long story short a friend got these cams with a head he picked up and so far nobody knows what cams they are here are some pics any help will be great

 

looks to be a logo stamped on the end, what head was it and did it have dual valve springs on both sides ?

is there any other markings on the cams or just the ones in the pictures?

 

b16 head with supertech valve train. only markings are the ones pictured

 

Regrinds?

 

Stock cams normally aren't marked. Those look like custom grinds. It looks like there is an emblem stamped on them. Any idea who that emblem belongs to?

 

i have never seen that emblem before....

any one esle?

 

I swear I have seen that stamp before but I don't remember the name of the company if I can think of it I will post.

I would guess the 'L 298 F' means 298 degrees duration and that the '366' part of the top number means .366" cam lift. I am not sure what the '57' means.

 

yeah lmk if you remember.

 

yea that was the next step i was gonna ask if he had a way to messure the lift and duration then compare what cams there are close to

 

You can easily measure the lift by using a caliper or micrometer to measure from the nose of the cam to the base circle, then measuring 90 degrees from there (just the base circle) and subtracting. If it is .366" then you know that is what that stamp means. Duration is harder to measure. It would need to be chucked in a lathe or between centers with a degree wheel attached to one end, then you 'plot' the cam with a dial indicator.

 

do you have a set of stock B cams to compare them to? You can tell if they are regrinds because the re-grinds base will actually be smaller. Other than that i cant help

 

ill try to get some measurements soon

yeah i do ill check

 

Yeah, you can compare base circles If the base circle is smaller than stock then you know they are regrinds for sure. However, if the base circle is same as stock it is possible they were ground from a new casting. If the base circle is different it is not a problem they should adjust same as stock. However, without knowing exactly what cams they are you will not know the ideal lash settings since lash is cam specific.

 

anyone else?

 

VTEC lobe looks pretty damn big compared to the primaries

 

i found this company http://schneidercams.com/camshafts.aspx
they're "S" looks like the one stamped on the cam has anyone heard of them?...iam going to email them.

 

looks like it could be that. worth the call atleast

 

no answer yet iam gonna keep tryin

 

x

 

i have never seen those before.

 

If they were regrinds they they wouldnt have the cast marks on the sides....atleast not all the way up being that they have to weld extra material on and then grind them down. Yes, some people might try grinding off the backside and setting the valvelash tighter, but you dont get much out of that.

 

BCIV

 

? you sure?

 

Wow , I have a set of similar cams I was just looking up. Mine are marked " 35711 C " " L 298 F " .. I found a forum about a year ago stating ( cant find it again) that these are stage 2 or stage 3 race cams. They compared them to OBX and Crower. I still have yet to figure them out for sure. Going to measure tonight. I have also sent the company you referred to an email with pics attached. Ill let you know if I find anything out.

 

You do not need to weld extra material onto the lobes to regrind them into performance camshafts. If you were to regrind a cam to make it have more lift the base circle would be reduced but the nose of the cam would be barely touched. This would have no effect on lash as that is dependent on the opening and closing ramp design, not base circle diameter. However, if the lift specs were substantially different between the stock grind and the custom grind it is advantageous to weld additional material due to the fact that too small a base circle could change the valvetrain geometry to the extent that it causes excessive side thrust on the valve stem.