Cam. Idle Quality, and CID
10-30-2002, 09:28 AM
#1
Cam. Idle Quality, and CID I have a M6 Formula that is mostly stock. I am looking into building a stronger 346 cid, 382 cid Lunati kit, or an all-out 427 cid engine. I want an aggressive cam, but not have a too radical idle. I have been playing with a program called Engine Analyzer Pro and different cam durations and LDA. They say an estimated 15 inches vaccuum with idle well, but any low with idle rough. I want a streetable idle. I know a rough idling cam in a 346 will be alittle smoother in a 382 and so on. So if all you non stock engine can tell me your cid, cam profile, vacuum reading and idle sound. Dyno would be cool too
10-30-2002, 11:47 AM
#2
Re: Cam. Idle Quality, and CID </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Gold Phoenix:
<strong>I want an aggressive cam, but not have a too radical idle.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Unfortunately the two go hand in hand.
<strong>I want an aggressive cam, but not have a too radical idle.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Unfortunately the two go hand in hand.
10-30-2002, 11:55 AM
#3
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Re: Cam. Idle Quality, and CID </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Gold Phoenix:
<strong>I have a M6 Formula that is mostly stock. I am looking into building a stronger 346 cid, 382 cid Lunati kit, or an all-out 427 cid engine. I want an aggressive cam, but not have a too radical idle. I have been playing with a program called Engine Analyzer Pro and different cam durations and LDA. They say an estimated 15 inches vaccuum with idle well, but any low with idle rough. I want a streetable idle. I know a rough idling cam in a 346 will be alittle smoother in a 382 and so on. So if all you non stock engine can tell me your cid, cam profile, vacuum reading and idle sound. Dyno would be cool too</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">If you go Hydraulic you should be ok, but you won't get the power that a solid will provide. However, Lou at LGMotorsports has built several strokers lately and could probably give you some advice. He built a very drivable 418 before he built my 418 Solid Roller. It idled well and made something like 488 RWHP and 497 RWTQ if I remember.
Cheers
Randy Goss <img border="0" alt="[chug]" title="" src="graemlins/gr_chug.gif" />
<strong>I have a M6 Formula that is mostly stock. I am looking into building a stronger 346 cid, 382 cid Lunati kit, or an all-out 427 cid engine. I want an aggressive cam, but not have a too radical idle. I have been playing with a program called Engine Analyzer Pro and different cam durations and LDA. They say an estimated 15 inches vaccuum with idle well, but any low with idle rough. I want a streetable idle. I know a rough idling cam in a 346 will be alittle smoother in a 382 and so on. So if all you non stock engine can tell me your cid, cam profile, vacuum reading and idle sound. Dyno would be cool too</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">If you go Hydraulic you should be ok, but you won't get the power that a solid will provide. However, Lou at LGMotorsports has built several strokers lately and could probably give you some advice. He built a very drivable 418 before he built my 418 Solid Roller. It idled well and made something like 488 RWHP and 497 RWTQ if I remember.
Cheers
Randy Goss <img border="0" alt="[chug]" title="" src="graemlins/gr_chug.gif" />
10-30-2002, 03:13 PM
#4
Re: Cam. Idle Quality, and CID I meant that I want a fast-ramp, high lift cam with enough duration to get power, but not idle like it's struggling to keep turning the crank. I was more interested in the vacuum reading and the idle sound with certain combos of CID and Cam profiles.
