torque specs for 2jzgte HELP!!!

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Thread: torque specs for 2jzgte HELP!!!

  1. #1
    evil will always triumph supraman741's Avatar
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    torque specs for 2jzgte HELP!!!

    ok, so i did a search and didnt find what i was looking for....

    i am currently building a 2jz and am putting ARP head studs, main studs, rod bolts and flywheel bolts....

    what are the torque specs for the main studs, rod bolts, and flywheel???

    i am going to torque the head to 90 lbs

    current mods are/will be

    full cryotreatment of complete engine.
    cleaned and pressure tested block, milled block
    polished crank, might knife edge it
    stock rods
    stock TT pistons with ceramic coated domes
    stock TT piston rings
    clevite 77 bearing kit
    crower 1mm oversized valves
    crower springs and titanium retainers
    head is getting fully portmatched and polished
    5 angle valve job
    JUN 264/272 cams
    JUN lightweight flywheel
    HPF feramic clutch with ACT pressure plate
    31X12X4 custom intercooler
    T-62 t3/t4 turbo for now
    4:10 gears soon to be 4:30s
    NX 50 shot wet kit( got from a friend for $100 who could pass that up??)
    all new stock gaskets
    havent decided on a headgasket yet, or a timing belt

    anyways any help would be greatly apreciated

    thanx
    chris
    If You Aint Blowin You Aint Goin!!!
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  3. #2
    OCC SupraTuRD's Avatar
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    90 ft.lbs.? You'll destroy/over-stretch the ARP headstuds... call ARP and ask them. I torqued mine to 65 ft.lbs. with their lube.

    sushi

  4. #3
    2005 LP640
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    I've torqued my headbolts to 95 foot pounds, and they do just fine........but then again I have a MK3 :P
    I did it for the lulz.

  5. #4
    Boostin... WEST's Avatar
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    Off topic, but I would change out the stock rods.

  6. #5
    evil will always triumph supraman741's Avatar
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    Originally posted by 87turbosupra
    I've torqued my headbolts to 95 foot pounds, and they do just fine........but then again I have a MK3 :P
    so do i

    sushi...... when i did my search i had come up with people torqueing the head to 75-115 so i am gonna hit it around the middle with 90.....

    as for the rods..... i have had them cryo treated.... hopfully this should be fine for what im trying to acheive(sp?)

    i think the stock 2jz bottom end will hold over 800hp, or so i have heard...... im only aiming for around 600-700 later on but since i bought this 2jz used i figured i would fully rebuild it, then after i got into it i decided to have it all cryotreated..... the stock rods should be able to handle what i wanna throw at it...... and i know the stock pistons will handle more than that....


    basically my funds have run short since i just bought a house, so some of the things i wanted are now on the back burner but everything in that list i already have/ its on order


    chris

  7. #6
    evil will always triumph supraman741's Avatar
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    ANY1????

  8. #7
    !black MadMaxx's Avatar
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    Flywheel - 36lbs + 90deg
    Head studs - 25lbs + 90deg + 90deg
    Rods bolts - 21lbs +90deg

    Those are factory ratings...

  9. #8
    evil will always triumph supraman741's Avatar
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    ^^ what about the main studs??

    thankyou for those specs....

  10. #9
    !black MadMaxx's Avatar
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    Sorry, missed that one

    main studs are 35lbs + 90deg

  11. #10
    OCC SupraTuRD's Avatar
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    Madmax's specs are for stock hardware, not aftermarket ARP. I hope you take my advice and call ARP to get the proper spec for that particular fastener.

    sushi

  12. #11
    SupraForums Member Taimur's Avatar
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    This may help you a bit with the arp bolts
    http://www.supraforums.com/forum/sho...hreadid=261770

  13. #12
    evil will always triumph supraman741's Avatar
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    ^^ cool thanx

  14. #13
    OCC SupraTuRD's Avatar
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    Keep in mind that over-torqueing the head fasterners can distort the head enough to cause huge leakdown numbers...

    good luck,

    sushi

  15. #14
    evil will always triumph supraman741's Avatar
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    so do u think i should go 70-75? back when i had a 7m in my supra( yes guys im a mk iii owner, but this is a 2jz question so i figured u guys would be best) i torqued the head to 80, but i figured since a few guys on here were running over 90 and i do wanna put a good amount of boost into the engine that i should torque a lil higher.....

    chris

  16. #15
    Stock Twins King Stu Hagen's Avatar
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    I did a WHOLE lot of research on this when I did my new head. I even called Jeff Watson. I think the first thing you need to determine is if your going to use Moly Lube of regular oil. That makes a BIG difference one the torque #'s you will use. Using Moly LOWERS the torque requirements. I also did talk to John Reed as well. My best answer came from Ramos who has built many supras and has a proven record. I ended up at using 68 # Moly Lube. You cant use the OEM FSM torque settings since there designed totally different. I think using 65 as a min and 80 as a max WITH moly lube is where you need to be. NOW, if you DO NOT use Moly and use motor oil, then you would need to add 10#'s to these numbers.

    Every ones ideas are based on intended use. TQFQ use these high TQ settings because of problems they had with coolant leaks at very high PSI #'s They also may have 1) Different head gasket 2) Built head, or 3) brand new block. They also DID NOT state whether they used MOLY or Motor OIL, so keep that in mind.

    So this is my .02 worth
    Last edited by Stu Hagen; 03-12-2005 at 01:35 AM.

  17. #16
    evil will always triumph supraman741's Avatar
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    i will be using the lube that the ARP's come with... so moly lube....

    the engine is going to be built/rebuilt.... im dealing with almost all fresh parts.... and the used parts have been cleaned, pressure tested and all that good stuff, so all in all its a used 1jz head that has been cleaned, decked and worked with all new parts, a used 2jz block that has been cleaned, pressure tested, milled, and hoaned that is using new stock TT pistons that have been ceramic coated, stock rods, stock crank that has been polished and i might knife edge it, all new clevite 77 bearings.... and all the ARPs, also..... everything but the ARPs got cryotreated

    how would i get a hold of the Ramos guy?? so i can talk to him

    thankyou for all of your imput!!!!!! hopfully soon i will have a badasssss running 2jz

    chris

  18. #17
    evil will always triumph supraman741's Avatar
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    alright, so i was looking at the papers the arp headstuds came with....


    it says to torque to 81 ft lbs with the arp moly lube or 105 ft lbs with 30wt motor oil


    all the other arp bolts n studs are still in their packages waiting till i get into my new house so i can start the buildup

    anyways thankyou for all your help..... and ill post up once i get the ball rolling on this 1.5jz

    chris

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