Now back to the alcoholic. No, not me , the bike.
I'm leaning more towards 110-145 , Trick , VP 110 . When I can't find "good" fuel E85 is a good substitute without a jet change . Without something like Blendzall (castor plus long chain octane boosters and a methanol carrier) I'd have to change jets for straight Methanol . I don't have to tell any long time tuner of the XS that compression isn't the best direction to go in finding more area under the curve .
The cure to the self created symptom is three sets of carbs . One set for pump 92 , one for the race fuel and E85 and one for straight methanol . The rubber in the stock BS38's has enough issues with 10% let alone E85 . The Methanol just trashes everything unless dry (near zero water content) and the E85 works with nearly the same jetting with just a change in timing .
The real advantage to E85 if properly set up is cooling through latent heat of evaporation and easier starting than straight ethanol or methanol . E85 is a little easier to tune to because its rich symptoms are a bit more evident than straight ethanol or methanol . When using straight methanol additives need to be added to the fuel in order get any visual indicators on the plug .
The compression increase came by way of the bore increase and a significant dome on the Kawasaki (MTC K1327H)as well as careful adjustment of assembled height . With less than .050" piston to head clearance a substantial quench/squish area is gained along with the compression increase . You can always loose compression with the addition of base gasket and a cam adjustment within reason . I've run as little as .037" piston to head clearance on a fresh engine with only incidental contact with carbon deposits and saw evidence of the quench effect disappear around .055" . The final numbers aren't in yet but 12:1 plus or minus is the expected .
Keep in mind that this is an aberration , not a motorcycle . This is a hooligan , outlaw , full silly , nut case , animal in animal clothing . It is not practical transportation in any sense of the term . Its meant to shatter ear drums , make the eyes water , scare dogs , cats , children , and old ladies. "I want to kill. I want to kill! I want to see Blood and gore and guts and veins in my teeth! Eat dead, burnt bodies! I Mean: Kill. Kill!"
get the picture ?
I'm leaning more towards 110-145 , Trick , VP 110 . When I can't find "good" fuel E85 is a good substitute without a jet change . Without something like Blendzall (castor plus long chain octane boosters and a methanol carrier) I'd have to change jets for straight Methanol . I don't have to tell any long time tuner of the XS that compression isn't the best direction to go in finding more area under the curve .
The cure to the self created symptom is three sets of carbs . One set for pump 92 , one for the race fuel and E85 and one for straight methanol . The rubber in the stock BS38's has enough issues with 10% let alone E85 . The Methanol just trashes everything unless dry (near zero water content) and the E85 works with nearly the same jetting with just a change in timing .
The real advantage to E85 if properly set up is cooling through latent heat of evaporation and easier starting than straight ethanol or methanol . E85 is a little easier to tune to because its rich symptoms are a bit more evident than straight ethanol or methanol . When using straight methanol additives need to be added to the fuel in order get any visual indicators on the plug .
The compression increase came by way of the bore increase and a significant dome on the Kawasaki (MTC K1327H)as well as careful adjustment of assembled height . With less than .050" piston to head clearance a substantial quench/squish area is gained along with the compression increase . You can always loose compression with the addition of base gasket and a cam adjustment within reason . I've run as little as .037" piston to head clearance on a fresh engine with only incidental contact with carbon deposits and saw evidence of the quench effect disappear around .055" . The final numbers aren't in yet but 12:1 plus or minus is the expected .
Keep in mind that this is an aberration , not a motorcycle . This is a hooligan , outlaw , full silly , nut case , animal in animal clothing . It is not practical transportation in any sense of the term . Its meant to shatter ear drums , make the eyes water , scare dogs , cats , children , and old ladies. "I want to kill. I want to kill! I want to see Blood and gore and guts and veins in my teeth! Eat dead, burnt bodies! I Mean: Kill. Kill!"
get the picture ?
