643 HP at the wheels, then......

Forced Induction Mopar

  1. 70wayfarer

    70wayfarer FABO Gold Member FABO Gold Member

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    things were going so well on the dyno when the water meth decided to fault. we were about to do a graphed pull when this happened. shut here down right away and thought things were all good. on restart smoke started spewing from the breathers and, well the rest is history. we were at 643 hp at the wheels 17 psi boost.
    stripped down motor yesterday. #8 piston f#@ked, head gasket exploded into valley. detonation the cause. shit happens ah.
    pistons are forged Mahle.
     

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  2. 70wayfarer

    70wayfarer FABO Gold Member FABO Gold Member

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    have no idea why the water meth faulted. have tested it several times this morning with air reg and it would not fault. it's a AEM 30-3000 kit and is new out of the box. ran 50/50 mix. should have shelled out the extra and got the fail safe option with the kit.
     
  3. doug 371

    doug 371 Well-Known Member

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    ouch
     
  4. 70wayfarer

    70wayfarer FABO Gold Member FABO Gold Member

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    yip....me wallet is hurting crying.
     
  5. toolmanmike

    toolmanmike FABO Staff Staff Member FABO Gold Member

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    She ate her pigs! Damn.
     
  6. MrMoparMan

    MrMoparMan Well-Known Member

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    Nice numbers, sorry to hear about the meth.
     
  7. 604B1duster

    604B1duster Well-Known Member

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    US meth users end up being burnt worse than that, sorry about the motor
     
  8. rumblefish360

    rumblefish360 So close, yet so far away FABO Gold Member

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    With a dyno pull like that, I'd be super stoked to rebuild and try again.
    Best of luck!
     
  9. Mad Dart

    Mad Dart Nothing to see Here!

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    I feel for you!
     
  10. 70wayfarer

    70wayfarer FABO Gold Member FABO Gold Member

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    over it now....gotta think about rebuild.
    last time round I was misinformed about block fill and machining was already done.
    360 blocks thin on the ground round here.

    would it be practical to do a half block fill with my existing block and bore to .060". already .040". it's a 77 casting. performer rpm heads this time round. existing heads are ported smoggers.

    the rod bearings showed signs of det on a few rods.
     
  11. Bakerlite

    Bakerlite Well-Known Member

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    Kiwi's on Meth?? Now there's trouble.. You need to buy some good meth from downunder bro...
     
  12. GEO

    GEO Sarcasm Inc.

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    Man that's hard to stomach, good luck on the rebuild
     
  13. 70wayfarer

    70wayfarer FABO Gold Member FABO Gold Member

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    only the best down here man.
     
  14. barty005

    barty005 Well-Known Member

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    Where in nz are yah ?
    No promises but will be heading home in 3 / 4 months might be able to chuck a block in the container if you wanted and can locate one round Connecticut area would just depend on what room is left shoukd know in next couple a months if your interested.
     
  15. MidTexCuda

    MidTexCuda Ancient Member

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    Are you going to stay with the meth injection? I am billding a street centrifugal now and weighing my options a meth, a2a, or w2a, or combo.
     
  16. 70wayfarer

    70wayfarer FABO Gold Member FABO Gold Member

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    will stay with the water meth, but will upgrade the AEM system with their Failsafe system to prevent this from happening again.


    my build...... http://www.forabodiesonly.com/mopar/showthread.php?t=289648
     
  17. MiradaMegaCab

    MiradaMegaCab Well-Known Member

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    Sorry to see this.
    Are those pistons the 2618 alloy for boosted applications?
    Or are they the 4032 alloy for NA.
    Looking at the pics, it doesn't seem like much surface area retains the piston crown (the part that broke off) due to a combination of the dish, valve relief and ring land. Also looks like sharp edges on the transitions to the dish and valve reliefs might have made a hot spot that promotes detonation.
    While the lack of meth induced this, whats everyones opinions on deburring the sharp edges and coating the piston tops? Do you think the piston would have survived as the weakest link should be the head gasket.
    Best of luck to 70wayfarer for a speedy recovery.
     
  18. SRT_DSTR15

    SRT_DSTR15 Well-Known Member

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    What is the entire setup you are running?
     
  19. Matts440

    Matts440 Well-Known Member

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    I feel for you, same thing happened to me on my neon srt4 with a 60 trim turbo, tuned it to the meth but if things go wrong (or you forget to check the fluid level of the meth I did this) motor goes to lean and boom. Are you tuning it to run with the meth on at a certain boost level or on a micro switch, my next two car will be slightly tuned to meth injection but should anything happen should be okay if something goes wrong with the injection. Nice numbers, hope you get it all fixed and see what that motor really can do.
     
  20. 70wayfarer

    70wayfarer FABO Gold Member FABO Gold Member

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    I used what came with the stroker kit. all the builds I looked at here to get ideas, nothing was said about using a blower piston.
    I think the piston would have survived if the meth worked as it should have.
     
  21. Abodybomber

    Abodybomber Breaking street machines , since 1983.....:) Legendary Member

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    Nice numbers,and ouch! Best of luck, it sucks in the pocketbook at times.
     
  22. 70wayfarer

    70wayfarer FABO Gold Member FABO Gold Member

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    http://www.forabodiesonly.com/mopar/showthread.php?t=289648


    i'm running a MSD6530 so was thinking of losing the water/meth and setting up a tune for say 6psi for the street on 95-98 pump gas and a second tune for the strip and run C16 race gas.
    talking to my engine guy today and will look into a custom blower style piston. suggestions on a good piston manufacturer for these are welcome.
     
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    • SRT_DSTR15

      SRT_DSTR15 Well-Known Member

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      Very nice!
       
    • Abodybomber

      Abodybomber Breaking street machines , since 1983.....:) Legendary Member

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      CP Pistons, And Ross look good to my engine guy.
       
    • 70wayfarer

      70wayfarer FABO Gold Member FABO Gold Member

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      if I go with a custom piston this time round it can have an extra couple of thou added. this means I can block fill the block now and still be .040" ish oversize. better than .060" that I had considered. will look at JE, CP, Ross inverted dome.

      thought bout bolting my old cast crank in when I fill the block and torque it down along with the old iron heads.
       
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