{"text_format":"1","workbook":"xlsx","n_sheets":1,"sheets":["Sheet1"],"not_rendered":{"charts":0,"images":6,"macros":1,"external_links":0,"defined_names":0,"comments":1,"pivot_tables":0},"unopened":[],"bounds":{"document_bytes":16777216,"sheet_cells":100000,"rows_first":2000,"rows_last":500,"rows_between":2000,"halvings":0,"cell_chars":16384,"cell_head_chars":4096},"cells_cut":0,"cells_raw":0,"read":"whole","date_system":"1900"}

{"sheet":"Sheet1","index":0,"n_rows":170,"n_cols":15,"rows_kept":170,"cut":false,"hidden":false,"merged":[[157,5,157,7],[164,5,164,7],[167,5,167,7],[0,1,1,4],[0,7,0,8],[1,7,1,9],[15,1,15,2],[15,5,15,6],[24,1,24,2],[26,9,26,12],[27,3,27,5],[27,9,27,12],[34,6,34,8],[25,7,25,8],[38,2,39,5],[40,0,40,1],[47,0,47,1],[1,12,1,14],[3,1,3,2],[3,5,3,7],[8,1,8,2],[8,5,8,6],[8,8,8,10],[53,1,53,2],[53,4,53,6],[53,7,53,8],[54,1,54,2],[55,4,55,5],[59,4,59,5],[56,4,56,5],[54,4,54,5],[59,1,59,2],[59,8,59,9],[60,4,60,6],[62,4,62,5],[64,1,64,2],[63,4,63,5],[61,4,61,5],[128,0,128,1],[129,2,129,3],[130,0,130,1],[137,0,137,1],[66,4,66,5],[68,4,68,6],[69,1,69,2],[75,1,75,2],[84,5,84,6],[65,12,65,13],[66,12,66,13],[162,0,162,1],[162,2,162,4],[148,8,148,9],[86,1,86,2],[91,4,91,5],[95,1,95,2],[144,0,144,1],[153,1,153,2],[137,9,137,11],[95,8,95,9],[95,11,95,13],[98,0,98,2],[100,5,100,6],[114,2,114,3]]}
[null,"2 Stroke Calculators",null,null,null,"web page",null,"(data entry cells are light blue)"]
[null,null,null,null,null,"by Michael Forrest",null,"(distances are in millimeters unless stated otherwise)",null,null,null,null,"Longer Stinger Diameter"]
[null,null,null,null,null,"updated Dec 9 '23",null,null,null,"meters","feet",null,"mm length","inner diameter","C.S. area"]
["vertical ring mm","Safe Top RPM",null,null,null,"Cranking Engine PSI",null,null,null,2,{"$f":"J4/0.3048","v":6.561679790026246},"original dimensions:",100,26.6,{"$f":"3.14*(N4/2)^2","v":555.43460000000005}]
[1.75,null,"average piston m/sec velocity","max allow-",{"$f":"((25*60)/B7)*500","v":18115.942028985508},"engine ",null,null,null,null,"millimeters"]
["top RPM","piston stroke",{"$f":"((2*(A7/1000)*B7)/60)","v":17.939999999999998},"able RPM",{"$f":"(38.5/A5)*A7/C6","v":15942.028985507248},"compr ratio","feet elevation","cranking psi",null,"inches"," (mm)",null,"new longer length","new diameter","C. S. area"]
[13000,41.4,"maximum piston m/sec velocity",{"$f":"IF(E6<E5,E6,E5)","v":15942.028985507248},null,7,0,{"$f":"((((F7-6)*34.8)+121)*(1-(0.14-(8-F7)*0.02)))/(1+G7*0.000075)","v":137.10400000000001},null,1,{"$f":"J7*25.4","v":25.4},"new dimensions:",400,{"$f":"IF(M7>200,N9,M9)","v":35.786639965216068},{"$f":"3.14*(N7/2)^2","v":1005.3366259999999}]
[null,null,{"$f":"C6*1.61","v":28.883399999999998},null,null,null,null,null,null,null,null,null,{"$f":"(1+(((M7/M4)-1)*0.22))*O4","v":922.02143600000011},{"$f":"(1+(((M7/M4)-1)*0.27))*O4","v":1005.3366260000001}]
["trapped cc","engine compression ratio",null,null,null,"head volume",null,null,"Maximum Delivery Ratio RPM",null,null,null,{"$f":"2*SQRT(M8/3.14)","v":34.271702613088834},{"$f":"2*SQRT(N8/3.14)","v":35.786639965216068}]
["above exhaust",null,"engine",null,"above exhaust","engine","above",null,null,"crankcase","mm from top",null,null,"maximum"]
["port (ml)","above TDC cc","compression ratio",null,"port cc (ml)","compr ratio","TDC cc",null,"cylinder","compression","of transfers","Intake","Crankcase","delivery"]
[72.5,8.4,{"$f":"A12/B12","v":8.6309523809523814},null,60,7.1,{"$f":"E12/F12","v":8.4507042253521139},null,"bore mm","ratio","to TDC","Volume cc","Volume cc","ratio RPM"]
["(same in oz.)","(same in oz.)","Compression Ratio",null,null,null,null,null,40,1.1000000000000001,32,{"$f":"(3.14*(I13/20)^2)*(K13/10)","v":40.192000000000007},{"$f":"L13/(J13-1)","v":401.91999999999973},{"$f":"SQRT(K13/M13)*19813","v":5590.5613772445859}]
[2.0299999999999998,0.28999999999999998,{"$f":"A14/B14","v":7},null,null,null,null,null,null,"Crankcase PSI max"]
[null,null,null,null,null,null,null,null,null,{"$f":"((J13-1)/5.5)*80","v":1.4545454545454559}]
[null,"Mikuni jet crossover",null,null,null,"trapped engine volume"]
["Mikuni 4/042","equivalent",null,null,"above exhaust","mm piston edge",null,null,"trapped","piston dome","above piston cc","engine"]
[" main jet","N100.64 jet","hole diameter",null,"port mm","to cylinder top","cylinder bore","head cc","engine cc","cc volume"," @ TDC ","compr ratio","feet elevation","cranking psi"]
[150,{"$f":"(2*SQRT((A19*0.00772)/3.14))/0.01066","v":113.93633533464265},{"$f":"2*SQRT(((A19/80)*0.5)/3.14)","v":1.09282547367984},null,24.1,1,40,4.4000000000000004,{"$f":"K21+K22+K23+K25-K24","v":33.869600000000005},{"$f":"SUM(H27:I27)","v":0.8},{"$f":"K21+K22+K23-K24","v":4.8560000000000008},{"$f":"I19/K19","v":6.9747940691927512},0,{"$f":"((((L19-6)*34.8)+121)*(1-(0.14-(8-L19)*0.02)))/(1+M19*0.000075)","v":136.41019305944647}]
[null,null,null,null,null,null,null,"head gasket",null,null,"cc volume"]
["Mikuni N100.64","equivalent",null,null,"ounces","cubic centimeters",null,"mm thickness",null,null,{"$f":"H19","v":4.4000000000000004},"head"]
["main jet","4/042 jet","hole diameter",null,1,{"$f":"E22*29.57","v":29.57},null,0,null,null,{"$f":"3.14*(G19/20)^2*(H22/10)","v":0},"gasket"]
[114,{"$f":"((((A23*0.01066)/2)^2)*3.14)/0.00772","v":150.16767904352329},{"$f":"A23*0.0096","v":1.0943999999999998},null,null,null,null,"piston dome","raised flat piston ",null,{"$f":"3.14*(G19/20)^2*(F19/10)","v":1.2560000000000002},"deck "]
[null,null,null,null,"cc","ounces",null,"mm height","top mm height",null,{"$f":"J19","v":0.8},"piston dome"]
[null,"engine size (conventional)",null,null,30,{"$f":"E25/29.57","v":1.0145417653026716},null,0,0.5,null,{"$f":"((E19-F19)/10)*3.14*(G19/20)^2","v":29.0136},"port to TDC"]
["cyl bore mm","stroke mm","cc size",null,null,null,null,"(Only fill in one of the two above)"]
[40,6.6,{"$f":"0.785*((A27/10)^2)*(B27/10)","v":8.2896000000000001},null,null,null,null,{"$f":"(3.14*(H25/10)*(3*(G19/20)^2+(H25/10)^2))/6","v":0},{"$f":"((G19/10)^2)*(I25/10)","v":0.8},"This chart shows what the bike manufacturers went by, increasing the velocity for small engines "]
[null,null,null,"Carb Air Speed & Size Calculator",null,null,"website page",null,null,"to emphasize mid range power so the engine could carry the RPM up to the pipe powerband."]
[null,null,null,"mm carb","Intake","Carb Flow",null,null,"mm ideal"]
["engine cc","transfer duration","max RPM","diameter","Volume L/min","Velocity m/sec","type of riding","ideal velocity","carb diameter"]
[250,125,8000,38,{"$f":"(A31*B33*C31)/1000","v":1552},{"$f":"(E31*0.167)/D34","v":22.865006969317363},"enduro/street",{"$f":"H32+15","v":38.942857142857143},{"$f":"20*SQRT(((E31*0.167)/H31)/3.14)","v":29.117585535244402}]
["cylinder bore","vol. efficiency",null,"cm^2 carb",{"$f":"(A31*B33*1250)/1000","v":242.5},null,"racing",{"$f":"18*((A31*B33)/C31-0.00886)/0.0399+17","v":23.942857142857143},{"$f":"20*SQRT(((E31*0.167)/H32)/3.14)","v":37.134816184626388}]
[66,{"$f":"IF(B31>125,0.776-(B31-125)*0.0036,IF(B31>120,0.793-(B31-120)*0.0034,IF(B31>115,0.809-(B31-115)*0.0033,IF(B31>110,0.825-(B31-110)*0.0032,IF(B31>105,0.84-(B31-105)*0.003,0.84+(105-B31)*0.0028)))))","v":0.77600000000000002},null,"area",null,null,null,"% cutaway","max carb size"]
["compression ratio","ft elevation","cranking PSI",{"$f":"3.14*(D31/20)^2","v":11.3354},null,null,null,10,{"$f":"SQRT(((0.167*A31*B33*C31)/(((H34-10)*0.52+14.2)*1000))/3.14)*20","v":48.219765440464343}]
[8.5,500,{"$f":"((((A35-6)*34.8)+121)*(1-(0.14-(8-A35)*0.02)))/(1+B35*0.000075)","v":170.40963855421683},"idle slide area","idle slide height",null,"This figures in the bore and compression ratio:"]
[null,null,{"$f":"(((78.1-A33)*0.004)+1)*IF(A35<8,A35/9.9,IF(AND(A35>=8,A35<10),A35/9.3,IF(AND(A35>=10,A35<12),A35/8.55,IF(A35>=12,A35/7.5,0))))","v":0.95821505376344085},{"$f":"0.516*E32","v":125.13000000000001},{"$f":"IF(AND(D37>0.026,D37<=0.0723),((D37-0.0463)/0.0273)*0.0315+0.0625,IF(AND(D37>0.0723,D37<=0.0996),((D37-0.0723)/0.0273)*0.0315+0.125,IF(AND(D37>0.0996,D37<=0.129),((D37-0.0996)/0.0294)*0.0315+0.156,IF(AND(D37>0.129,D37<=0.162),((D37-0.129)/0.033)*0.0315+0.1875,IF(AND(D37>0.162,D37<=0.196),((D37-0.162)/0.034)*0.0315+0.219,IF(AND(D37>0.196,D37<=0.268),((D37-0.196)/0.072)*0.0315+0.25,0))))))*D31","v":6.3672539629328107},null,"type of riding","ideal velocity","carb diameter"]
[null,null,null,{"$f":"D36/(D34*100)","v":0.1103886938264199},null,null,"enduro/street",{"$f":"H38+15","v":37.942406144393246},{"$f":"20*SQRT(((E31*0.167)/H37)/3.14)","v":29.49896858670445}]
[null,null,null,null,null,null,"racing",{"$f":"C36*H32","v":22.942406144393242},"see web page"]
["piston stroke",50,"Hot Port Durations Calculator",null,null,null,null,null,{"$f":"20*SQRT(((E31*0.167)/H38)/3.14)","v":37.935846889145971}]
["Con Rod mm",110,null,null,null,null,"website page"]
["Above Port mm",null,"exhaust",{"$f":"(1-(B40/B39-2.1)*0.0577)","v":0.99422999999999995},"exhaust",{"$f":"(1-(B40/B39-2.1)*0.0577)","v":0.99422999999999995},"transfers",{"$f":"(1-(B40/B39-2.1)*0.0296)","v":0.99704000000000004}]
["cold","hot","duration","above port","duration","above port","duration","above port"]
["exhaust cold","exhaust hot",205,{"$f":"0.4494*D41*B39","v":22.3403481},207.5,{"$f":"0.4382*B39*F41","v":21.7835793},130,{"$f":"0.761*B39*H41","v":37.937371999999996}]
[27.85,{"$f":"A44+(9.6*B40+6.5*B39)/5445","v":28.10362718089991},200,{"$f":"0.4717*D41*B39","v":23.448914549999998},202.5,{"$f":"0.4605*B39*F41","v":22.892145750000001},127.5,{"$f":"0.7694*B39*H41","v":38.3561288}]
["transfers cold","transfers hot",195,{"$f":"0.4941*D41*B39","v":24.562452149999999},197.5,{"$f":"0.4829*B39*F41","v":24.005683349999998},125,{"$f":"0.778*B39*H41","v":38.784855999999998}]
[39,{"$f":"A46+(9.6*B40+6.5*B39)/5445","v":39.253627180899905},190,{"$f":"0.5162*D41*B39","v":25.661076299999998},192.5,{"$f":"0.5051*B39*F41","v":25.109278649999997},122.5,{"$f":"0.7865*B39*H41","v":39.208597999999995}]
[null,null,185,{"$f":"0.5385*D41*B39","v":26.769642749999999},187.5,{"$f":"0.5273*B39*F41","v":26.212873949999999},120,{"$f":"0.795*B39*H41","v":39.632339999999999}]
["Estimated Durations",null,180,{"$f":"0.5604*D41*B39","v":27.8583246},182.5,{"$f":"0.5494*B39*F41","v":27.311498099999998},117.5,{"$f":"0.8034*B39*H41","v":40.051096800000003}]
["exhaust cold","exhaust hot",175,{"$f":"0.582*D41*B39","v":28.932092999999998},177.5,{"$f":"0.5712*B39*F41","v":28.395208800000002},115,{"$f":"0.8114*B39*H41","v":40.4499128}]
[{"$f":"IF(AND(A44>D43,A44<=D44),205-((A44-D43)/(D44-D43))*5,IF(AND(A44>D44,A44<=D45),200-((A44-D44)/(D45-D44))*5,IF(AND(A44>D45,A44<=D46),195-((A44-D45)/(D46-D45))*5,IF(AND(A44>D46,A44<=D47),190-((A44-D46)/(D47-D46))*5,IF(AND(A44>D47,A44<=D48),185-((A44-D47)/(D48-D47))*5,IF(AND(A44>D48,A44<=D49),180-((A44-D48)/(D49-D48))*5,IF(AND(A44>D49,A44<=D50),175-((A44-D49)/(D50-D49))*5,IF(AND(A44>D50,A44<=D51),170-((A44-D50)/(D51-D50))*5,IF(AND(A44>D51,A44<=D52),165-((A44-D51)/(D52-D51))*5,0)))))))))","v":180.03823247351832},{"$f":"IF(AND(B44>D43,B44<=D44),205-((B44-D43)/(D44-D43))*5,IF(AND(B44>D44,B44<=D45),200-((B44-D44)/(D45-D44))*5,IF(AND(B44>D45,B44<=D46),195-((B44-D45)/(D46-D45))*5,IF(AND(B44>D46,B44<=D47),190-((B44-D46)/(D47-D46))*5,IF(AND(B44>D47,B44<=D48),185-((B44-D47)/(D48-D47))*5,IF(AND(B44>D48,B44<=D49),180-((B44-D48)/(D49-D48))*5,IF(AND(B44>D49,B44<=D50),175-((B44-D49)/(D50-D49))*5,IF(AND(B44>D50,B44<=D51),170-((B44-D50)/(D51-D50))*5,IF(AND(B44>D51,B44<=D52),165-((B44-D51)/(D52-D51))*5,0)))))))))","v":178.8577491156384},170,{"$f":"0.6035*D41*B39","v":30.000890250000001},172.5,{"$f":"0.5927*B39*F41","v":29.464006049999998},112.5,{"$f":"0.8193*B39*H41","v":40.843743600000003}]
["transfers cold","transfers hot",165,{"$f":"0.6246*D41*B39","v":31.0498029},167.5,{"$f":"0.614*B39*F41","v":30.522860999999999},110,{"$f":"0.827*B39*H41","v":41.227603999999992}]
[{"$f":"IF(AND(A46>H43,A46<=H44),130-((A46-H43)/(H44-H43))*2.5,IF(AND(A46>H44,A46<=H45),127.5-((A46-H44)/(H45-H44))*2.5,IF(AND(A46>H45,A46<=H46),125-((A46-H45)/(H46-H45))*2.5,IF(AND(A46>H46,A46<=H47),122.5-((A46-H46)/(H47-H46))*2.5,IF(AND(A46>H47,A46<=H48),120-((A46-H47)/(H48-H47))*2.5,IF(AND(A46>H48,A46<=H49),117.5-((A46-H48)/(H49-H48))*2.5,IF(AND(A46>H49,A46<=H50),115-((A46-H49)/(H50-H49))*2.5,IF(AND(A46>H50,A46<=H51),112.5-((A46-H50)/(H51-H50))*2.5,IF(AND(A46>H51,A46<=H52),110-((A46-H51)/(H52-H51))*2.5,0)))))))))","v":123.73068990093026},{"$f":"IF(AND(B46>H43,B46<=H44),130-((B46-H43)/(H44-H43))*2.5,IF(AND(B46>H44,B46<=H45),127.5-((B46-H44)/(H45-H44))*2.5,IF(AND(B46>H45,B46<=H46),125-((B46-H45)/(H46-H45))*2.5,IF(AND(B46>H46,B46<=H47),122.5-((B46-H46)/(H47-H46))*2.5,IF(AND(B46>H47,B46<=H48),120-((B46-H47)/(H48-H47))*2.5,IF(AND(B46>H48,B46<=H49),117.5-((B46-H48)/(H49-H48))*2.5,IF(AND(B46>H49,B46<=H50),115-((B46-H49)/(H50-H49))*2.5,IF(AND(B46>H50,B46<=H51),112.5-((B46-H50)/(H51-H50))*2.5,IF(AND(B46>H51,B46<=H52),110-((B46-H51)/(H52-H51))*2.5,0)))))))))","v":122.2343361001511},160,{"$f":"0.6458*D41*B39","v":32.103686699999997},162.5,{"$f":"0.6352*B39*F41","v":31.576744799999997},107.5,{"$f":"0.8347*B39*H41","v":41.611464400000003}]
[]
[null,"NEEDLE CALCULATOR",null,null,"Engine Oil Weight Calculator, Grams",null,null,"Liters Gasoline Calculator"]
["(Start diameters","Taper Angle Finder",null,"measured","Engine Oil",null,"SynPlus","measured grams of"]
["are \"up\" on the","length between dia's","start diameter (bigger)","oil density","grams of a volume of water",null,74,"gasoline per liter",710,"NOTES :","ENGINE OIL","Gas/Oil Ratio","Oil Density"]
["needle and \"end\"",6,2.13,{"$f":"G57/G56","v":0.95945945945945943},"grams of same volume of oil",null,71,null,null,null,"pure castor","50/1",0.96]
["diameters are","end diameter","taper angle (full)",null,"oil density","gas/oil ratio",40,"grams gasoline",280,null,"SynPlus","30 @ 7000",0.78]
["down from there.)",1.8049999999999999,{"$f":"DEGREES(ATAN((C57-B59)/B57))","v":3.1004914498077794},null,0.8,"liters gasoline",0.39,"liters gasoline",{"$f":"(I58/(I56/1000))/1000","v":0.39436619718309862},null,"Castor 927","44 @ 7300",0.97]
[null,"End Diameter Finder",null,null,"needed grams engine oil",null,{"$f":"((I56/1000)/E59)*((G59*1000)/G58)","v":8.6531249999999993},null,"Blowdown Calculator",null,"Motul 510","28 @ 7300",0.87]
[null,"taper degrees","start diameter",null,"Engine Oil Weight Calculator, Ounces",null,null,null,"exhaust duration",178,"Super M","40 @ 7300",0.86]
[null,2,2.72,"Measured","Engine Oil",null,"SynPlus",null,"transfer duration",120,"Motul 710 ","35 @ 7300",0.86]
[null,"segment length","end of segment dia.","Oil Density","weighed ounces of a volume of water",null,2.8,null,"peak power RPM",8000,"Golden Spectro","45 @ 7800",0.89]
[null,0.62,{"$f":"C62-2*TAN(RADIANS((B62)/2))*B64","v":2.6983557194890104},{"$f":"G64/G63","v":0.92857142857142871},"weighed ounces of same volume of oil",null,2.6,null,"1 or 3 port exhaust?",1,"Redline Allsport","40 @ 7800",0.86]
[null,"Taper Length Finder",null,null,"oil density","gas/oil ratio",30," ? Grams of","existing blowdown",{"$f":"(J61-J62)/2","v":29},"exhaust duration","transfer duration"]
[null,"taper degrees","start diameter",null,0.93,"gallons gasoline",0.25,"1 ltr water","needed best blowdown",{"$f":"IF(J64=1,(J63-7500)/600+32.5,(J63-6750)/800+26.25)","v":33.333333333333336},{"$f":"(J66*2)+J62","v":186.66666666666669},{"$f":"J61-(J66*2)","v":111.33333333333333},"Change to this exhaust or transfer duration"]
[null,1.57,2.67,null,"needed weighed ounces engine oil",null,{"$f":"(G63/G64)*((G66*128)/G65)","v":1.1487179487179486},null,"needed so-so blowdown",{"$f":"IF(J64=1,(J63-5250)/800+26.25,(J63-3500)/IF(J63>5000,800,400)+17.5)","v":29.6875},{"$f":"(J67*2)+J62","v":179.375},{"$f":"J61-(J67*2)","v":118.625}," (keeping the other existing one the same)"]
[null,"end diameter","length between diameters"]
[null,2.5150000000000001,{"$f":"(C67-B69)/TAN(RADIANS(B67))","v":5.6551738733667767},null,"Motorized Bicycle (Grubee 2 stroke) RPM Calculator",null,null,null,"Mikuni Main Jet","Mikuni Idle Jet","Keihin Main Jet","Keihin Idle Jet","Dellorto Jet"]
[null,"Start Diameter Finder",null,null,"max MPH",22.5,null,null," Size Calculator","Size Calculator","Size Calculator","Size Calculator","Size Calculator"]
[null,"taper degrees","end diameter",null,"rear sprocket teeth",56,null,null,"4/042 main jet #","22/210 Idle Jet","Main Jet #","Idle Jet #","Main or Idle Jet #"]
[null,1,2.105,null,"ft tire circumference",6.66,null,null,73,7.5,160,70,150]
[null,"segment length","start diameter",null,"max RPM",{"$f":"(F70*5280*F71)/(2.43*60*F72)","v":6851.2957401846279},null,null,"N100/604 Main Jet","hole diameter","hole diameter","hole diameter","hole diameter"]
[null,7.5,{"$f":"2*TAN(RADIANS((B72)/2))*B74+C72","v":2.235903016861382},null,null,null,null,null,0,{"$f":"2*SQRT(((J72/80)*0.5)/3.14)","v":0.24436320466915298},{"$f":"IF(K72>90,(90+((K72-90)*0.81))/100,IF(K72=90,0.9,IF(K72<90,(90-((90-K72)*0.81))/100,0)))","v":1.4669999999999999},{"$f":"L72*0.01","v":0.70000000000000007},{"$f":"M72*0.01","v":1.5}]
[null,null,null,null,"max KPH",46.2,null,null,"mm hole diameter","hole area","hole area","hole area","hole area"]
[null,"Motorized Bicycle (Grubee 2 stroke) Speed Calculator",null,null,"rear sprocket teeth",44,null,null,{"$f":"IF(AND(I72>0,I74>0),0,IF(I72>0,2*SQRT((I78)/3.14),I74*0.0096))","v":0.76237142593541796},{"$f":"(((2*SQRT(((J72/80)*0.5)/3.14))/2)^2)*3.14","v":4.6875000000000007E-2},{"$f":"3.14*(K74/2)^2","v":1.6893898649999999},{"$f":"((L74/2)^2)*3.14","v":0.3846500000000001},{"$f":"((M74/2)^2)*3.14","v":1.7662500000000001}]
[null,"max RPM",9000,null,"meters tire circ.",2.0299999999999998,null,null,"main jet hole area"]
[null,"rear sprocket teeth",44,null,"max RPM",{"$f":"(F75*1000*F76)/(2.43*60*F77)","v":6868.1708528451827},null,null,{"$f":"IF(AND(I72>0,I74>0),0,IF(I72>0,(I72/80)*0.5,((I76/2)^2)*3.14))","v":0.45624999999999999}]
[null,"feet tire circumference",6.66]
[null,"max MPH",{"$f":"(C77*0.243*(10/C78)*60*C79)/5280","v":37.61730371900827},null,"MPH to KPH",null,"KPH to MPH"]
[null,null,null,null,"mph",60,"kph",96.5]
[null,"max RPM",7300,null,"kph",{"$f":"F81*1.609","v":96.539999999999992},"mph",{"$f":"H81*0.621","v":59.926499999999997}]
[null,"rear sprocket teeth",44]
[null,"meters tire circumference",2.0299999999999998]
[null,"max KPH",{"$f":"(C82*0.243*(10/C83)*60*C84)/1000","v":49.104777272727262},null,null,"Pipe Radius Calculator",null,"(see video)"]
[null,null,null,null,null,"belly length in mm",220]
[null,"Pipe Powerband RPM Calculator",null,null,null,"pipe angle",60]
[null,"exhaust port duration",175,null,null,"radius in mm",{"$f":"G86/RADIANS(G87)","v":210.08452488130186}]
["millimeters ==>","piston to end of belly mm",670]
[null,"end of powerband RPM",{"$f":"(C88*40800)/C89","v":10656.716417910447}]
[null,"start of powerband RPM",{"$f":"0.73*C90","v":7779.4029850746265}]
[null,"exhaust port duration",184,null,"Pipe Cone Angle Calculator",null,null,"(from center)"]
["inches ==>","piston to end of belly inches",23,null,"cone length mm","small end dia.","large end dia.","cone angle"]
[null,"end of powerband RPM",{"$f":"(C92*1606)/C93","v":12848},null,220,9.5,70,{"$f":"DEGREES(ATAN(((G94-F94)/2)/E94))","v":7.8290765100596076}]
[null,"start of powerband RPM",{"$f":"0.73*C94","v":9379.0399999999991}]
[null,"Pipe Cone Pattern Maker",null,null,null,null,null,null,"Needle Shroud Calculator",null,null,"Equivalent Compression Ratio Calculator"]
["large diameter mm","small end diameter","pipe angle from center","length a","length b","length of chord","angle A",null,"shroud height","% jetting change",null,"full stroke","170* exhaust above","180* exhaust above"]
[70,25,8,{"$f":"((A98/2)/SIN(RADIANS(C98)))-D99","v":89.816206679096496},{"$f":"D98+D99","v":251.48537870147018},{"$f":"2*D99*SIN(RADIANS((360*(A98*3.14)/(6.28*D99))/2))","v":203.3450941520025},{"$f":"360*(A98*3.14)/(6.28*D99)","v":77.93693653763664},null,"+3mm height",{"$f":"(K98/K101)-1","v":0.29032258064516125},{"$f":"(J101+3)*18+78","v":240},"Compression Ratio","port Compr. Ratio","port Compr. Ratio"]
["(Dimeters are inner diameters plus sheet metal thickness)",null,null,{"$f":"((A98-B98)/2)/SIN(RADIANS(C98))","v":161.66917202237369},null,null,null,null,"+2mm height",{"$f":"(K99/K101)-1","v":0.19354838709677424},{"$f":"(J101+2)*18+78","v":222},14,{"$f":"(L99-1)*0.6","v":7.8},{"$f":"(L99-1)*0.558","v":7.2540000000000004}]
[null,null,null,null,null,null,null,null,"+1mm height",{"$f":"(K100/K101)-1","v":9.6774193548387011E-2},{"$f":"(J101+1)*18+78","v":204},null,"190* exhaust above","200* exhaust above"]
[null,null,null,null,null,"BlowDown Calculator",null,null,"current shroud height",6,{"$f":"J101*18+78","v":186},null,"port Compr. Ratio","port Compr. Ratio"]
[null,null,null,null,null,"peak power RPM",8000,null,"-1mm height",{"$f":"IF(J101>0,(K102/K101)-1,\" \")","v":-9.6774193548387122E-2},{"$f":"(J101-1)*18+78","v":168},null,{"$f":"(L99-1)*0.514","v":6.6820000000000004},{"$f":"(L99-1)*0.468","v":6.0840000000000005}]
[null,null,null,null,null,"exhaust port duration",180,null,"-2mm height",{"$f":"IF(J101>1,(K103/K101)-1,\" \")","v":-0.19354838709677424},{"$f":"(J101-2)*18+78","v":150}]
[null,null,null,null,null,"transfer port duration",115,null,"-3mm height",{"$f":"IF(J101>2,(K104/K101)-1,\" \")","v":-0.29032258064516125},{"$f":"(J101-3)*18+78","v":132}]
[null,null,null,null,null,"blowdown time (ms)",{"$f":"1000*((G103-G104)/(2*360))*(60/G102)","v":0.67708333333333326}]
[null,null,null,null,null,"blowdown degrees",{"$f":"(G103-G104)/2","v":32.5}]
[]
[null,null,null,null,null,"new peak power RPM",9000]
[null,null,null,null,null,"needed blowdown deg",{"$f":"0.36*G105/(60/G108)","v":36.562499999999993}]
[null,null,null,null,null,"needed exh/transfer"]
[null,null,null,null,null,"additional separation",{"$f":"G109-((G103-G104)/2)","v":4.0624999999999929}]
[null,null,null,null,null,"needed exh duration",{"$f":"G103+G111","v":184.0625}]
[]
[]
[null,null,"Resonant Intake Length Calculator"]
[null,{"$f":"IF(AND(D116<3,D119>10000),0.4,IF(D116<3,0.6-(D119-6000)*0.00005,1.3-(D119-6000)*0.00002))","v":0.52},"How many diffuser cones? (1/2/3)",2]
[null,null,"peak exhaust gas temp celcius",575]
[null,null,"cylinder bore mm",40]
[null,{"$f":"1/(D119/60)","v":7.8947368421052634E-3},"top RPM",7600]
[null,{"$f":"((D120/2)/360)*B119","v":2.0285087719298244E-3},"hot exhaust duration",185]
[null,{"$f":"((D121/2)/360)*B119","v":1.25E-3},"hot transfer duration",114]
[null,null,"mm piston to diffuser",450]
[null,null,"with boost port? (Y/N)","Y"]
[null,{"$f":"IF(D116=2,171*(B126-((D122*2)/((D117-30)*0.4+343))-(D118*IF(D123=\"Y\",1,3.4))/343-B116*2),0)","v":88.511758235761761},"Ideal Intake Length mm",{"$f":"171*(B126-((D122*2)/((D117-30)*0.4+343))-(D118*IF(D123=\"Y\",1,3.4))/343-B116)","v":177.43175823576175}]
[null,null,"Start Reversion Wave Return",{"$f":"(D122*2)/(((D117-30)*0.4+343))+(D118*IF(D123=\"Y\",1,3.4))/343+D124/171","v":2.758508771929824}]
["EO to Trans Close",{"$f":"(B120+B121)*1000","v":3.278508771929824},"Peak Reversion Wave Return",{"$f":"D125+B116","v":3.278508771929824}]
[null,null,"current intake length mm",125]
[null,null,"Peak Reversion Wave Return",{"$f":"((D122*2)/((D117-30)*0.4+343))+(D118*IF(D123=\"Y\",1,3.4))/343+D127/171+B116","v":2.9718903027148431}]
["All my 2 stroke calculators"]
[null,null,"NEEDLE ANGLE FINDER"]
["Needle Diameters Every 3mm",null,null,null,null,null,null,null,null,null,null,null,"(end of taper dia.)"]
["Dia. 1","Dia. 2","Dia. 3","Dia. 4","Dia. 5","Dia. 6","Dia. 7","Dia. 8","Dia. 9","Dia. 10","Dia. 11","Dia. 12","Dia. 13"]
[2.5099999999999998,2.41,2.57,2.57,2.5299999999999998,2.4900000000000002,2.4500000000000002,2.41,2.37,2.2799999999999998,2.19,2.0699999999999998,1.95]
["ANGLES -->",{"$f":"DEGREES(ATAN((A133-B133)/3))","v":1.9091524329963694},-3.0528825147924223,0,0.76389846092999569,0.76389846092998726,0.76389846092999569,0.76389846092999569,0.76389846092999569,1.7183580016554629,1.7183580016554547,2.2906100426385319,2.2906100426385274,{"$f":"M134","v":2.2906100426385274}]
[null,{"$f":"(6*TAN(RADIANS((D134)/2))+C133-B133)/(-2*TAN(RADIANS((B134)/2))+2*TAN(RADIANS((D134)/2)))","v":-4.8013329631685897},0.60031970176366278,-1.3332740795621347E-4,{"$error":"#DIV/0!"},-12055623884.799999,{"$error":"#DIV/0!"},2.9998933034144062,-1.214902178780461E-3,2.9979740386992044,-4.8005997091933898E-3,628363684747.63635]
["TRANSITION -->",{"$f":"IF(OR(B135<=0,B135>=3),\"\",B135)","v":""},0.60031970176366278,"",{"$error":"#DIV/0!"},"",{"$error":"#DIV/0!"},2.9998933034144062,"",2.9979740386992044,"",""]
[]
["Needle Diameters Every 5mm",null,null,null,null,null,null,"(end of taper dia.)",null,"NEW JET DIAMETER CALCULATOR"]
["Dia. 1","Dia. 2","Dia. 3","Dia. 4","Dia. 5","Dia. 6","Dia. 7","Dia. 8",null,"Previous Carb Dia.","Previous M. Jet Dia.","Previous Idle Jet Dia."]
[2.5150000000000001,2.5150000000000001,2.4,2.1,1.8,1.5,1.2,0.9,null,20,0.74,0.51]
["ANGLES -->",{"$f":"DEGREES(ATAN((A140-B140)/5))","v":0},1.3175706299449843,3.4336303624505198,3.4336303624505229,3.4336303624505229,3.4336303624505229,3.4336303624505211,{"$f":"H141","v":3.4336303624505211},{"$f":"3.14*(J140/2)^2","v":314},{"$f":"3.14*(K140/2)^2","v":0.42986599999999997},{"$f":"3.14*(L140/2)^2","v":0.20417850000000001}]
[null,{"$f":"(10*TAN(RADIANS((D141)/2))+C140-B140)/(-2*TAN(RADIANS((B141)/2))+2*TAN(RADIANS((D141)/2)))","v":3.0816098830451026},-7.294218644017701E-3,-5548745427565.7139,{"$error":"#DIV/0!"},9710304498248,9710304498248,null,null,"New Carb Dia.","New M. Jet Dia.","New Idle Jet Dia."]
["TRANSITION -->",{"$f":"IF(OR(B142<=0,B142>=3),\"\",B142)","v":""},"","",{"$error":"#DIV/0!"},"","",null,null,24,{"$f":"2*SQRT(K144/3.14)","v":0.88800000000000001},{"$f":"2*SQRT(L144/3.14)","v":0.61199999999999999}]
[null,null,null,null,null,null,null,null,null,{"$f":"3.14*(J143/2)^2","v":452.16},{"$f":"(K141/J141)*J144","v":0.61900704000000006},{"$f":"(L141/J141)*J144","v":0.29401704000000001}]
["Needle Diameters Every 10mm",null,null,null,"(end of taper dia.)"]
["Dia. 1","Dia. 2","Dia. 3","Dia. 4","Dia. 5"]
[2.5150000000000001,2.4,1.9,1.4,0.9]
["ANGLES -->",{"$f":"DEGREES(ATAN((A147-B147)/10))","v":0.65887242013218672},{"$f":"DEGREES(ATAN((B147-C147)/10))","v":2.8624052261117479},{"$f":"DEGREES(ATAN((C147-D147)/10))","v":2.8624052261117479},{"$f":"DEGREES(ATAN((D147-E147)/10))","v":2.862405226111747},{"$f":"E148","v":2.862405226111747}]
[null,{"$f":"(20*TAN(RADIANS((D148)/2))+C147-B147)/(-2*TAN(RADIANS((B148)/2))+2*TAN(RADIANS((D148)/2)))","v":-8.1132499301393296E-3},{"$f":"(20*TAN(RADIANS((E148)/2))+D147-C147)/(-2*TAN(RADIANS((C148)/2))+2*TAN(RADIANS((E148)/2)))","v":22489894542832},{"$f":"(20*TAN(RADIANS((F148)/2))+E147-D147)/(-2*TAN(RADIANS((D148)/2))+2*TAN(RADIANS((F148)/2)))","v":22489894542816},null,null,null,null,"Port Top Calculator"]
["TRANSITION -->",{"$f":"IF(OR(B149<=0,B149>=3),\"\",B149)","v":""},{"$f":"IF(OR(C149<=0,C149>=3),\"\",C149)","v":""},{"$f":"IF(OR(D149<=0,D149>=3),\"\",D149)","v":""},null,null,null,null,"top section width",22]
[null,null,null,null,null,null,null,null,"top section height",3]
[null,null,null,null,null,null,null,null,"max RPM",13000]
[null,null,null,null,null,null,null,null,"piston stroke",41.4]
[null,"Macro Ability Tester",null,null,null,null,null,null,"exhaust port duration",189]
[null,"Enter Any Number Here:",7,null,null,null,null,null,"max piston m/sec",{"$f":"(J153*J152)/(18660*(3.12/M168))","v":31.098070739549836}]
[null,null,null,null,null,null,null,null,"Port Top Rating",{"$f":"180*J151/(J150*J155)","v":0.7892918744389561}]
[null,"Click On Macro Button"]
[null,"To See If  Entered #",null,null,null,"Cranking Engine PSI"]
[null,"Appears Here :",null,null,null,"engine "]
[null,2.2000000000000002,null,null,null,"compr ratio","feet elevation","cranking psi"]
[null,null,null,null,null,7,500,{"$f":"((((F161-6)*34.8)+121)*(1-(0.14-(8-F161)*0.02)))/(1+G161*0.000075)","v":132.14843373493977}]
[]
["Other 2 Stroke Calculators :",null,"dragonfly75.com/moto/calculators.html"]
[]
[null,null,null,null,null,"Spark Voltage Calculator (Plug Outside Cylinder)"]
[null,null,null,null,{"$f":"760-(0.026*G166)","v":747},"Feet Elevation",500,"Spark Voltage"]
[null,null,null,null,null,"Max Spark Gap mm",8,{"$f":"12000+(G167-(0.000293*G166+7.52))*(374.5-(0.0128*G166))","v":12122.761350000001}]
[null,null,null,null,null,"Max Spark Plug Gap Needed Inside Cylinder",null,null,null,null,null,null,{"$f":"IF(J154>=180,3.31+(J154-180)*0.006,IF(J154>=170,3.23+(J154-170)*0.008,IF(J154>=160,3.12+(J154-160)*0.011,IF(J154>=150,3+(J154-150)*0.012,2.95))))","v":3.3639999999999999}]
[null,null,null,null,null,"Cranking PSI",132,"Spark Gap"]
[null,null,null,null,null,null,null,{"$f":"(IF(G169<>175,(175-G169)*0.0325,1))*(0.18+(H167-10000)*0.000225)","v":0.91902577199062507}]