I used 37lb Lucas injectors on when I had my supercharger.




Jason
99 Z24

LG0/LD9 for Life
10 Year Bash Veteren

LSJ's work great. PS, have a spare set hanging around
550cc RC's would work even better if you plan to upgrade later/ PS, have a spare set of those as well
Both of them are high impedence.

I'm pretty certain if you have a high or low impedance driver for your injectors you better stick with that set-up or your injector control may be garbage and you could burn up a high impedance setup with a low impedance injector unless you have resistors run with the system. Check out an article and save a headache.

www.hotrod.com/techarticles/hrdp_1211_low_impedance_vs_high_impedance_fuel_injectors/

How much boost you plan to run will tell you what injector to go with....if you're using a RRFPR you could get away with a smaller injector, but I'm a turbo guy so that may not apply if you're not running that type of set-up. If you're boosting all day long I think a right sized injector will do better for you particularly with the GM tune and 2 BAR map sensor. RC's website has some calculators for injector sizing, but I'm sure other guys can give you reference for their boost level and injector size.

me and john higgins ran/run the LSJ stage 2 injectors. they are 42# and are completely plug and play. at least with 00-02 they are.. dunno about 99.



RIP silver car. You will be missed.

They are plug-n-play on 99 j-bodies.




PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO

You have to modify the fuel rail to fit the LSJ'S. not too hard at all though.

gtpsunfire wrote:You have to modify the fuel rail to fit the LSJ'S. not too hard at all though.

i dont know how tall you would need but they make these neat little cups that extend the length of the injector. i got them with my plug n play 60# 5.3 truck injectors.



RIP silver car. You will be missed.