Injectors for 330bhp

[BrianB]

I was looking at deka 630s, but is there any alternatives?

 

[RSTuning]

Use the 630's

yoi won't have any issues with those and you have enough to go for 400 if you want

 

[geznay]

What % duty cycle will these run at 330bhp?

 

[Dan519]

What % duty cycle will these run at 330bhp?

depends what fuel line/regulator setup you run. on a ph1 setup with return line and regulator on the rail with boost/vac pressure correction the megane injectors (~480cc) will do over 300bhp with ease, probably 320bhp at 100% duty and ~11.8:1 AFR

630s will be doing in the region of 70% duty at 330bhp

On a single fuel line setup, the flow capacity is greatly reduced in relation to duty. Without pressure compensation you are in effect reducing the fuel pressure with every increase in boost pressure. 480s will do roughly 270-280bhp on this setup. 630s would be running something like 75-80% duty to achieve 330bhp. However, if you can achieve greater airflow for less boost, then you give yourself more headroom for injector flow capacity.

 

[BrianB]

Anyone know the cheapest place to get them from in the uk?