Originally Posted by Fuel Injector Clinic

Thanks to the others for helping out with this and linking to our injector flow calculator, thats always helpful when figuring out what injector size you'll need.

For 500 whp on gasoline you could run our 1100cc high impedance injector with 55-60 psi base fuel pressure and get the best of both worlds as far as supporting your power goals and tuning super nicely.

You could also go with our 1250cc low impedance injector (should be able to make it to 500 whp but it will be close), or of course our 1450cc low impedance injector. The low impedance injectors are an older design compared to the high impedance injectors and can be a little more work to tune in the larger sizes, but we have many EvoM users who also very happily run these.

Our 1650cc high impedance injector is also an option and will cover you all around, but the cost is higher than any of the other options I presented here. It would do a great job now and also in the future though even if you want to make more power or switch to E85.

You can find more info about any of these injectors on our website at www.fuelinjectorclinic.com or give us a call directly at (561) 427-0082.