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Fuel Pressure low?
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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>mustanggt5091</b> <br /><small>Member # 444</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(2003,1,19,21,15,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> What should fuel pressure be set at? Mine is at 35 psi and drops to 33 when reved above 1500. I was thinking it should be in the 38 to 40 psi range. any ideas. I have a stock fuel pressure regulator, I hear Kirben are the way to go. I will be buying a ajustable one soon. <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>StreetStang37</b> <br /><small>Member # 935</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(2003,1,19,22,7,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> I been told its normal because your vacuum increases slightly at part throttle, lowering the fuel pressure. Your fuel pressure will raise (stock setting is 41#'s at WOT/0 vacuum I think) when you go WOT (no vacuum). Try doing some QUICK WOT revs. Another person inside the car should do this because I dont think doing it by hand is fast enough unless you want to accidentely hit the fuel cut off @ 6200 or get close to it. <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <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(2003,1,19,23,23,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> jeff, u arent talkin about ur car, u ahve 24s on a 351, i have 24s on a 302 and it likes 43psi without vacuum attached, u should need more since u have more hp<br />since this cant be ur car, what car is it, did u buy another one like me<br /><br />have u taken ur heads to lance to get checked yet, u better have, u dont get crackin i will have my 427 (not 408 anymore) runnin before u finish, what do u thing about stage 2 ported afr 205's <img border="0" alt="[worship]" title="" src="graemlins/worship.gif" /> <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>mustanggt5091</b> <br /><small>Member # 444</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(2003,1,21,0,8,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> No, I am talking about my car and yes there is only 35 psi and 33 at WOT! What the fuck, I do have 24 and slightly larger fuel rails(351 rails), but thats low I think. <br /><br />Eric, since you melted part of my dads timing light, let me get one of your smog pumps. When can I come by and see the new car. And yes 205 would be nice, so would canfields!!!! <img border="0" title="" alt="[Big Grin]" src="biggrin.gif" /> <br /> </font> </td></tr> </table></td></tr></table> <br /> <br />
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