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Roche Rapide F1 Evo

Old 10-03-2017, 07:09 AM
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Raced my new Evo Sunday on fresh black carpet; 571/572 tires, front tires glued. 1 camber, 3 caster, 1.5mm pod droop, otherwise kit setup. It was quick & stable, very nice to drive.
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Old 10-03-2017, 06:40 PM
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what wings work on this chassis?
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Old 10-05-2017, 09:12 PM
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Originally Posted by dman18t View Post
what wings work on this chassis?
Any does Tamiya type f1 cars. Popular manufactures include protoform and Mon-Tech
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Old 10-05-2017, 10:01 PM
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+1 on the Montech.
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Old 10-11-2017, 08:23 PM
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Default Pivot ball bushing, spur gear

Ran the Roche 2016 last night in stock setup on a high grip asphalt track. I'm not sure if i should post this in the 2016 thread or here, but i really need some help.

1. Front arms kept hopping like rabbits on steroids during high speed corners with snapping sound of metal rubbing against metal. I believe it's the king pin rubbing against the pivot balls.
(All pivot balls are free with no binding. 7k shock oil on the king pin shaft.)

2. I used pliers to pinch the front arms pivot ball bushing to remove the binding. I think i overdid it. Now the pivot balls pop out very easily. Is there a better solution? I've read in the Roche 2016 thread that Xray bushings will fit. Is this a good solution?

3. Stripped the spur. Noticed it's not perfectly centered. Is there a better alternative?

Thanks very much in advance!

Gab
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Old 10-12-2017, 04:53 AM
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Originally Posted by gabc View Post
Ran the Roche 2016 last night in stock setup on a high grip asphalt track. I'm not sure if i should post this in the 2016 thread or here, but i really need some help.

1. Front arms kept hopping like rabbits on steroids during high speed corners with snapping sound of metal rubbing against metal. I believe it's the king pin rubbing against the pivot balls.
(All pivot balls are free with no binding. 7k shock oil on the king pin shaft.)

2. I used pliers to pinch the front arms pivot ball bushing to remove the binding. I think i overdid it. Now the pivot balls pop out very easily. Is there a better solution? I've read in the Roche 2016 thread that Xray bushings will fit. Is this a good solution?

3. Stripped the spur. Noticed it's not perfectly centered. Is there a better alternative?

Thanks very much in advance!

Gab
Granted this is for carpet... But...

I added weight under the bell crank, approx. 2 oz. of tungsten
I also set it up for 1.5mm of droop in the front.
With the 16 kit I had to go to shorter standoffs to gain ground clearance.

I haven't had problems with the pivots popping out, so I'm not sure about that...

I noticed the spur was running out also, I use a Kimbrough 92 when I run a ball diff. 99% of the time I use a gear diff with a 92
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Old 10-12-2017, 07:16 PM
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Thanks sg1! Will try that.

Is the hopping front wheels n rubbing metal sound due to the front being not heavy enough?

Where i am i don't have easy access to Kimborough spurs. Only Xray n Roche spurs. Will the Xray work better? What is the go-to spur for this car? Thanks!

Gab

Originally Posted by sg1 View Post
Granted this is for carpet... But...

I added weight under the bell crank, approx. 2 oz. of tungsten
I also set it up for 1.5mm of droop in the front.
With the 16 kit I had to go to shorter standoffs to gain ground clearance.

I haven't had problems with the pivots popping out, so I'm not sure about that...

I noticed the spur was running out also, I use a Kimbrough 92 when I run a ball diff. 99% of the time I use a gear diff with a 92
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Old 10-13-2017, 04:27 AM
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Originally Posted by gabc View Post
Thanks sg1! Will try that.

Is the hopping front wheels n rubbing metal sound due to the front being not heavy enough?

Where i am i don't have easy access to Kimborough spurs. Only Xray n Roche spurs. Will the Xray work better? What is the go-to spur for this car? Thanks!

Gab
I'd try the X-Ray ones.
If you wanted I can ship gears to you.
Not sure about the metal sound, are you sure it's from the front suspension?
Can you post a picture of the set up?
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Old 10-14-2017, 05:54 AM
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Thanks for offering sg1!
I just got the Xray bushings n spur. Will try them out n update the results.

Please refer to the photos n video. It's stock setup except i used shorter 10mm front standoffs.

Note that during my first run, the track had a left turning high speed sweeper. Hence car rolled right. Thus, you'll notice that the graphite pattern chassis protector has most of its wear on the right side too.

YouTube video: https://youtu.be/VMDpx17UroA





Originally Posted by sg1 View Post
I'd try the X-Ray ones.
If you wanted I can ship gears to you.
Not sure about the metal sound, are you sure it's from the front suspension?
Can you post a picture of the set up?













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Old 10-16-2017, 04:03 PM
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Gabc- Brilliant idea .. thumb nuts to secure the top plate.. anyone make matching red anodized ones?
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Old 10-16-2017, 04:57 PM
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Exotek, red!

ALLOY TWIST NUTS - Exotek Racing
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Old 10-17-2017, 11:03 AM
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Originally Posted by gabc View Post
Thanks for offering sg1!
I just got the Xray bushings n spur. Will try them out n update the results.

Please refer to the photos n video. It's stock setup except i used shorter 10mm front standoffs.

Note that during my first run, the track had a left turning high speed sweeper. Hence car rolled right. Thus, you'll notice that the graphite pattern chassis protector has most of its wear on the right side too.

YouTube video: https://youtu.be/VMDpx17UroA




















A few things I seen you may want to try....

-remove spacers from rear wing mount or use much shorter (bring wing closer to rear axle)
-remove shim from under steering block (add droop)
-less steering turnbuckle angle (change Akerman)
-add weight under bellcrank (2oz. min.)
-Try batteries inline
-Try raising shock at upper pod plate mount
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Old 10-17-2017, 11:06 AM
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gabc...

I posted a pic of my old car on the other thread so we don't clutter this one up... lol
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Old 10-17-2017, 02:41 PM
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Originally Posted by gabc View Post
Thanks sg1! Will try that.

Is the hopping front wheels n rubbing metal sound due to the front being not heavy enough?

Where i am i don't have easy access to Kimborough spurs. Only Xray n Roche spurs. Will the Xray work better? What is the go-to spur for this car? Thanks!

Gab
If your not running a soft kingpin spring a softer kingpin spring might also help
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Old 10-18-2017, 04:57 AM
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Originally Posted by idbdoug View Post
If your not running a soft kingpin spring a softer kingpin spring might also help
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I agree, I run Assoc. .018" and have even tried .016" with 30K grease on the kingpins
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