TUNING The 8v Camshaft Thread..

[axewielder]

here ya go, i can look for other engine codes if you want, this is straight from vw so should be accurate
valve timing at 1mm valve lift

engine code                           ADY          AGG             2E

Inlet opens after TDC               3               1               3
inlet closes after BDC              44              37              44
exhaust opens before BDC       37               41             37
exhaust closes before TDC       -                5                -
exhaust closes after TDC         4                -                4

[bored_Welsh_lad]

how do you turn that information into cam duration then?? i thought those figures with primarily to do with cam overlap issues and firing sequence i suppose...

[axewielder]

lol thought you knew!
for ady+2e, inlet duration = 3+44+180= 227  exhaust=37+4+180= 221
agg inlet=1+37+180=228  exhaust =41+180-5=216
i think thats how it works, havent really read ure post properly though
can get other engine code spec if wanted

[VW BUSH]

lol thought you knew!
for ady+2e, inlet duration = 3+44+180= 227  exhaust=37+4+180= 221
agg inlet=1+37+180=228  exhaust =41+180-5=216
i think thats how it works, havent really read ure post properly though
can get other engine code spec if wanted

MK2 PB engine

[tronds]

just trying to find out the standard camshaft duration on an 8v because i dont think its anywhere near 270 and stumbled across this lot...

Did you find any more information on camshafts? I am thinking of identification marks.
I am trying to identify a G60 camshaft. http://forums.vwvortex.com/zerothread?id=4572272
I will try to mount it into a head without valves and try to measure lift and duration. Not sure of what kind of accuracy I get, but I will try.

[axewielder]

i couldnt find info on the pb cam, was f**king up, i can get id marks for some engines, will look when home later, engine codes would help

[tronds]

i couldnt find info on the pb cam, was f**king up, i can get id marks for some engines, will look when home later, engine codes would help

I found info about the ID marks on the G60 cam. Just have a look at the thread at VWvortex.
If you have ID-marks for other camshaft, it would be great. I am trying to build a information table where you can find data on as many camshafts as possible.

[axewielder]

if you whack up some engine codes ill see what i can find

[tronds]

i couldnt find info on the pb cam, was f**king up, i can get id marks for some engines, will look when home later, engine codes would help

I have collected some info about camshaft.
Some comes from this thread, and the rest I have dug up for camshaft catalogs.
Information about powerband, HP increase and identity markings would be great.
http://www.solem.nu/G60/camshafts.pdf

[axewielder]

  G60 engine PG
 
→ Fig.4    Camshaft identification, valve timing

Identification

◆ Cam base diameter: a = 34 mm ø
◆ Identification by stamped numbers and letters between inlet and exhaust cams:
    No. 1 cylinder -arrow I-: A
    No. 3 cylinder -arrow II: 026
Valve timing at 1 mm valve lift

Inlet opens:
 TDC
 
Inlet closes after BDC:
 40 °
 
Exhaust opens before BDC:
 40 °
 
Exhaust closes:
 TDC