Fuel

[brad hibbard]

what have you been running for fuel?

what are the pro's and con's to it?

just trying to spark some good conversation that may help everyone compete a bit better in the future

Brad

https://www.race-1.com

[Racer63]

Ran the Sunoco 110 this year after years on Rat Man. Hendren changed a few things in my carb and I had zero issues all year contrary to all the doom and gloom that was predicted. I couldn't tell the difference from the seat.

Actually won 4 features and multiple heat races. This after only winning 1 feature in a crate late prior to this year.

[brad hibbard]

Congratulations on a great season Racer63

when the Sunoco fuels are mandated the 110 is our choice as well and we had very little issue with it
by the numbers the 91 worried me enough that we did not recommend it for use----I think in cool weather conditions that we will have from here on out the 91 may be fine but hot weather racing --I am all about the 110

has anyone tried the Sunoco EXO2 ???---the specs on that are very interesting and should produce power but I am just not sure how the drivability will be---it's not legal in all series but wherever CHP and ratman are legal it should fall inline as well

Brad

https://www.race-1.com

[rangerover]

On a 602 Crate in a B-mod, which would you prefer?
Sunoco 110
Sunoco 100
Mix of Sunoco 110 and 91 pump gas
We've been running the mix to get safer octane than plain pump gas, but I read a lot about that being a bad idea due to inconsistency with the pump gas. Straight 110 seems like too much octane for a 602. The 100 seems like the best choice, but it costs exactly the same as the 110, so we've been mixing the 110. With these choices, which would produce the best power?

[brad hibbard]

I personally am not a fan of any fuel that has been put into underground storage tanks (pump gas) but a careful mix of 110 and "GOOD" pump gas is a pretty good combination ---providing you are consistent in your mix and have properly calibrated your carb

now lets define "good" pump gas
it is nearly impossible to be sure if its good but some research and effort will usually get you in a good direction

1st find a quality name brand station (ie.Shell, BP, Exon, Sunoco etc.) that moves a high quantity of fuel
best way to do that is question the truck drivers---and while your talking to them ask them if there are any water issues.

next ---put 5 to 10 gallons of fuel in your vehicle before filling the fuel jugs
this flushes the blends of fuel from the line and gets you pulling directly from the premium tank

if the wallet can afford it I would run the 100 ---

Brad

https://www.race-1.com

[Racer111]

We run renegade e85

[bmchone]

Currently we don't have any fuel rules other than no E85... So we use the CHP crate fuel.. so.. with that in mind, which be best to use: CHP, Rate man or Sunoco 110 or Sunoco 110/mix? This is for a 604 crate. I will say this.. during a dyno session, we dyno'd the CHP against the Sonoco 100 and CHP was 18 HP better.. Surprised me and really surprised the dyno man.. Opinions...

[DEKconsulting]

What about vp 113 vs chp

[brad hibbard]

your numbers are very close to mine bmchone----there are some downsides to CHP but it is really hard to look past the power numbers

VP 113 and VP crate (same fuel) are off about 7 digits from CHP but the real difference is the acceleration rate

just like the power CHP makes it does have a good acceleration rate

it may sound like I am a CHP fan ---but I am exactly the opposite --I hate the stuff because of how nasty it is to be around and it is hard on the engine as well---storage is a real PIA also

when we take the time to tune the other fuels to the best of their capability --we get acceptable performance by comparison

that is our findings

Brad

https://www.race-1.com

[DEKconsulting]

Brad we r goin to charlotte for their crate race on oct 20-22 so it will only be for that race would go with chp or vp113 with others running chp

[brad hibbard]

with unpredictable and changing weather conditions its much easier to rely on CHP for good starts and best power.

still not a fan of the stuff but it does make life easier sometimes

Brad

https://www.race-1.com

[bmchone]

Why is the CHP harder on engine that any other fuel?

[brad hibbard]

it is very dry----we constantly have exhaust valve guide issues with it
also carburetor throttle shafts wear quicker and top ring land of the piston

the biggest problem is the valve guides

we recommend a lube be added to all fuels but especially CHP
the thing is --if you go crazy with the lube it causes other issues so only use as directed

Brad

https://www.race-1.com

[bmchone]

Is there a specific fuel lube that you recommend for the CHP? thanks

[brad hibbard]

I like driven (gibbs) carb defender
but Klotz upper lube works well even marvel mystery oil is good and you can get that at wallmart

Brad

https://www.race-1.com