Is U4 Fuel All Its Hyped Up To Be - Kawasaki ZX-10R.net
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 26 Old 04-27-2006, 09:05 PM Thread Starter
BANNED
 
Join Date: Jan 2006
Posts: 248
Posting Frequency
 
Is U4 Fuel All Its Hyped Up To Be

Im going to the strip this weekend in plans to hopefully win some cash. last time i went, i ran some 112 in my bike and ran a best ever of [email protected] 145. i have the chance to get some of the u4. the difference is,, i can buy the 112 by the gallon at 6.75 a gallon compared to the 5 gal minimum u4 at 80 bucks. i know every tenth counts and from what i hear the u4 is the shiznit. IS IT????? how much should it pick me up and do i need to drain my tank if i have some left over???i usually drain my tank and add around half a gallon evry so often. i heard that if i leave the u4 in my tank that it will gum up.....true or not???
mikebar4 is offline  
Sponsored Links
Advertisement
 
post #2 of 26 Old 04-27-2006, 09:10 PM
GP Rider
 
mach_man_187's Avatar
 
Join Date: Mar 2005
Location: Toledo, Ohio
Posts: 1,944
Posting Frequency
Images: 5
   
U4 IS all that, and then some! Guys were running it at the track last year. Yes you should drain the U4 out of your tank at the end of the day.

If you're not living on the edge, your taking up too much space!
mach_man_187 is offline  
post #3 of 26 Old 04-27-2006, 11:19 PM
Bloo Moderator
 
bluedevil's Avatar
 
Join Date: Nov 2004
Location: SAC,CA
Posts: 23,742
Posting Frequency
Images: 3
           
Quote:
Originally Posted by mach_man_187
U4 IS all that, and then some! Guys were running it at the track last year. Yes you should drain the U4 out of your tank at the end of the day.
I heard U4 was ok to leave in but MR9 you need to take out.
bluedevil is offline  
Sponsored Links
Advertisement
 
post #4 of 26 Old 04-28-2006, 01:44 AM
GP Rider
 
ninja2k5's Avatar
 
Join Date: Apr 2006
Location: Canal Winchester
Posts: 1,041
Posting Frequency
  
Quote:
Originally Posted by bluedevil
I heard U4 was ok to leave in but MR9 you need to take out.
ive heard you have to drain both....? ive yet to run either.

Last edited by ninja2k5; 04-28-2006 at 01:49 AM.
ninja2k5 is offline  
post #5 of 26 Old 04-28-2006, 07:23 AM
GP Rider
 
mach_man_187's Avatar
 
Join Date: Mar 2005
Location: Toledo, Ohio
Posts: 1,944
Posting Frequency
Images: 5
   
blue...It could be.....But I would personally drain either on after I was done for the day.

If you're not living on the edge, your taking up too much space!
mach_man_187 is offline  
post #6 of 26 Old 04-28-2006, 11:51 AM
Track Day Rider
 
GeorgeC's Avatar
 
Join Date: Mar 2005
Location: Melbourne, FL
Posts: 174
Posting Frequency
 
It's not recommended that you keep it in the bike. Besides possibly gumming up the fuel system, the fuel itself starts to lose it's potency when it's introduced to the air. Pump it back out of the bike and keep it sealed in the 5-gallon pail it comes it, and try to keep that in as cool/shaded area as possible for the best longevity of the fuel.

If you map for the U4, you could see as much as .1-.2 seconds in ET reduction, and ~2mph gain in trap speeds.

George Coffey
'05 ZX-10R (stock)
'05 Hayabusa: 8.87 @ 161mph "all motor"
GeorgeC is offline  
post #7 of 26 Old 04-28-2006, 12:41 PM
Post Whore
 
1killer1liter's Avatar
 
Join Date: Jan 2005
Location: In front of you!
Posts: 5,228
Posting Frequency
Images: 11
       
U4
Used in stock and modified 4-stroke applications, as well as stock 2-strokes. Makes up to 6% more power than pump gas and any basic nonoxygenated racing fuel. Passes fuel rules for AMA amateur racing and is also perfect for club level racing, CCS, WERA and AFM. For optimum horsepower and performance, do not store this fuel in vehicle — drain fuel system.

• Color: Clear
• Motor Octane: 92
• Specific Gravity: .718 at 60 F

---------------------------------------------------
MR9
VP's newest fuel for 4-stroke applications that can tolerate lower octane values. Makes up to 2-3% more power than VP's MR1, meaning nothing on the market makes more power than MR9! AMA legal except Supercross and Outdoor Nationals. For optimum horsepower and performance, do not store this fuel in vehicle — drain fuel system.

• Color: Clear
• Oxygenated: Yes
• Motor Octane: 87
• Specific Gravity: .718 at 60 F

I've used U4 and like it. Makes the bike run a little different, even without being mapped for it.


I live my life a quarter-pounder at a time. And for those 500 calories or more, im free. I need FRIESSSS! Two of them. The big ones. Oh, and I need them tonight. You're lucky the double shot of BBQ sauce didnt blow a seam on your nugget box.
1killer1liter is offline  
post #8 of 26 Old 04-28-2006, 03:45 PM
GP Star
 
10 speed's Avatar
 
Join Date: May 2005
Location: Charleston south carolina
Posts: 4,682
Posting Frequency
Images: 1
     
I like the ol mr9 myself. 11hp kick! but yes you need to run it out witch is fun on sunday rides!

I got tiered of buying go fast parts.... So i got a turbo! now i need go slow parts!
If it aint modded it aint yours!
10 speed is offline  
post #9 of 26 Old 04-28-2006, 07:11 PM
BANNED
 
Abortions Suck's Avatar
 
Join Date: Mar 2006
Posts: 814
Posting Frequency
 
as stated, its worth about 6%-9% on the dyno. so yes.. there is most definately a reason people run it. its also been known to eat up fuel pump seals.. run it dry its only a few more miles anyhow.

anyone care to speculate on how bad its going to be when ran through the '06 10R's. how long until it starts putting out o2 sensors?
Abortions Suck is offline  
post #10 of 26 Old 04-28-2006, 10:30 PM
GP Star
 
zeta xray's Avatar
 
Join Date: Sep 2003
Location: S. Texas, US of A
Posts: 2,299
Posting Frequency
   
Do '06 ZX10's have o2 sensors???? I don't think '04 or '05's have o2 sensors.

Don't confuse me with facts, my mind is already made up.
zeta xray is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki ZX-10R.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











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
WTB Fuel tank/Fuel pump bellevuetlr Wanted: Buy or Trade 2 12-13-2005 07:43 AM
Gas/Fuel How to Definitions/explanations! hillcountry10r Performance and Tech 11 10-25-2005 10:47 AM
Water In Fuel Tank? Lowvez ZX-6R & ZX-6RR Archives 2 06-27-2005 02:56 PM
Damaged fuel tank Shinobi The ZX-10R 13 12-04-2004 04:10 AM
Fuel Injector Immobilizer LED Indicator DerrickLHarris The ZX-10R 10 04-29-2004 12:59 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 On
Pingbacks are On
Refbacks are On

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