Any opinions on fuel regulator setup on S4 rail - pics
#1
Any opinions on fuel regulator setup on S4 rail - pics
Just thought I'd ask for opinions on my AEM FPR mounted at the end of an S4 rail. I'm mounting this on my S5 TII because the stock regulator couldn't handle the additional idle flow from a rewired Walbro. I suspect the return line restriction was just too small.
And how long are the stock S4 bolts holding the rail on? They must be at least 40mm long due to the cast mounting bosses.
And how long are the stock S4 bolts holding the rail on? They must be at least 40mm long due to the cast mounting bosses.
#7
Success - FPR on a S4 rail
Well, I made it work with a custom bracket, but wouldn't recommend this mod. Pulling the UIM is a bitch as it is, and installing a FPR at the end of the rail makes it even more of a PITA. I did it for the stealth installation tho, and it beats a giant FPR mounted to the firewall IMHO. Setting the fuel pressure is no problem since the adjusting screw faces out with plenty of access.
An elbow for the fuel pressure gage sender provided clearance to the throttle cable bracket, but adds even more clutter to an already crowded spot.
Enjoy the pics.
An elbow for the fuel pressure gage sender provided clearance to the throttle cable bracket, but adds even more clutter to an already crowded spot.
Enjoy the pics.
Trending Topics
#11
Actually I know quite a few TII and FD owners who upgrade the FPR. They just typically mount it to the firewall or near the frontside of the secondary rail and run -6 hose to it. i wanted to try something different and needed the additional return flow and pressure adjustability due to the fuel pump upgrade.
Eventually I'll run a variable speed pump controller to minimize the return flow.
Eventually I'll run a variable speed pump controller to minimize the return flow.
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM