Hey guys going to be running a HPI 51mm with my stroker 116" that im getting ready to build myself . Im pretty sure my stock injectors from my 02 FLHPI wont be up to the tasks from what ive read so far .

I need to know what size injectors i need to run and where would be the best place to get them from ?

I forgot to add that ill be useing the T-max with autotune if that makes a difference .

thanks
Brent

 

42 lbs an hour they are good for 130/135 hp.

 

Marren Fuel Injectors have a stage I good for about 45 lbs hr. (5.70 gm/p/sec.)
I think these things are rated at 70% actual, something like that.
Be sure and tell the ECM or whatever what size they are so it can figure the pulse rate.

 

On our 117", we use 55-58 mm HPI's with their yellow band injectors, or equivilant.

 

Also 53 lbs an hour a good. But unless your motor is going to make more then 130 hp 5.3 grams per second will be perfect.

My 2 cents ...
We build 78hp all they way 530 hp turbo and superchargers engines. We do many test's on injectors.

I hope this helps.

Also I know I quoted my self> LOL.......