jhelms

iTrader: (2)

I'm doing some research for someone on a nice blower cam for his LS1 with about 10psi of boost or so.

Anyone know of a nice design out there that is WORKING for people already?

MelloYellow

ARE's favorite blower grind is a 222/230.
Most go varied duration. Gonna go to a 216/224 here.

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 jhelms:
<strong>I'm doing some research for someone on a nice blower cam for his LS1 with about 10psi of boost or so.

Anyone know of a nice design out there that is WORKING for people already?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I really think this depends on head flow and boost levels. with that cam I'd say anything less than 10 psi and its not neccesary for that much difference in I/E, how much boost? I like a 224/228 grind or a 224-226/230 grind also, for 10 PSI 226/230-232 would be my favorite.

<small>[ March 27, 2002, 05:51 AM: Message edited by: Nickn20 ]</small>

MelloYellow

Anyone think more duration 224/230 is better for ported heads and less duration like 216/224 is better for stock heads?

jhelms

iTrader: (2)

Probably 9 to 12 psi boost, 9:1 cr, nicely flowing LS1 heads...

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 jhelms:
<strong>Probably 9 to 12 psi boost, 9:1 cr, nicely flowing LS1 heads...</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">my freind runs a 224/228 hes planning on 12 psi, no headwork though.

MelloYellow

Heads are a waste. Especially on a blown car. Spend the money on the bottom end 1st or exhaust.. Using heads to lower C/R, maybe then they are worth it...

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 MelloYellow:
<strong>Heads are a waste. Especially on a blown car. Spend the money on the bottom end 1st or exhaust.. Using heads to lower C/R, maybe then they are worth it...</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">the more air you can move the better, headwork will do this, I wouldnt call it a waste, because it can drop your boost levels, and make more power, now you can pulley up and still not have to run less timing and/or more octane, and make even more power once you get your boost back to where it was.

I do agree, 2k is spent better on a forged bottom end, but it heads are gonna keep detonation down, your stock shortblock will live longer, assuming you don't up the boost. just my thoughts.