Between These (2) Cams, Which Idles better?
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From: Newport Coast, Ca
Between These (2) Cams, Which Idles better? I have the Comp Cam 212/218 and Am comparing it to the MMS 224 Cam, provided that both cams are setup up with Stage II heads, and everything being "apples for apples". Provided that both cams idle in drive at 800-900RPM's.
This might sound like a "duh" question, but what do u really think will idle better? The Comp has a huge split dur while the MMS cam is single pattern. I here a lot of people say single pattern idles better than split. Granted the MMS cam has more duration but then again that Comp Cam I have has a huge split duration. Is it possible for these Cams to have the same characteristics at idle?
just want to hear your .02/opinion
Thank you!!
Jack
This might sound like a "duh" question, but what do u really think will idle better? The Comp has a huge split dur while the MMS cam is single pattern. I here a lot of people say single pattern idles better than split. Granted the MMS cam has more duration but then again that Comp Cam I have has a huge split duration. Is it possible for these Cams to have the same characteristics at idle?
just want to hear your .02/opinion
Thank you!!
Jack
Re: Between These (2) Cams, Which Idles better? Yes, the smaller cam has a large split, but its also a much smaller duration cam than the 224 cam. I'd say the 224 cam will idle rougher, but also make alot more power.
Tony
Tony
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From: Nawf Carolina
Re: Between These (2) Cams, Which Idles better? You say the Comp is a huge split duration but actually its sorta mild/average. You can look in a Summit or Jegs and find split durations for BBCs and SBCs with 10 degrees or more difference.
J.
J.
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From: Newport Coast, Ca
Re: Between These (2) Cams, Which Idles better? [quote]Originally posted by Crazyquik:
<strong>You say the Comp is a huge split duration but actually its sorta mild/average. You can look in a Summit or Jegs and find split durations for BBCs and SBCs with 10 degrees or more difference.
J.</strong><hr></blockquote>
so give me your opinion on the post...
<strong>You say the Comp is a huge split duration but actually its sorta mild/average. You can look in a Summit or Jegs and find split durations for BBCs and SBCs with 10 degrees or more difference.
J.</strong><hr></blockquote>
so give me your opinion on the post...
Re: Between These (2) Cams, Which Idles better? The 212 cam will have a Cadillac idle a 800 rpms. The 224 cam will lope pretty hard in an automatic, even with 900 idle speed. Not even a comparison from idle stand point.
I had a 209/216 cam with Stage I heads a few years ago, then upgraded to a 221/224 cam. Boy that was a big jump in thumping. The 221/224 cam would not idle unless I programmed the pcm for the higher idle speeds. With 850 in drive and 950 rpms in neutral, this cam was liveable, but truthfully, I only gained less than a tenth over the smaller cam. Bigger can be better, but sometimes you don't get the big drop in ET for all the rough idlling woes.
I had a 209/216 cam with Stage I heads a few years ago, then upgraded to a 221/224 cam. Boy that was a big jump in thumping. The 221/224 cam would not idle unless I programmed the pcm for the higher idle speeds. With 850 in drive and 950 rpms in neutral, this cam was liveable, but truthfully, I only gained less than a tenth over the smaller cam. Bigger can be better, but sometimes you don't get the big drop in ET for all the rough idlling woes.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
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From: Nawf Carolina
Re: Between These (2) Cams, Which Idles better? My opinion, definently think the Comp will idle better. I would guess that even a 216/220 would idle better than a MMS 224 (of course duration at the seat is going to make a larger difference here, I would still suspect the Comp to idle better)
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Re: Between These (2) Cams, Which Idles better? [quote]Originally posted by Patrick G:
<strong>The 212 cam will have a Cadillac idle a 800 rpms. The 224 cam will lope pretty hard in an automatic, even with 900 idle speed. Not even a comparison from idle stand point.
I had a 209/216 cam with Stage I heads a few years ago, then upgraded to a 221/224 cam. Boy that was a big jump in thumping. The 221/224 cam would not idle unless I programmed the pcm for the higher idle speeds. With 850 in drive and 950 rpms in neutral, this cam was liveable, but truthfully, I only gained less than a tenth over the smaller cam. Bigger can be better, but sometimes you don't get the big drop in ET for all the rough idlling woes.</strong><hr></blockquote>
Agreed.
<strong>The 212 cam will have a Cadillac idle a 800 rpms. The 224 cam will lope pretty hard in an automatic, even with 900 idle speed. Not even a comparison from idle stand point.
I had a 209/216 cam with Stage I heads a few years ago, then upgraded to a 221/224 cam. Boy that was a big jump in thumping. The 221/224 cam would not idle unless I programmed the pcm for the higher idle speeds. With 850 in drive and 950 rpms in neutral, this cam was liveable, but truthfully, I only gained less than a tenth over the smaller cam. Bigger can be better, but sometimes you don't get the big drop in ET for all the rough idlling woes.</strong><hr></blockquote>
Agreed.
Re: Between These (2) Cams, Which Idles better? The 224 cam will lope harder.
My 242/242/114 lopes a bit. <img src="graemlins/gr_xmas.gif" border="0" alt="[santa]" />
My 242/242/114 lopes a bit. <img src="graemlins/gr_xmas.gif" border="0" alt="[santa]" />