Can I use ethanol in my 929? - Honda Motorcycles - FireBlades.org
Honda FireBlade Discussion of the Honda CBR 900RR, Honda CBR 929RR, Honda CBR 954RR, and Honda CBR 1000RR Motorcycles.

User Tag List

Reply
 
LinkBack Thread Tools
post #1 of 30 Old 07-26-2008, 2:51 AM Thread Starter
 
Join Date: 07-12-2008
Posts: 34
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Can I use ethanol in my 929?

Here in Thailand if you are outside of Bangkok most of the stations only sell "gasahol." It is 95 octane, 10% ethanol. Will running ethanol do any damage to the fuel system?
Millsee is offline  
Sponsored Links
Advertisement
 
post #2 of 30 Old 07-26-2008, 3:23 AM
 
Join Date: 07-21-2007
Location: Orange County
Posts: 258
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 14
   
Re: Can I use ethanol in my 929?

all gasoline sold at gas stations contain a certain percentage of ethanol... you'll be fine
cbrsmurf is offline  
post #3 of 30 Old 07-28-2008, 12:25 AM
 
Join Date: 04-24-2007
Location: Sydney, Australia
Age: 54
Posts: 1,003
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 21
             
Re: Can I use ethanol in my 929?

Quote:
Originally Posted by cbrsmurf View Post
all gasoline sold at gas stations contain a certain percentage of ethanol... you'll be fine
Thats news to me!

And I thought it was something that was added, hence manufacturers coming out and saying which models are suitable to work with E10 or other ethanol levels.
dicknose is offline  
Sponsored Links
Advertisement
 
post #4 of 30 Old 07-28-2008, 1:49 AM
 
Join Date: 07-21-2007
Location: Orange County
Posts: 258
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 14
   
Re: Can I use ethanol in my 929?

next time you are at the pump, check out the labels, it'll say the gas is x% ethanol

there's also a topic about it in wikipedia
Gasoline - Wikipedia, the free encyclopedia
cbrsmurf is offline  
post #5 of 30 Old 10-09-2008, 6:03 PM
 
Join Date: 11-15-2007
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: Can I use ethanol in my 929?

How do your bikes run on these ethanol blinds?
Maness1220 is offline  
post #6 of 30 Old 10-09-2008, 8:33 PM
 
Join Date: 05-29-2008
Location: Portland, OR
Posts: 148
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 12
 
Re: Can I use ethanol in my 929?

Like a bat out of hell. According to some pseudo-scientific tests, it will lower your miles per tank a little bit.
bonham is offline  
post #7 of 30 Old 10-09-2008, 9:58 PM
 
Join Date: 12-29-2006
Location: va
Posts: 258
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 13
 
Re: Can I use ethanol in my 929?

yep gas milage drops big time
bignibb is offline  
post #8 of 30 Old 10-09-2008, 11:58 PM
 
Join Date: 06-04-2008
Location: minnesota
Age: 33
Posts: 179
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 12
 
Re: Can I use ethanol in my 929?

Quote:
Originally Posted by bignibb View Post
yep gas milage drops big time
thats bull..


here in minnesota a lot of people run e85 and e98. e85 yields a roughly 105 octane rating while using 30% more fuel to atomize correctly.

but when using 10% ethanol gas here (every single gas station) the gas mileage doesnt drop noticeably, it actually increases in many cases (turbo cars, high compression vehicles) increases burn quality, its also a cleaner burn.
honda3x23 is offline  
post #9 of 30 Old 10-10-2008, 12:34 AM
 
Join Date: 05-29-2008
Location: Portland, OR
Posts: 148
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 12
 
Re: Can I use ethanol in my 929?

Ethanol Gas Mileage - Increase or Decrease? Ethanol - Production of Ethanol Fuel

For those interested in reading about it, it appears to depend on the blend. Have a look at the study run by the American Coalition for Ethanol.
bonham is offline  
post #10 of 30 Old 10-10-2008, 12:40 AM
 
Join Date: 09-08-2006
Location: Glenwood Springs Colorado
Age: 36
Posts: 242
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 14
 
Re: Can I use ethanol in my 929?

During the winter most gas you buy has about 10% ethanol. This is to help fight pollution. It takes more energy to burn it. During the summer gas usually has a lower amount. E85 is 85% ethanol and 15% gas. I believe the Flex fuel cars have a higher compression ratio allowing it to burn. Since your bike has a high ratio too i think it would burn just fine. Prob get lower mpg.
HondaForLife954 is offline  
post #11 of 30 Old 10-10-2008, 12:46 AM
Global Moderator
 
Join Date: 05-01-2006
Posts: 5,652
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 198 Post(s)
Reputation Power: 25
           
Re: Can I use ethanol in my 929?

Octane and compression ratio do not go hand in hand. The head design plays a big part as can cylinder size.
lanbrown is offline  
post #12 of 30 Old 10-10-2008, 1:42 AM
 
Join Date: 06-04-2008
Location: minnesota
Age: 33
Posts: 179
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 12
 
Re: Can I use ethanol in my 929?

Quote:
Originally Posted by lanbrown View Post
Octane and compression ratio do not go hand in hand. The head design plays a big part as can cylinder size.
what!?

this is the second time someone has gave poor information, honestly please dont post unless you have a clue!!!!!

octane rating is pretty much the ability for fuel to be compressed until it combusts, compression ratio is the distance from the bottom of the piston stroke to the top of the piston stroke (bdc to tdc) they are in fact DIRECTLY related in every way. basically not enough octane, detonation, holes in pistons etc.

(yes the firing chamber does effect it but all you're doing is changing the distance from tdc)

Last edited by honda3x23; 10-10-2008 at 8:43 AM.
honda3x23 is offline  
post #13 of 30 Old 10-10-2008, 3:24 AM
Global Moderator
 
bladeracer's Avatar
 
Join Date: 11-14-2003
Location: Perth, WestOz
Age: 53
Posts: 32,034
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Reputation Power: 230
                     
Re: Can I use ethanol in my 929?

The head design can play a part in it due to volumetric efficiency.
During most of the rev range you are getting less than 100% cylinder filling due to valve overlap (the intake valve may be closing while the piston is still descending or the exhaust valve is still open when the intake opens) and other factors. You may well have a mechanical compression ratio of 13:1 say but if you only have 80% of the cylinder filled with mixture you are not compressing it anywhere close to detonation. On the other hand, you could be running a 12:1 ratio and still experience detonation at certain points in the rev range if the engine is breathing exceptionally well due to cam and head design where you might see 110% volumetric efficiency - that's stuffing 275cc of mixture into a 250cc cylinder.
A very poorly designed engine could perhaps run 14:1 on standard pump gas with no detonation at all.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
bladeracer is offline  
post #14 of 30 Old 10-10-2008, 8:36 AM
 
Join Date: 06-04-2008
Location: minnesota
Age: 33
Posts: 179
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 12
 
Re: Can I use ethanol in my 929?

Quote:
Originally Posted by bladeracer View Post
The head design can play a part in it due to volumetric efficiency.
During most of the rev range you are getting less than 100% cylinder filling due to valve overlap (the intake valve may be closing while the piston is still descending or the exhaust valve is still open when the intake opens) and other factors. You may well have a mechanical compression ratio of 13:1 say but if you only have 80% of the cylinder filled with mixture you are not compressing it anywhere close to detonation. On the other hand, you could be running a 12:1 ratio and still experience detonation at certain points in the rev range if the engine is breathing exceptionally well due to cam and head design where you might see 110% volumetric efficiency - that's stuffing 275cc of mixture into a 250cc cylinder.
A very poorly designed engine could perhaps run 14:1 on standard pump gas with no detonation at all.
WHAT, any evidence behind this?

btw thanks for the explanation on scavenging, but i got chamber size covered already, thanks cheif

(yes the firing chamber does effect it but all you're doing is changing the distance from tdc)




Last edited by honda3x23; 10-10-2008 at 8:54 AM.
honda3x23 is offline  
post #15 of 30 Old 10-10-2008, 9:34 AM
 
Join Date: 08-12-2008
Posts: 150
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: Can I use ethanol in my 929?

In the US you can't buy gas without Ethanol added, unless you buy race fuel only...that would be expensive. What I have heard, and had confirmed by a couple of mechanics is that this amount of ethanol mixed with fuel will deteriorate any rubber parts in your motor, usually seals and the like. Not like acid would, but they will deteriorate considerably faster than using only gasoline. I am honestly waiting for all my seals to blow out and see what the manufacturers are going to do about this, design new seals that will withstand the new gas, replace the motor and rebuild with said seals....I highly doubt they will do any of this but the bottom line is, these motors were not made with ethanol in mind and will not last as long as they may have using straight gasoline with out hte ethanol additive.

my .02
DragonRider is offline  
Reply

  Lower Navigation
Go Back   Honda Motorcycles - FireBlades.org > Honda Motorcycle Models > Honda FireBlade

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Honda Motorcycles - FireBlades.org forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
A valid e-mail address is REQUIRED. You will not have access to any site features until you activate your account using the activation e-mail that is sent to this address.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Is it ok to use Castrol GTX 10w30 in my 00 929? blue89turbo Honda FireBlade 65 03-06-2010 1:03 AM
best oil to use in my RC51? theheat General Discussion 8 10-28-2007 1:47 AM
Ethanol sucks Pete Off-Topic 64 08-04-2006 7:36 AM
PC3 map, what can I use. slodsm Honda FireBlade 1 01-11-2005 11:23 PM
Can I use 954 fairings on my 929??? Hondalush318 Honda FireBlade 4 05-14-2004 1:57 PM

Posting Rules  
You may post new threads
You may 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 Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome