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betasniper · 09-24-2013, 02:07 AM

They probably run a higher CR in their racing engines due to the higher octane rating of E85 which would improve torque and efficiency. Problem with flexfuel type cars for ordinary customers is that they can't bump the CR too much due to having to run also be able to run on Regular (or possibly Premium) gas.

Edit: It says that they do run a higher COMPRESSION (They said combustion) Ratio in the racecars and it does mention that the high CRs have to run E30+ exclusively.

09-24-2013, 02:07 AM	#4 (permalink)
betasniper EcoModding Lurker Join Date: Feb 2013 Location: California Posts: 79 Red - '01 Honda Insight CVT Gen-1 Insights House of Tudor Team Honda 90 day: 59.17 mpg (US) Civic Hybrid - '12 Honda Civic Hybrid Team Honda Bahamut - '18 Chevrolet Volt LT Team Volt Plug-in Hybrids Thanks: 6 Thanked 48 Times in 23 Posts	They probably run a higher CR in their racing engines due to the higher octane rating of E85 which would improve torque and efficiency. Problem with flexfuel type cars for ordinary customers is that they can't bump the CR too much due to having to run also be able to run on Regular (or possibly Premium) gas. Edit: It says that they do run a higher COMPRESSION (They said combustion) Ratio in the racecars and it does mention that the high CRs have to run E30+ exclusively. __________________ Saturn 1.9L DOHC BSFC Chart : Brothers : Dad's Last edited by betasniper; 09-24-2013 at 02:12 AM..