Shawn

I'm going to get the Thunder 224/114 cam, pushrods, titanium retainers, and springs but am nervous because of the people that say turning such a high rpm is going to wear out the motor prematurely. What parts wil require extra maintenance, and which parts may possibly fail due to the new cam turning a higher rpm? Thanks for all your input.

PhantomTA

Just dont drive around at 6500 all the time <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Im running some arp rod bolts on in motor, other than that i have no problem spinning it to mid 6k

SSLink

With that cam you may want to turn a little higher than 6500 RPM. But yes, with improved valve springs and hardened pushrods you should be good to the 7K area easily. The LS1 bottom end is solid. It's the stock valvetrain that is the weak link. <img border="0" alt="[judgement]" title="" src="graemlins/gr_judge.gif" />

Sears

Stock shortblock here, been turning 6500+rpms for the last 2 years without a problem. Change your oil frequently if you race, always allow the car to come up to operating temp, and it helps if you do not miss a shift. <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" /> <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

For maximum insurace I would get a Rollmaster double row timing chain, ported oil pump, ARP rod bolts, the proper valve spring and set up correctly.

FWIW, when I had the TR224 cam I always shifted at 6400-6500rpms. I ran 11.80@116mph with stock heads and 11.66@119mph with local ported heads.

Justin

Justin

DanZ28

iTrader: (5)

Only one problem so far spinning mine up to 6900 RPM, I have a lifter bleeding out on me.

Dan

VINCE

iTrader: (1)

We do it all the time..

Nickn20

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by DanZ28:
<strong>Only one problem so far spinning mine up to 6900 RPM, I have a lifter bleeding out on me.

Dan</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">what are the syptoms, how do you know this?

BLUEBALLS ZZ

iTrader: (2)

72,000 on the clock and i rev mine everyday to 6500 <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> and run at the track almost every week. did the heads and cam 2 years ago at 35,000 miles. couldn't wait for that extra 1,000 before i ran out of warrenty <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />

SScamaro

On the older blocks without crankshaft venting, (pre 2001) I believe that there is a oil foaming concern if there is any extended RPM stay over 6500 rpm's...you guys hear that too? I know that in drag racing you are not over 6k for an extended period of time.

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 SScamaro:
<strong>On the older blocks without crankshaft venting, (pre 2001) I believe that there is a oil foaming concern if there is any extended RPM stay over 6500 rpm's...you guys hear that too? I know that in drag racing you are not over 6k for an extended period of time.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">T.T.T. ?

DanZ28

iTrader: (5)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> what are the syptoms, how do you know this? </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Nickn, I posted this about two weeks ago and don't want to hyjack the thread explaining it. Do a search on my name...

Dan

Vengeance Racing

Hell yes let it RIP>>>>>>>>>>>>>>>>>>>>