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Thread: Cross-member alternatives

  1. #1
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    rpk2012's Avatar
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    Default Cross-member alternatives

    I did a few searches on this, so please kick me if I just didn't see the thread.

    I am wanting to see if there are any tubular options for other swap possibilities, and space?

    Thanks.
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    Originally posted by DerockNC
    That's like not parking in handicap parking but parking in the pregnant mother's spot. It's not illegal but you still get the dirty looks.

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    Default Re: Cross-member alternatives

    Quote Originally Posted by rpk2012 View Post
    I did a few searches on this, so please kick me if I just didn't see the thread.

    I am wanting to see if there are any tubular options for other swap possibilities, and space?

    Thanks.
    Tubular options - for MA70? Highly unlikely ,not even in Group A where IIRC the subframes were locked to be OEM only. You can always use Aluminum-alloys SC300 front SubFrame ,but this will require some creativity and engineering to be installed. Why would you need tubular anyways?

  3. #3
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    Default Re: Cross-member alternatives

    For something like a larger engine with a heftier oil pan, make more room to work on the engine, and ect. I have large hands, so an Ls, lets say, with longtubes and a larger oul pan may create space issues for me.
    Current-
    '89 Supra Turbo MA70 GT-Limited RHD
    '15 VW Jetta - DD
    OLD-
    Too long to list.

    Originally posted by DerockNC
    That's like not parking in handicap parking but parking in the pregnant mother's spot. It's not illegal but you still get the dirty looks.

  4. #4
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    Default Re: Cross-member alternatives

    Quote Originally Posted by rpk2012 View Post
    For something like a larger engine with a heftier oil pan, make more room to work on the engine, and ect. I have large hands, so an Ls, lets say, with longtubes and a larger oul pan may create space issues for me.
    LS in MK3 - this may actually give you a better fuel economy than the 1G-GEU 2.0 N/A EUDM Supras !

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    Default Re: Cross-member alternatives

    Quote Originally Posted by LordDigital View Post
    LS in MK3 - this may actually give you a better fuel economy than the 1G-GEU 2.0 N/A EUDM Supras !
    Without a doubt. In no universe should a 2.0 ever be attempting to move a car that weighs more than 3000 lbs...

    OP, from everything I've come across over the years, you're pretty much on your own. IJ looked into the matter much more seriously than I did (at least I'm pretty sure he did), and came to the conclusion that to build one as strong, it would be every bit as heavy. That said, if you're feeling frisky... make sure you document it with lots of pictures.
    -Brad
    1948 Chevrolet Fleetmaster, 1987 Supra Hardtop, 1989 Supra Targa, 1993 LS400, 1999 Miata
    Fast cars, loud guitars, a lot of hard work, patience, and crazy ideas. Yup, that about sums up my life.

    How to live with a Supra

  6. #6
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    Default Re: Cross-member alternatives

    Fast forward some years, new project and again I end up at this crossroad.

    This time weight savings is not a real reason, but rather space savings. Looking to run a front sump engine and there is not a viable solution that isnt astronomically expensive.

    Any new leads to possibly get me started or am I on my own?
    Current-
    '89 Supra Turbo MA70 GT-Limited RHD
    '15 VW Jetta - DD
    OLD-
    Too long to list.

    Originally posted by DerockNC
    That's like not parking in handicap parking but parking in the pregnant mother's spot. It's not illegal but you still get the dirty looks.

  7. #7
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    Default Re: Cross-member alternatives

    Pretty much on your own. especially for the front sump. that would require you to switch to rear steer for the rack. front sump= rear rack mount. rear sump = front rack mount. better option would be to go dry sump with a flat sump and that would solve all your issues.

    Problem with a tubular subframe is that all the suspension and steering rack mount to it. so its likely to be heavier than stock. and very small amount if any people would ever buy it. hence why no one makes one. and if they did it would be 1 off for there car.

    could make gains as far as suspension geometry is concerned tho

  8. #8
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    Default Re: Cross-member alternatives

    My issue is that dry sump is not really available. Places like Dailey Engineering want 15+k to do it, but don't want to do it and quote a 6 month wait time at minimum before they even get to it.

    I may eventually eat the cost, but definitely want to avoid the cost/wait.
    Current-
    '89 Supra Turbo MA70 GT-Limited RHD
    '15 VW Jetta - DD
    OLD-
    Too long to list.

    Originally posted by DerockNC
    That's like not parking in handicap parking but parking in the pregnant mother's spot. It's not illegal but you still get the dirty looks.

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