So I'm looking at injectors and I come across these three different types. Anyone know the advantages/disadvantages of each?

 

And how each work plz.

 

I dont have your answer but the actual spray pattern is very important, some cars even have injectors made just for a specific cylinder based on the angle that it sprays the fuel into the cylinder.

If you find out that one of these types of injectors seems to be better, maybe it atomizes the fuel better, then maybe your engine wont run as well with the fuel that has been overatomized, maybe being overatomized will actually help.

Contact Jim Linder and his people, do a google search, he is the injector guru in Indianapolis.

 

I AM NO EXPERT, but just searching "pintle vs lucas injector" comes up with a few different discussions and images of the difference. As far as I have seen there's not much difference until you get to righ revving, maxed out duty cycle and even then it seems that cars are making a a lot of power on either style.

Lucas (disk) injectors seem to have a better on/off response time but the spray pattern (atomization) is potentially inferior to the pintle injector. So the pintle is better for part throttle, low turbulence, low rpm applications like passenger cars that do not usually go above 3000rpm (the rpm speed is arbitrary). It seems that lucas injectors might be better for high revving, high port velocity/turbulence engines since the spray is more direct and the turbulence and intake charge velocity is supposed to help atomize the fuel.

The more direct spray pattern might also help cool intake valves in high horsepower applications but other than that I don't think that it really matters. I could be totally inaccurate though.

Though I am sure they have a biased opinion http://www.rceng.com might be able to shed some light on what the difference is.

Pirate

Oh and there is also a difference between saturated and Peak and Hold style Lucas and Pintle injectors that affect on/off ramp speed and part throttle characteristics that I will not get into.

 

thanks Pirate. i searched that and heres what came up...

http://www.supras.com/06/techc...ID=83

I was also debating peak and hold vs.s saturated as well but it sounds like the peak and hold type is better anyways. (I run an ems so I could go either way)

I prolly get the rc 750's just kinda seein what else is out there.