Piston For Tw 170s Around 8.5:1 Compression

Discussion in '1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-' started by TOOLOW91, Feb 18, 2014.


  1. MY 85 GT

    MY 85 GT Well-Known Member

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    Yeah that is one thing I like about these forums guys are really great and helpful !!! My car has been turbo for almost 3 yrs...always ran good just need to do a re-tune and fix a few small issues..one is tops on my list is a catch can system...you might want to look into that also...with boost just something I learned...lol...
    #21
  2. 85rkyboby

    85rkyboby Active Member

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    @TOOLOW91 what else are you going to do to the motor while it's out and apart? I'm taking mine out soon as well.
    #22
  3. NIKwoaC

    NIKwoaC 中國製造

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    Yea there is not much sense in going through all the cost and time of putting new pistons in a stock block unless the cylinders are just completely shot. The stock forged pistons are more durable than the block anyway. With new pistons you'll have to re-balance and machine shop costs go up quickly. Have a (trusted) machinist look at it, but hopefully you can just get away with a ball home and fresh rings/bearings. These days the only reason to go through the trouble of boring and putting new pistons in the block is to also put a stroker kit in it. Keep it simple- throw heads on it, boost it, have fun.
    #23
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  4. 85rkyboby

    85rkyboby Active Member

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    @MY 85 GT Are you looking at any specific catch can systems or just making your own? I've looked at a few kits, unfortunately have heard mixed reviews. I'm sure most of the reviews are invalid as they aren't boosting.
    #24
  5. TOOLOW91

    TOOLOW91 Mustang Master

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    HCI, s trim . new oil pan , valve covers . pretty it up and all new gaskets with head studs
    #25
  6. MY 85 GT

    MY 85 GT Well-Known Member

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    '
    I have everything already I bought a new set of Trickflow valve covers..Bulk head fittings,lines,fittings etc and I have a Moroso catch can with -12 an fittings with a K&N air filter on top of the catch can...its a nice set-up just didn't get to install it yet...right now I just have the valve cover vented with a filter..no pcv with a filter in the lower intake...I want to plug the hole were the PCV goes and vent both valve covers..should be much better then the way I have it now...
    #26
  7. 85rkyboby

    85rkyboby Active Member

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    Sounds good I figured I'd change out my oil pan and seal, possibly bearings, and a gasket set. Now I'll probably change my rings out since @NIKwoaC suggests it.
    Oh okay. So you're plans to just do away with the PCV, and run both covers to the catch/vent can?
    #27
  8. MY 85 GT

    MY 85 GT Well-Known Member

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    ^^^ Yes I want to eliminate the PCV for now and if the tuning place thinks I need it I will install it back...I want to get a re-tune this yr...
    #28
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  9. TOOLOW91

    TOOLOW91 Mustang Master

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    I was looking into maybe a catch can as well . but haven't made it that far yet
    #29
  10. 84Ttop

    84Ttop They make new pistons every day, so why worry? SN Certified Technician Mod Dude

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    I like the idea on a boosted car of venting both vcovers and eliminating the PVC system. I have -10 vents on each of my covers going to a custom catch can and it has worked great so far. I will however recommend baffles in the valve covers if at all possible.
    #30
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  11. A5literMan

    A5literMan Mustang Master

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    What did you do with that piston/rod combo you were thinking about running? The ones from your old engine.
    #31
  12. TOOLOW91

    TOOLOW91 Mustang Master

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    The skirts are just way way to beat up for my liking . after thinking about it ill save the rods for when i do a dart block to make a 331 out of but i just dont want to risk the piston rocking in the motor.
    #32
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  13. 85rkyboby

    85rkyboby Active Member

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    What size is that catch can? I just read up on the catch cans again, as its been a year since I checked up on it last. It's my lucky day as your response. Thanks a billion @84Ttop!
    #33
  14. 85rkyboby

    85rkyboby Active Member

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    MMM DART Block, I'm so ready.
    #34
  15. 84Ttop

    84Ttop They make new pistons every day, so why worry? SN Certified Technician Mod Dude

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    The catch can is probably a quart and a half if I had to guess and I run a k&n breather on the top of it.
    #35
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  16. MY 85 GT

    MY 85 GT Well-Known Member

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    ^^^^ Mine is like yours Its a decent size and it has the K&N filter on top...and the bulk head fittings im using for the vlave covers have built in baffles...just havent installed the set-up yet...lol...
    #36

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