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Author Topic: New WS7 lll
sixshooter_45
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I just purchased a RB WS7 III with a 2045 pipe and hope it comes with the 98mm manifold for more bottom end torque.

I have a mint OFNA 9.5 Hyper Pro, I know it's old but it's all hopped up with many optional parts.

This is the one with the standard plug and I plan on running 20 to 25% Byrons Gen II fuel.

This has been modified by Jim Hottinger of Fusion Motorsports and I think I'll run a 13t/50t gear set-up.

Do you think a 14t/50t might be a better set-up?

I'm going to take my time and break it in nice and easy about 200° for the first several tanks
and then gradually tune.

Is using a hair dryer absolutely necessary?

I can't wait this puppy ought to scream! [Big Grin]

Posts: 5 | From: Arnold | Registered: Jul 2008  |  IP: Logged
RB Products - Rody
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If your engine has been modified by a third party then it is very hard for us to tell you what the engine will do, you have to ask concerned person who modified your engine.

No need to absolutely use a hairdryer but it makes the engine easier to start when you pre-heat especially in the first 2-3 tanks, after that you can do without.

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Posts: 5328 | From: Allevard, FRANCE | Registered: Jul 2002  |  IP: Logged
sixshooter_45
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Thanks Rody, I'll initially tune it at home for the first 3 tanks so I can use a hair dryer.

Jim Hottinger of Fusion Motorsports is the guy who use to modify engines for Ron Paris.

He supposedly tunes them for a more power while trying to retain the reliability and tuneability of the engine.

I live in Missouri where temps vary from 60° to 100° and from very high to low humidity during the summer months.

Which RB plug would you suggest with Byrons 25% Pro fuel with 9% oil content?

I am leaning towards the RB Concept Medium Glowplug #6,(RBC01056-6) plug.
Also, I don't think I need to add a shim for the 25% fuel correct?

Thanks! [Smile]

[ 26. August 2008, 04:35: Message edited by: sixshooter_45 ]

Posts: 5 | From: Arnold | Registered: Jul 2008  |  IP: Logged
RB Products - Rody
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Yes, the 01056-6 is the glowplug we use mainly on this type of engine in combination with 25% nitro, so no need to change the headclearance.

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Posts: 5328 | From: Allevard, FRANCE | Registered: Jul 2002  |  IP: Logged
sixshooter_45
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Well I used a hair dryer for the first 4 tanks and kept the engine temps around 175° to 200° which wasn't easy with Byrons 2nd gen. fuel.

It idles so nice and have ran one tank through it on the ground, tomorrow I'll run about 6 more tanks through it, taking it easy on the rpm.

I did notice that somehow one of my springs that holds on the manifold at the rear exhaust came off and I know it was on good cause I always double check all adjustments, installations, etc.

I have extra springs but they were a little smaller from my old RB C5.

Rody, where could I get some extra heavy springs like the ones that came with my WS7?

If you could point me in the right direction I'd like to purchase four of them, I'll also check with my LHS.

Is the number for the larger diameter sized springs RB01322 ?

Great engine so far and I can't wait till tomorrow. [Big Grin]

[ 07. September 2008, 06:17: Message edited by: sixshooter_45 ]

Posts: 5 | From: Arnold | Registered: Jul 2008  |  IP: Logged
RB Products - Rody
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I suggest you check with your LHS first and if they cannot get it for you you could always try with an on-line shop like A-Main for example.

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Posts: 5328 | From: Allevard, FRANCE | Registered: Jul 2002  |  IP: Logged
sixshooter_45
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I did already and they're on order, sorry to bother you, I know you're busy person.

Started my second attempt at breaking in my new engine and after the first half tank my old analog Futaba S9303 servo stripped.

I just purchased a Z9100S Ultra high speed JR with 180 .oz/.in of torque and .06 sec/60° at 6 volts.

I already have it installed up front for steering and moved my KO PROPO digital servo 8.0 kg.-cm, (111 .oz/.in)
and .08 sec/60° at 6 volts to my throttle and brake position.

After all that I took the plastic gear out of a good Futaba S3003 and installed it in the S9303 and it works fine now, but I still wanted to move up to the digital one, so..... I did!

Life is good, finally, LOL [Cool]

[ 10. September 2008, 02:22: Message edited by: sixshooter_45 ]

Posts: 5 | From: Arnold | Registered: Jul 2008  |  IP: Logged
RB Products - Rody
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Concerning the servo's, try an use the most relaiable one's above the most fast one's, this is all I can suggest. A fast servo on the throttle can sometimes only cause a low rpm bog due to the too fast opening of the throttle.

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Posts: 5328 | From: Allevard, FRANCE | Registered: Jul 2002  |  IP: Logged
sixshooter_45
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Ok, it appears on my Futaba 3PDF I can adjust the sensitivity using the exponential settings on the throttle as well as the steering.

Rody, thanks for the bog tip on the servo being to fast on the throttle, I really appreciate that one as I'm still breaking it in, the exponential is set @ zero now, I can go from -100 to +100.

The manual states that the + side will make the servo reaction more sensitive while the negative side will make the servo reaction less sensitive.

So, perhaps the exponential is just the reaction time of the servo from the signal being received from the transmitter and not really the speed of the servo travel, although it appears to move slower or faster in its travel.

[ 11. September 2008, 02:01: Message edited by: sixshooter_45 ]

Posts: 5 | From: Arnold | Registered: Jul 2008  |  IP: Logged
   

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