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  1. kidturbo

    Injector Spray Pattern - LMM

    Sting there is certainly less stress applied on the internals by down shifting. Might sound like it's working harder all revved up, but the CTS data tells the tale. In my hill tests, the previous owners snow plowing fan shroud delete proved to be the limiting factor. She couldn't stay cool...
  2. kidturbo

    Injector Spray Pattern - LMM

    A little air pressure doesn't hurt the process either.. It's funny how some of these just crack open, while others blow clear thru and can burn a ring and steel pin clip in half with ease. I did a little load comparison last week towing a 10k boat through the mountains of I77 with my latest...
  3. kidturbo

    Injector Spray Pattern - LMM

    What we did find concerning but unrelated to fueling, the disregard for replacing an oil pump and reluctor ring when this engine broke the crank.. Impressive work guys, proud to show this off for ya... Someone took the oil pump apart and cleaned it. Then they used lock tight on the gear nut...
  4. kidturbo

    Injector Spray Pattern - LMM

    Finished disassembly of the block above. When the piston failed, it was directly in line with a port on the nozzle. The aluminum above the pin looks like someone took a torch to it. Even cutting through the clip and oil ring. Amazing the amount of heat applied to such a small area when they go...
  5. kidturbo

    GM head gaskets or Victor Reinz?

    We used the LML gaskets on the marine builds, then my engine builder who works at dealership started seeing some failures. Since we haven't fired them up yet, can't say either way. But at least we can change them easily if need be.. Sent from my SAMSUNG-SM-G870A using Tapatalk
  6. kidturbo

    Twins with Twins, Anyone?

    Those came fully polished, but I've spent an hour or two buffing my own fingerprints off them... :roflmao: I discovered a great little shop here in Ohio that took the up pipes from raw welded SS to what you see above. Has a slick multi wheel setup, one for each stage of the process. Kinda...
  7. kidturbo

    Twins with Twins, Anyone?

    Thanks. It's taken a bundle of paper and few printer ink cartridges to get all these custom pieces right. Sketch, print, cut, fit, repeat. I was planning to fire em up this week with stock oil filters, then soon discovered those won't bolt up now cause of header clearance. So the oil cooler...
  8. kidturbo

    Injector Spray Pattern - LMM

    And to your much appreciated research Fingers, check out this 6.0L Powerstroke piston I cracked several years back. This one might be a good example of thermal shock cracking Engine was stock, hot tune added, heads started to lift. Typical 6 leaker downhill slide. I continued to run it till she...
  9. kidturbo

    Injector Spray Pattern - LMM

    It's certainly a chicken or egg conundrum.. That's produced a wide spectrum of answers from what I consider very seasoned professionals. And now there's this trend emerging, which can likely be replicated, or avoided. I have a theory based purely on speculation and little data available at this...
  10. kidturbo

    Injector Spray Pattern - LMM

    That sounds reasonable, as I kinda recall the discussion on pressures vs timing BTDC and piston stress points. Unlike the stockers I've seen, this Mahle didn't crack across the top or the lip. Only a hole in the bowl, sure wasn't what I expected... Then realized there was no improved oiling...
  11. kidturbo

    Injector Spray Pattern - LMM

    Here is the video of engine above when piston let go. Total time of original video from engine start to the end was just over 2 minutes. Also remember this boat has a 6sp Allison with std converter in there. So about as close to your typical truck setup as you'll find, in a boat. EFI...
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