Race fuel

[Stickyrubber22]

Hey I am looking into running some VP gas this year but I don't know much about it. I'm looking into u4.4 or t4. I can't afford mr12. I'm just looking to get a few extra hp. Any recommendations? I have a stock motor sv650. Thanks

[trace33chargers]

Re: Race fuel

If you can afford it, use u4.4. It's the standard for a reason. I don't think many people get power from t4, they just get it to get away from ethanol.

[Renegade17]

Re: Race fuel

fix your overheating and chatter issues first and some decent gearing might be helpful too.

[Stickyrubber22]

Re: Race fuel

yeah I'm working on it haha aside from suspension/tires causing chatter, got any ideas what it might be?

[The Snowman]

Re: Race fuel

Is the motor set up for higher compression? If not, race fuel may be a waste of money.

[zoran]

Re: Race fuel

It does not matter, some of this race fuels work good without high compression. We use MR12

[Chris Burgess]

Re: Race fuel

It does not matter, some of this race fuels work good without high compression. We use MR12

That stuff is liquid gold!

[The Snowman]

Re: Race fuel

$30/gallon for 87 octane fuel? Yikes! (best price I found online was $148/5 gallons.

What are the advantages over something like Sunoco 260 GTX?

[trace33chargers]

Re: Race fuel

$30/gallon for 87 octane fuel? Yikes! (best price I found online was $148/5 gallons.

What are the advantages over something like Sunoco 260 GTX?

260 GTX isn't oxygenated and has a higher octane and contains no lead (no a big deal). Apples to oranges. I think 260 GT is a closer comparison.

[macop1104]

Re: Race fuel

$30/gallon for 87 octane fuel? Yikes! (best price I found online was $148/5 gallons.

What are the advantages over something like Sunoco 260 GTX?

MR12 is designed for superstockish motors with relatively low compression. That 87 is motor octane, not the R+M/2 used with pump gas. MR 12 is probably the highest HP producing fuel commonly found. I dyno tested it back to back with U4.4 and VPR and it beat both of them across the RPM range. 1.5 hp gain over u4.4
Don't get sucked into the octane number. Higher octane does not mean more power..

[BigSherm]

What VP fuel would you guys use if you can’t get MR12?
There are plenty of different VP fuels available where I live, just not MR12.

Thanks,
Sherm

[zoran]

Probably U4.4