[DML] Re: spark plugs/brake fluid 3 vs. 4

["Harold McElraft" <hmcelraft@xxxxxxx>]

Well, the chart I looked at went from 2 to 12. However, I can't tell if 
all are automotive applications and I didn't look at the date. 6 may be 
the coldest Bosch for autos - I'm sure you have the current automotive 
chart.

My point was intended to emphasize that straying from OEM specs is not 
wise - especially for operating temp of spark plugs which has nothing 
to do with the amount of spark. Operating temp as you point out is 
primarily about keeping the plug clean without damage to the plug or 
the engine. The HR6 has done an excellent job. The B28F (or versions 
thereof) had a zillion miles on it before it was stuck in the DeLorean -
 I have never read about spark plug operating temps being an issue. 

I guess if you modify a DeLorean engine much you will have to go to a 
manufacturer other than Bosch when you need a plug with a cooler 
operating temp.

As far Nology goes, I was interested in the whole Nology technology 
that Stephen Wynne had Nology develop for the DeLorean.  Controlled 
spark intensity at the higher RPMs appears to work - and it is more 
than just wires. I have noticed a BIG difference. 

Maybe I can get some times at the drag strip during the DMA fall 
foliage tour and we can compare to a stock DMC automatic or someone who 
has your set up. I haven't seen what your setup can do yet.

Harold McElraft - 3354



--- In dmcnews@xxxxxxxxxxxxxxx, "John Hervey" <john@...> wrote:
>
> Harold, I hate to disagree with you but the HR6 no matter what tip is 
a the
> coldest plug in the series from the 6 being the coldest to the 
7,8,9,and 10
> being the hottest. The HR 6 is a highway and the 8 is a good hop to 
>




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