Log in
Search
Latest topics
» Happy Anzac Day!by GallopingGhostler Today at 12:44 pm
» Fox .35 Modifications
by GallopingGhostler Today at 12:37 pm
» Revivng Some Childhood Classics
by rsv1cox Today at 7:17 am
» Introducing our Cox .049 TD Engines
by getback Today at 6:20 am
» Project Cox .049 r/c & Citabrian Champion
by getback Today at 6:17 am
» Roddie's flat-bottomed boat..
by Levent Suberk Today at 12:23 am
» Cox powered jet-pump for model Sprint Boat
by roddie Yesterday at 10:25 pm
» Micro Draco Gets to Fly on a Beautiful Morning.
by rdw777 Yesterday at 8:15 pm
» Jim Walker Firebaby
by rdw777 Yesterday at 8:06 pm
» Hydro-bat by Vic Smeed: engine probs
by GallopingGhostler Yesterday at 5:12 pm
» Roddie-Rigger.. a 2005 original design
by roddie Yesterday at 3:39 pm
» [solved]most Efficent Glowhead Clip for Norvel Engine
by batjac Wed Apr 24, 2024 10:33 pm
Cox Engine of The Month
.15 Cox Special
Page 2 of 2
Page 2 of 2 • 1, 2
Re: .15 Cox Special
That's a TD .15 MKII Special, as indicated by the single-side exhaust port and gold case. The TD .15 Special(sometimes referred to as a TD .15 MKI Special) is different. It looks mostly like the original TD .15 with the exception of the wristpin piston connection instead of the ball/socket which came on the original. There were incremental improvements made between each version. Nice score!
Tee Bee- Platinum Member
- Posts : 763
Join date : 2011-08-25
Location : Angleton, TX
Re: .15 Cox Special
Tico you have a Medallion crank shaft for whatever reason.
It is possible the previous owner wanted to reduce fuel draw
at the expense of a bit of power.
You would have to post a pic and expose the piston which maybe a
Medallion piston. It could have it's roots tied to a Medallion that was
upgraded. It is possible the engine was built from MK II parts. There
was a time replacement parts could be bought.
It is possible the previous owner wanted to reduce fuel draw
at the expense of a bit of power.
You would have to post a pic and expose the piston which maybe a
Medallion piston. It could have it's roots tied to a Medallion that was
upgraded. It is possible the engine was built from MK II parts. There
was a time replacement parts could be bought.
1/2A Nut- Top Poster
- Posts : 3426
Join date : 2013-10-20
Age : 60
Location : Brad in Texas
Re: .15 Cox Special
Thanks for info Nut. So do all Tee Dee .15 versions use identical crankshafts?
ticomareado- Account Under Review
- Posts : 1089
Join date : 2013-10-03
Location : NC
Re: .15 Cox Special
Yes I believe so, I have two 2nd gen TD .15's and the MK II
I upgraded them with aluminum carb bodies and all three have
square windows on the cranks.
Also have 2 medallions one was upgraded with a aluminum carb body
and TD NV assembly both had round windows on the cranks.
I upgraded them with aluminum carb bodies and all three have
square windows on the cranks.
Also have 2 medallions one was upgraded with a aluminum carb body
and TD NV assembly both had round windows on the cranks.
1/2A Nut- Top Poster
- Posts : 3426
Join date : 2013-10-20
Age : 60
Location : Brad in Texas
Re: .15 Cox Special
Have you cross checked any for intake timing?
ticomareado- Account Under Review
- Posts : 1089
Join date : 2013-10-03
Location : NC
Re: .15 Cox Special
No not yet,
I would like to use a good sealing / breathing header manifold on one.
If that happens I will put a timing wheel on expect 140- 145 exhaust timing.
Thus far ran 3 out of the 5 thus far they are beasts compared to the .09's
If you wish you can compare yours with a APC 7x5 to the following results. Ran as shown.
APC 7x5 /18,330 rpm / 37oz - 2.33 lbs thrust / .532 hp - 397w / 87mph prop pitch speed.
I would like to use a good sealing / breathing header manifold on one.
If that happens I will put a timing wheel on expect 140- 145 exhaust timing.
Thus far ran 3 out of the 5 thus far they are beasts compared to the .09's
If you wish you can compare yours with a APC 7x5 to the following results. Ran as shown.
APC 7x5 /18,330 rpm / 37oz - 2.33 lbs thrust / .532 hp - 397w / 87mph prop pitch speed.
1/2A Nut- Top Poster
- Posts : 3426
Join date : 2013-10-20
Age : 60
Location : Brad in Texas
Page 2 of 2 • 1, 2
Similar topics
» My "38 Special"
» new 2.0 rc 1/16 049 powered bugy upgrade tee dee
» Cox "Special .15" TD
» Cox .15 Tee Dee Special Mk I
» Cox Collection for Sale I - Many items, bids in tread please
» new 2.0 rc 1/16 049 powered bugy upgrade tee dee
» Cox "Special .15" TD
» Cox .15 Tee Dee Special Mk I
» Cox Collection for Sale I - Many items, bids in tread please
Page 2 of 2
Permissions in this forum:
You cannot reply to topics in this forum