Race fuel ?
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Joined: Jul 2014
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2011 Cadillac CTS-V
Race fuel ?
Thinking about switching over to race fuel (MS109) to run at all times in my E55. Since it is not my daily anymore, I'm not too worried about the price or the gas mileage. Wondering does anyone here run it all times? Is there a downside to it?
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Joined: Nov 2007
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From: San Diego
E55
I ran MS109 with 91 pump gas 60-40 mix and my car loved it. I don't see any downsides. Enjoy!
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From: Northern Va
Dirt Scooters
Down side is your pockets. I ran race gas (Q16 and a Q16 mix with another VP fuel) and didn't have a problem. In my gt500 I run only race gas and only problem so far is it just killed the o2 sensor. MS109 will require about 10% more fuel in the tune but the tuner can get pretty aggressive 21-23 degrees of timing.
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From: Florida-Germany-New York
2004 E55,1969 300SEL6.3,2011 ML350 BlueTec Diesel,2005 ML400 CDI
Most Aral (BP) stations here in Germany offer 102 octane at about $6.00/gallon. A bargain considering that one year ago it was selling for about $8.00/gallon. Too bad I will have to retune for Florida's 93 octane when I bring the car back.
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2011 Cadillac CTS-V
Made the switch yesterday, Jerry had the base tune literally on point!!! it still needs a bit of adjusting to get it perfected. hopefully by the end of this month I will get around to that.. Long story short, ended up going to the track and have ran my best pass on street tires 
I see tens in my near future on 16" DRs. Wanna also say thanks to HULK he has helped me a long way to get the car where it's at now!!! Thanks buddy were going tens soon
I see tens in my near future on 16" DRs. Wanna also say thanks to HULK he has helped me a long way to get the car where it's at now!!! Thanks buddy were going tens soon
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2015 E63S, 2018 E63S
Made the switch yesterday, Jerry had the base tune literally on point!!! it still needs a bit of adjusting to get it perfected. hopefully by the end of this month I will get around to that.. Long story short, ended up going to the track and have ran my best pass on street tires I see tens in my near future on 16" DRs. Wanna also say thanks to HULK he has helped me a long way to get the car where it's at now!!! Thanks buddy were going tens soon
I see tens in my near future on 16" DRs. Wanna also say thanks to HULK he has helped me a long way to get the car where it's at now!!! Thanks buddy were going tens soon 
you left a little on the table as LM7 said in regards to 60' which will also help you at the 1000' mark with et & mph. You got about .3 more to pick up and another 1-2mph at the 1000' keep at it and you'll get there. #hoosiers
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2011 Cadillac CTS-V
195mm crank pulley
630cc Bosch injectors
Killer chiller drag kit
Needswings cold air intake powder coated pearl white
Kleeman headers 3" X-pipe no cats or resonator stock axle back exhaust
Devilsown methanol injection with two nozzle set to come on at 10psi
Custom BBK 90mm TB kit ported and polished by stiegemier
FTP engine bay tank split cooling
Meziere wp136s intercooler pump
Eurocharged H/E
Eurocharged ECU tune
Weistec TCU tune
Stiegemier Ported & polished supercharger
3k stall TC
PTE 170f T-stat
Eurocharged BWK
Eurocharged built transmission
NGK colder step plugs
Magnacore 8.5 wires
FTP Transmission cooler
FTP oil catch can
I do actually i ran 11.28 @125mph... So I gained 4mph just by the switch, remember I'm still on street tires, obviously low psi but I lose time getting out of the hole, that's why my 60ft sucks.
630cc Bosch injectors
Killer chiller drag kit
Needswings cold air intake powder coated pearl white
Kleeman headers 3" X-pipe no cats or resonator stock axle back exhaust
Devilsown methanol injection with two nozzle set to come on at 10psi
Custom BBK 90mm TB kit ported and polished by stiegemier
FTP engine bay tank split cooling
Meziere wp136s intercooler pump
Eurocharged H/E
Eurocharged ECU tune
Weistec TCU tune
Stiegemier Ported & polished supercharger
3k stall TC
PTE 170f T-stat
Eurocharged BWK
Eurocharged built transmission
NGK colder step plugs
Magnacore 8.5 wires
FTP Transmission cooler
FTP oil catch can
I do actually i ran 11.28 @125mph... So I gained 4mph just by the switch, remember I'm still on street tires, obviously low psi but I lose time getting out of the hole, that's why my 60ft sucks.
