ecoboost_xsport
Mad Scientist
- Joined
- March 29, 2015
- Messages
- 573
- Reaction score
- 309
- City, State
- Orangevale, California
- Year, Model & Trim Level
- 2015 Ford Explorer Sport
I recently revisited a project on the platform's low pressure fuel pump (LPFP) and how to upgrade it further than the DW300c. Some of you know I've been working on a dual pump setup, and it's moving along fine. I'm almost finished with the controlling part of it (the bucket is complete and fitment is 100%). Once that is nailed down, this will be a viable solution.
However, I recently became reinvigorated by @802SHO to revisit an attempt that I made over a year ago and had given up on, likely too early. Full disclosure, I can't take all the credit for this one. @802SHO gets the kudos here for giving me a new way to look at the problem and he will be the first one to be running one of these monster pumps in his new setup soon!
So what is it? Well, a Walbro 525 fit test...yes...a Hellcat pump fits! It needs testing and there are a few small concerns regarding flow at the higher pressures this platform sees (the 525 is very strong at lower pressures, but starts to hit a wall higher up) as well as what may happen since we aren't bypassing more fuel with the larger pump, which MAY cause jet pump and erratic idle issues. These are issues that may be able to be addressed (mechanically or via tuning) but it's too early to say. Testing to ensue here shortly!
The dual pump setup may still be a better route to go, but it's hard to deny the price point of a Hellcat pump and some fuel bucket modification (it's deceiving...there's a lot more involved than the photos show).
Here to give the community options!!!
However, I recently became reinvigorated by @802SHO to revisit an attempt that I made over a year ago and had given up on, likely too early. Full disclosure, I can't take all the credit for this one. @802SHO gets the kudos here for giving me a new way to look at the problem and he will be the first one to be running one of these monster pumps in his new setup soon!
So what is it? Well, a Walbro 525 fit test...yes...a Hellcat pump fits! It needs testing and there are a few small concerns regarding flow at the higher pressures this platform sees (the 525 is very strong at lower pressures, but starts to hit a wall higher up) as well as what may happen since we aren't bypassing more fuel with the larger pump, which MAY cause jet pump and erratic idle issues. These are issues that may be able to be addressed (mechanically or via tuning) but it's too early to say. Testing to ensue here shortly!
The dual pump setup may still be a better route to go, but it's hard to deny the price point of a Hellcat pump and some fuel bucket modification (it's deceiving...there's a lot more involved than the photos show).
Here to give the community options!!!