Thread: E85

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Originally Posted by Bob Parmenter

Unless unleaded regular in your area is only $1.20 per gallon the E85 isn't really cheaper after you factor in the 30% lower energy content. If Reg is around $2.50, the E85 would have to be around .80 less just to break even cost wise (not allowing for the higher octane)

As for the gaskets/elatomer materials, you may want to contact Holley to see when they upgraded their materials, assuming they have, your carb may be new enough you won't have to do all that.

The 30% really isn't accurate in a real world scenario. My own car actually increased the fuel mileage on E-85.....However it was probably a lot more to do with the dyno time on the tune up then the fuel switch. My big concern was never with the economics of it, but the 106 octane at the pump sure has given me a lot of very nice choices when building the engine...... Running 11.5 compression on fuel I can buy at the pump for 42 cents less then low octane regular is a huge plus for me...... BTW, both drag cars went all summer running E-90 with absolutely no problems related to the ethanol.... They are both big blocks, one running 9.90's, the othe 10.90's.....

Just curious, how do the rubber O rings on the needle and seat assembly hold up?