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  1. #1
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    1 out of 1 members liked this post. Yes Reputation No

    Thumbs up Oh look - a new S52 motor build!

    What we have here is a new motor. The goal is to build another motor with more power in mind. Better components (though I've had no failures), bigger displacement, VANOS, better cams, etc. The final assembly will be done by yours truly most likely, and machining and such will be done by Dcvee.

    Specs:


    • Custom TRM Wiseco Forged S52 Pistons (smaller bore) 8.5:1 CR
    • K1 Forged Connecting Rods (135mm length)
    • S52 Crankshaft
    • S52 camshafts (at least initially)
    • OBD2/S52 Head Components
    • Supertech Stainless Nitride coated single groove one-piece forged intake valves
    • Supertech Inconel 751 single groove one-piece exhaust valves
    • Supertech Dual Valve springs 84 lb @ 35.70mm installed height
    • Supertech Titanium Retainers
    • Supertech single groove keepers
    • O-ring block
    • ARP main studs
    • ARP 1/2" diameter head studs
    • Besian VANOS reconditioning
    • F1 billet 15 lb steel flywheel (single mass)
    • Every bolt on motor brand new
    • Stewart Warner water pump
    • Blah blah

    To be mated with my PT76GTS turbo and 4" exhaust, Driven Innovations CNC intake, DTA standalone, ID 1000 CC/Min fuel injectors, etc.

    Pic flood

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    Oh yeaaaaah.


  2. #2
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    If the current motor runs well what is the purpose of a new build? Just more power?

  3. #3
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    VANOS, more displacement, more power.

    I think that was in the absolute first line of the post.

    I guess if you don't know my current motor you wouldn't understand the big deal - I currently have a 2.8L motor with no vanos, heavy non-vanos valves, springs, retainers (7mm valve stems). I am moving to 3.0L with vanos and lightweight valves and M3 cams and whole ordeal. O-ringed, etc.


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    Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
    VANOS, more displacement, more power.

    I think that was in the absolute first line of the post.

    I guess if you don't know my current motor you wouldn't understand the big deal - I currently have a 2.8L motor with no vanos, heavy non-vanos valves, springs, retainers (7mm valve stems). I am moving to 3.0L with vanos and lightweight valves and M3 cams and whole ordeal. O-ringed, etc.
    That was absolutely not in the first line fool it was in the second!

  5. #5
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    How much power is the current motor making?
    Some people live long, meaningful lives.

    Other people eat shit and die.

    I'm not racist, I hate everybody equally; especially fat people.


    Click here to enlarge

  6. #6
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    Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
    VANOS, more displacement, more power.

    I think that was in the absolute first line of the post.

    I guess if you don't know my current motor you wouldn't understand the big deal - I currently have a 2.8L motor with no vanos, heavy non-vanos valves, springs, retainers (7mm valve stems). I am moving to 3.0L with vanos and lightweight valves and M3 cams and whole ordeal. O-ringed, etc.
    No, I did not really know your new motor. VANOS itself is a major change so I can understand that.

    This motor is larger displacement but you said smaller bore? So longer stroke though right?

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    Click here to enlarge Originally Posted by Jimefam Click here to enlarge
    That was absolutely not in the first line fool it was in the second!
    Depends on your resolution Click here to enlarge

  8. #8
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    Click here to enlarge Originally Posted by DBFIU Click here to enlarge
    How much power is the current motor making?
    685 on pump and meth. I never really bothered trying to get more out of it. Was on the dyno for maybe 20 mins - didn't really bother tuning it on the dyno for power because it drives so well on the street. This motor has more in it but I figure what the hell.

    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    No, I did not really know your new motor. VANOS itself is a major change so I can understand that.

    This motor is larger displacement but you smaller bore? So longer stroke though right?
    Current motor is 84mm stroke 84.5 mm pistons (0.020" over). New setup is 89.6 mm stroke and 85mm pistons. They are larger pistons than what I have now, but smaller than stock S52 piston (so its debored from a factory S52 piston).


  9. #9
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    Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
    Current motor is 84mm stroke 84.5 mm pistons (0.020" over). New setup is 89.6 mm stroke and 85mm pistons. They are larger pistons than what I have now, but smaller than stock S52 piston (so its debored from a factory S52 piston).
    So is it sleeved for the smaller pistons or what?

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    Nope - we have the luxury of starting out with 84mm blocks. The 2.5 and 2.8L blocks are 84mm bore while the 3.0 and 3.2 blocks are like 85.6 and 86.4 respectively.


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    Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
    Nope - we have the luxury of starting out with 84mm blocks. The 2.5 and 2.8L blocks are 84mm bore while the 3.0 and 3.2 blocks are like 85.6 and 86.4 respectively.
    You didn't mention which block you were using in the OP, I assumed an S52. Makes sense now.

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    680 is a nice amount, what made you decide to go more?
    Some people live long, meaningful lives.

    Other people eat shit and die.

    I'm not racist, I hate everybody equally; especially fat people.


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    Was the 685whp pure dynamic pauer?

    I have subscribed to this thread. Please prepare for many questions and other word combinations.
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    0 out of 1 members liked this post. Yes Reputation No
    Do you plan to attach a HD Go Pro camera inside the cabin of your saloon, documenting your driving skills, street races and everyday going ons?
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    Click here to enlarge Originally Posted by DBFIU Click here to enlarge
    680 is a nice amount, what made you decide to go more?
    Turbo is good for 1150 bhp, so I am not taxing it at all and I wanted to go custom cams and all but the non vanos valvetrain is heavy and such so it just makes sense to go vanos/lighter valves etc, but the problem is its not a matter of simply swapping heads since my block has 1/2" head studs, so I might as well build another and have no down time.

    Click here to enlarge Originally Posted by milkt Click here to enlarge
    Do you plan to attach a HD Go Pro camera inside the cabin of your saloon, documenting your driving skills, street races and everyday going ons?

    Absolutely.


  16. #16
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    Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
    but the problem is its not a matter of simply swapping heads since my block has 1/2" head studs, so I might as well build another and have no down time.
    This is what I was going to ask, why not just add VANOS heads.

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    Because I took every stud hole from 10mm thread to 1/2" thread It would require careful measuring again and remachining a head out for 1/2" head studs.


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    Will you, the OP, be using 1/2 inch (0.5") ARP studs on this engine build?
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    Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
    Because I took every stud hole from 10mm thread to 1/2" thread It would require careful measuring again and remachining a head out for 1/2" head studs.
    Yep, I hear you. It could be done but seems you want some other differences in the motor anyway so make sense despite the added expense.

    What will happen with the current motor though?

  20. #20
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    Click here to enlarge Originally Posted by milkt Click here to enlarge
    Will you, the OP, be using 1/2 inch (0.5") ARP studs on this engine build?
    Yes sir - 1/2" + o-ring

    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Yep, I hear you. It could be done but seems you want some other differences in the motor anyway so make sense despite the added expense.

    What will happen with the current motor though?
    Tenatively sold, though I might just saran wrap it and put it in a shed in case I find a nice E30 or something.


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    Forgive me. The 1/2" diameter ARP stud usage was documented in the first post of this thread. My mistake.
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  22. #22
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    Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
    Tenatively sold, though I might just saran wrap it and put it in a shed in case I find a nice E30 or something.
    Sold to whom? How much $?

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    Have you considered an optional harmonic balancer besides the OE/stock unit to allow you a possible advantage of higher revolutions?
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Sold to whom? How much $?
    A local friend. Undisclosed amount.

    Click here to enlarge Originally Posted by milkt Click here to enlarge
    Have you considered an optional harmonic balancer besides the OE/stock unit to allow you a possible advantage of higher revolutions?
    Nah - that stuff is getting silly. Spinning a motor like this over 7200 - 7300 RPM is asking for trouble. A new/better balancer would help, but definitely not cure it. People don't realize that the ATI balancers and such don't just bolt on, the crank needs to be machined and or the balancer needs to be machined, and then the balancer pressed onto the crank. Its annoying.


  25. #25
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    Do you plan to do any machining or port work to the cylinder head for this next stage of your vehicle's history?
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