12 valve questions
#1
#2
Hey Bigrich. Welcome to the site. I moved this here so that it would get better exposure from the members who know your truck the best. Make sure you fill out your signature so they can see exactly what you have and what other things you have already done to it. This helps them answer your questions better.
#6
Second gen injectors don't work on first gens; they operate at too high of a pressure.
As for first gen injectors, there are two breeds; until 91.5 there were 9mm injectors stock, after that there were 7mm injectors stock. The 9mm injectors can support 300 HP with a maxed injection pump. Depending on your goals, that might be enough.
All off-the-shelf aftermarket injectors are 7mm; they can be used in the earlier trucks, but they require an adapter. The Bosch 190's, which are often labelled as "40-50 HP" injectors, are a 7mm injector that flows about as much as the earlier 9mm injectors.
The most prolific performance-minded injector in the first gen community is the Lucas Prince of Darkness (POD) injector. They cost $400 and support 350-400 HP, but some are really sloppy and smoky.
After POD's, most people in the big-power arena jump straight to customs. I think Dynomite Diesel Performance used to make bigger off-the-shelf injectors, but their website doesn't show them any longer. Somebody probably has something out there, but it'd be news for me.
As for first gen injectors, there are two breeds; until 91.5 there were 9mm injectors stock, after that there were 7mm injectors stock. The 9mm injectors can support 300 HP with a maxed injection pump. Depending on your goals, that might be enough.
All off-the-shelf aftermarket injectors are 7mm; they can be used in the earlier trucks, but they require an adapter. The Bosch 190's, which are often labelled as "40-50 HP" injectors, are a 7mm injector that flows about as much as the earlier 9mm injectors.
The most prolific performance-minded injector in the first gen community is the Lucas Prince of Darkness (POD) injector. They cost $400 and support 350-400 HP, but some are really sloppy and smoky.
After POD's, most people in the big-power arena jump straight to customs. I think Dynomite Diesel Performance used to make bigger off-the-shelf injectors, but their website doesn't show them any longer. Somebody probably has something out there, but it'd be news for me.
#7
#8
#10
Yeah i think it was buddha or new era that built em 600+ hp! second injectors do not work, but the nozzles do, however they r a little different pattern, n spray somewhat out of the piston "bowl" but they will work, the injectors have to takin to a shop and repoped though. Off the self, r the rv's, and PODs. PDR has their offerings that they list, off the shelf i dont know. but custom cut, not listed, gotta call n ask, r our options after like 50 ponies.