Race Fuel!! Safe or not? - 600RR.net
Exhaust & Fuel Delivery Tips on how to get the most out of your bike

 
LinkBack Thread Tools
post #1 of 16 (permalink) Old 06-14-2006, 12:44 PM Thread Starter
 
Join Date: Jun 2006
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Exclamation Race Fuel!! Safe or not?

I was wondering if anyone knew if it was safe to run race fuel in a 04 cbr 600rr with yoshimura exhaust system and power commander III to drag. "not everday riding." i think i can get 107 or 108 octane at my local airport. I can also purchase 103 octane at my local drag strip.
SicCbr600RR is offline  
Sponsored Links
Advertisement
 
post #2 of 16 (permalink) Old 06-14-2006, 12:52 PM
Pocketbike Racer
 
jshortsl's Avatar
 
Join Date: Jan 2005
Location: Northern Virginia
Posts: 381
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
jshortsl is offline  
post #3 of 16 (permalink) Old 06-14-2006, 01:08 PM
 
Join Date: Mar 2005
Posts: 1,212
Images: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
It's just oxygenated...it's safe.
SilverSurfer is offline  
 
post #4 of 16 (permalink) Old 06-14-2006, 01:12 PM
Moto GP Racer
 
AlpineJim's Avatar
 
Join Date: Oct 2003
Location: Ohio
Posts: 4,894
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 3 reviews
You might want to go get a custom map with race fuel...

Matthew
03' 600rr - Track
AlpineJim is offline  
post #5 of 16 (permalink) Old 06-14-2006, 01:15 PM
Pocketbike Racer
 
lowlife's Avatar
 
Join Date: Nov 2004
Location: BC, Canada
Posts: 422
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
don't bother with the high octane, look for an oxygenated fuel, try MR10 from VP, supposed to be good for 10% power increase over pump gas....
lowlife is offline  
post #6 of 16 (permalink) Old 06-14-2006, 02:47 PM Thread Starter
 
Join Date: Jun 2006
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
you were saying get fuel from vp. what is "VP"?
SicCbr600RR is offline  
post #7 of 16 (permalink) Old 06-14-2006, 02:52 PM
Moto GP Racer
 
AlpineJim's Avatar
 
Join Date: Oct 2003
Location: Ohio
Posts: 4,894
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 3 reviews
AlpineJim is offline  
post #8 of 16 (permalink) Old 06-18-2006, 06:29 AM
Pocketbike Racer
 
Join Date: May 2005
Location: Gloucester, UK
Posts: 324
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Don't run aviation fuel you might see a loss on these type of engines.

Race Developments, UK. Race engines and dynojet centre.
Tim Radley is offline  
post #9 of 16 (permalink) Old 06-18-2006, 08:58 AM
 
Join Date: Feb 2006
Posts: 40
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Your gonna rob horsepower from the engine with higher octane. Stick with 87. Higher octane burns slower causing expanding gases to go out the exhaust valve when it opens. unless you do engine mods you are wasting your money. Make sure you stay away from aviation fuel it contains lead and the lead wil eventually clog the injectors. It will also leave heavy deposits on the plugs.
Wingmaker is offline  
post #10 of 16 (permalink) Old 06-18-2006, 09:59 PM
 
Join Date: May 2006
Posts: 85
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Unless you are going to run either VP MR9 or VP U4, or something similar by a different manufacture dont waste your money. Also, if you are not use to drag racing or havent even been yet dont get race fuel until after you have some good base line numbers to go with then put race fuel in and go back and compare your times to see if you are gaining anytime. Also, FYI, alot of race fuels have to be drained after use or ran completely out of the system if not you can damage your fuel system by letting it sit in there.
KawiHonda is offline  
post #11 of 16 (permalink) Old 06-19-2006, 08:42 PM
 
Join Date: Sep 2004
Posts: 130
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I would hope its safe.... I love the smell of U4 in the morning!!!

and gotta agree with everyone... only worth it if you tune the engine with it on a dyno, and build a custom map.
RRLucky is offline  
post #12 of 16 (permalink) Old 06-19-2006, 09:02 PM
 
Join Date: Apr 2006
Posts: 273
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
People always think that higher octane means more power. Normally it means less. High octane just means you can compress the gas more before it combusts. Low octane will combust with more energy at lower compression.
jener8tionx is offline  
post #13 of 16 (permalink) Old 06-19-2006, 09:26 PM
World Superbike Racer
 
KulSecHskY's Avatar
 
Join Date: Aug 2003
Location: 626/909 so cal
Posts: 1,769
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 2 reviews
Quote:
Originally Posted by jener8tionx
Low octane will combust with more energy at lower compression.

Really? Never heard that before.

So if I dyno my RR with 87 octane as recoomended and lets say I get X amount of torque and hp, then I switch to 93 octane and use the same dyno, same conditions yada yada yada then I will in fact see a loss in power?



And assuming Honda left a little safety margin when recommending 87 octance, if I fill it up with 85 octance will I see a gain in power? Ofcourse assuming this will not cause detonation?


-Rich
KulSecHskY is offline  
post #14 of 16 (permalink) Old 06-19-2006, 11:20 PM
gee
Overpaid South Pacific Barista overactive ADHD crew off their meds!!
 
gee's Avatar
 
Join Date: Feb 2006
Location: a day ahead
Posts: 27,367
Thanks: 190
Thanked 43 Times in 41 Posts
Feedback Score: 1 reviews
nope if you use lower octane in you cbr engine the compression ratio is around 12:1 wot hes saying is that at 9:1 or there about you would see no power gain in using a higher octane fuel...
gee is offline  
post #15 of 16 (permalink) Old 06-20-2006, 02:31 AM
Pocketbike Racer
 
Join Date: May 2005
Location: Gloucester, UK
Posts: 324
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
What you will find is the higher octane pump fuels aren't just more octane, they are better ingredients which is why some brands make much more power than other of the same octane. This is why 93 makes more power than 87, its not to do with the octane rating.

Race Developments, UK. Race engines and dynojet centre.
Tim Radley is offline  
post #16 of 16 (permalink) Old 06-20-2006, 09:07 AM
 
Join Date: Sep 2005
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
wow you learn something new every day, 87ron regular ei

here in oz 93 is about standard, and up to 98 for premium, but yeah im told allways run it on what's it tuned for,

btw i've head japan regular petrol is 100 RON, and premium is 110 RON

so i'd say high octaine fuel in a jap made bike should be ok with the right mapping,
buffaloo is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the 600RR.net 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
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










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



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

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