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Manley platinum series pistons

Posted by YungTlon, Jan 23, 2021

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  1. YungTlon

    YungTlon Proven Member

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    Hi all. So I’ve been told time and time again that I should have went with a different piston and my manley platinum series pistons are too weak for my goals of 700ish. They’re 9:0.1 with the .210 wrist pin. Just posting this to see if anyone has made good power on these pistons? I called manley and they said they’re good to 1,000 crank hp. I’m sure hp isn’t relevant as cylinder pressure and things like that are. Wanted to go with the wiseco 1400hd but I kind of already have my pistons . Thoughts ? Thanks!
     

    Street Build 534  2

    1991 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  2. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

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    I run Manleys in my motors. I use the 7 bolt pistons for the 22mm wrist pin though.
    I am not making 700hp but easily at 500+ and 40 lbs of boost. No issues to speak of. I have 10:1's in one motor and 9:1's in another both on H beams. The 10s are harder to run with any timing on just gasoline so they both run E85.
     

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  3. 1cleangsx

    1cleangsx Proven Member

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    Cheyenne, Wyoming
    I have the exact same pistons that I’ll be using in my build, I’m not afraid to run them. If you look up I believe @ATEAV8 I think was his name, he made 700 plus whp on standard wisecos witch I think are like .150 wrist pins LOL. You don’t here about wrist pins or piston failures very often, I’d be more concerned about the rod bolts and high rpms which typically come with a 700whp setup. I think you’ll be fine. Odds are something else will fail before the piston does, besides even with thicker pins you can still grenade a piston if an injector fails or your fuel pump loses voltage or something, I say run’em:hellyeah:
     

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  4. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

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    I'm not sure what his exact setup was but he did have some very impressive numbers!
     

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  5. DSMPT

    DSMPT DSM Wiseman

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    I am curious. Can you tell us you been told what point on Manley piston is weak? I don't know which Manley kit you have, but a Manley kit with the upgrade .21" wrist pin should be similar to a Wiseco HD kit. So I think if your Manley kit wouldn't work for your goal, the Wiseco kit wouldn't probably work well neither.
    I don't use Manley pistons myself now and this is not that simple since many factors would affect, but I have sold numerous Manley piston kits with/without .210" wrist pins over 10 years and I have never heard one complain.
     

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  6. 1cleangsx

    1cleangsx Proven Member

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    It’s too bad they don’t make the “turbo tuff” pistons for 6 bolts :idontknow:
     

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  7. DSMPT

    DSMPT DSM Wiseman

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    Right, only 22mm wrist pin. But you can run those pistons on a 6 bolt engine by using 6 bolt 22mm small end rods.
     

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  8. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

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    These are the combos I run in my 6 bolts.
    One runs the 7 bolt piston and is 10:1, the other is the 9:1 and runs a 6 bolt piston.
    Just for reference and part #'s.
    Screenshot_20210123-213719_Gallery.jpg Screenshot_20210123-214638_Chrome.jpg
     

    Street Build 5K  31

    1992 Eagle Talon TSi AWD
    14.74 @ 117.04 · 1G DSM

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    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    1K  18

    1967 Chevrolet Camaro RS
    rwd · automatic · Misc Vehicles

    Street Build 1K  7

    1998 Eagle Talon TSi
    fwd · manual · 2G DSM

    Street Build 7K  16  26

    1990 Eagle Talon TSi AWD
    13.620 @ 108.460 · 1G DSM
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  9. bastarddsm

    bastarddsm Proven Member

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    Mendota, Illinois
    I've not run either yet, but based on the wiseco's I have run, the data on the 1400hd's I've collected, and what I think of the Manleys, I'd run the manleys.
     

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  10. Streetsweeper21

    Streetsweeper21 Proven Member

    138
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    Joined Jan 11, 2006
    Atlana, Georgia
    I run Manley platinum series.10:5:1 2.4 LR in my Evo and it made 614hp 619tq on 31 psi E85.
     
    Streetsweeper21

    492  0

    1993 Eagle Talon TSi AWD
    10.870 @ 130.23 · 1G DSM
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