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Slicks vs. street tires with MPH?
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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>Black94 5.0</b> <br /><small>Member # 655</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(2003,2,26,16,55,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> Does anyone have any theories on why generally your 1/4 mile MPH is faster with street radials and slower with slicks?..Given the fact that the tire is the same overall diameter.... <img border="0" title="" alt="[Confused]" src="confused.gif" /> <br /><br />For example:<br />Street tires=13.6 @102mph<br />vs.<br />Slicks=13.4 @ 101mph<br /> <br /> <small>[ March 26, 2003, 04:58 PM: Message edited by: Black94 5.0 ]</small> <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>street_illegal_stang</b> <br /><small>Member # 1554</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(2003,2,26,19,5,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> maybe the drive has somthing to do with it <img border="0" title="" alt="[Big Grin]" src="biggrin.gif" /> <img border="0" title="" alt="[Razz]" src="tongue.gif" /> <img border="0" title="" alt="[Roll Eyes]" src="rolleyes.gif" /> <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>Chico Stang</b> <br /><small>Member # 801</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(2003,2,26,19,24,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> Not sure why exactly, but maybe because a street tires has less rubber touching the ground. Meaning once the tire cathes, there is less drag allowing you to go faster. Kinda the same way why real races use skinnies up front. Allows for less rubber toucing the ground, for less drag. Just a thought.<br /><br />Josh <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>98slowhoe</b> <br /><small>Member # 895</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(2003,2,26,19,28,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> This is what I think it is. When you run slicks it allows your car to run the most efficent(no tire spin) run it can make. When you have Street tires you tend to spin the tires a lot more and that gives you more time on the current run so with more time there is more MPH since they are directly related it can only make sense. <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>5.0Brian</b> <br /><small>Member # 262</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(2003,2,26,20,57,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> Slicks also balloon at speed. Mine even touch my bumper cover when I'm making a pass, but not when it's parked. <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>shade-tree</b> <br /><small>Member # 298</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(2003,2,26,22,15,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> gearing makes the main difference (aka tire size)<br /><br />my best mph always comes from my ET Streets, but I hear others who say their best mph comes from some nice tiny radials, I dunno. <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>Chris M.</b> <br /><small>Member # 1708</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(2003,2,27,16,21,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> i dont understand the tire spin = more mph theory. i think mph is direcly related to distance. you have more time on the track while spinning tire but that is waisted time not accelerating. <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>Chico Stang</b> <br /><small>Member # 801</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(2003,2,27,19,12,0), 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 98slowhoe:<br /><strong>This is what I think it is. When you run slicks it allows your car to run the most efficent(no tire spin) run it can make. When you have Street tires you tend to spin the tires a lot more and that gives you more time on the current run so with more time there is more MPH since they are directly related it can only make sense.</strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">So according to this theroy. Taking this is the exact same car, only difference is tires.<br /><br />The car on slicks runs an 11 sec 1/4 mile at 120mph, and has a 1.50 60 foot time.<br /><br />Then you put street tires on it, and the 60 foot time is now 3.0, so becuase his run is going to take longer (more time) and he should have a speed of almost twice as fast. Cause 3.0 is double the 1.50 time that was done on slicks.<br /><br />The mph should be translated to the distance.<br /><br />Another example, a honda civic runs a 10 second 1/8 mile at 50mph, while a mustang drives a 10 second 1/4 mile at 140mph.<br /><br />Now the Honda should end up being much faster then the mustang because he has more time to finish his 1/4 mile, correct?<br /><br />I think 5.0Brain and myself have the best theories yet. His with tire ballooing, mine with drag resistence.<br /><br />Josh <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>The Nick</b> <br /><small>Member # 2244</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(2003,2,27,19,24,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> It could also have something to do with just the plain old diameter and not the ballooning. If you run a 245/50/16 like I do, that translates to 25.65" of tire when at recommended psi. Then when you mount a slick, since they don't make 25.65" slicks, you must get a 26" tire and this will create a slower rotating mass, which I guess could translate into a decrease in trap speed. <br /><br />Damn, I should have paid more attention in high school physics. <img border="0" title="" alt="[Smile]" src="smile.gif" /> <br /> </font> </td></tr> </table></td></tr></table> <br /> <br />
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