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Thread: How Do You Bulit Proof Your Tanny?

  1. #31
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    I hope the tranny can handle the heavier truck either way ( S/C'd or not)

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    "How Do You Bulit Proof Your Tranny?"

    Sorry to say but there's no such thing!
    I have had my 4R70W built/built again with every part out there/added a PI TC and added some other parts we found on the market.
    And yesterday it went out again. No 3rd or OD
    If you make enough power it's going to break.
    I'm looking in to a BTS 4R100 now. Maybe that will do the trick.

    Phil
    Built Lightning block,
    stage 3 ported heads and Comp cams,
    ported L intake manifold.
    2.3 Kenne Bell blower at 16 PSI
    New BTS 4R100 tranny
    100 shot Nitrous
    Best 1/4 to date
    60'-1.6
    1/4-11.76 @ 116.17 MPH

  3. #33
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    Quote Originally Posted by phil6608 View Post
    "How Do You Bulit Proof Your Tranny?"

    Sorry to say but there's no such thing!
    I have had my 4R70W built/built again with every part out there/added a PI TC and added some other parts we found on the market.
    And yesterday it went out again. No 3rd or OD
    If you make enough power it's going to break.
    I'm looking in to a BTS 4R100 now. Maybe that will do the trick.

    Phil
    Phil,

    Looking at your mods you should've really started out with a BTS 4R100 from the get go. Let us know if you do and check back after it's been broken in.

    Later...
    Bruce

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    Quote Originally Posted by Black 2003 View Post
    Phil,

    Looking at your mods you should've really started out with a BTS 4R100 from the get go. Let us know if you do and check back after it's been broken in.

    Later...
    Bruce
    Ya,,hahaha and I should have started out with a 2 wheel drive to.But I never planed on making a lot of power when I bought the truck.
    And when I had the tranny done I thought, well if Johnny Lightning can run a 4R70W, Then I could build it up and be ok.But,,live and learn,,lol.
    I wanted to use my tranny because it's lighter. Didn't need to add any more weight.

    Phil

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    Quote Originally Posted by phil6608 View Post
    And when I had the tranny done I thought, well if Johnny Lightning can run a 4R70W, Then I could build it up and be ok.But,,live and learn,,lol.
    I wanted to use my tranny because it's lighter. Didn't need to add any more weight.

    Phil
    That's some "top secret" tranny mods there.

    Later...
    Bruce

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    Oh phil but there is a production car that the engineers worked 6 years on the tranny so hold up to the 1001Hp it produces. Bugatti Veyron.
    But for our trucks NO.
    Tazz

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    Quote Originally Posted by Tazz View Post
    Oh phil but there is a production car that the engineers worked 6 years on the tranny so hold up to the 1001Hp it produces. Bugatti Veyron.
    But for our trucks NO.
    Tazz
    hahaha My tranny is built for 1000 HP. All the hard parts are holding up for me but the clutches still go. And there the kevlar or whatever you call them.The best clutches you can get!

    Phil

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    if you need a tranny harness for a 4R100, lemme know. I've got a spare one, just gotta find it. I did the swap from 4R70W to 4R100 during my whole buildup winter before last

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    Quote Originally Posted by Harley#356 View Post
    if you need a tranny harness for a 4R100, lemme know. I've got a spare one, just gotta find it. I did the swap from 4R70W to 4R100 during my whole buildup winter before last
    Hay thank you.
    I'll ask my tuner/builder if he is going to need it and let you know.

    Phil

  10. #40
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    no problemo! shot you a PM with a bunch of info. you will need the tranny harness. the 4R100 is setup totally different than the 4R70W so all the sensors, etc. are a bit different.

    who exactly is your tuner/builder? I'm assuming somebody in the tri-state region? you gotta get that truck to one of the DelVal meets coming up!

  11. #41
    SmknHD
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    What is the maximum HP you can apply to a 4R100 with a FTVB only (stock converter, etc.) for the street and expect it to live?

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    I don't think there is a resonable number that you can point to that will say at this point it will fail. Each tranny is different and driven differently. There are alot of people drving around with trucks in the 380-400+ HP on stockers. Mine was rebuilt by Ford once already...387/469 the last time I was on a dyno.

  13. #43
    SmknHD
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    I just finished having my mother built (after joining the VBC). KB 2.6, Ross Pistons, H-beam rods, ported heads, stainless valves, good springs, head studs. I am hoping for 450-500hp. I am planning on a FTVB and a Moroso pan. Just wondering if I will be looking at transmission issues....

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    Quote Originally Posted by smknhd View Post
    I just finished having my mother built (after joining the VBC). KB 2.6, Ross Pistons, H-beam rods, ported heads, stainless valves, good springs, head studs. I am hoping for 450-500hp. I am planning on a FTVB and a Moroso pan. Just wondering if I will be looking at transmission issues....
    SO what exactly was wrong with your mother that she needed a rebuild?

    Later...
    Bruce

  15. #45
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    too funny.


    the 4R100 is pretty stout. you should be okay with 450-500 hp to the wheels, but its a hard call to make. some guys trannies have gone when they were bone stock, other guys have put some serious power through them. a number of L's on NLOC with the same tranny have ran 10's and 11's on the stock trans with just a converter and valve body.

    i'd keep it in the back of your mind for a future upgrade down the road, but I wouldnt be too worried about killing it in the first 100 miles

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