sleepymike 15 Posted July 30, 2014 Report Share Posted July 30, 2014 Ok so last year i was running Siemen Deka 630cc injectors and running 400bhp at 70% duty. I now am planning to run 550-600bhp, I upgraded to Siemen 875cc injectors but am being told they may be a bit big for my needs. As it's still not been mapped can anyone suggest a decent inbetween injector size please. Link to post Share on other sites
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