I am planning on building an ls/vtec with either JDM ITR pistons or CTR's. Now everyone says I can use the stock si ecu and injectors if I go with the JDM ITR's, but what about if I want to do the CTR's? Will I need the 310cc injectors? How big of an effect will they have on fuel mileage? What do you guys run/recommend?

PS I'll 'only' be running CTR cams as well.

Thanks

 

I'd definately clay the pistons when you install them to make sure you'll have clearance. I'd also recommend the 310's and bumping up the fuel pressure. Remember rich is better than lean.

 

please newbie
leaner is always meaner!

 

Will I need the 310cc injectors for the CTR pistons?

Can I use the stock injectors for the JDM ITR pistons?


PS Please, no more stupid comments. These are the kinds of responses I get on CSi.