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Will It make enough vacuum to run power brakes?
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<table border="0" cellpadding="1" cellspacing="1" width="99%" align="center"> <tr bgcolor="#000000"><td> <table border="0" width="100%" cellpadding="3" cellspacing="0"> <tr bgcolor="#000099"> <td colspan="2" align="left"> <font size="2" color="#ffffff" face="Verdana, Arial"> <b>T O P I C R E V I E W</b> </font></td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>StrokHer</b> <br /><small>Member # 9244</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2010,4,9,21,0,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> I have a 393w and i am going to install a tfs stage 3 cam in and was wondering if it will make enough vacuum to run my power brakes? Or will i have to go manual brake? <br /><br />Cam Specs:<br /><br />RPM Range - 3,200-6,800 RPM<br />Duration @ .050" - 236°/248°<br />Valve Lift with 1.6 Rocker - .574/.595<br />Lobe Separation - 110°<br /> <br /> <small>[ May 16, 2010, 02:34 AM: Message edited by: StrokHer ]</small> <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>StrokHer</b> <br /><small>Member # 9244</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2010,4,10,1,58,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> Anyone? <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>Duncan Motors</b> <br /><small>Member # 7045</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2010,4,11,0,25,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> nope lol!!!! no one cares! jk!! <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>StrokHer</b> <br /><small>Member # 9244</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2010,4,16,2,34,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> So Nobody knows if this cam will make good vacuum? <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>phildog</b> <br /><small>Member # 1214</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2010,4,20,1,40,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> The person to ask would be the cam manufacturer. But I swapped to MM's manual brake conversion and am very pleased. Lots more room in the engine bay with the booster gone and the pedal effort is not too bad. You can tell right away that you don't have assist, but I think the tradeoff is worth it. You can definitely use the extra room if you are running a 351w. <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>blueoval55</b> <br /><small>Member # 9787</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2010,4,20,1,52,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> nope. it wont have enough! and i agree that more room would be nice, and then maybe my brakes would work better. mine has a carb, and when its cold, it wants to idle too low, it doesnt wanna stop! need the manual brake conversion. my cam is smaller than that, and it pulls around 6 or 7 inches of vacuum. different profile, and its a 106 degree lobe seperation which kills vacuum. just switch it over to manual brakes! <br /> </font> </td></tr> </table></td></tr></table> <br /> <br />
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