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Thread: The Holset he341 3.0L

  1. #1021
    Supporting Member Turbo Mopar Contributor Ondonti's Avatar
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    Re: The Holset he341 3.0L

    Still not set on picture uploading, so taking a break from that. Really good pics of the clogged fuel return drainback valve. Some huge pieces somehow made it past with 150psi air pressure but others could not.

    Finally got my real Viton material. I destroyed 1 piece not having the spring installed testing out the return line issue I had. Ripped off from the center when the piston actuated too far. Second piece is working great but I have thread impregnated failed rubber gasket behind to prevent catastrophic failure (won't split in half suddenly).
    Has been working well a few weeks. The rubber stuff would fail in days on E10 fuel!!!!

    I had to rewire my Innovate MTX-L to battery. Too much noise to interpret datalogs. Full AFR point up and down makes tuning impossible. Car has no boost controller on it as I was waiting for accurate AFR readings. I have another knock sensing toy purchased long ago but not sure if I will tackle that or start tuning her back towards 15psi. Boring to drive as the wastegate opens at 3psi then creeps up to 5-6 at redline in higher gears.
    Brent
    GREAT DEPRESSION RACING
    1992 Duster 3.0 The Junkyard- Now - Megasquirt II/Extra. OEM 10:1 3.0 + funny business
    - Old - 11.5@125 22psi $90 Stock 3.0 Junk Motor - 516whp 519wtq 20psi 91 oct built 3.0 stock n/a computer
    1994 Spirit 3.0 - 12.3@113 15 psi - Daily Holset He341 280whp 304ft/lb @10psi
    1994 Spirit 3.0 a670 - Wife's - Disassembled
    1990 Spirit 3.0 E.S. 41TE
    1993 Spirit 3.0 E.S. 41TE
    1994 Duster 3.0 A543
    1990 Lebaron Coupe 2.2 TII non IC, T1 31TH
    1981 Starlet KP61 Potential driver, 1981 Starlet KP61 Parts, 1983 Starlet KP61 Drag
    1998 Dodge 12v Cummins 47re 4x4 4dr longbed. No fuel plate. Mack plug, AFC & Spring mods. Boost elbow.

  2. #1022
    Moderator Turbo Mopar Staff Vigo's Avatar
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    Re: The Holset he341 3.0L

    The rubber stuff would fail in days on E10 fuel!!!
    Damn! Glad the return issue and signal noise are figured out. Also you are spoiled as quite a few turbo 3.0s have trapped ~100mph on 5-6 psi.

    Dont push the red button.You hear me?

  3. #1023
    Supporting Member Turbo Mopar Contributor Ondonti's Avatar
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    Re: The Holset he341 3.0L

    Quote Originally Posted by Vigo View Post
    Damn! Glad the return issue and signal noise are figured out. Also you are spoiled as quite a few turbo 3.0s have trapped ~100mph on 5-6 psi.
    I got an old HKS from Rob Mercer and no fun sounds at 3-6psi. I can feel the turbo come online very early then no party. Feels the same as ever the first few psi which is probably why it feels so slow once the gate opens. Car is significantly noisier in mild driving because the wastegate is always opening. 3psi is very easy to hit when I am used to driving in a "lug" (wrong) gear. Screamer pipe at 3psi low RPM sounds like blending ice to a rhythm. You can hear individual exhaust valves opening.
    Brent
    GREAT DEPRESSION RACING
    1992 Duster 3.0 The Junkyard- Now - Megasquirt II/Extra. OEM 10:1 3.0 + funny business
    - Old - 11.5@125 22psi $90 Stock 3.0 Junk Motor - 516whp 519wtq 20psi 91 oct built 3.0 stock n/a computer
    1994 Spirit 3.0 - 12.3@113 15 psi - Daily Holset He341 280whp 304ft/lb @10psi
    1994 Spirit 3.0 a670 - Wife's - Disassembled
    1990 Spirit 3.0 E.S. 41TE
    1993 Spirit 3.0 E.S. 41TE
    1994 Duster 3.0 A543
    1990 Lebaron Coupe 2.2 TII non IC, T1 31TH
    1981 Starlet KP61 Potential driver, 1981 Starlet KP61 Parts, 1983 Starlet KP61 Drag
    1998 Dodge 12v Cummins 47re 4x4 4dr longbed. No fuel plate. Mack plug, AFC & Spring mods. Boost elbow.

  4. #1024
    Supporting Member Turbo Mopar Contributor Ondonti's Avatar
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    Re: The Holset he341 3.0L

    Differential bearings are smoked in both our daily drivers. Will possibly put my spare OBX LSD (never used) in. Car seemed to work pretty good with the shimmed OEM spider gears.
    Brent
    GREAT DEPRESSION RACING
    1992 Duster 3.0 The Junkyard- Now - Megasquirt II/Extra. OEM 10:1 3.0 + funny business
    - Old - 11.5@125 22psi $90 Stock 3.0 Junk Motor - 516whp 519wtq 20psi 91 oct built 3.0 stock n/a computer
    1994 Spirit 3.0 - 12.3@113 15 psi - Daily Holset He341 280whp 304ft/lb @10psi
    1994 Spirit 3.0 a670 - Wife's - Disassembled
    1990 Spirit 3.0 E.S. 41TE
    1993 Spirit 3.0 E.S. 41TE
    1994 Duster 3.0 A543
    1990 Lebaron Coupe 2.2 TII non IC, T1 31TH
    1981 Starlet KP61 Potential driver, 1981 Starlet KP61 Parts, 1983 Starlet KP61 Drag
    1998 Dodge 12v Cummins 47re 4x4 4dr longbed. No fuel plate. Mack plug, AFC & Spring mods. Boost elbow.

  5. #1025
    Supporting Member Turbo Mopar Contributor Ondonti's Avatar
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    Re: The Holset he341 3.0L

    Brent
    GREAT DEPRESSION RACING
    1992 Duster 3.0 The Junkyard- Now - Megasquirt II/Extra. OEM 10:1 3.0 + funny business
    - Old - 11.5@125 22psi $90 Stock 3.0 Junk Motor - 516whp 519wtq 20psi 91 oct built 3.0 stock n/a computer
    1994 Spirit 3.0 - 12.3@113 15 psi - Daily Holset He341 280whp 304ft/lb @10psi
    1994 Spirit 3.0 a670 - Wife's - Disassembled
    1990 Spirit 3.0 E.S. 41TE
    1993 Spirit 3.0 E.S. 41TE
    1994 Duster 3.0 A543
    1990 Lebaron Coupe 2.2 TII non IC, T1 31TH
    1981 Starlet KP61 Potential driver, 1981 Starlet KP61 Parts, 1983 Starlet KP61 Drag
    1998 Dodge 12v Cummins 47re 4x4 4dr longbed. No fuel plate. Mack plug, AFC & Spring mods. Boost elbow.

  6. #1026
    Supporting Member Turbo Mopar Contributor Ondonti's Avatar
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    Re: The Holset he341 3.0L

    Lost a piston that was potentially already mechanically damaged. Was doing rolling burnouts on freeway. Block was wrecked by connecting rod and pin because piston shattered. I had just finished a knock sensor upgrade and replaced garbage Innovate wideband with another Zeitronix setup.....and had not tuned it yet

    No more factory pistons. I don't have time to tinker like I want to on 100 projects.
    Brent
    GREAT DEPRESSION RACING
    1992 Duster 3.0 The Junkyard- Now - Megasquirt II/Extra. OEM 10:1 3.0 + funny business
    - Old - 11.5@125 22psi $90 Stock 3.0 Junk Motor - 516whp 519wtq 20psi 91 oct built 3.0 stock n/a computer
    1994 Spirit 3.0 - 12.3@113 15 psi - Daily Holset He341 280whp 304ft/lb @10psi
    1994 Spirit 3.0 a670 - Wife's - Disassembled
    1990 Spirit 3.0 E.S. 41TE
    1993 Spirit 3.0 E.S. 41TE
    1994 Duster 3.0 A543
    1990 Lebaron Coupe 2.2 TII non IC, T1 31TH
    1981 Starlet KP61 Potential driver, 1981 Starlet KP61 Parts, 1983 Starlet KP61 Drag
    1998 Dodge 12v Cummins 47re 4x4 4dr longbed. No fuel plate. Mack plug, AFC & Spring mods. Boost elbow.

  7. #1027
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
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    Re: The Holset he341 3.0L

    oops.. bummer.

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

  8. #1028
    Supporting Member Turbo Mopar Contributor Ondonti's Avatar
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    Re: The Holset he341 3.0L

    Hey, looks like Photobucket changed so I can see my old pictures??????? I have been getting down to wanting to host my own stuff and a little website of info. Can't build a knowledge center here still.


    I pulled the oil pan because I was going to steal it, and after investigation I might keep it there.
    While the starter was capable of forcing rotation, weak attempts to turn the motor by hand locked it up near TDC both directions. Bottom of pistons were all intact, though at least 1 sounded very leaky all the time while moving.

    Pulled plug and #6 plug electrode was smashed. Put Android phone Endoscope down the hole and found only intake valve ringland failure. Block saved! Debris must be stuck to the top of the piston farther back.
    By reading the one most obvious plug, it had way too much timing or was at least burning hot. Needed retune at the time it blew after replacing the junk Innovate wideband, not more horseplay.

    I have forged pistons on order and already have other upgrades on the shelf, but I might still slip in another piston from my old 11 second junk motor (I think it has a slug or 2 left) and build the 11 second block separately. I have a lot of stuff not coming together this year around the house, shop (200 amp panel + 180,000 Lumen of lights on separate meter installed when pool project started), pool (ongoing 125 amp sub-panel 2 year rewire), and 11 vehicles (only 1 safely drivable but needs A/C), plus a 3rd baby last Friday so any progress is good.
    Last edited by Ondonti; 05-26-2019 at 05:14 PM.
    Brent
    GREAT DEPRESSION RACING
    1992 Duster 3.0 The Junkyard- Now - Megasquirt II/Extra. OEM 10:1 3.0 + funny business
    - Old - 11.5@125 22psi $90 Stock 3.0 Junk Motor - 516whp 519wtq 20psi 91 oct built 3.0 stock n/a computer
    1994 Spirit 3.0 - 12.3@113 15 psi - Daily Holset He341 280whp 304ft/lb @10psi
    1994 Spirit 3.0 a670 - Wife's - Disassembled
    1990 Spirit 3.0 E.S. 41TE
    1993 Spirit 3.0 E.S. 41TE
    1994 Duster 3.0 A543
    1990 Lebaron Coupe 2.2 TII non IC, T1 31TH
    1981 Starlet KP61 Potential driver, 1981 Starlet KP61 Parts, 1983 Starlet KP61 Drag
    1998 Dodge 12v Cummins 47re 4x4 4dr longbed. No fuel plate. Mack plug, AFC & Spring mods. Boost elbow.

  9. #1029
    Supporting Member Turbo Mopar Contributor GLHS60's Avatar
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    Sherwood Park Alberta, Canada
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    Re: The Holset he341 3.0L

    Congrats on 3rd baby!!!

    Thanks
    Randy


    Randy Hicks
    86 GLHS60
    86 GLHS 373 : SOLD, but never forgotten
    89 Turbo Minivan
    83 Turbo Rampage : SOLD
    Edmonton,Alberta,Canada

  10. #1030
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
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    Re: The Holset he341 3.0L

    Back into baby jail! Lol. Enjoy.

    My 3rd kid is 19mo now. The cell door is starting to open :-)

    Brian

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

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