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Thread: Someone's going to go fast next year.....

  1. #46
    Join Date
    Apr 2002
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    Madison, Ohio
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    Hey sweet! I ordered some from him. I went through my stash of spindles/hubs and turns out that from 6 all have spun the inner race at least one time and have very little press fit left. So I'd rather just use new ones for this project.
    Quote Originally Posted by Miller View Post
    Ya thats why i tape mine down. People think its bc i dont have a moonroof seal (which is true) but its really to keep my roof from ripping off .
    Email me here.

  2. #47
    Join Date
    Apr 2002
    Location
    St. Charles, MO
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    20,027
    Quote Originally Posted by CMac89 View Post
    Interesting stuff. If this is a stick car, those are the type of suspension upgrades necessary to reduce bouncing the tires like basketballs. Especially for a car making a lot of ponies. Nobody blindly makes 450+rwhp and doesn't touch the suspension!

    Or do they?
    Sure they do

    David
    91 SC AOD 4.2..2.3 Whipple........10.92 @ 126.70
    93 SC AOD 347 Turbo.................10.04 @ 138.99
    My Garage

  3. #48
    Join Date
    Aug 2004
    Location
    Long Island, NY 11793
    Posts
    4,928
    Originally Posted by CMac89
    Interesting stuff. If this is a stick car, those are the type of suspension upgrades necessary to reduce bouncing the tires like basketballs. Especially for a car making a lot of ponies. Nobody blindly makes 450+rwhp and doesn't touch the suspension!

    Or do they?
    Quote Originally Posted by David Neibert View Post
    Sure they do

    David
    Indeed

    Ira

  4. #49
    Join Date
    May 2006
    Location
    Chicago, IL
    Posts
    858
    Quote Originally Posted by XR7 Dave View Post
    Hey sweet! I ordered some from him. I went through my stash of spindles/hubs and turns out that from 6 all have spun the inner race at least one time and have very little press fit left. So I'd rather just use new ones for this project.
    ^X4 me too!
    3 SC's over a pair of SHO's ...

    Plat O Ribs Full House of SVT!
    SCCoA Member#: 3251

  5. #50
    Join Date
    Apr 2002
    Location
    Lakeville, MN
    Posts
    13,471
    how many miles on the motor when disassembled? How did the piston bores look? How did the skirt coating look? And how did the piston tops look? I'm curious how the coatings hold up and any difference in cylinder wear on the switch to the forged pistons, or the longer rods. I.e. is there any reason to think the options selected for this motor originally were unnecessary or did provide some benefit?
    Oh, and how did the rings look?
    T-Bird How To tips - Latest, reattach glass to regulator sash clips
    90 SC AOD its time is nearly up
    93 SC 5spd -441hp/462tq *SOLD*

  6. #51
    Join Date
    Jun 2002
    Location
    Hamilton, Ontario
    Posts
    1,006
    Dave, what's been applied to the pistons between the compression rings? Is that more moly graphite coating or something else?

  7. #52
    Join Date
    Apr 2002
    Location
    Madison, Ohio
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    People who have 450+rwhp and stock suspension are leaving a lot on the table. To some people that approach is unacceptable.

    Mike, coatings held up really well. Tops are perfect, and the skirts just show some light wear. I contemplated having the skirts redone but decided against it. The cylinders had some wear from the pistons rocking in the bores which I think came from detonation moreso than anything to do with piston design.

    Rings (chrome faced SS) looked fine. We were able to clean up the bores by removing only about .0005" so everything will go back together within spec. These pistons were originally installed at .0045" and so now they are at about .0050". Maximum reliable clearance for these particular pistons is about .0065".

    Paul, I think you are seeing shadows from the ring grooves or maybe the pressure balance groove. There is no coating or anything at all above the bottom oil rail.
    Quote Originally Posted by Miller View Post
    Ya thats why i tape mine down. People think its bc i dont have a moonroof seal (which is true) but its really to keep my roof from ripping off .
    Email me here.

  8. #53
    Join Date
    Jun 2002
    Location
    Hamilton, Ontario
    Posts
    1,006
    pressure balance groove
    I looked at the picture again and zoomed in... it IS a groove between the compression ring grooves. What purpose does this serve?

  9. #54
    Join Date
    Apr 2002
    Location
    Lakeville, MN
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    13,471
    Quote Originally Posted by Paul93SC View Post
    I looked at the picture again and zoomed in... it IS a groove between the compression ring grooves. What purpose does this serve?
    Not sure if that piston has both attributes, but there are Anti-detonation grooves that typically go on piston before the top ring. Then there is a pressure groove between the 1st ring and 2nd ring.
    from this post:http://forums.nasioc.com/forums/showthread.php?t=907570
    What are the pressure grooves or equalization channel on the 2nd ring land for?

    The accumulation of gases that get by the top ring can unseat it. A pressure groove delays this action. This is why today's recommendation is to keep the 2nd ring end-gap as large as or larger than the top ring end-gap. It is a shaped channel that works by equalizing the pressure seen between the top and second ring with the pressure in the combustion chamber. This feature enhances ring seal, improving power, and engine life and fuel economy. The presence of this feature depends on your piston manufacturer as some have them, some donít.
    T-Bird How To tips - Latest, reattach glass to regulator sash clips
    90 SC AOD its time is nearly up
    93 SC 5spd -441hp/462tq *SOLD*

  10. #55
    Join Date
    Oct 2007
    Location
    US, Mi, Detroit Metro
    Posts
    125
    I wanna be like Dave when I grow up.

  11. #56
    Join Date
    Apr 2002
    Location
    St. Charles, MO
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    20,027
    People who have 450+rwhp and stock suspension are leaving a lot on the table.
    Dave,

    Please explain what the benifits to upgrading the suspension are. For example, will upgrading the suspension like you have done here make it quicker/faster at the drag strip ?

    David
    91 SC AOD 4.2..2.3 Whipple........10.92 @ 126.70
    93 SC AOD 347 Turbo.................10.04 @ 138.99
    My Garage

  12. #57
    Join Date
    Jul 2010
    Posts
    252
    Quote Originally Posted by DLF View Post
    THIS is a good eBay seller to buy new Ford rear hubs (T-Bird pattern) from.

    He'll accept an offer of $40 for a pair, I've done it twice.
    Is that correct? ($40 for a pair) Less than half the listed price?

  13. #58
    Join Date
    Apr 2002
    Location
    Forked River, NJ
    Posts
    2,092
    Quote Originally Posted by PDQ SC View Post
    Is that correct? ($40 for a pair) Less than half the listed price?
    Sorry, $40 each.

  14. #59
    Join Date
    Aug 2006
    Location
    villa nova, Ontario, Canada
    Posts
    699
    Still cheap

  15. #60
    Join Date
    Jan 2003
    Location
    Woodbridge, VA
    Posts
    4,606
    [QUOTE=XR7 Dave;925477]People who have 450+rwhp and stock suspension are leaving a lot on the table. To some people that approach is unacceptable.QUOTE]

    I leave mine stock so everyone else can keep up. Oh wait I don't make 450rwhp so guess I don't need it yet.

    But really I do need to find out if the subframe I put in has the delrin or not.
    ~Chris
    SCCoA Member #1826
    Riding jack stands.

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