When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The reason you cannot find it is because its not visible without an inspection mirror and the right angle while standing on your head holding a beer with 10 people trying to help that are completely useless.
The blowoff valve is down by the IPR socket on the bottom of the Hpop.
This is a new thing for me to learn about.
There is an o-ring on it that can go bad. you have to remove the pump to replace it.
But.
for 250 dollars..
Why not upgrade?
Joey will replace all the seals and make sure its working right.
I'm sick of 3200 PSI at 80% DC. haha. Stupid blow off Valve.
I've never understood duty cycke, what does it mean? i see guys talking about it and it seems the lower it is the better, right? and is lower psi good too or higher?
I've never understood duty cycke, what does it mean? i see guys talking about it and it seems the lower it is the better, right? and is lower psi good too or higher?
Duty Cycle is a measurement of how hard the pump is working to produce the PSI needed for running the injectors.
Since our pump always pumps at a constant speed of whatever the engine is at, and is not a variable ramped pump, it regulates the flow of the oil with the IPR.
Thats why the IPR is so important.
I'm not sure how it measures the DC, but if your getting over 60% dc to get 3kpsi, you need some pump work.
The 15's dont quite pump so much, so we gotta work the pump harder to get the higher PSI.
The 17's can get 3200 at 40%, Well, the truck I scanned the other day was getting 3200 at 40%.
So, the percentage really means, its flowing 40% of its capacity to pump at x given PSI.
Does that make any sense?
So many thing work correctly in my brain, but they dont come out on paper.
Talyn's description is pretty close. Duty cycle is simply how much the IPR is "active" for a given amount of time. A simplified explanation... if duty cycle is 40% then the IPR is active (open, commanded on by the PCM, whatever you want to call it) 24 seconds out of every minute. 60% duty cycle means its active 36 seconds out of every minute. 80% would be 48 seconds... If duty cycle is high and pressure is low, that means the pump is not keeping up with the demand called for by the PCM. If you have good HPO pressure and the duty cycle isn't sky high, that means the pump is healthy and doing its job good.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.