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Old 02-18-2007, 10:49 PM   #1981
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Originally Posted by JWRockman
I have a couple of questions about building the shocks.
1. How tight should the pistion fit inside the shock body. The piston seems to be tight against the inside wall of the shock body. Should I smooth down the piston more to make it looser?
2. When threading on the bottom shock caps where the rubber seals are will hand tight be enough? I tried to use pliers while covering the cap before putting the pliers on and it scratched the cap. Is there another way? I did put on some blue locktite on the threads.
Thanks.
Rockman
hand tighten is all that needed bud. Haven't had one back off yet in 3 gallons of fuel
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Old 02-18-2007, 11:03 PM   #1982
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Hey guys I am looking for a new motor for my 8ight and my limit is $200.00 dollars and I was wondering if this is a good motor and if anybody can tell me if it is worth buying. Now I know it is a Italian made motor so I know it will be good.
I too have this motor, runs very well on a JP-2 pipe. It's supprisingly powerful for a 3-port, and very efficient. I managed a 14 minute run with it!(I wouldn't have believed it myself had I not timed it). It's been a great motor, very few flameouts(plugs going bad, fuel line pinched, never the motor's fault), I'd highly recommend it.
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Old 02-19-2007, 04:47 AM   #1983
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Quote:
Originally Posted by SupermaxxRich
hand tighten is all that needed bud. Haven't had one back off yet in 3 gallons of fuel
Hand tight is probably fine, but watch out if you try to do a quick ride-height adjustment by turning the preload collars on the shocks... you might unscrew the shock cap when you think you're turning the collars (happened to me once).

And instead of grabbing the caps with a pair of pliers, just run a small screwdriver or allen driver through the shock mount eyelet on the top of the cap to turn it. Losi put a hex shape at the bottom of the shock body, so you can grab there with a wrench while doing this.
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Old 02-19-2007, 04:53 AM   #1984
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losi8ight

i ran that engine last summer, i loved it. lots of torque. i ran an 053 on it and o99 plugs. if you are running on a big track it will run out of leg on the straight a little but as long as its not a 170' straight you will be fine. i am going to order another one for this summer.

1 thing thats i was told by jim hott. from fusion, take the "brass boost port plug" out of the block and jb weld it in so that you dont have it come out on you. thats how i lost my bf, lost the brass plug and sucked in dirt.
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Old 02-19-2007, 06:21 AM   #1985
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Default How tight should the piston be against the inner shock body wall?

My pistons seem to be very tight against the inside wall of the shock body. Is this normal? Should I sand them some? I suppose it will be smoother over time.
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Old 02-19-2007, 08:47 AM   #1986
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And instead of grabbing the caps with a pair of pliers, just run a small screwdriver or allen driver through the shock mount eyelet on the top of the cap to turn it. Losi put a hex shape at the bottom of the shock body, so you can grab there with a wrench while doing this.
The kit comes with two shock tools, one for the top as well so you don't have to scratch the shock cap. Its the other tool with the slot in it. Stick the shock mount in the slot and turn...no plyers needed.
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Old 02-19-2007, 09:20 AM   #1987
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Default SILICONE?

HELLO ALL, I HAVE A RTR AND I NOTICED I HAVE GREASE IN THE DIFF, SHOULD I PUT SILICONE? AND IF SO WHICH WEIGHT IN WHICH ONES?
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Old 02-19-2007, 09:21 AM   #1988
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Quote:
Originally Posted by R40Victim
The kit comes with two shock tools, one for the top as well so you don't have to scratch the shock cap. Its the other tool with the slot in it. Stick the shock mount in the slot and turn...no plyers needed.
+1. With my cap tightened down with the plastic tools there is no way the cap is coming undone when adjusting ride height!
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Old 02-19-2007, 09:22 AM   #1989
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Quote:
Originally Posted by JWRockman
My pistons seem to be very tight against the inside wall of the shock body. Is this normal? Should I sand them some? I suppose it will be smoother over time.
pistons shouldn't be tight at all in the shock body. Make sure there is no plastic hanging off the piston from the parts tree it was on.
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Old 02-19-2007, 09:42 AM   #1990
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The .21 BF is a great motor and mine really woke up when I changed from a dynamite to JP-2 pipe.
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Old 02-19-2007, 10:00 AM   #1991
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HELLO ALL, I HAVE A RTR AND I NOTICED I HAVE GREASE IN THE DIFF, SHOULD I PUT SILICONE? AND IF SO WHICH WEIGHT IN WHICH ONES?
Try the kit's diff lubes first, it's a good starting point. Also, make sure you stick to one brand of diff oil, so the comparitve viscocity is linear...translation, 1000 wt oil may be different from brand to brand(or so I'm told). Just get 5K for the front, 7k for the middle, and 2k for the rear. That'll be a good starting point.
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Old 02-19-2007, 10:09 AM   #1992
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Quote:
Originally Posted by R40Victim
Try the kit's diff lubes first, it's a good starting point. Also, make sure you stick to one brand of diff oil, so the comparitve viscocity is linear...translation, 1000 wt oil may be different from brand to brand(or so I'm told). Just get 5K for the front, 7k for the middle, and 2k for the rear. That'll be a good starting point.
Yes, I've been running Mugen oils and they seem to be slightly thicker than the Losi oil. Having said that we should be seeing Losi diff oils anytime now
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Old 02-19-2007, 11:46 AM   #1993
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Well the cars been out since Oct and still no diff fluids. I'll believe it when I see it.

Let's get it right.. Release the car AND it's supporting products OR at least tell us which other manufactures oils are the closest match. It's really a shot in the dark on which oils to use to get out of the box matching performance which we tuned the setups around in the first place.
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Old 02-19-2007, 12:23 PM   #1994
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Default Droop

J. Wright: Post # 1963 and #1965 (nice picture) on how to measure Droop. You will need a digital caliper to measure it. You are correct. 95mm in the front 106mm in the rear. Hope this helps.
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Old 02-19-2007, 12:33 PM   #1995
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Mugen, Kyosho and GS are all exact C.P.S. differential and shock oil. I would reccomend running one of these so you know your oils are exact.

I ran 5-6-2 this weekend and it felt great! The car was very positive and pulled of corners very well. I'm going to try 5-5-2 this weekend.
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