Fuel on high compression 20v

[4000GT]

Curious to know what fuel the high compression 20v guys are running E85 or E30 or a 98 RON mix etc... comp is nearly 15:1. Cheers!

[Celica RA45]

is that static or dynamic compression try 98 20 litres with 10 litres of ethonal or you can try e85 but you will have to test it .each time as the fuel over here does change from e 70 to e 90 during the year .and if you tune it on 1 ,you might need 2 fuel maps

[4000GT]

Not sure which my engine builder calculated, but assuming static as that makes the most sense. I might try 98 with octane booster as we dont have ethanol at the pump here yet, and prefer not to have drums of gas at home, but might have to.

[RT40Corona4AGTE]

add a % of toluene ? :-)

[mattysshop]

MS109 or Roo 5?

[4000GT]

I just heard aviation fuel is now legal again for motorsport here, might try that, 110 octane and cheap!

[sundee86]

^^ does E85 really fluctuate that much?

[4000GT]

I dont think E85 does, but 98 and Race Gas definitely does.