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Old 07-30-2013, 02:39 AM   #4441
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what's a good futaba servo to get?

The Orion servo I have rubs the steering post ...
If you are dead set on Futaba I would suggest the BLS551. The S9551 is good too just lacks the brushless motor of the BLS551.

If you are open to other suggestions I'd suggest the Ko Propo One10. One of the best servos I've ever used.
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Old 07-30-2013, 04:34 AM   #4442
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I have a on and off power push. anything I can change that would get rid of this...

I am running the stock asphalt setup with -.75 roll center up front and 42w front and 40 rear oil...


I run outdoor asphalt sprayed with sugar water ...
stick with the -075 on the ff but on the fr use the -00,reducing the caster will help and the anti dive will help when on the brakes,or put a 1mm shim under fr and leave the -75 on
and depending on tyre wear 1deg of camber helps
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Old 07-30-2013, 05:05 AM   #4443
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I have a on and off power push. anything I can change that would get rid of this...

I am running the stock asphalt setup with -.75 roll center up front and 42w front and 40 rear oil...


I run outdoor asphalt sprayed with sugar water ...
Can you attach your current setup sheet?
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Old 07-30-2013, 06:00 AM   #4444
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Questions??

Excuse for all, could you tell me if is necessary to change from composite to aluminum cross pin of NT1 in rear gear diff, but i am sure that i will use in front gear, due is using steel gear of NT1 and steel outdrive .
In fact when i used TRF417 rear diff then recommend me not to use original 1 but to change occasionally due the wear in the joint.

Thanks for reply!
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Old 07-30-2013, 06:10 AM   #4445
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Excuse for all, could you tell me if is necessary to change from composite to aluminum cross pin of NT1 in rear gear diff, but i am sure that i will use in front gear, due is using steel gear of NT1 and steel outdrive .
In fact when i used TRF417 rear diff then recommend me not to use original 1 but to change occasionally due the wear in the joint.

Thanks for reply!
If i understand your question, the answer is no, you don't need to run the nt1 steel gears and you don't need to upgrade the cross pin. I have a T4 and an NT1 and i only run steel gears in the rear diff of my NT1 with the lightweight cross pins.
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Old 07-30-2013, 06:15 AM   #4446
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Default Mod Gearing Question

Mod gearing question? I know the ball park is 8.3, but it seems only the stock 84T 48P gear will work if you want to use 48P. The 84T is pretty close to the bottom of the chassis. That being said i can get away with a 19T and 20T pinion to fall between 8.0-8.4. Do you guys run 64P gears with mod or are you guys running about the same gearing with 48P gears? Also, has anyone tried to fit the 87T 48P XRAY gear on the T4? If so, does it fit, or is it poking out the bottom of the chassis
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Old 07-30-2013, 07:32 AM   #4447
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Mod gearing question? I know the ball park is 8.3, but it seems only the stock 84T 48P gear will work if you want to use 48P. The 84T is pretty close to the bottom of the chassis. That being said i can get away with a 19T and 20T pinion to fall between 8.0-8.4. Do you guys run 64P gears with mod or are you guys running about the same gearing with 48P gears? Also, has anyone tried to fit the 87T 48P XRAY gear on the T4? If so, does it fit, or is it poking out the bottom of the chassis
I am able to just fit an 18t pinion with the 84 spur in my car. Normally I run a 19/84 with the 4.5t.

On the T3 2012 you had to dremel just a touch off the top deck to get a 17t pinion on but the T4 top deck doesn't have enough material for me to feel safe taking any off and I have no need to gear that high.
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Old 07-30-2013, 08:34 AM   #4448
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Originally Posted by esckalayd View Post
Mod gearing question? I know the ball park is 8.3, but it seems only the stock 84T 48P gear will work if you want to use 48P. The 84T is pretty close to the bottom of the chassis. That being said i can get away with a 19T and 20T pinion to fall between 8.0-8.4. Do you guys run 64P gears with mod or are you guys running about the same gearing with 48P gears? Also, has anyone tried to fit the 87T 48P XRAY gear on the T4? If so, does it fit, or is it poking out the bottom of the chassis
In 48dp the 86t spur is level with the bottom of the chassis.

I just run an 82t spur for Mod, If I recall, it ends up around 8.2fdr

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Old 07-30-2013, 10:06 AM   #4449
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if i narrow the front track width what/when would i benifit from it? currently i run 2mm ff and 1.5 fr i just changed it to 1.5 ff and .5 fr?
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Old 07-30-2013, 10:17 AM   #4450
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if i narrow the front track width what/when would i benifit from it? currently i run 2mm ff and 1.5 fr i just changed it to 1.5 ff and .5 fr?
I haven't tested that, but I imagine the car would turn in harder and change direction more quickly. Make sure the driveshafts do not bottom out in the drive cups.
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Old 07-30-2013, 10:37 AM   #4451
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I haven't tested that, but I imagine the car would turn in harder and change direction more quickly. Make sure the driveshafts do not bottom out in the drive cups.
thanks for the info and no worries there im using 50mm fronts,im lucky to have a nice patch of low grip tarmac outside my house and after a quick play about i believe your right,im finally making some progress with the t4

although im doubting myself a little with that much arm sweep,would it be better with just 1mm ff?
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Old 07-30-2013, 12:01 PM   #4452
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If i understand your question, the answer is no, you don't need to run the nt1 steel gears and you don't need to upgrade the cross pin. I have a T4 and an NT1 and i only run steel gears in the rear diff of my NT1 with the lightweight cross pins.
Sorry for my mistake in writing.
But thanks for you!
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Old 07-30-2013, 06:59 PM   #4453
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Can you attach your current setup sheet?
It is basically the kit setup

With -75 roll center in the front

42.5w up front
40w rear
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Old 07-30-2013, 07:26 PM   #4454
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It is basically the kit setup

With -75 roll center in the front

42.5w up front
40w rear
Shoot me a "pm" with email address and I will forward setup sheet that you can try if you'd like.
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Old 07-31-2013, 02:19 AM   #4455
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It is basically the kit setup

With -75 roll center in the front

42.5w up front
40w rear
If you're running kit, stiffer rear springs would be the first thing I change.

Perhaps try softer oil as well.
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