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Old Jan 28, 2013, 05:08 PM
Go ARMY! Beat Navy.
Dave Craig's Avatar
United States, NC, Southern Pines
Joined Dec 2012
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Question
Open Question about Cox Tee Dee engines

Can anyone tell me if the Cox Tee Dee .049 or .051 was ever sold with a standard compression glowhead instead of the high compression head #1702?
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Old Jan 28, 2013, 05:17 PM
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I have seen enough NIP Cox things where the same kind of package would hold different versions. I wouldn't be surprised at anything you might find assembled together at the factory.
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Old Jan 28, 2013, 05:33 PM
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North Texas
Joined Nov 2002
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Is there knurling on the top of the head? If so, it might be a high compression three-fin racing head.

http://www.coxengineforum.com/t2324p...-cox-extra-300

http://en.wikipedia.org/wiki/Cox_model_engine
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Old Jan 28, 2013, 06:10 PM
Go ARMY! Beat Navy.
Dave Craig's Avatar
United States, NC, Southern Pines
Joined Dec 2012
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Thanks guys. I've owned a bunch of these things since the late 70's and all of mine have always had the high compression head with the knurling on it. I bought one recently from.......uhhhhh that site......it was use and advertised as such but it had a standard head. The seller claims that not all TD's were sold with high compression heads and my recolection is different so I thought I'd ask if anyone had knowledge one way or the other. No big deal just asking around, thanks again
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Old Jan 28, 2013, 10:04 PM
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Canada
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It's Feabay You honestly expected integrity ??
Small factoid to ease your chagrin :-)
TD's on 30% nitro run easier with a Lo Comp head, giving up only a few rpms while gaining far easier/wider range needling
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Old Jan 29, 2013, 09:04 AM
Go ARMY! Beat Navy.
Dave Craig's Avatar
United States, NC, Southern Pines
Joined Dec 2012
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Thanks Bare,
I'll give that a try.
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Old Jan 29, 2013, 11:47 AM
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You should also add head shims when using high nitro levels and the high compression head...
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Old Jan 29, 2013, 02:41 PM
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United States, SC, Columbia
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Quote:
Originally Posted by Jim Thomerson View Post
I have seen enough NIP Cox things where the same kind of package would hold different versions. I wouldn't be surprised at anything you might find assembled together at the factory.
Especially true after Estes took over selling Cox engines. They were known to randomly mix and match on occasion.
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