CuriousJa

i just bought a "01 c5(LS1) 9.5 miles on it. i only have it 2 days now and it doesnt seem to have any piston slap, it smokes but it appears to be white and go away after a few miles of driving. my question is...does anyone have a LS1 paticularly a '01 that doesnt have oil consumption or piston slap problems?? even if you dont have a "01 or a LS1 and wanna comment on this thats cool too. Thanks -Ja <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

<small>[ February 21, 2003, 04:36 PM: Message edited by: CuriousJa ]</small>

Ian

I haven't noticed any oil consumption problems with my ls1 as of yet. It's an 00 WS6 with 29k miles.

ss rally red

iTrader: (8)

No engine noise and the most oil it's used in 3000 miles is less than 1/4 qt.

BYBYC5

lol stock i had NO probs, after the mods i burned oil like crazy, after the rebuild (wich inclucde better rings) ive had 0 probs

Venkman

iTrader: (4)

first motor had fairly bad piston slap that would go away on warm-up

it was recently replaced with a 2002 motor under warranty due to the #1 cylinder trashing itself. New motor has moderate piston slap that is gone by 190'

<small>[ February 21, 2003, 07:49 PM: Message edited by: Venkman ]</small>

LS1derfull

Less than 1 quart in 3000 miles for me and, no piston slap, just valvetrain noise on start up(since cam and springs).

Ackattack

I haven't added a drop of oil in 16k miles.
No piston slap either

wrencher

iTrader: (2)

00' with 25k & no problems.

red90cobra

iTrader: (36)

no slap and no oil consumpution here

Cal

iTrader: (1)

My 2001 LS1 uses oil like there is no tomorrow! No piston slap, though. All stock internals, no headers, just the way I drive I guess. <img border="0" alt="[evil]" title="" src="graemlins/gr_devil.gif" />

Cal

iTrader: (1)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by LS1derfull:
<strong> Less than 1 quart in 3000 miles for me and, no piston slap, just valvetrain noise on start up(since cam and springs). </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Which cam are you running?

Slowhawk

iTrader: (12)

No oil or slap noise here in a 01 TA.

gojo

iTrader: (12)

My 03' has no oil useage, no slap. Same since heads and cam. My PCV mod has picked up 1/4 inch in filter bowl in 1500 miles.

LS1derfull

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Cal:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by LS1derfull:
<strong> Less than 1 quart in 3000 miles for me and, no piston slap, just valvetrain noise on start up(since cam and springs). </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Which cam are you running? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I am running Comp custom grind with these specs:
.585"/.585" lift, 276*/276* seat duration, 220*/220* at .050" on a 112* LSA with 2* advance built in. Heres where it gets a little complicated, these lobes are magnum small block chevy hydraulic lobe designs, they are specced with 1.5 rocker ratio. LS1 is 1.7 ratio and that impacts specs like this:seat duration is unchanged but .050" is increased to 224* and much fatter duration under the curve, this higher ratio really speeds up valve accelleration making it more competitive with modern LS1 designs. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />