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having an issue w/rear shocks on my crt.5
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magman
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having an issue w/rear shocks on my crt.5 - 11.10.2008, 07:14 PM

My prob. is this...seeing as I bought the truck used, not sure of the manufacturer of the rear ( front buggy shocks ) shocks. I can't seem to get the right spring rebound I want. I have tried oils from 20 -50wt. and I am still not happy. They won't rebound enough...seem to stick. The shafts are not bent. My thought was to drill the holes out in the damper a little bigger to allow more oil to pass through...good idea, bad. I could probably just get new springs......but, money is v/tight right now.


1. MBX-6 T8 1900KV, RX8 ON 4S
2. MBX-5T 1520, MMM ON 5S
3. MBX-5 ONROAD CONVERSION 1515, MMM ON 5S
4. MRX-3 ON ROAD CONVERSION 1512, MMM ON 6S
5. TEN T 2650 T8, MMP ON 3S

Last edited by magman; 11.10.2008 at 07:15 PM.
   
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david lamontagn
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11.10.2008, 07:59 PM

I've Ofna LX one front shock on the rear of my slash and crt.5.
I've drill one more hole (0.85mm) on the shock piston, with 45WT oil and it seem to work very fine.
   
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magman
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11.10.2008, 09:05 PM

David, I am thinking of drilling one more hole...problem is that if I screw up, I don't have any spare parts!


1. MBX-6 T8 1900KV, RX8 ON 4S
2. MBX-5T 1520, MMM ON 5S
3. MBX-5 ONROAD CONVERSION 1515, MMM ON 5S
4. MRX-3 ON ROAD CONVERSION 1512, MMM ON 6S
5. TEN T 2650 T8, MMP ON 3S
   
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david lamontagn
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11.10.2008, 11:21 PM

Don,t worry, start with a 0.6mm, put 40WT oil and try it. If the result is not what you want, re open it, enlarge the hole by .1mm and retry it.

That's what i've did, it take some time but with somes littles Budweiser, it's a nice job to do
   
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GO-RIDE.com
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11.10.2008, 11:52 PM

I run the 13mm Ofna front buggy shocks on the back of my e-crt.5. The ones I have came stock with (2) 1.4mm holes in each piston. I went as light as 25wt oil and the rebound was good, but there was too much pack in the whoops causing the rear to bounce around. I bought a Kyosho 13mm piston kit (amain part# XRA358035) and now use the 1.5mm hole pistons with 30 wt oil. The rear is much better both in the bumps and on rebound.

What springs are you using? Do you know the rate?


E-CRT.5 Monster - RCM chassis, MM/Medusa 50x3300/3s, truck tires, 1/8 shocks
E-CRT.5 Stock - Sidewinder/4600/2s, buggy tires
E-8ight - Tekin RX8 2000kv/4S
E-8ight T- Tekin RX8 1700kv/5S
   
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magman
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11.11.2008, 09:34 AM

Quote:
Originally Posted by david lamontagn View Post
Don,t worry, start with a 0.6mm, put 40WT oil and try it. If the result is not what you want, re open it, enlarge the hole by .1mm and retry it.

That's what i've did, it take some time but with somes littles Budweiser, it's a nice job to do
Thanks David, and for me...my posion of choice is Coors Light


1. MBX-6 T8 1900KV, RX8 ON 4S
2. MBX-5T 1520, MMM ON 5S
3. MBX-5 ONROAD CONVERSION 1515, MMM ON 5S
4. MRX-3 ON ROAD CONVERSION 1512, MMM ON 6S
5. TEN T 2650 T8, MMP ON 3S
   
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magman
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11.11.2008, 09:51 AM

Quote:
Originally Posted by GO-RIDE.com View Post
I run the 13mm Ofna front buggy shocks on the back of my e-crt.5. The ones I have came stock with (2) 1.4mm holes in each piston. I went as light as 25wt oil and the rebound was good, but there was too much pack in the whoops causing the rear to bounce around. I bought a Kyosho 13mm piston kit (amain part# XRA358035) and now use the 1.5mm hole pistons with 30 wt oil. The rear is much better both in the bumps and on rebound.

What springs are you using? Do you know the rate?
The springs are white...I think they are form the ofna buggy line...not sure. The piston only has 2 holes in it

The shocks I have are these...http://www.amainhobbies.com/product_...oducts_id/4441

And these are the pistons.....http://www.amainhobbies.com/product_...oducts_id/4446


1. MBX-6 T8 1900KV, RX8 ON 4S
2. MBX-5T 1520, MMM ON 5S
3. MBX-5 ONROAD CONVERSION 1515, MMM ON 5S
4. MRX-3 ON ROAD CONVERSION 1512, MMM ON 6S
5. TEN T 2650 T8, MMP ON 3S

Last edited by magman; 11.11.2008 at 09:53 AM.
   
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GO-RIDE.com
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11.11.2008, 10:25 AM

Those are the same shocks I have and the white pistons are the 1.4mm version. I believe the Ofna/Hongnor white springs are pretty stiff, but I don't have my spring rate chart at home. I'll check my work computer later today.


E-CRT.5 Monster - RCM chassis, MM/Medusa 50x3300/3s, truck tires, 1/8 shocks
E-CRT.5 Stock - Sidewinder/4600/2s, buggy tires
E-8ight - Tekin RX8 2000kv/4S
E-8ight T- Tekin RX8 1700kv/5S
   
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magman
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11.11.2008, 02:15 PM

Quote:
Originally Posted by GO-RIDE.com View Post
Those are the same shocks I have and the white pistons are the 1.4mm version. I believe the Ofna/Hongnor white springs are pretty stiff, but I don't have my spring rate chart at home. I'll check my work computer later today.
Thanks!


1. MBX-6 T8 1900KV, RX8 ON 4S
2. MBX-5T 1520, MMM ON 5S
3. MBX-5 ONROAD CONVERSION 1515, MMM ON 5S
4. MRX-3 ON ROAD CONVERSION 1512, MMM ON 6S
5. TEN T 2650 T8, MMP ON 3S
   
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GO-RIDE.com
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11.12.2008, 02:22 PM

I don't have the white springs on my chart, but did find another chart on line that listed a Hongnor white spring at about a .85 which is pretty stiff. However, it seems your rebound is too slow so those white springs are probably from some other manufacture and who knows what rate they are.


E-CRT.5 Monster - RCM chassis, MM/Medusa 50x3300/3s, truck tires, 1/8 shocks
E-CRT.5 Stock - Sidewinder/4600/2s, buggy tires
E-8ight - Tekin RX8 2000kv/4S
E-8ight T- Tekin RX8 1700kv/5S
   
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