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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>castor</b> <br /><small>Member # 2765</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(2004,9,4,15,41,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> Is it correct to say that if my boost guage is connected to the vacuum tree on the firewall right behind the steering wheel, that's "intake boost" and it reads lower than connecting it to the outlet of the unit itself?<br />If so, then connecting to the output will give me a more accurate reading?<br /><br />Thanks in advance. <img border="0" alt="[patriot]" title="" src="graemlins/patriot.gif" /> <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>5LVENOM</b> <br /><small>Member # 2282</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(2004,9,4,16,7,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> Any manifold vacuum source will give an accurate reading. <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>white1990stang</b> <br /><small>Member # 2307</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(2004,9,4,16,28,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> i connected mine to the fitting on the tb. you know where the hose from the valve cover oil fill to the tb went. i used an adapter like the one used right behind the gauge to connect the line and a 2 inch piece of rubber hose. <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>66 AC COBRA</b> <br /><small>Member # 904</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(2004,9,4,16,38,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> yeas and no, if u had 500 90's bends iun ur system, and the blower saw 50psi, but the intake only saw 8psi, what would u tune the car for<br />8psi<br /><br />obviously that is exagerated but it demostrates my point<br /><br />boost is not power, just a restriction, so where do u want to measure that, where the motor is sucking it in or where the blower is spitting it out<br /><br />and think of it think way, either u will make 352rwhp at 8psi referenced at the manifold or 352rwhp at 11psi referenced at the blower <img border="0" title="" alt="[Razz]" src="tongue.gif" /> <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>castor</b> <br /><small>Member # 2765</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(2004,9,4,16,43,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> </font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by 66 AC COBRA:<br /><strong> yeas and no, if u had 500 90's bends iun ur system, and the blower saw 50psi, but the intake only saw 8psi, what would u tune the car for<br />8psi<br /><br />obviously that is exagerated but it demostrates my point<br /><br />boost is not power, just a restriction, so where do u want to measure that, where the motor is sucking it in or where the blower is spitting it out<br /><br />and think of it think way, either u will make 352rwhp at 8psi referenced at the manifold or 352rwhp at 11psi referenced at the blower <img border="0" title="" alt="[Razz]" src="tongue.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">Thanks for the great info. Only reason I'm asking is because from the tree, I only see about 3 1/2lbs. of boost at about 5k plus RPMs. My blower is older, rated from the factory at 5-6lbs of boost, but when it was rebuilt, the modified impeller was added at a rating of 1-2lbs of additional boost, if memory serves me correct. The unit in question is a Paxton SN2000.<br />Thanks, all. <img border="0" alt="[patriot]" title="" src="graemlins/patriot.gif" /> <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>Fostang</b> <br /><small>Member # 3752</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(2004,9,4,17,24,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> </font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by castor:<br /><strong> </font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by 66 AC COBRA:<br /><strong> yeas and no, if u had 500 90's bends iun ur system, and the blower saw 50psi, but the intake only saw 8psi, what would u tune the car for<br />8psi<br /><br />obviously that is exagerated but it demostrates my point<br /><br />boost is not power, just a restriction, so where do u want to measure that, where the motor is sucking it in or where the blower is spitting it out<br /><br />and think of it think way, either u will make 352rwhp at 8psi referenced at the manifold or 352rwhp at 11psi referenced at the blower <img border="0" title="" alt="[Razz]" src="tongue.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">Thanks for the great info. Only reason I'm asking is because from the tree, I only see about 3 1/2lbs. of boost at about 5k plus RPMs. My blower is older, rated from the factory at 5-6lbs of boost, but when it was rebuilt, the modified impeller was added at a rating of 1-2lbs of additional boost, if memory serves me correct. The unit in question is a Paxton SN2000.<br />Thanks, all. <img border="0" alt="[patriot]" title="" src="graemlins/patriot.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">Yup thats the right amount of boost your seeing. 3.5 pounds possibly 4 just because of the boost not getting efficiently read from the vacuum tree.<br /> <br /> <small>[ October 04, 2004, 05:24 PM: Message edited by: Fostang ]</small> <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>castor</b> <br /><small>Member # 2765</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(2004,9,5,10,58,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> </font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by Fostang:<br /><strong> </font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by castor:<br /><strong> </font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by 66 AC COBRA:<br /><strong> yeas and no, if u had 500 90's bends iun ur system, and the blower saw 50psi, but the intake only saw 8psi, what would u tune the car for<br />8psi<br /><br />obviously that is exagerated but it demostrates my point<br /><br />boost is not power, just a restriction, so where do u want to measure that, where the motor is sucking it in or where the blower is spitting it out<br /><br />and think of it think way, either u will make 352rwhp at 8psi referenced at the manifold or 352rwhp at 11psi referenced at the blower <img border="0" title="" alt="[Razz]" src="tongue.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">Thanks for the great info. Only reason I'm asking is because from the tree, I only see about 3 1/2lbs. of boost at about 5k plus RPMs. My blower is older, rated from the factory at 5-6lbs of boost, but when it was rebuilt, the modified impeller was added at a rating of 1-2lbs of additional boost, if memory serves me correct. The unit in question is a Paxton SN2000.<br />Thanks, all. <img border="0" alt="[patriot]" title="" src="graemlins/patriot.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">Yup thats the right amount of boost your seeing. 3.5 pounds possibly 4 just because of the boost not getting efficiently read from the vacuum tree. </strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">Thanks...anyone else? <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>66 AC COBRA</b> <br /><small>Member # 904</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(2004,9,5,12,23,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> i never said that the vaccumm tree was a good place for reference <img border="0" title="" alt="[Razz]" src="tongue.gif" /> <br /><br />i woulkd want that gauge directly off the intake manifold <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>PurpleNotch</b> <br /><small>Member # 2902</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(2004,9,5,17,41,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> i use the vacumm tree on the firewall and i have seen almost 13 pounds on the guage when i was on the dyno so i believe that the spot is ok. <img border="0" alt="[patriot]" title="" src="graemlins/patriot.gif" /> <br /> </font> </td></tr> </table></td></tr></table> <br /> <br />
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