{"id":105,"date":"2026-07-05T00:00:00","date_gmt":"2026-07-05T00:00:00","guid":{"rendered":"http:\/\/stealthbus-105"},"modified":"2026-07-08T02:06:50","modified_gmt":"2026-07-08T02:06:50","slug":"ev-calc-model","status":"publish","type":"page","link":"https:\/\/stealthbus.net\/?page_id=105","title":{"rendered":"EV calc model"},"content":{"rendered":"\n

EV calc (http:\/\/www.evconvert.com\/tools\/evcalc\/<\/a>) model of the StealthBus.<\/p>\n\n\n\n

Summary<\/h2>\n\n\n\n
Configuration<\/td>Range @ 30 mph<\/td>Range @ 60 mph<\/td>Top speed (Limit)<\/td><\/tr>
Lead pack \/ Logisystems<\/td>43.6<\/td>25.7<\/td><\/td><\/tr>
GBS pack \/ Solition Jr<\/td>48.5<\/td>29.0<\/td><\/td><\/tr>
Tesla pack \/ Solition Jr<\/td>96.7<\/td>56.0<\/td>74 (Battery Voltage)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Vehicle (1973 Volkswagen Bus)<\/h2>\n\n\n\n
Drag Coeff<\/td>0.38<\/td><\/tr>
Frontal Area<\/td>27<\/td><\/tr>
Initial Curb Wt<\/td>2900<\/td><\/tr>
Drive efficiency<\/td>0.91<\/td><\/tr>
1st gear ratio<\/td>17.366<\/td><\/tr>
2nd gear ratio<\/td>9.40963<\/td><\/tr>
3rd gear ratio<\/td>5.76277<\/td><\/tr>
4th gear ratio<\/td>4.06273<\/td><\/tr>
Final ratio<\/td>4.57<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

From various VW specifications<\/p>\n\n\n\n

Motor (Net Gain – Warp 9)<\/h2>\n\n\n\n
Voltage<\/td>192<\/td><\/tr>
Weight<\/td>135<\/td><\/tr>
Horse Power<\/td>35<\/td><\/tr>
Maximum RPM<\/td>5000<\/td><\/tr>
Motor a<\/td>46239<\/td><\/tr>
Motor b<\/td>0.4564<\/td><\/tr>
Motor c<\/td>2436<\/td><\/tr>
Motor d<\/td>303<\/td><\/tr>
Motor k<\/td>0.0069<\/td><\/tr>
Motor n<\/td>1.5845<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Standard model from EV Calc tool.<\/p>\n\n\n\n

Battery (GBS)<\/h2>\n\n\n\n
Voltage<\/td>12.8<\/td><\/tr>
Weight<\/td><\/td><\/tr>
Puekerts Exp<\/td>100<\/td><\/tr>
Puekerts Cap<\/td>1.05<\/td><\/tr>
Resistance<\/td>0.006<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Battery (Tesla 5.3kWh)<\/h2>\n\n\n\n
Voltage<\/td>22.8<\/td><\/tr>
Weight<\/td>55<\/td><\/tr>
Puekerts Exp<\/td>232<\/td><\/tr>
Puekerts Cap<\/td>1.05<\/td><\/tr>
Resistance<\/td>0.006<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

System<\/h2>\n\n\n\n
Voltage<\/td>144<\/td><\/tr>
# Batt Strings<\/td>1<\/td><\/tr>
% DOD<\/td>100<\/td><\/tr>
Charger Weight<\/td>20<\/td><\/tr>
lbs Removed<\/td>600<\/td><\/tr>
Misc Added lbs<\/td>500<\/td><\/tr>
Incline<\/td>1<\/td><\/tr>
Wind<\/td>0<\/td><\/tr>
Tire Section<\/td>195<\/td><\/tr>
Tire Aspect<\/td>50<\/td><\/tr>
Tire Rim<\/td>15<\/td><\/tr>
Rolling Resistance<\/td>0.015<\/td><\/tr>
Brake\/Steer Resistance<\/td>0.003<\/td><\/tr>
Kwh Rate<\/td>0.09<\/td><\/tr>
Commute Miles<\/td>20<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Battery Pack (C&D Tech Max Rate AGM 138Ah)<\/h2>\n\n\n\n
Voltage<\/td>12.8<\/td><\/tr>
Weight<\/td>100<\/td><\/tr>
Puekerts Exp<\/td>1.082<\/td><\/tr>
Puekerts Cap<\/td>163.244<\/td><\/tr>
Resistance<\/td>0.0023<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

From C&D datasheet, converted to Puekerts using EV calc tools.<\/p>\n\n\n\n

Controller (Logisystems AFX 156)<\/h2>\n\n\n\n
min voltage<\/td>120<\/td><\/tr>
max voltage<\/td>156<\/td><\/tr>
max current<\/td>750<\/td><\/tr>
weight<\/td>20<\/td><\/tr>
efficiency<\/td>95<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

From Logisystems datasheet<\/p>\n","protected":false},"excerpt":{"rendered":"

EV calc (http:\/\/www.evconvert.com\/tools\/evcalc\/) model of the StealthBus. Summary Configuration Range @ 30 mph Range @ 60 mph Top speed (Limit) Lead pack \/ Logisystems 43.6 25.7 GBS pack \/ Solition Jr 48.5 29.0 Tesla pack \/ Solition Jr 96.7 56.0 74 (Battery Voltage) Vehicle (1973 Volkswagen Bus) Drag Coeff 0.38 Frontal Area 27 Initial Curb […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[11],"class_list":["post-105","page","type-page","status-publish","hentry","category-design"],"_links":{"self":[{"href":"https:\/\/stealthbus.net\/index.php?rest_route=\/wp\/v2\/pages\/105","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stealthbus.net\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/stealthbus.net\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/stealthbus.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/stealthbus.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=105"}],"version-history":[{"count":7,"href":"https:\/\/stealthbus.net\/index.php?rest_route=\/wp\/v2\/pages\/105\/revisions"}],"predecessor-version":[{"id":1271,"href":"https:\/\/stealthbus.net\/index.php?rest_route=\/wp\/v2\/pages\/105\/revisions\/1271"}],"wp:attachment":[{"href":"https:\/\/stealthbus.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=105"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stealthbus.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}