[DeTomaso] NGK Plugs

asajay at asajay.com asajay at asajay.com
Tue Aug 7 19:15:16 EDT 2007


Hey Thomas,
Since you have the decoder handy, what is a UR4, in NGK?  I believe  
that's what I've been running, though I can't recall for sure anymore.

Asa Jay

Quoting Thomas Tornblom <Thomas.Tornblom at hax.se>:

> Will Demelo skrev:
>> I've been using NGK-R plugs as recommended bt the engine builder.   
>> NGK #BKR6E. I get these from the very high priced hi-performance   
>> store in another town. I recently went to the local parts store and  
>>  they had them in stock, but with the #11 below the BKR6E. What is   
>> the 11 for? Heat range? What is the heat range without a number?
>
> What heads do you have?
>
> When I decode the number it isn't a taper seat plug.
>
> With my iron heads I have been using BPR5FS, BPR6FS and BP7FS, all of
> which are taper seat.
>
> Decoding "BKR6E-11":
>
> BK -> 14 mm thread, 16 mm socket
> R -> resistor
> 6 -> heat range, higher number is colder
> E -> 19.0 mm thread length
> -11 -> 1.1 mm electrode gap
>
>
> Decoding "BPR6FS":
>
> B -> 14 mm thread, 20.8 mm socket
> P -> protruding insulator
> R -> resistor
> 6 -> heat range
> F -> 11.2 mm taper seat thread length
> S -> CU center electrode
>
>
>> Will
>
> Cheers,
> Thomas
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