Some Help With Injectors

[Richie O]

On this side of the pond the ( second gens ) p pump's, in the dodge trucks anyway, run a higher pop pressure then the ( first gen ) VE's. My 93 stock sticks are stamped 245 bar.

[KTA]

The other day I found my stock 89 injectors but have not had time to take them apart and verify the spray angles. I will try to do that this weekend as the be all to end all this is what it is rather than someone said.

[KTA]

I can't believe you all made me get out my books where I did all this stuff like 10 years ago. SHEESH!!! LOL

Here is the facts
1989-1991 early Non IC CPL 804
Bosch Injector 0432 133 888 9mm shank
Body code 9522 has no edge filter
Nozzle number 0433 175 005 code 7782
4x.013"/3600psi 155deg sac-less type

late 1991-1993 IC CPL 1351/1579
Bosch Injector0432 133 877 7mm shank
Body Code 8955 has edge filter
Nozzle number 0433 175 033 code 9093
6x.009"/3600psi 145deg sac-less type

Lucas POD 200hp Injector number LJC6760524
4x.015"/3750psi unknown

[KTA]

As for spray angles it just depends on what you want. The correct spray angle produces the least smoke, lowest emissions, least crankcase contamination, and least wear assuming the appropriate timing. Extremely high timing can negate all those factors. Wide spray angles can make more power, and typicly do, but they also produce more idle smoke and emissions assuming appropriate timing and piston bowl placement. In other words spraying in the bowl. If it sprays out of the bowl from too wide a spray angle or too much timing it will result in much more rapid cylinder wear, uneven cylinder temperatures, more crankcase contamination, and more idle smoke. Your likely hood of melting a piston is also much greater if you do this. There are work arounds to prevent such things such as over fueling to the point of dropping cylinder temps, but play at your own risk.

Oh and if somebody wants to send me a Lucas nozzle I will check its spray angle and add it to the list.

[keithhill1]

ok well i have a question that relates to this thread... i have a 95 ram with a shot engine..... i found a rebuilt engine from an 89 dodge ram and i was wondering if i put my head and p pump off my 95 engine on this block will i be able to run the 155 degree 370 marine injectors and be better off since the pistons in a 1st gen are for the 155 degree spray pattern???? i can get this engine for 600 bucks and if it will work i need to jump on it!!! any info would be great... oh yeah i also heard there is a difference in piston height is this true?

[KTA]

Yes it will work. No its not ideal. Cummins stated the rods in the old 6B to only be used for 2500rpm and slower applications. The later rods are supposed to be stronger and are suiteable for up to 3000rpm use. Now no doubt both versions have been pushed past theri design limits multiple times, but for maimum durability you would need the marine dual NI pistons and the new style rods. But for $600 to get your truck driving I say go for it and don't worry about it, just don't thrash the hell out of it all the time.