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> Camshaft recommendation for PMO'd 2.4S ?
amallagh
post Jul 16 2008, 05:13 PM
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I've recently converted my 914-6 to a 2.4S spec engine with PMO 40 carbs.

The engine/heads are standard S spec but with 2.2S pistons giving about 9.3:1 compression rather and the std 8.5:1.

Can any one recommend a specific cam profile/supplier that is optimised for use on carbs with an S spec engine ?
If the std S cams from an MFI engine are considered to the the best for this application then I would be happy to hear your experiences.
I'm looking for a fast road cam to give me similar performance to the std S cams on MFI. The car is used on the road as well as for competition, so I need something smoothy and tractible at low RPM.

Regards
Andrew
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J P Stein
post Jul 17 2008, 08:38 PM
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Tho I can't prove it, I suspect the MFI, S combo has a certain amount of reversion.
The tall stacks & the extra bit of length the delivery point provides would help keep this contained where it does no (or little ) harm.

The S cams came out for one year only (IIRC) with IDS carbs. From what I'm told, it was not a happy marriage.
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Posts in this topic
amallagh   Camshaft recommendation for PMO'd 2.4S ?   Jul 16 2008, 05:13 PM
brant   Andrew, have you driven an S cam MFI vehicle? if...   Jul 16 2008, 05:28 PM
ArtechnikA   ...so if you need something more tractable, then ...   Jul 17 2008, 06:52 AM
J P Stein   Solex or E cams are the cat's ass for a street...   Jul 16 2008, 06:01 PM
396   Solex or E cams are the cat's ass for a stree...   Jul 16 2008, 07:29 PM
scotty b   +1 for Solex :driving: S is great once you hit 6...   Jul 16 2008, 08:14 PM
Phoenix-MN   :agree: B)-->
QUOTE(scotty b ...   Jul 16 2008, 08:19 PM
Root_Werks   :agree: B)--><div class='quotetop...   Jul 24 2008, 11:21 AM
amallagh   Excuse my ignorance but what exactly in a Solex gr...   Jul 17 2008, 03:01 PM
Phoenix-MN   I think "Solex" was coined from the very...   Jul 17 2008, 04:16 PM
ArtechnikA   I think "Solex" was coined from the ver...   Jul 17 2008, 06:27 PM
amallagh   Great info, thankyou. So is the Solex cam specifi...   Jul 17 2008, 07:02 PM
ArtechnikA   So is the Solex cam specifically optimised for us...   Jul 17 2008, 07:39 PM
J P Stein   The big "problem" with S cams is duratio...   Jul 17 2008, 07:31 PM
ArtechnikA   MFI delivers fuel below the butterflies and has t...   Jul 17 2008, 07:46 PM
J P Stein   Tho I can't prove it, I suspect the MFI, S com...   Jul 17 2008, 08:38 PM
scotty b   Tho I can't prove it, I suspect the MFI, S co...   Jul 17 2008, 08:43 PM
ArtechnikA   Tho I can't prove it, I suspect the MFI, S co...   Jul 17 2008, 09:51 PM
brant   You've opened a big mystery box now there are ...   Jul 17 2008, 08:42 PM
ArtechnikA   by the way, you can get GE grinds for 3 bearing s...   Jul 17 2008, 10:01 PM
brant   did we ever establish if those are available for ...   Jul 17 2008, 10:09 PM
ArtechnikA   I know they exist I wish I knew you were looking ...   Jul 17 2008, 11:47 PM
amallagh   So if I glean some of the different opinions expre...   Jul 18 2008, 03:23 AM
ArtechnikA   If the Solex cam is ideal for a PMO set up with S...   Jul 18 2008, 05:32 AM
J P Stein   Like most of these old parts (or old style), findi...   Jul 18 2008, 07:29 AM
ArtechnikA   I forget exactly where I got these....no matter, ...   Jul 18 2008, 10:13 AM
J P Stein   The "ideal" cams for carbs would be the ...   Jul 18 2008, 07:49 AM
J P Stein   40s...sorry about the lousy pic. :D   Jul 18 2008, 05:01 PM
ArtechnikA   40s...sorry about the lousy pic. Actually it...   Jul 18 2008, 05:14 PM
TimT   Amallagh, I have a set of WebCam 158R grind cams,...   Jul 18 2008, 07:29 PM
amallagh   Amallagh, I have a set of WebCam 158R grind cams...   Jul 23 2008, 04:30 PM
6freak   Amallagh, I have a set of WebCam 158R grind cam...   Jul 24 2008, 10:42 AM
TimT   I forgot to add, I have dyno plots somwhere of t...   Jul 18 2008, 07:38 PM
J P Stein   Hay, Tim, that is a good buy.   Jul 18 2008, 09:20 PM
6freak   Hay, Tim, that is a good buy. Sent the man a P...   Jul 23 2008, 09:47 AM
sixnotfour   the cam card is listed on the website, looked at i...   Jul 24 2008, 10:48 AM
amallagh   the cam card is listed on the website, looked at ...   Jul 24 2008, 01:29 PM
J P Stein   Solex & S cams have the same 97 deg lobe cent...   Jul 24 2008, 07:06 PM

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