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Thread: T-erz m52 swap turbo e30 noob thread

  1. #51
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    After further research the torque spec for those 3 front bolts isn't 19 ftlbs, more like 7-8.... Derp

  2. #52
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    Question for the experienced guys:

    Should I heat wrap my manifold and Downpipe even with my turbo being air cooled aka no water lines? I like the idea of being able to see the shiny manifold but don't know if the under hood temps will be too out of control or if I should try to hold in that heat with no water lines. Also I heard that a turbo blanket is a no go on journal Bearing and especially air cooled. Any idea?

  3. #53
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    There is no such thing as an air cooled turbo. It is oil cooled. Its really a matter of personal preference. It helps quite a bit to remove the rubber seal around the edge of the hood. It lets the hot air go out the top.


    86 325es, 2.8L m50, S476sxe, ProEFI 128 ecu, e85, solid rear axle, TH400 trans, 28x10.5w slicks, zip ties, popsicle sticks, tape
    best time 9.06 @ 151.8 mph, best 60 foot 1.30

  4. #54
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    Quote Originally Posted by someguy2800 View Post
    There is no such thing as an air cooled turbo. It is oil cooled. Its really a matter of personal preference. It helps quite a bit to remove the rubber seal around the edge of the hood. It lets the hot air go out the top.
    Yeah that's what I meant, I'll definitely look at the hood seal

  5. #55
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    Got the motor all timed and together along with the vanos and all accessories. Turned the motor over by hand and everything is smooth so I'm happy

  6. #56
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    You are not the first to break one of those skinny front head bolts. NM is higher numerically than LBS.

  7. #57
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    T-erz m52 swap turbo e30 noob thread

    Quote Originally Posted by pbonsalb View Post
    You are not the first to break one of those skinny front head bolts. NM is higher numerically than LBS.
    Yeah I realize that. My friend who has all data is the one who told me 19 ft lbs, later go to find out it's like 98 in lbs or 7 ftlbs. I stopped using a torque wrench and just tightened everything until it was snug with a 1/4 drive ratchet and then went back and checked everything with the torque wrench after.

  8. #58
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    If you live in a cold winter climate I would not heat wrap the manifold. That wrap traps contaminants such as salty water and lead to accelerated manifold cracking. Then again that's theory and many have ran with wrap without issue. I personally would coat it or just save your $$$ and leave it bare.

    Also you should do s52 cams as previously stated. There are graphs out there, you just have to find them, that show quicker spool and better top end. The M50 manifold on the other hand I believe results in some low end spool loss, but definitely helps everything breath top end. I think most lean towards the top end preference so they go M50.

    The pics of the "staining" looks more like very minor pitting to me. Since you're not MLS you should be fine.

  9. #59
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    T-erz m52 swap turbo e30 noob thread

    Quote Originally Posted by cragg56 View Post
    If you live in a cold winter climate I would not heat wrap the manifold. That wrap traps contaminants such as salty water and lead to accelerated manifold cracking. Then again that's theory and many have ran with wrap without issue. I personally would coat it or just save your $$$ and leave it bare.

    Also you should do s52 cams as previously stated. There are graphs out there, you just have to find them, that show quicker spool and better top end. The M50 manifold on the other hand I believe results in some low end spool loss, but definitely helps everything breath top end. I think most lean towards the top end preference so they go M50.

    The pics of the "staining" looks more like very minor pitting to me. Since you're not MLS you should be fine.
    I live in Utah where it's cold half the year and then hot as hell the other half of the year so I'm going to roll without it I think. I may still crack open the valve cover to put cams in if i find some but the motor will be put all the way together by Friday so too late now. I passed on the m50 manifold for now. Just these pics. I think I'll be good on the copper gasket. If I was MLS I would have just had the block machined but I wanted to keep the bottom end unopened.

  10. #60
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    That's pitting. I think you'll be OK with the cuting

  11. #61
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    Quote Originally Posted by cragg56 View Post
    That's pitting. I think you'll be OK with the cuting
    What causes that? The motor had a victor reinz head gasket and the block had machine marks before I touched it so I'm sure it's been opened before

  12. #62
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    Coolant will do that over time. Look where the HG lines up and you'll see there is room for coolant to spread out a little past the coolant ports

  13. #63
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    Ok I see now. I wonder if that silica free coolant is less likely to do that or what. This motor had the generic green stuff in it

  14. #64
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    So close

  15. #65
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    My m20 let loose today, good motivation to finish this thing up!

  16. #66
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    My rally road oil feed showed up and it has a hole in the fitting on the end, anyone else ever get This?

  17. #67
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    That's fine. It's part of the manufacturing process to make that fitting

  18. #68
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    Quote Originally Posted by cragg56 View Post
    That's fine. It's part of the manufacturing process to make that fitting
    What's the idea behind that? It won't leak once it's on the turbo? It's only on one side of the line too

  19. #69
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  20. #70
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    Quote Originally Posted by grinchxvx View Post
    What's the idea behind that? It won't leak once it's on the turbo? It's only on one side of the line too
    My guess is its a pin or something to keep that piece on the tube and actually make it tighten down on the fitting you will attach it to

  21. #71
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    Quote Originally Posted by cragg56 View Post
    My guess is its a pin or something to keep that piece on the tube and actually make it tighten down on the fitting you will attach it to
    Like its punched through so it can't slip off? I lied about only one side having it, the other side has it too except it's plugged?

  22. #72
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    Yup. It keeps that female part on that 90 degree tube. That part of the fitting is not the sealing surface so no worry of leaks. Again, this is how the majority if not all fittings are manufactured. Do a google search

  23. #73
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    Quote Originally Posted by cragg56 View Post
    Yup. It keeps that female part on that 90 degree tube. That part of the fitting is not the sealing surface so no worry of leaks. Again, this is how the majority if not all fittings are manufactured. Do a google search
    I'll take your word for it

  24. #74
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    More parts flooding in

    I'm ordering my clutch, spark plugs, and injectors today and that will be the last of it hopefully

  25. #75
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    Anyone think my hood is going to actually close? G&T said that a gt40 fits on an e30 and that an s360 is only slightly bigger so it probably would clear the hood but idk now

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