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Cox Engine of The Month
July-2024
robot797's
![](https://i.servimg.com/u/f95/15/46/86/41/3_robo10.jpg)
"ULTIMITE COX 010: it has a clutch, E starter, throttle, exhaust, aluminum tank, aluminum venturi, gearbox with forward and reverse, and now its on a custom drawn and printed stand"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
robot797's
![](https://i.servimg.com/u/f95/15/46/86/41/3_robo10.jpg)
"ULTIMITE COX 010: it has a clutch, E starter, throttle, exhaust, aluminum tank, aluminum venturi, gearbox with forward and reverse, and now its on a custom drawn and printed stand"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (June 2019)
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Choose the next engine of the month!
Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (June 2019)
Hello i think we have a wienner
![Small Cox Logo](/users/3015/29/34/60/smiles/7356.png)
![Babe Bee .049](/users/3015/29/34/60/smiles/976416.png)
![Small Cox Logo](/users/3015/29/34/60/smiles/7356.png)
getback- Top Poster
Posts : 10276
Join date : 2013-01-18
Age : 66
Location : julian , NC
robot797- Platinum Member
- Posts : 765
Join date : 2013-07-28
Age : 33
Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (June 2019)
robot797 wrote:yay my firsth win
Congratulations, that is quite the engine and deserves an award!
Marleysky- Top Poster
Posts : 3618
Join date : 2014-09-28
Age : 71
Location : Grand Rapids, MI
Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (June 2019)
Congrats robot797, well deserved.
You owe us a video about how that engine runs!![Very Happy](https://2img.net/i/fa/i/smiles/icon_biggrin.png)
You owe us a video about how that engine runs!
![Very Happy](https://2img.net/i/fa/i/smiles/icon_biggrin.png)
balogh- Top Poster
Posts : 4803
Join date : 2011-11-06
Age : 65
Location : Budapest Hungary
robot797- Platinum Member
- Posts : 765
Join date : 2013-07-28
Age : 33
Kim- Top Poster
Posts : 8590
Join date : 2011-09-06
Location : South East Missouri
Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (June 2019)
That's Too Cool.....Congratsrobot797 wrote:
here you go
akjgardner- Diamond Member
Posts : 1527
Join date : 2014-12-28
Age : 64
Location : Greensberg Indiana
Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (June 2019)
Great video Robot. What % oil did you have in the fuel? Apart from the natural cooling of the large heat sink mounted on the engine head, did you use some firced ventilation too? That engine must have run very hot.
balogh- Top Poster
Posts : 4803
Join date : 2011-11-06
Age : 65
Location : Budapest Hungary
Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (June 2019)
i beleve i used 20 or 25% oil
half syntetic half castor
and it ran only a few degrees above nitro temp
and what amazed me most is that it hardly used fuel
(what did i expect with the needle only 0.5-0.75 turns opened)
half syntetic half castor
and it ran only a few degrees above nitro temp
and what amazed me most is that it hardly used fuel
(what did i expect with the needle only 0.5-0.75 turns opened)
robot797- Platinum Member
- Posts : 765
Join date : 2013-07-28
Age : 33
Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (June 2019)
Thanks. Yes the calorific value of gasoline (43MJ/kg) is more than twice that of the methanol (19.9MJ/kg) so the fuel-air mixture is much leaner and fuel consumption is much less with gasoline.
balogh- Top Poster
Posts : 4803
Join date : 2011-11-06
Age : 65
Location : Budapest Hungary
MauricioB- Top Poster
- Posts : 3649
Join date : 2016-02-16
Age : 53
Location : ARG
Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (June 2019)
thank you all for voting on me
also be prepaired to see more of this
I am building a gasoline boat with it
also be prepaired to see more of this
I am building a gasoline boat with it
robot797- Platinum Member
- Posts : 765
Join date : 2013-07-28
Age : 33
Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (June 2019)
Fun stuff way to go Robot congratulations! ![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
Post a vid of the boat running we would like to see that!
![Beer Cheers](/users/3015/29/34/60/smiles/1848667513.gif)
Here is a .05 engine powering my 1/2A outrigger hydro design.
Published on Oct 9, 2016
1st Run - Picco P-Zero Outrigger Hydro Profi Tuned Pipe
.85cc / .050 cu. in. / 1/2A car engine converted for boat use.
Very stable, needle valve set a bit rich for the first few
runs, need to lower the strut a bit, tracks very well.
Will do another vid after I tweak the setup.
Stock X427 / 20% castor 30% Nitro. Per Doppler
reading best pass 62.25 Kph or 38.68 mph pitch speed / 27,290 rpm
Looked like around 35 after trimming it out.
![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
Post a vid of the boat running we would like to see that!
![Beer Cheers](/users/3015/29/34/60/smiles/1848667513.gif)
Here is a .05 engine powering my 1/2A outrigger hydro design.
![Old Bugger](/users/3015/29/34/60/smiles/2238803017.gif)
Published on Oct 9, 2016
1st Run - Picco P-Zero Outrigger Hydro Profi Tuned Pipe
.85cc / .050 cu. in. / 1/2A car engine converted for boat use.
Very stable, needle valve set a bit rich for the first few
runs, need to lower the strut a bit, tracks very well.
Will do another vid after I tweak the setup.
Stock X427 / 20% castor 30% Nitro. Per Doppler
reading best pass 62.25 Kph or 38.68 mph pitch speed / 27,290 rpm
Looked like around 35 after trimming it out.
![Popcorn](/users/3015/29/34/60/smiles/1347041234.gif)
![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
Last edited by 1/2A Nut on Mon Jun 10, 2019 4:40 am; edited 1 time in total
1/2A Nut- Top Poster
- Posts : 3464
Join date : 2013-10-20
Age : 60
Location : Brad in Texas
Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (June 2019)
Well done Robot.
As stated earlier a most deserving win.
As stated earlier a most deserving win.
![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
Davenz13- Platinum Member
- Posts : 596
Join date : 2013-11-28
Age : 68
Location : Palmerston North, New Zealand
Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (June 2019)
Good Job Robot , heck i still havent won one
but that's OK having fun is all its about
CONGRATULATIONS !!
![Sad](https://2img.net/i/fa/i/smiles/icon_sad.gif)
![Very Happy](https://2img.net/i/fa/i/smiles/icon_biggrin.png)
![cheers](https://2img.net/i/fa/i/smiles/icon_cheers.png)
![cheers](https://2img.net/i/fa/i/smiles/icon_cheers.png)
![cheers](https://2img.net/i/fa/i/smiles/icon_cheers.png)
getback- Top Poster
Posts : 10276
Join date : 2013-01-18
Age : 66
Location : julian , NC
Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (June 2019)
Congrats Robot797! Very interesting project!
Tee Bee- Platinum Member
- Posts : 763
Join date : 2011-08-25
Location : Angleton, TX
![-](https://2img.net/i/empty.gif)
» **Black Lynx Engine Giveaway June 2019** Cox Engine of the Month
» *Cox Engine of The Month* Submit your pictures! -June 2019- #ENGINE GIVEAWAY#
» **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (May 2019)
» **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** -ENGINE GIVEAWAY- (June 2018)
» **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (November 2019)
» *Cox Engine of The Month* Submit your pictures! -June 2019- #ENGINE GIVEAWAY#
» **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (May 2019)
» **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** -ENGINE GIVEAWAY- (June 2018)
» **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (November 2019)
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