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FS: RC 550cc Injectors


SiColin

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this is from Evans-Tuning.com

 

Make sure there are no vacuum or fuel pressure leaks as a result of torn or old o-rings. Also, make sure your fuel injectors are sized appropriately for the power that you are trying to make. Below is a quick guideline for injector to power rating given a base fuel pressure between 40-50psi:

 

* 240cc/min (stock): 170-180whp

* 310cc/min: 200-240whp

* 370cc/min: 250-275whp

* 440cc/min: 300-325whp

* 550cc/min:350-375whp

* 650cc/min: 400-425whp

* 750cc/min: 450-475whp

* 1000cc/min: 600whp

* 1200cc/min: 700whp

* 1600cc/min: 850whp

 

*Note that more power can be made with the same size injector with higher base fuel pressures. You must have a fuel pump that sustain high fuel pressures. The BEST pump we have found is the Bosch 044 inline fuel pump. Using a Walbro 255lph HP intank fuel pump, and the Bosch 044 fuel pump inline fuel pressure can be held in the 120-130 psi range. With high base fuel pressures of 60-70psi, 20-30% more cc/min flow can be had from the same injector size. If using E85 fuel, all injector ratings will be approximately 30% less.

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Thanks for the links guys.

 

Unless your motor flows crazy good you won't see more then 400whp out of these injectors.

 

I'll take $150 this weekend since I really want to buy some 880s before I go in to get tuned now that the motors broke in.

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