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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>mtndew98</b> <br /><small>Member # 9426</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(2009,8,2,16,14,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> Hey everyone Great site!<br /><br />New member here, got a 98 GT I road-race on the weekends. The motor is pretty much stock except for offroad X pipe with 65k original miles. I've done a lot of suspension work and have 4.10 gears. <br /><br />I'm looking at doing a PI swap (heads & intake) and wanted to know if the higher compression is going to be bad. The car already pings on 87 so I have to run 91 to keep it from pinging. The machine shop I spoke with said the higher compression is going to be an issue. I'm looking at used Romeo heads off a 04 GT. I will have a machine shop clean them and check everything before the install.<br /><br />This is a weekend toy, I need more hp for the track. I run with NASA up here in Nor Cal HPDE 3. If anyone here runs with NASA you might have seen me out there with my yellow 98 GT #40.. I never miss a race weekend.<br /><br />Any advice is appreciated. Thanks in advance!!! <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>mtndew98</b> <br /><small>Member # 9426</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(2009,8,2,20,18,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> Another option I'm looking at is doing the PI cam and intake swap using the stock heads.. I'm also trying to do this on the cheap <img border="0" title="" alt="[Wink]" src="wink.gif" /> <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>JohnB</b> <br /><small>Member # 969</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(2009,8,2,20,21,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> First off, welcome to the site. <img border="0" title="" alt="[Smile]" src="smile.gif" /> <br /><br />Do the PI swap. You'll love the change it makes in the car. At the very least, do a PI cam swap on your Non-PI heads, it's an improvement. <br /><br />If you want to do the PI swap SUPER cheap, I've got a deal for you. PM me if you're interested. <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>mtndew98</b> <br /><small>Member # 9426</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(2009,8,2,21,36,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> Thanks for the warm welcome and advice JohnB! <br /><br />I really want to get the best bang for the buck and the PI swap seems like it's the way to go. I've been reading about this for a while online. Just worried about the compression increase from the PI heads. <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>JohnB</b> <br /><small>Member # 969</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(2009,8,2,21,42,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> I've done plenty of these swaps. The compression isn't crazy, a lil over 10-1, so 91 octane is in order. I'd give your MAF a good once over as well, make sure nothin' is goin' wrong with it causing your detonation issue. <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>Maxoctane</b> <br /><small>Member # 1466</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(2009,8,3,22,40,0), 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 JohnB:<br /><strong> I've done plenty of these swaps. The compression isn't crazy, a lil over 10-1, so 91 octane is in order. I'd give your MAF a good once over as well, make sure nothin' is goin' wrong with it causing your detonation issue. </strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">My (mostly stock) 98 was pinging too. I pulled the MAF element, which was noticeably dirty and cleaned it with electronics spray and q-tips. No more pinging. <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>mtndew98</b> <br /><small>Member # 9426</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(2009,8,3,23,15,0), 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 Maxoctane:<br /><strong> </font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by JohnB:<br /><strong> I've done plenty of these swaps. The compression isn't crazy, a lil over 10-1, so 91 octane is in order. I'd give your MAF a good once over as well, make sure nothin' is goin' wrong with it causing your detonation issue. </strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">My (mostly stock) 98 was pinging too. I pulled the MAF element, which was noticeably dirty and cleaned it with electronics spray and q-tips. No more pinging. </strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">Thanks guys, I'll give that a try. I do use a K&N but I don't clean them, I replace when they get dirty.. <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>asskickn88</b> <br /><small>Member # 4957</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(2009,8,4,0,54,0), 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 mtndew98:<br /><strong>Thanks guys, I'll give that a try. I do use a K&N but I don't clean them, I replace when they get dirty.. </strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">The oil from the K&N filer is what builds up on the MAF and causes the ping, its actually very common. They have MAF specific cleaner at most parts stores, CRC brand in a silver can. Get that, carb and brake clean will leave crap behind. You can use the wrong method of cleaning and still have the same problem. I did this and looked everywhere else thinking the MAF was Ok and found out that was my problem all along.... no fun wasting time and money.<br /><br />Listen to JohnB, the swap will work wonders for your car. <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>Maxoctane</b> <br /><small>Member # 1466</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(2009,8,4,1,8,0), 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 asskickn88:<br /><strong> </font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by mtndew98:<br /><strong>Thanks guys, I'll give that a try. I do use a K&N but I don't clean them, I replace when they get dirty.. </strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">The oil from the K&N filer is what builds up on the MAF and causes the ping, its actually very common. They have MAF specific cleaner at most parts stores, CRC brand in a silver can. Get that, carb and brake clean will leave crap behind. You can use the wrong method of cleaning and still have the same problem. I did this and looked everywhere else thinking the MAF was Ok and found out that was my problem all along.... no fun wasting time and money.<br /><br />Listen to JohnB, the swap will work wonders for your car. </strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">Agreed. I always clean my K&Ns with water and compressed air only. Oilng the filter not only screws up the MAF but hinders flow as well. It was a while ago but I remember seeing a dyno chart that showed an out of the box Fram filter flowed BETTER than an oiled K&N. <br /> </font> </td></tr> </table></td></tr></table> <br /> <br />
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