Sunoco 260 gtx

[Jewcati]

My bike is mapped for sunoco 260 gtx, and I am looking for an easy to get to local source. Does anyone know of anyplace that stocks it? I am in metrowest Massachusetts, but I work near Worcester.

[FalArAk]

468 Main Street Sunoco Leominster is where I used to get my race fuel for my dirt bike..If they don't have it I'm sure they can order it.

[fromario]

Don't they have this up at Loudon? Not really local, but I'm sure you need it for the track anyways

[Jewcati]

I thought they only had the vp? That would be eAsy if they did

[Kurlon]

It's available at Loudon, although I've no idea if they've fired the pumps up yet. Might want to call first?

[Jewcati]

Cool thanks! Do they have 5 gallon cans available or just pump?

[Kurlon]

Both, although the cans are only available when someone's working the scales garage IIRC, so depending on when you go the pump may be your only option.

[DZircher]

I thought they only had the vp? That would be eAsy if they did

They sell Sun 260, my garage mate Scott used it exclusively in the Harley.

[lrrs428]

The guy selling fuel in the cans is there like clock work and he will come down if he is not there if you call the front desk on the phone in the scales garage. He has come through for me a few times that I misjudged how much fuel I needed for the day.

[Jim]

since Sunoco 260 GT is the AMA spec fuel, you'll be able to get it at most race tracks.

FYI that's close to pump gas, so your bike doesnt need to run that 100 octane unleaded fuel. since you're probably riding at NHMS most of the time, just use the 93 at Gulf. you know it's $80 for a 5 gallon pale, right? Also, you'll need to siphon it out at the end of the track event and cycle pump gas in there. once you open a fuel pale, you'll have about 4 weeks before it starts to go stale. Coming from someone who was in your exact situation, just use pump gas.

[typeone]

468 Main Street Sunoco Leominster is where I used to get my race fuel for my dirt bike.

+1 that's where i buy from. call to see what they have in stock.

Akin Auto out in Baldwinville also carries a few different grades but pricing is high(er).

[xsiliconkid]

since Sunoco 260 GT is the AMA spec fuel, you'll be able to get it at most race tracks.

FYI that's close to pump gas, so your bike doesnt need to run that 100 octane unleaded fuel. since you're probably riding at NHMS most of the time, just use the 93 at Gulf. you know it's $80 for a 5 gallon pale, right? Also, you'll need to siphon it out at the end of the track event and cycle pump gas in there. once you open a fuel pale, you'll have about 4 weeks before it starts to go stale. Coming from someone who was in your exact situation, just use pump gas.

FYI - As pump gas is now (since 2012) available at NHMS. Fuel must be purchased from the track

[Jim]

thanks, didnt know that pump was 260 GT.

i believe he's a track day rider though, so he doesnt need to follow LRRS rules.

[xsiliconkid]

OK..got it...
back to race fuel..all might know this...but it is worth repeating. A stock motor in general using "race fuel" is not only a waste of money but produces less power (there are some exotic fuel exceptions).
To take advantage of race fuels, Engines needs to be modified (e.g., higher compression) and not just dyno'd.

[Jim]

back to race fuel..all might know this...but it is worth repeating. A stock motor in general using "race fuel" is not only a waste of money but produces less power (there are some exotic fuel exceptions).
To take advantage of race fuels, Engines needs to be modified (e.g., higher compression) and not just dyno'd.

what about a stock motor with a map for race fuel?
better to run it's mapped fuel, 93 octane, or 87...assuming this isn't for an LRRS event.

[GixerJockey]

what about a stock motor with a map for race fuel?
better to run it's mapped fuel, 93 octane, or 87...assuming this isn't for an LRRS event.

If it doesn't have increased compression, it doesn't need "race" fuel. Pretty much end of story. If it doesn't detonate, it doesn't need extra octane.

If a tuner is mapping a stock compression motor to run on race fuel, thank him for wasting your time and money.

[tls25rs]

FYI - As pump gas is now (since 2012) available at NHMS. Fuel must be purchased from the track

Graham,

I'm sure this info is posted somewhere, most likely in the rule book I got with my license but I don't have that here, but I am curious if you could post the 2014 fuel rules, or a link to them, here for us to see.

I haven't raced in a few years and plan on doing so this year and want to be sure I am doing the correct thing with regards to fuel. Typically I would just run the 93 octane from Gulf but after reading your above post I am not 100% sure what my valid fuel options are.

Thanks

Joel

[GixerJockey]

Graham,

I'm sure this info is posted somewhere, most likely in the rule book I got with my license but I don't have that here, but I am curious if you could post the 2014 fuel rules, or a link to them, here for us to see.

I haven't raced in a few years and plan on doing so this year and want to be sure I am doing the correct thing with regards to fuel. Typically I would just run the 93 octane from Gulf but after reading your above post I am not 100% sure what my valid fuel options are.

Thanks

Joel

The easy breakdown is: "If it is sold within NHMS, you can race with it"

Basically, 3 grades of Sunoco, sold out of the pumps near the scales garage. (93, 98, and 106... or something close to that) Or... VP fuel, sold in cans, from the track's VP vendor.


If you run pump, 93 octane, you buy it from the Sunoco pump within the track. NOT from the two gas stations located outside the track (like you used to)

[Kurlon]

There is pump 93 available at the track, that is LRRS legal. Pump fuel from anywhere else is NOT LRRS legal. There is also Sunoco 260 GTX available at the pump, as well as in the pail along with a ton of other more exotic blends for the more discerning connoisseur.

Jim - To answer your question, you're going to make the most power on the lowest octane fuel you can map for without detonation. Non-ethanol based oxygenated fuel can add some additional umph, but again you've got to map for it and if it's much higher octane than you need you're starting from further in the hole to try and find gains.

[tls25rs]

Got it!

Thanks for the replies.

Guess I'll just need to drain the fuel that is in the bike before I head up for my first weekend of the year whenever that is.

Joel

[xsiliconkid]

A general rule for race fuels.
If the basis of the race fuel is high(er) octane, the increase engine performance comes from engine mods to take advantage that pre-detonation will not occur until much higher temp/pressure. So the performance comes engine mods.
The higher octane comes from blending inert substances to slow down the burn and stop pre-det. These inert substances reduce the volatiles/volume. Therefore in a stock motor there is less bang.
note: there is some partial benefits if the fuel also has oxygenates as well but will not offset the higher octane producing inert substances

In other race fuels (rocket fuels) that do not have higher octane but do have a lot of oxygenates (release oxygen in the explosion) therefore by dyno'ing and getting the fuel/ air ratio correct by:
-remapping (longer duration injector spray and or fuel pressure) or
-larger carb jets
can usually give up to 10% performance gain

Again speaking generalities, track performance comes from
1. rider
2. suspension
3 tires
.
.
.
engine performance gain is way down the list..

ps another benefit of race fuels..... the formula never changes.....so predicable permanence from one can of fuel to the next.

[xsiliconkid]

Also FYI..most of the exotic rocket fuels are illegal in NH by state law.

[Jim]

If a tuner is mapping a stock compression motor to run on race fuel, thank him for wasting your time and money.

my EMpro is mapped for U4 back when Eslick rode it. no one can tune an EMPro in New England. no longer running the built motor that the EMpro was tuned for. That's the reason for my question. not running race fuel for the performance gains, but more to keep the A/F ratio normal.

[Paul_E_D]

In most cases, for the reasons Graham stated, stock motors will make best power on 89 pump fuel. Verified by BCM dynotesting with various octanes on stock Ducatis.

[xsiliconkid]

Spec fuel rule...(full rule book and race schedule can be found here).
http://www.nhms.com/events/lrrs/

Fuel
18.2.1 All riders must use an approved spec fuel.
18.2.2 NHMS/LRRS carries all approved fuels on
property, which can be purchased during race
events and during regular business hours during
non-LRRS events.
18.2.3 There are 5 Sunoco fuels that will be for sale at
NHMS prior to and during the events; Sunoco
93 Premium pump fuel; Sunoco Supreme (112
Octane, Leaded); Sunoco Standard (110 Octane)
and Sunoco 260 GT (100 octane, Unleaded);
and Sunoco 260 GTX (98 Octane, Unleaded).
37
Sunoco 260 GTX is the same fuel that AMA
uses.
18.2.4 There are 2 VP fuels approved and they will be
available for sale at the race track during the
events; VP C12 and VP Blaze 100.
18.2.5 Fines may be imposed for non-compliance and
severe penalties for using any non-approved
power enhancing fuels or additives.
18.2.6 The mixing of fuels is not allowed.