anyone?
cr133r said:Well.... I think its a safety factor...
I had a fuse blow for the pump a while back(primary pump) which caused both pumps to turn off since the second pump is triggered off the first. To get home, not knowing what really happened, I just wired the second pump to run by itself(12V direct) while the primary was off....
I was easily able to run 1.5BAR with absolutely no indication of fuel pressure loss. I didn't turn the boost up for more testing, but I'm sure it could go a bit higher. I believe I could easily just run one pump at hight boost, but I have yet to test this.....
Interesting to note, on another web page, they showed that the Walbro pump wasn't as good as the stock Supra pump when tested by RC injectors. On a test bench, this could very well be true. But looking at some of the other info, I noticed that the Walbro pulls a LOT less current(I think less than half) than the factory pump. With such high current, you can't help but get some significant voltage loss to the factory pump, which may explain the differences between the tests. I know a Bosch 30AMP relay tends to MELT when running two factory pumps at 12v.