I have spoken to the guys at Mountune regarding my cams, but three times thay have gone searching for the information and not returned my call, claiming it's their busy period of the year, when I call back.
All Im after is the specs and customer information for cosworth YB cams with their part numbers MTPL11 and MTPL 12A as stamped on the cams.
Anyone used these or know anything about them.

cheers fellas,

Justin P

 

Can't help with mountune's unhelpfulness, but if you to a engine builder, he can soon put some gauges on them to determine lift and duration, will charge of course but won't take and hour even, or buy a degree disc and dial gauge and DIY, it's not hard, especially if you can beg/borrow/steal a lathe, can be done without buty a lot harder, as has to be held dead steady.
tabetha

 

i dont know aswell,, but as tabs said, you could measure the profile yourself

 

Thanks guys, I was hoping to get informtion as to Mountunes recommendation as to valve spring requirements (double, single etc) , lifter type (solid or hydraulic) and which is exhaust or inlet. Are they 4wd with spacer or 2wd cams and anything else I would need to know. They are brand new bar 2 hours on a dyno, and they came with a head but the seller couldnt find the details.
Ill keep hoping here and ringing mountune until they answer me.

cheers,
Justin P

 

try ringing mark shead at ma developments, he may be able to help 07768 356204

 

Finally had a call back from them today.
all they could tell me about two of their products is one of them is 105 degree duration? nothing else. is this normal for a British parts supplier to not keep this sort of data, or more importantly not be able to find it for the customer. Not shopping there anymore.
cheers,
Justin p

 

i think you will find the 105 they refer to is the static cam timing not duration

 

i hope its not the duration

 

technically it could be the timing at 1 mm of valve lift at 105 static it will be very lumpy

are these cams new or second hand mountune developed many cams for the yb over the years

 

Thats all I was told 105 degree, they couldnt say which one it was though. They have never been used however they may have sat for a time so age is truly unknown. Im very surprised they don't keep records of their products, surely it doesn't take up alot of space to have a filing cabinet with parts specs. the standard cam pulley bolts dont fit either so this sort of information would be important and they stamp the part number on them for a reason.
The cams are high lift by the look of them and they were described by the seller as being the Mountune equivalent of BD15/16. so a race cam too.
cheers,
Justin P