Search results

  1. kidturbo

    Twins with Twins, Anyone?

    Thanks for the help Jon. I really thought this TBC would give us the added protection needed for extended high temp operation. Recall when I spoke with Swain about the two coating options, this was the best compound for long term heat dissipation. The gold is geared more towards absorbing a...
  2. kidturbo

    Twins with Twins, Anyone?

    The 750hp Cummins version out there went through a 80% WOT duty cycle for 24hrs on dyno before release. But that is on a Monotherm piston engine under strict military specs. And I've heard mixed reviews on it's performance depending on who ya ask.. So we are just throwing darts blindfolded at...
  3. kidturbo

    Twins with Twins, Anyone?

    Goal for this setup has always been make 900hp reliably with 1000hr rebuild schedule. To many of you that might sound like your average daily driver. But remember, you have a 12k lb sled hooked to ya all the time... I have oil samples from this engine in some jars on the bench. Have a little...
  4. kidturbo

    Twins with Twins, Anyone?

    Since I have two to work on, I'm gonna drop the second engine off to you on the way home next week. You've done a couple race engine rebuilds before I hear.. :rofl: I actually wanted to see the gap lines on that one since it pushed the needle 200hp higher than this engine. And EGT was good...
  5. kidturbo

    Twins with Twins, Anyone?

    This was a dull grey looking on top also, and somewhat malleable to the touch. I even called Swain Tech and inquired about it before we dropped em in. Said that was normal. I think TBC is pretty solid tech in gas race engine pistons. However they don't have a 30k psi 7 hole Waterpik head...
  6. kidturbo

    Twins with Twins, Anyone?

    Ah crap, we had the . in the wrong place. Thought that read 00.12 spec. :roflmao: We had full intentions to recheck em after the dyno anyways, so I won't bust on him too bad. NASCAR Tech grad, so they taught em to build loose. But a paint stirrer would probably been tighter..
  7. kidturbo

    Twins with Twins, Anyone?

    However you can take credit for leaving #2 rocker arm loose if ya want.. Lobe and lifter all good, so calling human error on GM Master Tech Dustin D. Who better get some new feelers off the SnapOn man. LoL... Sent from my SAMSUNG-SM-G890A using Tapatalk
  8. kidturbo

    Twins with Twins, Anyone?

    Yeah but you don't know what you're talking about... is purely coincidental. Sent from my SAMSUNG-SM-G890A using Tapatalk
  9. kidturbo

    Twins with Twins, Anyone?

    Ok I pulled the studs and spun it over to get a better look at everthing. Some mild scaring on couple cylinder walls, but nothing ya can feel with a fingernail. So that's good. Here is some as-is pics, and good look at #2 after I wiped top off with alcohol on a smooth rag. Looks to be mostly...
  10. kidturbo

    Twins with Twins, Anyone?

    Sounds like a question for Fingers. My plan is move onto the monotherm testing, and then this issue is moot for marine application. Sent from my SAMSUNG-SM-G890A using Tapatalk
  11. kidturbo

    LMM: Ever Seen a New Engine Do This?

    They put the wrong size top ring land in one piston of the first couple sets of Dmax race ever cast. I won that prize back in 2010. Point is, don't throw your engine builder under a bus based on what those guys say alone. Once had a very astound engine machinist refuse to bore a Dmax...
  12. kidturbo

    Twins with Twins, Anyone?

    Ya had swain tech do em. It's the white TBC. I haven't checked any others yet, they all look fine at first glance. What's correct way to wipe em down that won't impact the finish so we can inspect? Second question, how do we safely remove it? Tks -K
  13. kidturbo

    Twins with Twins, Anyone?

    Maybe we'll go test this pig in Florida Mark. Either that, or pack your parka... Still fighting the flu here, but managed to yank a head off first engine yesterday. Above I said it should take a good mechanic with power tools less than an hour to pull both heads. Jacked up on sudafed, with...
  14. kidturbo

    LMM: Ever Seen a New Engine Do This?

    Am I the only one who finds the "comments" from oil annalist a bit concerning? First sentence states: Silicon (Si) is high. SiC is the primary make up of TBC.. https://en.wikipedia.org/wiki/Silicon_carbide Chemical breakdown of modern ceramic piston coatings found in a PDF listed here...
  15. kidturbo

    IAT relocation mod on LLY

    Your input values look correct, and would just raise the iat 32 to 40 in the tune. I'm not near pc so can't look at the high idle related tables, but maybe someone more knowledgeable will chime in on this. Sent from my SAMSUNG-SM-G890A using Tapatalk
  16. kidturbo

    Any of you guys sledders?

    I've ridden a dozen times or so over the years, but down here in southeastern Ohio we don't get enough snow anymore to make owning one worth while. Everyone switched to side by sides. When we going skiing I'll usually try and rent a bike for a guided tour of the slopes at night or whatever. If...
  17. kidturbo

    Twins with Twins, Anyone?

    I wouldn't be very worried if yours isn't evaporating coolant. My issue could be totally unrelated, no idea yet.. We'd been data logging about everything possible, but the seawater and coolant reservoir pressure gauges were just old analog dials I pulled out of the boat. So those were only...
  18. kidturbo

    Twins with Twins, Anyone?

    ARP230-4201 studs. C gaskets, don't recall what they are torqued at, was two years ago... Dustin said GM sent out a SB on the LML gasket issue shortly after we purchased those. Know he's changed a couple dozen at work. I seriously thought they would leak at lower power levels. While neither...
  19. kidturbo

    Twins with Twins, Anyone?

    It never blew, just burped a 16psi cap once. We ran another hour at less load and no problem. But once I watched all the videos, you could see that it was slowly building pressure in the cooling system on all the plus 750hp runs according to our gauge. Since the Evans coolant doesn't boil till...
  20. kidturbo

    Twins with Twins, Anyone?

    Week 2 & 3. But maxed out my storage.. How about a little extra room admins?