from with 370cc injectors. You dont just add fuel where it detonates. You get your A/F to your target first (which should be around 11.0:1 with your higher compression) and you regulate detonation by altering the ignition timing maps. If it pings at 5000RPM, you pull timing, NOT add fuel. You will find that as you increase boost pressure, the engine will be more likely to detonate. You dont want to try and fix this problem by adding fuel as you will throw off your mixture. You control the detonation via ignition timing. But there are limitations to how much you can can pull timing as it will produce less power, and this is the point where you want to either increase your fuel octane OR run water injection, which has the same effect. By doing this, you will actually be able to make more power as you will not have to retard your ignition timing while raising boost. With water injection on your car, you would likely be able to run 14psi of boost pressure on 93 octane fuel with about 14 degrees of timing advance and the car will make around 340RWHP. OR, you could try using race fuel in your car and properly tune it and make about the same at that boost pressure. I've already done that much and we got 340RWHP out of the setup at ~14psi.
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