Chevron Lubricants Q&A

click here to participate in the Chevron Lubricants Q&A

Recent Topics
WHAT ABOUT
by Baseball17
04/21/15 01:46 AM
Can an overheating engine REALLY cause a fire?
by Avery4
04/20/15 10:55 PM
Oil recommendation for Chevy LS7 454 crate engine?
by 340_Magnum
04/20/15 10:44 PM
"High Age" oil
by otis24
04/20/15 10:12 PM
Mobil1 AFE 0w20 in 2014 Mazda3
by adamgirard
04/20/15 09:38 PM
M1 0w-40 in a Saturn SL1
by faramir9
04/20/15 09:21 PM
Big Lots Peak oil BOGO $3.80
by SpeedyG75VW
04/20/15 08:50 PM
Anyone still using uniroyal tires?
by 11crv
04/20/15 08:21 PM
Different gauge clusters on 1984 Caprice
by RyanCreasia
04/20/15 08:14 PM
Desired shift points (with videos)
by sam369
04/20/15 08:05 PM
1996 I30 brake light problem even with new bulbs
by slacktide_bitog
04/20/15 07:43 PM
Anyone know how Castrol 0w-30/40 compares to
by jdavis
04/20/15 07:30 PM
Newest Members
Evie2015, Jimdraper, adamgirard, Overpowered, Msalem
53663 Registered Users
Who's Online
24 registered (Flywest, c502cid, 901Memphis, chrisri, Dyusik, 3 invisible), 543 Guests and 208 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
53663 Members
66 Forums
230081 Topics
3682031 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3127394 - 09/17/13 10:00 AM DIY Jet Engines....Anyone?
Phishin Offline


Registered: 05/01/12
Posts: 1641
Loc: Indiana
Not sure where to put this....

I went to a recent inventor/science/maker fair recently.

One thing that caught my attention was the amateur jet engine guys. They had both pulse-jet engines and turbine jet engines made from turbo chargers. Boy, they looked cool. Louder than heck. Very cool though.

Definately got my attention. Might be something that I try building for fun. Most of the engines were on stands for demonstration purposes only. But they did have an engine mounted to a bicycle, to a small pocket bike, and a go-kart.

If I fabricated one of these engines, I'd want it functional....put some wheels under it.

Anyone on here ever tinker with these designs?


Edited by Phishin (09/17/13 10:02 AM)
_________________________
2010 Accord-LX K24: PU 5w30
2009 Subaru Forester 2.5X: Castrol 0w30
1990 Chevy K1500 350TBI: Frankenbrew
2008 Ruckus 50ccGET: M1R Mix

Top
#3127404 - 09/17/13 10:16 AM Re: DIY Jet Engines....Anyone? [Re: Phishin]
Cardenio327 Offline


Registered: 11/30/09
Posts: 616
Loc: Oaxaca, Mexico
My uncle built a ramjet in the early 1960s and fastened it to the roof of an early 1950s Plymouth.

The story varies according to who tells it. My uncle claimed it worked and the car went [fill in the blanks insane extraordinary] mph.

My Dad says the car's flathead six didn't have enough power to get the ramjet up to ignition speed. Flames just shot out of the back of it, but it never ignited.
_________________________
'08 Honda C90ST Super Cub 5w-50 M1EP
'08 Honda NX4 Falcon 5w-40 Delo 400LE
'09 Honda Fit LX 10w-30 QSUD
'99 F-150 W/T 4.2L 10w-30 QSUD

Top
#3127459 - 09/17/13 11:09 AM Re: DIY Jet Engines....Anyone? [Re: Phishin]
joaks Offline


Registered: 12/28/10
Posts: 757
Loc: San Diego, CA
You can make a pulse jet from an aerosol can, feeler gauge and fence pipe.

I'm impressed with anything more complex as a DIY.

A ramjet needs to be going fast to work. I would be surprised if they worked at race car speeds even.
_________________________
1997 Subaru Legacy 2.2 EJ

Top
#3127466 - 09/17/13 11:16 AM Re: DIY Jet Engines....Anyone? [Re: Phishin]
Kestas Offline



Registered: 06/04/02
Posts: 11016
Loc: The Motor City
A group of engineers in Ann Arbor some thirty years ago worked on turbine engines to bring them to more ordinary commercial applications. My old boss was involved in that program. He mentioned that they powered a prototype riding mower with a turbine engine.

Top
#3127506 - 09/17/13 12:00 PM Re: DIY Jet Engines....Anyone? [Re: Cardenio327]
A_Harman Offline


Registered: 10/01/10
Posts: 4873
Loc: Michigan
Originally Posted By: Cardenio327
My uncle built a ramjet in the early 1960s and fastened it to the roof of an early 1950s Plymouth.

The story varies according to who tells it. My uncle claimed it worked and the car went [fill in the blanks insane extraordinary] mph.

My Dad says the car's flathead six didn't have enough power to get the ramjet up to ignition speed. Flames just shot out of the back of it, but it never ignited.


Unless that old flathead six could get the car up to 700+ mph, the ramjet would never produce thrust. A ramjet has to be going at sonic velocities to get a shock wave to form in its inlet, causing compression of the incoming air. Otherwise, he just had a fancy blowtorch.
_________________________
1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck

Top
#3127513 - 09/17/13 12:09 PM Re: DIY Jet Engines....Anyone? [Re: Phishin]
mercuryblues Offline


Registered: 01/06/10
Posts: 379
Loc: Southern NH, Boston MA region
Speaking of jet-powered vehicles....... grin2



_________________________
2001 Mercury Grand Marquis LS, Chevron Havoline Synthetic 5w20 & PureOne oil filter.
Shell (or sometimes Sunoco) 87 octane

Top
#3127519 - 09/17/13 12:13 PM Re: DIY Jet Engines....Anyone? [Re: Phishin]
brandini Offline


Registered: 10/08/09
Posts: 1125
Loc: Richmond, VA
Pulsejets are way cool, and don't require the speed jump-start.
_________________________
07 Mazda3s Hatch - ZoomZoom - Using EAO-ALM-BF3-MTG-ANT-ATF

Top
#3127528 - 09/17/13 12:22 PM Re: DIY Jet Engines....Anyone? [Re: Phishin]
Roadkingnc Offline


Registered: 07/16/11
Posts: 652
Loc: NC USA
Chrysler made a turbine car

Top
#3127543 - 09/17/13 12:41 PM Re: DIY Jet Engines....Anyone? [Re: Kestas]
djb Offline


Registered: 01/16/06
Posts: 517
Loc: Maryland
Originally Posted By: Kestas
A group of engineers in Ann Arbor some thirty years ago worked on turbine engines to bring them to more ordinary commercial applications. My old boss was involved in that program. He mentioned that they powered a prototype riding mower with a turbine engine.


30 years ago? Bump that up. There was a bunch of work in the 1950s and 1960s, but the failure was a settled issue by 1970s. The no-load fuel consumption is just too high for applications where partial-throttle efficiency matters more than peak power to weight ration.

A lawn mower comes closer to the profile than a car, but still a has a broad range of power needs.

Top
#3127592 - 09/17/13 01:55 PM Re: DIY Jet Engines....Anyone? [Re: Phishin]
itguy08 Offline


Registered: 09/15/11
Posts: 1828
Loc: Central PA
Which makes me wonder - a hybrid with a turbine would be a great idea. You could put a large battery in it, and have the turbine turn on and off as needed. Sort of like the Volt but with a turbine.
_________________________
Mine:
2010 Taurus SHO, 86k, dealer oil and filter
2011 F150 SuperCrew, 56k, Penzoil Platinum, Fram Ultra

Hers:
2003 Escape, 155k, QS Defy

Top
#3127618 - 09/17/13 02:15 PM Re: DIY Jet Engines....Anyone? [Re: Phishin]
shDK Offline


Registered: 04/03/13
Posts: 579
Loc: Denmark

Top
#3127811 - 09/17/13 05:16 PM Re: DIY Jet Engines....Anyone? [Re: itguy08]
Thermo1223 Offline


Registered: 04/18/05
Posts: 1965
Loc: Easton, PA
Originally Posted By: itguy08
Which makes me wonder - a hybrid with a turbine would be a great idea. You could put a large battery in it, and have the turbine turn on and off as needed. Sort of like the Volt but with a turbine.


GM did that with EV1 but obviously never released it to the public.

Audi's E-tron had a wankel in the back ala Volt style.
_________________________
2004 - Jetta Wagon TDI - Gone
2009 - Subaru Forester XT - 4AT 5k OCI
2014 - Scion xD - 4AT Toyota Care

Top
#3128059 - 09/17/13 09:03 PM Re: DIY Jet Engines....Anyone? [Re: Phishin]
Cujet Offline


Registered: 02/15/03
Posts: 4629
Loc: Jupiter, Florida
I've built turbo based jet engines and non turbo based gas turbines. A few liquid fueled rocket engines and so on.

It's quite easy if you know the basics of turbo machinery. It's impossible if you don't understand how and why they work. For every success story, there are many failures you don't hear about. Remember that compressor and turbine sizing is very important. Along with proper combustion chamber design.


As for practical use, forget it. I one turbojet I built made 300 pounds of thrust and consumed about a 55 gallon drum of fuel per hour.
_________________________
Turbo's rule.

Top