924Board.org

Mclaren924 · Joined: 13 Oct 2021 Posts: 262 Location: Oceanside CA

I'm rebuilding a 1982 S2 engine and have been on the hunt for a cam and mechanical followers. I thought I found my winner when I came across piper cams but after a quick chat with a rep there he said that the S2 cam is different from the S1. Can anyone confirm or give some input.
Cheers
_________________
1980 931 "Salt" Bucket wannabe racer (Dreaming)
1979 924 Sebring "Pepper" -Sold
1977 924 Slicktop "Pennie"-Most likely parts
1979 3/5 gt clone 924- Shop Test Car

924-76 · Joined: 05 Jun 2006 Posts: 1489 Location: Ontario, Canada

924 turbo cam are all the same, and if I remember correctly all 924 cam are the same, NA and turbo.
_________________
1976 924 N/A ROW SOLD
1980 931S
1981 931 Part car RIP

anthonimartini · Joined: 17 Feb 2020 Posts: 240 Location: portland oregon

yeah the cams are all basically the same. there is a very early cam that i believe was directly from the audi 100. please keep us updated on what you do for lifters. i still have a good set but am always looking for options.
_________________
ive saved alot of 924's
current:
79 MochaSchwartz 931
83 944
87 924S
Instagram @anthoni.jpeg
formerly known as turbellion, lost password.

Carrera RSR · Joined: 08 Jan 2010 Posts: 2312 Location: Somerset, UK

Mclaren924 · Joined: 13 Oct 2021 Posts: 262 Location: Oceanside CA

I have all the pet manuals and I couldn’t find a different but a guy at piper told me that the s2 and s1 cams were different. This is very helpful information as I plan to get an ultimate road cam from piper. I would use the stock cam but it’s not much good after the previous owner let the belt snap… As for lifters I’m not entirely sure but will probably end up going with solid lifters . Any suggestion or advice is much appreciated as I really do need more education on this…
Cheers
Malcolm
_________________
1980 931 "Salt" Bucket wannabe racer (Dreaming)
1979 924 Sebring "Pepper" -Sold
1977 924 Slicktop "Pennie"-Most likely parts
1979 3/5 gt clone 924- Shop Test Car

MikeJinCO · Posted: Tue Jan 18, 2022 12:10 am Post subject:

I believe both Piper and Newman can make solid lifters. I use the ACM ones from Sweden, they were relatively inexpensive at under at under $150 per set, RD Spring in CA might also have them, he supplied my Chevy LS spring and retainer setup for the 931 head. You do have to use shims for valve clearance, I use ones from the Alfa 105(9mm) motor as they come in a wide range of sizes and cost about $6 each, Valve adjustments are a pain because the distributor and cam have to be removed but that's life. Some people say to get less expensive fixed thickness ones and have them surface ground to fit, butt as busy as most motor machinists are I find the Alfa system much quicker and cheaper.

I adjusted six valves on my race NA(barely modified) race car motor by swapping 4 around and buying 2 new ones, cost under $15.

Our method for initial adjustment was to assemble head with lifters and cam then measure for each. Shims showed up about 4 days later.
_________________
Mike

'67 MG Midget Dp
'71 Ocelot Dsr Kawasaki 1000(under rebuild)

Mclaren924 · Joined: 13 Oct 2021 Posts: 262 Location: Oceanside CA

Excuse the stupid questions I’m about to ask but are lifters and followers the same thing? I currently have new inner and outer oem springs on the way along with valve guides, valve seals, and new valves for the ones that got smashed when the belt snapped. Also do I have to get the valve seats cleaned up at a shop or how should I tackle those. Thank you for the help
Cheers
Malcolm [/i]
_________________
1980 931 "Salt" Bucket wannabe racer (Dreaming)
1979 924 Sebring "Pepper" -Sold
1977 924 Slicktop "Pennie"-Most likely parts
1979 3/5 gt clone 924- Shop Test Car

Mclaren924 · Joined: 13 Oct 2021 Posts: 262 Location: Oceanside CA

Excuse the stupid questions I’m about to ask but are lifters and followers the same thing? I currently have new inner and outer oem springs on the way along with valve guides, valve seals, and new valves for the ones that got smashed when the belt snapped. Also do I have to get the valve seats cleaned up at a shop or how should I tackle those. Thank you for the help
Cheers
Malcolm
_________________
1980 931 "Salt" Bucket wannabe racer (Dreaming)
1979 924 Sebring "Pepper" -Sold
1977 924 Slicktop "Pennie"-Most likely parts
1979 3/5 gt clone 924- Shop Test Car

Mclaren924 · Joined: 13 Oct 2021 Posts: 262 Location: Oceanside CA

Excuse the stupid questions I’m about to ask but are lifters and followers the same thing? I currently have new inner and outer oem springs on the way along with valve guides, valve seals, and new valves for the ones that got smashed when the belt snapped. Also do I have to get the valve seats cleaned up at a shop or how should I tackle those. Thank you for the help
Cheers
Malcolm
_________________
1980 931 "Salt" Bucket wannabe racer (Dreaming)
1979 924 Sebring "Pepper" -Sold
1977 924 Slicktop "Pennie"-Most likely parts
1979 3/5 gt clone 924- Shop Test Car

MikeJinCO · Posted: Tue Jan 18, 2022 11:08 am Post subject:

Yes lifters and cam followers are the same thing. If it is a NA motor having a shop do the valve is by far the best as they can go a 3 or 5 angle seat and also back cut the valves to help the flow a bit.
_________________
Mike

'67 MG Midget Dp
'71 Ocelot Dsr Kawasaki 1000(under rebuild)

Mclaren924 · Joined: 13 Oct 2021 Posts: 262 Location: Oceanside CA

Once again another dumb question but, assuming I had the unloaded head prepped at a shop and the seats done. Would I be able to do a three angle job myself or is this just worth taking it to a shop?
Cheers
_________________
1980 931 "Salt" Bucket wannabe racer (Dreaming)
1979 924 Sebring "Pepper" -Sold
1977 924 Slicktop "Pennie"-Most likely parts
1979 3/5 gt clone 924- Shop Test Car

Mike9311 · Joined: 14 Dec 2004 Posts: 1798 Location: Chicago-ish

MikeJinCO · Posted: Wed Jan 19, 2022 2:30 am Post subject:

PM sent
_________________
Mike

'67 MG Midget Dp
'71 Ocelot Dsr Kawasaki 1000(under rebuild)