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HomeAircraftHelicopterEngines Plugs Mufflers Fuel › Standard YS91 Head into Viper like Head
11-20-2006 05:14 PM  11 years agoPost 21
Simon - R

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Hi Below Average, looks great are you going to be doing these if so how much ? would be interested in getting all mine done os 50,70,90
good safty feature i think anything that stops me crashing is a bonus simon

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11-20-2006 06:08 PM  11 years agoPost 22
Below Average

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PM sent

How was I to know she had a wooden leg

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11-20-2006 10:05 PM  11 years agoPost 23
Below Average

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The three plug head is born...I have no idea what this will do but watch this space (Photos to follow)

How was I to know she had a wooden leg

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11-20-2006 10:14 PM  11 years agoPost 24
Arky

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The three plug head is born...I have no idea what this will do but watch this space (Photos to follow)
Have u considered the fact that each plug you add your lowering the compresion of the engine ????

Jason

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11-20-2006 11:04 PM  11 years agoPost 25
Below Average

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"Have u considered the fact that each plug you add your lowering the compresion of the engine ????"

Yes you will lose slight compression, this is where the shims come into play

How was I to know she had a wooden leg

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11-20-2006 11:05 PM  11 years agoPost 26
Below Average

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please forgive me, i used a enya 3 in the centre

How was I to know she had a wooden leg

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11-20-2006 11:08 PM  11 years agoPost 27
Pinkbike

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..

www.kickstartphotography.com

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11-20-2006 11:26 PM  11 years agoPost 28
Arky

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Not knocking your work m8y very nice, just curious as i wonder if the viper head has been skimmed to compensate for the lower compression the extra plug would cause.

i would love this mod for the flame out factor, but i have the os91szh and i don't think the head would allow this without major butchery and i agree the viper head is over priced.

Jason

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11-20-2006 11:28 PM  11 years agoPost 29
Arky

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OK i want to see seven plugs in there

Wee.Splat

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11-20-2006 11:30 PM  11 years agoPost 30
Pinkbike

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www.kickstartphotography.com

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11-20-2006 11:48 PM  11 years agoPost 31
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don't tempt me...

How was I to know she had a wooden leg

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11-20-2006 11:54 PM  11 years agoPost 32
darkfa8

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Brick, NJ - USA

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As for sending engine components away for treatments such as plasma nitriding or hard chrome these will require additional machining before and after they have under gone the sub-contract process, so before you all start sending items to 'SwainTech or Polydyn' i'd suggest you don't
I said nothing about plasma nitriding or hard chrome. What I did say was about thermal barrier and friction reducing coatings. These coatings do nothing to make the parts physically stronger. What they do respectively is increase the parts efficiency to deal with heat and reduce frictional losses.

- Dan Goldstein
Team Revolectrix

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11-21-2006 12:12 AM  11 years agoPost 33
colsy

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Cambridge, UK

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Hi, Below Average.

Can you send me a PM, 'please'

Thanks.

Colin..

Only Quote From Experience.

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11-21-2006 12:13 AM  11 years agoPost 34
Below Average

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If you send components out for surface treatments invariably the surface will grow in size making an outside diameter eg a piston larger, and a bore eg barrel smaller, this is where the extra machining is needed, either to make the components larger or smaller to start with, or (wake up you at the back) if the treatment is surface penetrating you could get away with honing or internal grinding out to size on a barrel (ID) and on a diameter (OD) you could external grind.
Ps I can do both

How was I to know she had a wooden leg

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11-21-2006 12:39 AM  11 years agoPost 35
sluggo

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Kitchener Ont

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Below Average
What shim are you going to use with the 3 plug head?

Chris

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11-21-2006 01:23 AM  11 years agoPost 36
Arky

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i think no shim

Wee.Splat

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11-21-2006 01:23 AM  11 years agoPost 37
colsy

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3 plugs in a cylinder head is taking the piss, defo.

I mean redundant redundancy or what,,!!

Colin..

Only Quote From Experience.

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11-21-2006 10:36 AM  11 years agoPost 38
Below Average

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The shim issue is another thing i'm going to do trials, i'll start with 0.007" and work down

How was I to know she had a wooden leg

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11-21-2006 11:59 AM  11 years agoPost 39
darkfa8

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Brick, NJ - USA

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Polymer coatings were originally developed for NASA space exploration programs. Over the years, coatings have been successfully used in a variety of commercial and industrial applications. Polymer Dynamics Inc. developed and continues to develop PolyDyn Performance Coatings, the finest performance engine coatings and applications on the market for automotive and racing engine components.

With 16+ years experience and testing, Polymer Dynamics Inc. has advanced the coating application for more racing engine components. Our customers are the biggest names in stock car and drag racing, the NHRA, NASCAR, Winston Cup, SCCA, CART, IRL, World Of Outlaws, and IROC.

Polydyn Performance Coatings are proven in actual competition on the race track and is unmatched by any other performance engine coating.

Polydyn Performance Engine Coatings are applied so that a .0002" to .0007" overbuild remained on the surface, but there's a lot more to these coatings than meet the eye. PolyDyn fluoropolymers actually become a part of the coated materials surface; .005" t 0.50" actual penetration depending on the material. While some overbuild can be removed, it is virtually impossible to extract a polymer from the pores of the metal to which it is applied. Consequently, PolyDyn coatings will last almost indefinitely.
Few parts have to be clearanced in order to receive coatings.

- Dan Goldstein
Team Revolectrix

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11-21-2006 12:38 PM  11 years agoPost 40
Below Average

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You see i do know what i'm talking about. Cheers

How was I to know she had a wooden leg

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