31-05-2012, 08:31 PM
Just an idea I had 
while fiddling at work the other day 
and after thinking about getting Lucas injectors to just break higher, instead of buying bosch injectors..
Theory - You could easily increase the break pressures of bosch injectors by shimming the internal spring, literally by adding like 0.1mm to the spring preload you would gain about 10bar. But would it be of any advantage?
If they broke later then the injection timing would be more retarded (which could be solved by advancing the pump slightly on the slots or even by a tooth on the cambelt if it was that drastic, which I doubt.) But would you get more fuel in at the higher pressure or would the injection period be shorter because of the later pressure breaking? Not something im sure anybody could certainly answer, but me and Dave have just had a chat about it and it might be worth a try at least....
Genuine thoughts/opinions welcome....
while fiddling at work the other day and after thinking about getting Lucas injectors to just break higher, instead of buying bosch injectors..Theory - You could easily increase the break pressures of bosch injectors by shimming the internal spring, literally by adding like 0.1mm to the spring preload you would gain about 10bar. But would it be of any advantage?
If they broke later then the injection timing would be more retarded (which could be solved by advancing the pump slightly on the slots or even by a tooth on the cambelt if it was that drastic, which I doubt.) But would you get more fuel in at the higher pressure or would the injection period be shorter because of the later pressure breaking? Not something im sure anybody could certainly answer, but me and Dave have just had a chat about it and it might be worth a try at least....
Genuine thoughts/opinions welcome....