Race Fuel....

[135iDCT]

can i use c16 race fuel (117) octane...which map i should run? Map 5 or custom map?

if i use race fuel (100 - 104) octane. Dp,DCI,jb4...which map to run

how to do a custom map? what tools do i need

[Brian135i]

Don't use c16 or any race gas with lead. MS109 race gas is very good. You can run map #5 on it. IMO you don't need a custom tune. Just use one of the pre-set tunes.

[135iDCT]

ok but what if i use c16...is there any stress on the fuel pump
how many whp with this fuel it can do

[135iDCT]

also what's the difference between map 5 and 7? both are used for race fuel, what about the boost map 5,7??

[fullboost]

Originally Posted by 135iDCT

ok but what if i use c16...is there any stress on the fuel pump
how many whp with this fuel it can do

Not sure what the whp increase would be but C16 has a 10+ point higher motor octane rating than MS109. Since C16 is leaded there's always a possibility you can mess up the O2 sensor(s) on the exhaust side. I had a friend who used to run C16 quite a bit and would have to change his O2 sensor every 6 months or so.

[BFD99]

Originally Posted by 135iDCT

also what's the difference between map 5 and 7? both are used for race fuel, what about the boost map 5,7??

Read the JB4 userguide, it explains all of this.

[135iDCT]

Originally Posted by BFD99

Read the JB4 userguide, it explains all of this.

don't have it

[BFD99]

Next time, google is your friend, its on the Burger website.
http://www.n54tech.com/forums/showthread.php?t=10605