cam id

boogsawaste · 07-25-2008, 06:41 PM

I am ripping apart a mr2 at work and the owner wants me to swap cams from his blown up engine to his new stock engine. I was wondering if there is anyway to id the cams in his old engine (which he isn't sure if they are even performance cams). They are cwc (I believe those are just blanks sold that way), and there is only one mark that is stamped into them and not cast. It's the # 577. All the other #'s and letters are cast into the cams but I can list them if needed. If no one knows from that number does anyone know the specs on stock cams (it's an 87 mr2), so I can measure up these? Thanks

Mista 2 · 07-26-2008, 06:09 AM

I will have a look at my stock cam when i get to work tomorrow (its now a paper weight) and see it if has anything on it.

Mista 2 · 07-29-2008, 05:56 AM

There was nothing on my cam at all. Sorry for the late reply, i havn't been home for a few days

boogsawaste · 07-29-2008, 08:40 PM

Quote:

Originally Posted by Mista 2

There was nothing on my cam at all. Sorry for the late reply, i havn't been home for a few days

Ok cool. Still gotta find out what these are...

Gairloch · 07-29-2008, 08:56 PM

Have some pictures of the markings you can share?

boogsawaste · 07-29-2008, 08:58 PM

I'll take some and put them up tomorrow

boogsawaste · 09-27-2009, 05:52 PM

Well I never got around to taking any pictures and have been extremely busy lately. However while cleaning out my storage I stumbled across these cams! The owner didn't want to use them so I got them from him. I took a quick measurement of the lobes with a digital caliper, first measuring the base circle and then the lobe (subtracting from each other to get the lift). What I came up with is roughly .326 and .318. I'm not sure what ratio your rockers or valve lash adjusters or whatever you guys call them are but I threw in a guess at 1.7" and came up with a lift of .554/.541. These are very close to the number stamped on the cams themselves (577), so possibly that's the lift?

Either way I don't want them anymore and I don't have anyway to measure duration or overlap or anything like that. Do these specs sound close to stock? Anyone want them?

07-25-2008, 06:41 PM	#1 (permalink)
boogsawaste No Skills Join Date: Jul 2008 Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	cam id I am ripping apart a mr2 at work and the owner wants me to swap cams from his blown up engine to his new stock engine. I was wondering if there is anyway to id the cams in his old engine (which he isn't sure if they are even performance cams). They are cwc (I believe those are just blanks sold that way), and there is only one mark that is stamped into them and not cast. It's the # 577. All the other #'s and letters are cast into the cams but I can list them if needed. If no one knows from that number does anyone know the specs on stock cams (it's an 87 mr2), so I can measure up these? Thanks

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07-26-2008, 06:09 AM	#2 (permalink)
Mista 2 Cage Fighter Join Date: Nov 2006 Location: Adelaide, Australia Posts: 463 Thanks: 16 Thanked 21 Times in 21 Posts My Google Map iTrader Rating: (0/0% )	I will have a look at my stock cam when i get to work tomorrow (its now a paper weight) and see it if has anything on it.

07-29-2008, 05:56 AM	#3 (permalink)
Mista 2 Cage Fighter Join Date: Nov 2006 Location: Adelaide, Australia Posts: 463 Thanks: 16 Thanked 21 Times in 21 Posts My Google Map iTrader Rating: (0/0% )	There was nothing on my cam at all. Sorry for the late reply, i havn't been home for a few days

07-29-2008, 08:56 PM	#5 (permalink)
Gairloch Dreaming of apexes Join Date: Aug 2005 Location: Minneapolis, MN Posts: 5,313 Thanks: 139 Thanked 296 Times in 264 Posts Blog Entries: 4 My Google Map iTrader Rating: (7/100% )	Have some pictures of the markings you can share?

07-29-2008, 08:58 PM	#6 (permalink)
boogsawaste No Skills Join Date: Jul 2008 Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	I'll take some and put them up tomorrow

09-27-2009, 05:52 PM	#7 (permalink)
boogsawaste No Skills Join Date: Jul 2008 Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	Well I never got around to taking any pictures and have been extremely busy lately. However while cleaning out my storage I stumbled across these cams! The owner didn't want to use them so I got them from him. I took a quick measurement of the lobes with a digital caliper, first measuring the base circle and then the lobe (subtracting from each other to get the lift). What I came up with is roughly .326 and .318. I'm not sure what ratio your rockers or valve lash adjusters or whatever you guys call them are but I threw in a guess at 1.7" and came up with a lift of .554/.541. These are very close to the number stamped on the cams themselves (577), so possibly that's the lift? Either way I don't want them anymore and I don't have anyway to measure duration or overlap or anything like that. Do these specs sound close to stock? Anyone want them?