What the max rpm to spin an ls1 with damaging the main and rod bearings. I'm asking this because I've heard good and bad story's. Any input, idea's, suggestions??

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by SleepinZ:
<strong>What the max rpm to spin an ls1 with damaging the main and rod bearings. I'm asking this because I've heard good and bad story's. Any input, idea's, suggestions??</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I use to spin mine to 6600 rpms.Now I want 6800 <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> just make sure you use a heavier weight oil.Oh and pray to the car gods as well <img border="0" alt="[hail]" title="" src="graemlins/gr_hail.gif" /> <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

anymore input ??

 

My primary concern wouldn't be the bearings, but the stock rods/rod bolts... The rods themselves aren't terribly weak, but the stock bolts leave much to be desired. With upgraded rod bolts and a well balanced rotating assembly, I don't think you'd have any problems up to 7200rpm or so. I wouldn't want to turn stock pistons/rods much more than that, personally...

 

IM GOING FOR 6000+ <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

<small>[ June 13, 2002, 10:47 PM: Message edited by: BADZ ]</small>