RX7Club.com


Go Back   RX7Club.com > Generation Specific > 1st Generation Specific (1979-1985)
Register Forgot Password?

Welcome to RX7Club.com!
Welcome to RX7Club.com,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to start new topics, reply to conversations, privately message other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join RX7Club.com today!


Closed Thread
 
 
 
 
LinkBack Thread Tools Search this Thread Display Modes
Old 06-17-07, 02:25 AM   #1
New Member
 
Soup Man's Avatar
 
Trader Score: (0)

Join Date: Jun 2007
Location: Canada
Posts: 7
Propane on a rotary?

Any one ever done this?

You all will hate me, but I don't care,

I have placed an 83 motor in a suzuki sj410, while it's a better motor, I would like the availability of near fuel injection for the ease of offroading. If anyone has done the propane thing and made it work near perfect, please let me know if there were any problems and if the parts were off the shelf, or if i have to create a mixer for the intake. or do I have to make a new intake? Thanks.

And if you don't have anything to comment on the thread, keep it to yourself, thanks again.
Soup Man is offline  
Old 06-17-07, 03:24 AM   #2
Wassup!!
10 Year Member
 
Rotor13B's Avatar
 
Trader Score: (0)

Join Date: Jul 2001
Location: Longmont Co.
Posts: 1,081
lol.
__________________
1983 gsl/13B, dhla 48 carb, racing beat intake and SP exhaust
autometer gauges, 4 point safety harness, racing beat plug wires yada yada yada........
Rotor13B is offline  
Old 06-17-07, 04:32 AM   #3
Banned. I got OWNED!!!
5 Year Member
 
Trader Score: (2)

Join Date: Oct 2004
Location: London, Ontario
Posts: 6,122
While I have not heard of anyone doing a Modification like this to these engines, I have heard that hydrogen on the other hand is actually not that complicated to get to work on rotary engines. Mazda actually has a few prototype RX-8's running on hydrogen already used for their company cars in Japan. So the research for that has already started and been done.

http://media.ford.com/mazda/article_...34&make_id=227

http://www.millville.org/Workshops_f.../hydrogen.html

http://images.google.ca/imgres?imgur...%3Den%26sa%3DN

Also this shows why a rotary engine is a very good platform for this type of fuel
dj55b is offline  
Old 06-17-07, 09:32 AM   #4
Skippy
 
NathanWalkington's Avatar
 
Trader Score: (0)

Join Date: Jun 2005
Location: Minnesota
Posts: 17
Send a message via MSN to NathanWalkington
yes the do it in Australia all the time... LPG powered vehicles.. there wasa 1st Gen over there that ran Natural Gas....

i fyou go to racing beat they have the Fast Fours videos... it is on one of them...
NathanWalkington is offline  
Old 06-17-07, 10:52 AM   #5
PSHH! PSHH! HEAR ME NOW?
5 Year Member
 
bad 83's Avatar
 
Trader Score: (3)

Join Date: Nov 2005
Location: Statesville NC
Posts: 4,130
If you can find a junk fork lift with a Propane setup on it, you can look it over to see what you will need. We use inline six ford engines with Propane at work. Hardly no cold start up. One of my friends at work did a Propane kit on a late model Ford Ranger 4 cyl. He has his setup where he can switch back and forth between the two going down the road. He says there is a slight hesitation going from gasoline to LP. But no hesitation when he switches back. I really don't see why this couldn't be used on a Rotary engine, but I'm not a Mazda engineer.
__________________
'83 GSL= S4 9.4 Rotors,Cryo Apex Seals,S5 TII Street Port Irons,S6 Race Port Housings, GT35R Turbo,RFL Bov,MSD 6A,FMIC,TII Alt,Walbro 255,3" Exhaust,R-Tek 2.1,720 SEC,6 Puck Clutch,TII Trans, 320rwhp 299tq @ 15psi
bad 83 is offline  
Old 06-17-07, 11:12 AM   #6
Brap, Brap, Ole!
 
mikewoodkozar's Avatar
 
Trader Score: (0)

Join Date: Apr 2005
Location: kalamazoo, mi
Posts: 1,461
I have heard of propane powered rotaries, it has been a while though
__________________
1984 Mazda RX-7 GSL 12A with Mikuni 44 and only 60K miles!
1993 Mazda RX-7 Vintage Red base model ***SOLD***
2001 Mazda Millenia Emerald Mica ***SOLD***
mikewoodkozar is offline  
Old 06-17-07, 11:23 AM   #7
No Life.
5 Year Member
 
Rotospeed's Avatar
 
Trader Score: (7)

Join Date: Feb 2007
Location: Phoenix, AZ (far west side)
Posts: 784
FYI... when running on LP you have way less power. My old truck ran on gas and LP, when i was hauling stuff i hated the LP.
Rotospeed is offline  
Old 06-17-07, 11:25 AM   #8
Brap, Brap, Ole!
 
mikewoodkozar's Avatar
 
Trader Score: (0)

Join Date: Apr 2005
Location: kalamazoo, mi
Posts: 1,461
LP = low HP, lol
__________________
1984 Mazda RX-7 GSL 12A with Mikuni 44 and only 60K miles!
1993 Mazda RX-7 Vintage Red base model ***SOLD***
2001 Mazda Millenia Emerald Mica ***SOLD***
mikewoodkozar is offline  
Old 06-17-07, 11:43 AM   #9
New Member
 
Soup Man's Avatar
 
Trader Score: (0)

Join Date: Jun 2007
Location: Canada
Posts: 7
Wow, I thought there'd be at least one smart *** answer, but this is good. How about this, if you are an oxygen theif, please don't waste your time by telling me that 100-110 octane propane is less power, It's half the price, burns cleaner, reduces oil sludge, creates a cooler firing chamber and doesn't settle out like gas.

The measurements for the impco 450 mixer can be made to work with a 3/4" flange crossing over the bolt pattern, The mixer heating will be a bit of an issue, but I assume the oil cooler will put out enough heat to rectify and heat exchanger issues in the mixer.
What I am wondering is if the rotary housing could be damaged by the cooler firing temps, and the cooler plugs?
What is the internal compression on the gas jobby?
Do the apex seals hold much pressure back, or are they for the oil?

And if you think the propane is 20-30% less power, you're either dumb, or just wrong alot, how do you lose that much power when burning more suspended gas particles, at higher firing pressures, at lower temperatures? I am pretty sure if you have heard of low power propane jobs, then they were set up incorrectly.


Or you heard that from your cousin that married your sister, anyways, thanks for the "GOOD" replies. I will keep you updated as to the power gains or possible loss, and the issues associated with propane in a rotary.
Soup Man is offline  
Old 06-17-07, 11:46 AM   #10
Old Fart Young at Heart
10 Year Member
 
trochoid's Avatar
 
Trader Score: (6)

Join Date: Apr 2004
Location: St Joe MO
Posts: 15,135
Send a message via MSN to trochoid
I have a old 65 Chevy C-60 grain truck that's dual fuel. Has a single barrel carb carb sitting on what I think is a 327 cu. in. V8 The propane tank was empty when I bought the truck in 93, never have tried it out.

I see no reason why LPG/LNG wouldn't work on a rotary. I just have a hard time wrapping my mind around the idea of a single barrel carb on a small block V8, lol.
trochoid is offline  
Old 06-17-07, 12:12 PM   #11
No Life.
5 Year Member
 
apexFD's Avatar
 
Trader Score: (0)

Join Date: Oct 2006
Location: BC, Canada
Posts: 1,319
Hydrogen is the key. If they can blast a space shuttle into space with it...

None of this fuel cell electric car ****.

A Hydrogen combustion engine is the key, just so happens that engine is the rotary. Just needs more research and funding. Not only is it 100% clean, but it does not try to re-invent the wheel. With electric cars everybody would have to junk their old cars, or do a costly swap with an electric system. Why not use the cars we already have... change the fuel to burn clean, way less hassle, time and money saved.

I think this is a huge market for the rotary engine. Its a new chance to be finally accepted by the rest of the automotive world.

Now if Ferrari ever bought into the rotary engine, they would certainly focus on preformance. Think of where the rotary engine could end up with 1 billion dollars spent in research on it every year!!


-Ben
apexFD is offline  
Old 06-17-07, 03:59 PM   #12
Banned. I got OWNED!!!
5 Year Member
 
Trader Score: (2)

Join Date: Oct 2004
Location: London, Ontario
Posts: 6,122
Electric cars are not junk, as you mentioned we have millions of cars that run on gasoline/diesel and that is the problem what to do with them all. And I have showed in the previous links of why hydrogen works so good with our engines. It was actually one of the first things that I looked up before buying this car too ... alternative fuels.

Also there is extra weight to be associated with the weight of the tanks mostly also as mentioned in one of the link its close to 300kg
dj55b is offline  
Old 06-17-07, 04:09 PM   #13
Insane Burnout
 
drittens's Avatar
 
Trader Score: (0)

Join Date: Mar 2005
Location: Amarillo, Texas
Posts: 425
Send a message via AIM to drittens Send a message via MSN to drittens Send a message via Yahoo to drittens
http://www.gotpropane.com/
drittens is offline  
Old 06-17-07, 04:10 PM   #14
Skippy
 
NathanWalkington's Avatar
 
Trader Score: (0)

Join Date: Jun 2005
Location: Minnesota
Posts: 17
Send a message via MSN to NathanWalkington
Quote:
Originally Posted by Rotospeed View Post
FYI... when running on LP you have way less power. My old truck ran on gas and LP, when i was hauling stuff i hated the LP.
The guy running it onteh 1st Gen in the vids from Australia didnt seem to have LOW power... he was running low 12's on a 13b turbo swap that was pretty much stock...
NathanWalkington is offline  
Old 06-17-07, 04:15 PM   #15
Insane Burnout
 
drittens's Avatar
 
Trader Score: (0)

Join Date: Mar 2005
Location: Amarillo, Texas
Posts: 425
Send a message via AIM to drittens Send a message via MSN to drittens Send a message via Yahoo to drittens
Quote:
Originally Posted by dj55b View Post
While I have not heard of anyone doing a Modification like this to these engines, I have heard that hydrogen on the other hand is actually not that complicated to get to work on rotary engines. Mazda actually has a few prototype RX-8's running on hydrogen already used for their company cars in Japan. So the research for that has already started and been done.

http://media.ford.com/mazda/article_...34&make_id=227

http://www.millville.org/Workshops_f.../hydrogen.html

http://images.google.ca/imgres?imgur...%3Den%26sa%3DN

Also this shows why a rotary engine is a very good platform for this type of fuel
what I don't get is why they detuned their protypes so much - the Rx-8's were only pushing 100hp - there is no reason to bring the power down so much, its certianly not jsut because of the conversion.
drittens is offline  
Old 06-17-07, 04:21 PM   #16
Thunder from downunder
10 Year Member
 
aussiesmg's Avatar
 
Trader Score: (1)

Join Date: Mar 2001
Location: Convoy, Ohio, USA
Posts: 3,843
Send a message via ICQ to aussiesmg
There was a propane/LPG powered RX7 that rallied against me in Australia, there are many LPG powered rotaries on the roads, and LPG if uned for LPG alone will make much more power due to the 110 octane as stated, the reason many don"t is they are still able to run on gas, which is lower octane and the tune must be compromised to handle both fuels.

I had a 302 Ford Falcon XC GS ute in Australia that was LPG only via a carb built by a Dandenong, Victoria area specialist whose name escapes me right now, the truck had great power for a basically stock engine.

Mountains of info in this site

http://www.lpgaustralia.com.au/
__________________
Old age isn't so bad when you consider the alternative.

http://www.cardomain.com/id/aussiesmg
aussiesmg is offline  
Old 06-17-07, 06:43 PM   #17
I has an emblem
10 Year Member
 
-xlr8planet-'s Avatar
 
Trader Score: (3)

Join Date: May 2003
Location: Argentina
Posts: 1,772
Send a message via ICQ to -xlr8planet- Send a message via MSN to -xlr8planet- Send a message via Skype™ to -xlr8planet-
People runs natural gas on rotaries here.

The downside is, if you run them lean, you wont notice, and the engine dies in a couple hundred miles

Apex seal groove expands, apex seals get eaten away and rotor housings get scraped like hell

Not a good deal
-xlr8planet- is offline  
Old 06-17-07, 08:04 PM   #18
Rotoholic Moderookie
10 Year Member
 
vipernicus42's Avatar
 
Trader Score: (4)

Join Date: May 2002
Location: Ottawa, Soviet Canuckistan
Posts: 5,798
Send a message via ICQ to vipernicus42 Send a message via MSN to vipernicus42
Quote:
Originally Posted by Soup Man View Post
Wow, I thought there'd be at least one smart *** answer, but this is good. How about this, if you are an oxygen theif, please don't waste your time by telling me that 100-110 octane propane is less power, It's half the price, burns cleaner, reduces oil sludge, creates a cooler firing chamber and doesn't settle out like gas.

The measurements for the impco 450 mixer can be made to work with a 3/4" flange crossing over the bolt pattern, The mixer heating will be a bit of an issue, but I assume the oil cooler will put out enough heat to rectify and heat exchanger issues in the mixer.
What I am wondering is if the rotary housing could be damaged by the cooler firing temps, and the cooler plugs?
What is the internal compression on the gas jobby?
Do the apex seals hold much pressure back, or are they for the oil?

And if you think the propane is 20-30% less power, you're either dumb, or just wrong alot, how do you lose that much power when burning more suspended gas particles, at higher firing pressures, at lower temperatures? I am pretty sure if you have heard of low power propane jobs, then they were set up incorrectly.


Or you heard that from your cousin that married your sister, anyways, thanks for the "GOOD" replies. I will keep you updated as to the power gains or possible loss, and the issues associated with propane in a rotary.


Okay.. so you come in here, ask a question with your first post, people actually try to contribute to your thread (and you were surprised) so you repay the kindness of this forum by hurling insults at one of our members. Good job Cpt. Dumbass.

It's one thing to disagree with someone or think that they're wrong, it's another to go off the handle and imply that he's an inbred.

If you do anything like that again, you're getting the banstick. Play nice.

Jon
vipernicus42 is offline  
Old 06-17-07, 08:04 PM
RX7Club
Mazda RX7




Paid Advertisement


 
 
 
Closed Thread

Tags
12a, conversion, engine, engines, ford, full, inline, jobs, mazda, mikuni, ohio, propane, ranger, rotary, run, rx7

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Propane Conversion? kenton 3rd Generation Specific (1993-2002) 6 05-25-08 07:37 PM
Propane Injection Call 911 Single Turbo RX-7's 54 02-28-05 11:58 PM
Propane questions Conundrum 4000 Single Turbo RX-7's 7 06-25-04 10:47 AM
Anyone ever try propane injection? SPOautos Single Turbo RX-7's 7 03-19-04 10:57 PM
vid of rx7 on propane incendui 2nd Generation Specific (1986-1992) 0 10-03-02 03:16 PM


All times are GMT -5. The time now is 03:54 PM.
All content Copyright 2007 by Internet Brands, Inc.

Contacts