Announcements
-
Similar Content
-
-
Latest Posts
-
I think he meant Haltech meant that the Haltech PDM doesn't like driving loads with PWM. Not that the pumps don't like it. Think about the heatsinks that we strap onto SSRs for just handling a single PWM load. Then picture how much heatsinking is visible on a Haltech ECU or PDM. None, right? So it's no surprise that they don't want to run PWM loads directly. -
By Murray_Calavera · Posted
For example, the Walbro 525 (F90000285) is the factory fuel pump in the Hellcat which has PWM from factory. These pumps like PWM, it extends the life of the pump. -
-
I think the PDM outputs (the ones that can actually output big power) are not intended to be driven like that. They're either on or off, switched only at a low rate. To do PWM you need to use an ECU output that is PWM friendly (ie, able to be run at high frequency) and drive a separate SSR, instead of trying to thrash the (presumably) SSRs in the PDM.
-
+1 on the FPG fuel hat! funnily enough I tried to PWM control my fuel pump (Walbro/Ti Auto 450l/hr) through the PDM and it didn’t like it. Scott from Haltech said they don’t like it? So I just run mine at 100%.
-
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now