1989-1993 Cummins® Performance Tips
Posted by Diesel Conversion Specialists® on Jan 30th 2024
Here are some links to articles and YouTube videos on fuel pin adjustments/replacements, smoke screw adjustments, etc.
https://www.youtube.com/watch?v=agQXmV90G6Y&feature=youtu.be
http://www.youtube.com/watch?v=6zPnjE3neoM&noredirect=1
Bosch® VE Injector Pump Governor Spring Swap
The 1989-1993 Cummins® Bosch VE injector pump starts to drop off fuel as early as 2300 rpm, and it will pretty much stop at 2500 rpm. This too low for the Ford® F-550's and 4.88 gears, and not exactly ideal for 3.73's either! A good remedy for this issue is to swap out the fuel pin and governor springs with a kit like this one by BD Diesel.