Spark plug heat range - Team Camaro Tech
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post #1 of 4 (permalink) Old Apr 22nd, 04, 11:52 AM Thread Starter
 
Join Date: Nov 2001
Posts: 257
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Hi guys im looking for a hotter plug for my 350.

The delco plug is a R44T. Are the rapid fires any hotter??? Im thinking about a #2 rapid fire or a #7.

I just need a hotter plug.
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post #2 of 4 (permalink) Old Apr 22nd, 04, 01:59 PM
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Steven
 
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Location: Raleigh, NC
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you need to tell a little bit about your combo and ignition system ...Describe the problem or symptom that you think the hotter plug will resolve ... A R45TS is good ... You also have to consider the gap such as points ( .035 ) vs electronic ( .045 ) ... Also, check condition of dist cap and rotor .... BTW, the gaps I mention are standard and certainly may vary based upon your engine specs ...
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post #3 of 4 (permalink) Old Apr 22nd, 04, 05:47 PM Thread Starter
 
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I have a plug that fowls out do to valve guides. I mean the stock 1973 350 only has 220,000 miles.
The #8 plug has a tendency to fowl in cold weather so Im thinking of just putting a hotter plug in. Its stock points, stock everything. Runs fine but plug fowls out in -20 - 20 degrees.

What are the draw backs of a hotter plug?
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post #4 of 4 (permalink) Old Apr 23rd, 04, 07:48 AM
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Steven
 
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Location: Raleigh, NC
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BTW, are you planning on just running the hotter plug in the fouling cylinder only, or, going hotter all the way around? Hotter plugs may induce more pinging/detonation. Check bolts on intake , particularly near cyl 8. If intake in loose, oil may get into cyl that way ... And, autolite #26 is another choice you can look at...
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