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Thread: The Holset he341 3.0L

  1. #1021
    turbo addict Turbo Mopar Contributor
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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 3.0T The Junkyard - MS II, OEM 10:1 -[I] Old - 11.5@125 22psi $90 [U]Stock[/U] 3.0 Junk Motor - 1 bar MAP [/I] 1994 Spirit 3.0T - 11.5@120 20 psi - Daily :eyebrows: Holset He351 -FT600 - 393whp 457ft/lb @18psi 1994 Spirit 3.0T a670 - He341, stock fuel, BEGI. Wife's into kid's project. 1990 Lebaron Coupe 2.2 TI/II non IC, a413 1990 Spirit 3.0 E.S. 41TE -- 1993 Spirit 3.0 E.S. 41TE -- 1994 Duster 3.0 A543 1981 Starlet KP61 Potential driver -- 1981 Starlet KP61 Parts -- 1983 Starlet KP61 Drag 2005 Durango Hemi Limited -- 1998 Dodge 12v 47re. AFC mods, No plate, Mack plug, Boost elbow -- 2011 Dodge 6.7 G56

  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
    turbo addict Turbo Mopar Contributor
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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 3.0T The Junkyard - MS II, OEM 10:1 -[I] Old - 11.5@125 22psi $90 [U]Stock[/U] 3.0 Junk Motor - 1 bar MAP [/I] 1994 Spirit 3.0T - 11.5@120 20 psi - Daily :eyebrows: Holset He351 -FT600 - 393whp 457ft/lb @18psi 1994 Spirit 3.0T a670 - He341, stock fuel, BEGI. Wife's into kid's project. 1990 Lebaron Coupe 2.2 TI/II non IC, a413 1990 Spirit 3.0 E.S. 41TE -- 1993 Spirit 3.0 E.S. 41TE -- 1994 Duster 3.0 A543 1981 Starlet KP61 Potential driver -- 1981 Starlet KP61 Parts -- 1983 Starlet KP61 Drag 2005 Durango Hemi Limited -- 1998 Dodge 12v 47re. AFC mods, No plate, Mack plug, Boost elbow -- 2011 Dodge 6.7 G56

  4. #1024
    turbo addict Turbo Mopar Contributor
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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 3.0T The Junkyard - MS II, OEM 10:1 -[I] Old - 11.5@125 22psi $90 [U]Stock[/U] 3.0 Junk Motor - 1 bar MAP [/I] 1994 Spirit 3.0T - 11.5@120 20 psi - Daily :eyebrows: Holset He351 -FT600 - 393whp 457ft/lb @18psi 1994 Spirit 3.0T a670 - He341, stock fuel, BEGI. Wife's into kid's project. 1990 Lebaron Coupe 2.2 TI/II non IC, a413 1990 Spirit 3.0 E.S. 41TE -- 1993 Spirit 3.0 E.S. 41TE -- 1994 Duster 3.0 A543 1981 Starlet KP61 Potential driver -- 1981 Starlet KP61 Parts -- 1983 Starlet KP61 Drag 2005 Durango Hemi Limited -- 1998 Dodge 12v 47re. AFC mods, No plate, Mack plug, Boost elbow -- 2011 Dodge 6.7 G56

  5. #1025
    turbo addict Turbo Mopar Contributor
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    Re: The Holset he341 3.0L

    Brent GREAT DEPRESSION RACING 1992 Duster 3.0T The Junkyard - MS II, OEM 10:1 -[I] Old - 11.5@125 22psi $90 [U]Stock[/U] 3.0 Junk Motor - 1 bar MAP [/I] 1994 Spirit 3.0T - 11.5@120 20 psi - Daily :eyebrows: Holset He351 -FT600 - 393whp 457ft/lb @18psi 1994 Spirit 3.0T a670 - He341, stock fuel, BEGI. Wife's into kid's project. 1990 Lebaron Coupe 2.2 TI/II non IC, a413 1990 Spirit 3.0 E.S. 41TE -- 1993 Spirit 3.0 E.S. 41TE -- 1994 Duster 3.0 A543 1981 Starlet KP61 Potential driver -- 1981 Starlet KP61 Parts -- 1983 Starlet KP61 Drag 2005 Durango Hemi Limited -- 1998 Dodge 12v 47re. AFC mods, No plate, Mack plug, Boost elbow -- 2011 Dodge 6.7 G56

  6. #1026
    turbo addict Turbo Mopar Contributor
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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 3.0T The Junkyard - MS II, OEM 10:1 -[I] Old - 11.5@125 22psi $90 [U]Stock[/U] 3.0 Junk Motor - 1 bar MAP [/I] 1994 Spirit 3.0T - 11.5@120 20 psi - Daily :eyebrows: Holset He351 -FT600 - 393whp 457ft/lb @18psi 1994 Spirit 3.0T a670 - He341, stock fuel, BEGI. Wife's into kid's project. 1990 Lebaron Coupe 2.2 TI/II non IC, a413 1990 Spirit 3.0 E.S. 41TE -- 1993 Spirit 3.0 E.S. 41TE -- 1994 Duster 3.0 A543 1981 Starlet KP61 Potential driver -- 1981 Starlet KP61 Parts -- 1983 Starlet KP61 Drag 2005 Durango Hemi Limited -- 1998 Dodge 12v 47re. AFC mods, No plate, Mack plug, Boost elbow -- 2011 Dodge 6.7 G56

  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
    turbo addict Turbo Mopar Contributor
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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 3.0T The Junkyard - MS II, OEM 10:1 -[I] Old - 11.5@125 22psi $90 [U]Stock[/U] 3.0 Junk Motor - 1 bar MAP [/I] 1994 Spirit 3.0T - 11.5@120 20 psi - Daily :eyebrows: Holset He351 -FT600 - 393whp 457ft/lb @18psi 1994 Spirit 3.0T a670 - He341, stock fuel, BEGI. Wife's into kid's project. 1990 Lebaron Coupe 2.2 TI/II non IC, a413 1990 Spirit 3.0 E.S. 41TE -- 1993 Spirit 3.0 E.S. 41TE -- 1994 Duster 3.0 A543 1981 Starlet KP61 Potential driver -- 1981 Starlet KP61 Parts -- 1983 Starlet KP61 Drag 2005 Durango Hemi Limited -- 1998 Dodge 12v 47re. AFC mods, No plate, Mack plug, Boost elbow -- 2011 Dodge 6.7 G56

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

    Congrats on 3rd baby!!!

    Thanks
    Randy


    There is no logical reason to call an Engine a motor.

    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.

  11. #1031
    turbo addict Turbo Mopar Contributor
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    Re: The Holset he341 3.0L

    Bonding leave for Baby #4,
    Made 3 passes, first since 2017.
    After our small FWD Mopar meet with 100+ temps, we went to Renegade Raceway DTP Racewars, which is basically a family party night for the whole area around the track. On Reservation. Was so hot I didn't want to fix all the stuff that was wrong, but I talked Kyle into racing his turbo 3.0 so I had to race mine. I was delirious, calorie starved, dehydrated. Had layed under the car for over an hour in the sun at a members house trying to repair methanol bottle that the level sensor fell out of.....

    Tune was only mildly happy at 12psi (about 9 pounds of dome pressure). I didn't want to race with the car slower than it was in the past so I turned it up with no real testing.
    Set it to 21.5 pounds (tapered up to a peak at high rpms) on the dome which makes about 20psi boost (backpressure changes). Did one test pull burnout at the meet. Changed fueling with some guesses in the low 20psi boost areas. My 2nd test "burnout" the methanol sensor had fallen out with all the fluid and the data was junk. After repair it was only off by 1-5% when I remembered to record my 2nd pass.

    12.03@119 Bog from soft lauch. Limited boost in 1st and 2nd.
    12.01@120 launch a bit harder, shifted a bit slower. Remembered to datalog. Bogged to 2500 rpms and wouldn't build boost.
    11.57@120 Up Arrow 2 step and low gear boost. 1.694 60' and it could have left harder.

    Could have up arrowed it much harder but the head gasket has been toast since last year BEFORE going on the dyno. It was spitting out water on the dyno. Compressed and leaked into the radiator. I loosened All the head bolts 100% and retorqued. Leak at 120psi of air stopped, somehow. Still wasn't good in boost but I didn't plan on fixing it because I didn't want to fix it until after the tune was semi figured out. Seemed like potential double/triple work.
    I don't actually know how much a happy headgasket can handle, which is annoying. They definitely require retorque when using the FelPro headgaskets. Probably BEFORE 25psi boost spikes, which never happened on normal boost control, but this turbo is too high backpressure for my boost control on basic settings (advanced PID isn't recommended). Fueltech prefers seeing perfected drag car setups which have optimized parts for drag racing.
    Brent GREAT DEPRESSION RACING 1992 Duster 3.0T The Junkyard - MS II, OEM 10:1 -[I] Old - 11.5@125 22psi $90 [U]Stock[/U] 3.0 Junk Motor - 1 bar MAP [/I] 1994 Spirit 3.0T - 11.5@120 20 psi - Daily :eyebrows: Holset He351 -FT600 - 393whp 457ft/lb @18psi 1994 Spirit 3.0T a670 - He341, stock fuel, BEGI. Wife's into kid's project. 1990 Lebaron Coupe 2.2 TI/II non IC, a413 1990 Spirit 3.0 E.S. 41TE -- 1993 Spirit 3.0 E.S. 41TE -- 1994 Duster 3.0 A543 1981 Starlet KP61 Potential driver -- 1981 Starlet KP61 Parts -- 1983 Starlet KP61 Drag 2005 Durango Hemi Limited -- 1998 Dodge 12v 47re. AFC mods, No plate, Mack plug, Boost elbow -- 2011 Dodge 6.7 G56

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