[Fot] What are some good spark plugs for a TR6

[Bill Babcock]

No reason to ask those guys, they wouldn't really know anyway. NGK is  
the plug any good motorcycle mechanic needed to know backwards and  
forwards.

The next half step colder than BP6ES would be BP6EC, a full step  
colder is BP7ES. NGKs get colder the higher the number goes. E means  
3/4 inch reach, H is half inch. B is the 14 MM (13/16) plug while D is  
the 12 MM (5/8). S is the hot end of the number range, C is the cold  
end.

We always considered the C plug to be more of a racing plug, the  
design is different as well as being colder than the S.

If you want the fine wire gold palladium version it's V, and it's the  
same heat range as the C plugs, so you'd want a BP6EV. Or you might go  
for the iridium center electrode which is I. P, by the way, means  
extended plug. I like the standard plugs a little better for most  
applications, so I'd go for a B6EC if I could find one. A lot of the  
plugs are not generally available, but motorcycle shops tend to have  
more access than parts stores.

There are a lot more codes, NGK makes more specialized plugs than most  
manufacturers do (except Bosch). Their gold palladium plugs tend to be  
really good, you might want to try to find B6EV or BP6EV.

Useless information cluttering up my head, like the decay chain for  
Uranium 238 (Thorium 234, Protactinium 234, Uranium 234, Thorium 230,  
Radium 226. Radon 222, Polonium 218, Lead 214, Bismuth 214, Polonium  
214, Lead 210, Bismuth 210, Polonium 210, lead 205). But I have no  
idea where I put my keys.

On Jul 7, 2008, at 8:53 PM, RACER BUD wrote:

> ..Hi Jim bp6es is the plug that was  recomended for the TR6...Stock
> Engine.....if you want to run better at high rpms..go to a colder
> plug.....ask the guy at the parts store what the next step up  is..
> Racer Bud
>
> ----- Original Message -----
> From: "jim hearn" <jimhearn1 at comcast.net>
> To: <fot at autox.team.net>
> Sent: Monday, July 07, 2008 8:19 PM
> Subject: [Fot] What are some good spark plugs for a TR6
>
>
>> What make and model spark plugs are you guys getting good  
>> performance from
>> in TR6s.  My TR6 is a 74 with a little hotter cam but not high  
>> compression
>> and I am using NGK (BP6ES).  Just wondered if someone is having great
>> success with something else and also whether or not the enhanced  
>> plugs
>> (Iridiums, platinums, etc) are worth the extra money.
>>
>> [demime 1.01d removed an attachment of type application/ms-tnef  
>> which had
>> a name of winmail.dat]
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Bill Babcock
Babcock & Jenkins
Billb at bnj.com
503.936.7660
www.bnj.com