55psi on stock injectors and fuel pump = ok?
#1
Advanced
Thread Starter
Join Date: Apr 2003
Location: Latvia
Posts: 91
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Am I safe?
Previous owner of car did set 55psi (Lidsey AFPR) - (fuel rail gauge 50psi at idle 55psi ar rpm's) on stock injectors and fuel pump as well as rised turbo to 16psi.
I am so sorry if I'm asking a dumb questions......
Previous owner of car did set 55psi (Lidsey AFPR) - (fuel rail gauge 50psi at idle 55psi ar rpm's) on stock injectors and fuel pump as well as rised turbo to 16psi.
I am so sorry if I'm asking a dumb questions......
#3
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
That's almost 4 bar fuel pressure plus 1 bar from the boost pressure. That will put extra stress on the injectors and the DME computer; very possible that you will break them. Also, the fuel pump will have only a little better than 50% capacity to put fuel into the engine, which may or may not matter.
#4
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I've run 60psi at the fuel rail for 4+ years. The big question isn't if the injectors or fuel pump are OK but are the chips in the car giving the right mixtures with that fuel pressure. You need a wide band to know if the mixture is good.
#5
Basic Sponsor
Rennlist
Site Sponsor
Rennlist
Site Sponsor
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
That's no problem for a Bosch injector.
__________________
Mike or Dave Lindsey
www.lindseyracing.com
U.S. 1-877-943-3565
Other 1-405-947-0137
Mike or Dave Lindsey
www.lindseyracing.com
U.S. 1-877-943-3565
Other 1-405-947-0137
#6
Advanced
Thread Starter
Join Date: Apr 2003
Location: Latvia
Posts: 91
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
No, I do not have a wideband, just a narrow one, which shows i'm running a little rich. He told me that he rised a little of lb via mapping chips, but i'm not sure what does it means?
Do I understand correcly? By chip you are adjusting injector duty cycle to optimise air/fuel ratio?
Do I understand correcly? By chip you are adjusting injector duty cycle to optimise air/fuel ratio?
Trending Topics
#8
Race Car
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
to up the capacity of the injector output
I have ran at higher pressure on E85 for some time.
I just had an injector fail but it most likely due to me running them at 100% DC and not pressure.
I have ran at higher pressure on E85 for some time.
I just had an injector fail but it most likely due to me running them at 100% DC and not pressure.