Got a Snap-On MT257 pulse adapter from eBay for $160 and Innova 5568 tach and time light from NAPA. Truck has a new Oregon Fuel Injection pump with less than 10k miles on it and just recently purchased pop tested B.B. code Delphi’s (Thanks @Thewespaul).
Had did my best guesswork for timing it as the last time at the truck was timed was at The Oilburners Texas IDI meet last fall....and I was running very advanced then (19*??). Turns out I was compensating for bad eBay Stanadyne D codes...and at the proper 8.5* btdc my truck shook and smoked horribly.
So after I got the Delphi’s in I advanced it a dimes with from the old mark from when it was timed with the bad injectors, as the new ones had retarded my timing and it was obvious. Turns out I was at about 2* btdc when I hooked up my equipment to it.
After getting the equipment on it tonight and getting it timed you’d think I had a new engine installed. Tremendous improvements, I was honestly shocked at the incredible difference a correct fuel system and properly timed engine makes.
I promise no matter how good you believe you are at timing by ear, smoke and mileage it is humbling to see how far off you can be.
Even with my engine starting at the first rotation of the starter when cold and getting 16.4mpg, always track my mpg’s very tanks. I’m particular about that and fuel up at the same pump and only click the pump to the lowest setting to avoid the fuel getting frothy to accurately measure my fuel against my miles.
And hell, I was about 6.5* retarded. Now I have more power, better sound and probably better mpg’s and will confirm after my first fill up later next week.
Will be signing up on the timing registry for Katy/Houston area to give others a chance at realizing their truck’s maximum potential.
Y’all have been invaluable and now I want to give something back.
Had did my best guesswork for timing it as the last time at the truck was timed was at The Oilburners Texas IDI meet last fall....and I was running very advanced then (19*??). Turns out I was compensating for bad eBay Stanadyne D codes...and at the proper 8.5* btdc my truck shook and smoked horribly.
So after I got the Delphi’s in I advanced it a dimes with from the old mark from when it was timed with the bad injectors, as the new ones had retarded my timing and it was obvious. Turns out I was at about 2* btdc when I hooked up my equipment to it.
After getting the equipment on it tonight and getting it timed you’d think I had a new engine installed. Tremendous improvements, I was honestly shocked at the incredible difference a correct fuel system and properly timed engine makes.
I promise no matter how good you believe you are at timing by ear, smoke and mileage it is humbling to see how far off you can be.
Even with my engine starting at the first rotation of the starter when cold and getting 16.4mpg, always track my mpg’s very tanks. I’m particular about that and fuel up at the same pump and only click the pump to the lowest setting to avoid the fuel getting frothy to accurately measure my fuel against my miles.
And hell, I was about 6.5* retarded. Now I have more power, better sound and probably better mpg’s and will confirm after my first fill up later next week.
Will be signing up on the timing registry for Katy/Houston area to give others a chance at realizing their truck’s maximum potential.
Y’all have been invaluable and now I want to give something back.