Thread: 42.5# injectors?

Doesn't Curtis use the Lucus' ones?

Originally Posted by fst

any cons on the lucas 42.5# injectors? i tried a search on the other forum but even on a T1 line the search sucks. any help is appreciated

A lot of people run the Lucas w/o any problems. You should be fine. I was going to go with those, but got a deal on the Lightning injectors.

ran them for awhile, never had any issues. would run them again.

aren't the lucas ones affliated with GM in some way? I thought I read that somewhere.

Originally Posted by my97gtp

I remember someone saying one of them had a better spray pattern for the 3800 and i think it was the lucas. I know they have both been run with sucess.

I heard the same thing about the Lucas. I am currently running 39# Cobra injectors which are made similar to the lightning 42.5s. They have been fine. I've heard our cars prefer a pencil pattern spray because it has further to travel than in Fords. Both the 39# and 42.5# are cone patterns. This is good for dispersal if your injector is further down the runner.

All that being said, I've never found anyone who had any hard data to support that one runs better in our cars than the other. The other thing I've heard is that the Lucas 42.5s are easier to tune at lower rpms than the motron 60s but I know that's not what you asked.

I think the best advice has been given. Go with which ever one you can get the best deal on. You'll be OK.

lucas are running strong in ** car

42.5's are great but you gotta have a way to tune the PCM for them, Powertuner, HPT or at least an AFC.

Without a way to compensate for the extra fuel your car will run like crap.

Lucas 42.5's, I have not heard anything wrong with them. most of everyone I know over here have them, and like them.

good luck!!

Originally Posted by suprchrgd

42.5's here for about a year. no issues as of yet.

i didn't think the 42.5's were good much past 12's?

well they are good into the low 12's. my ipw's are around 18 ms at 6300rpm. They are close to being done. Hopefully they can be good for 11s we'll see though.

Originally Posted by Reptile

FWIW, The Cobras can run deep in 11's on their stock 42.5 injectors. Might not have much value here, but I just thought I'd put that in.

That's because they have 8 cylinders. They need to make less power per cylinder to get the same performance.

That's why the 4cyl turbo guys need HUGE injectors to make good power.