Injector

[Fernflex]

Whats the best injector for 2.7L engine with 288 cam, big valves, header, exhaust, high compression, bigget tb, no afm, race valve springs, msd 6al and MS?

And many other things!

[MR 325]

If you have MS you can run any size you want honestly. I'd run 24lb.

[jlevie]

With a MegaSquirt you could run pretty much any injectors, but I doubut that you need bigger than 17lb injectors for that engine.

[Fernflex]

Right know I have 17 or 17.5 and Im getting the ms soon.

The best thing about bigger injector is that you run a lower duty cycle on them!

[Jaxx_]

Right know I have 17 or 17.5 and Im getting the ms soon.

The best thing about bigger injector is that you run a lower duty cycle on them!

the worst thing about bigger injectors is horrible idle! ;) Make sure not to go too big otherwise the injector pulse time for idle gets too small compared to the opening/closing time. What this translates to it difficulty tuning idle because opening/closing time is constant and will always be added to the pulse width.

Hope that makes sense. It's exaggerated with lower RPMs and bigger injectors. You're fine until you get really large and your motor is relatively small. realistically I wouldn't worry about it until about 50lb/hr injectors.

[acolella76]

24lbs is too big, I'd go with 17.5# M50 injectors or bosch 19lb injectors.

[Fernflex]

24lbs is too big, I'd go with 17.5# M50 injectors or bosch 19lb injectors.

I will stay with 17.5 installed and the 19 spare just in case!

Thank you all

[jules325i]

24lbs is too big, I'd go with 17.5# M50 injectors or bosch 19lb injectors.

Where can i get Bosch 19lb injectors.

[acolella76]

Where can i get Bosch 19lb injectors.

well... my for sale thread is a good start ;)