What fuel should I run? - Honda ATV Forum
ATV Racing Discussion From backyard to Professional ATV Racing!

  • 1 Post By Gunnar804
LinkBack Thread Tools Display Modes
post #1 of 9 (permalink) Old 02-24-2017, 10:21 AM Thread Starter
Junior Member
Gunnar804's Avatar
Join Date: Feb 2017
Posts: 3
Liked: 1 times
What fuel should I run?

Ok so I am just finishing up a new build for my 2000 400ex. It is set up for tt racing so will be ran hard. The build is a 416 bore with a Wiseco 11:1 piston. Stage 3 Hotcam. Ported head, KnN air filter. AMR racing Stage 3 CDI and ignition coil, and a full Empire industries exhaust. My question is, what fuel should I run with this build during break in and on the track?
Gunnar804 is offline  
Sponsored Links
post #2 of 9 (permalink) Old 02-24-2017, 10:35 AM
Senior Member
Supporting Member
rodp's Avatar
Join Date: Aug 2015
Location: Black Country, England
Posts: 742
Liked: 376 times
Can I ask what "TT" racing is. The TT over here is a road race around the Isle of Man. A very fast, dangerous and almost suicidal race at that.
rodp is offline  
post #3 of 9 (permalink) Old 02-24-2017, 12:44 PM Thread Starter
Junior Member
Gunnar804's Avatar
Join Date: Feb 2017
Posts: 3
Liked: 1 times
TT stands for tight track. It's a flat track race on dirt with very sharp turns throughout the track. Typical setups for this type of racing include lowering and widening your quad and swaybars
rodp likes this.
Gunnar804 is offline  
Sponsored Links
post #4 of 9 (permalink) Old 02-24-2017, 12:52 PM
MikeDawg46L's Avatar
Join Date: Jul 2016
Location: NC
Posts: 89
Liked: 7 times
With 11:1 compression you'd be asking for trouble running anything besides 50/50 blend of 93/110. I'd run straight 110 in it myself, but at $8/gallon you could probably cut it with 93 and be ok.

My 300 Fourtrax has a .040" over 10.25:1 Wiseco piston and I'm still getting a little pre-detonation with 93 non-ethanol when I've been riding for a few hours and get on the gas hard. Unfortunately, the only local station that sells race gas (Cam2 110 octane) has been out for a few weeks with no ETA on their next delivery.
MikeDawg46L is offline  
post #5 of 9 (permalink) Old 02-24-2017, 02:05 PM Thread Starter
Junior Member
Gunnar804's Avatar
Join Date: Feb 2017
Posts: 3
Liked: 1 times
So you think 93 unleaded pump gas mixed with VP 110 would do the trick? Do they mix well? I don't know much about mixing the 2 if they would blend well or not.
Gunnar804 is offline  
post #6 of 9 (permalink) Old 02-26-2017, 05:28 AM
Senior Member
Nanook12's Avatar
Join Date: Nov 2015
Location: Interior Alaska
Posts: 177
Liked: 57 times
100LL aviation would work. You might want to run something like TCP or cam guard to minimize the lead buildup. Probably @ $5.00 a gal.

2008 Honda Rancher, manual shift, Alum Rubicon (old style) wheels & tires. Warn R/T 2500,
2015 Rubicon, manual shift, 3500SR Terra Superwinch, Strongmade receiver hitch.
2018 Foreman, manual shift, 2500-S Warn Provantage.
Nanook12 is offline  
post #7 of 9 (permalink) Old 02-26-2017, 06:41 AM
Senior Member
Supporting Member
b52bombardier1's Avatar
Join Date: Jun 2013
Location: Bossier City Louisiana
Posts: 2,608
Liked: 345 times
All of these gasolines blend well and won't separate later. No worries there. But I'd buy them in the smallest practical quantities for reasons of freshness.


2006 Green Honda Foreman 500 - Viper Elite Winch
2004 Yellow Honda 250ex - Grandson's Bike
1971 School Bus Yellow "Spaghetti" Harley-D Sprint 350
1972 Candy Yellow Honda CL100 K2
1972 Candy Jet Green Honda CB500
1973 Mighty Green Honda ST90 K0
1974 Mars Orange Honda CT90 K5
1975 Topaz Orange Honda ST90 K2
1976 Shiny Orange Honda CT90
b52bombardier1 is online now  
post #8 of 9 (permalink) Old 02-26-2017, 07:15 AM
Super Moderator
Supporting Member
TRX2fiveO's Avatar
Join Date: Jun 2009
Location: East coast North Carolina
Posts: 18,227
Liked: 411 times
416 with 11:1 you'll be fine on pump gas. 104 race fuel would be ok straight too. . . when you get into the 12:1 and up you'll need to run a higher octane.... Also be mindful of your need to jet the engine properly with the fuel you run. 100LL AV Gas works great and the shelf life is much longer than MO Gas. not to mention WAY cleaner. As mentioned using the additive for the 100LL will help some with deposits but it is LOW LEAD.. lol
I run Pump fuel in my 426 when trail riding. I like to dabble on the drag strip sometimes so I'll run VP110 or 104 too.

96 Polaris 400L sport (Mrs. Moose Ride)
07 Suzuki LTZ250 (Sons)
96 Polaris 250 Trail Blazer (daughters)
06 TRX450ER aka === Under construction

Progress and Help
TRX2fiveO is offline  
post #9 of 9 (permalink) Old 04-15-2017, 04:53 PM
Senior Member
jameslb's Avatar
Join Date: Nov 2016
Location: Tucson Arizona
Posts: 194
Liked: 34 times
When I learned TT it meant flat dirt track with at lest one right turn. Cheers.
jameslb is offline  

  Lower Navigation
Go Back   Honda ATV Forum > Honda ATV Discussions > ATV Racing Discussion

Quick Reply

Register Now

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

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


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

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