Ok so i had a thread here a while ago about my idle and vacuum, well i sit at 11InHg and have a funky idle, well i was out cleaning the car today a figured i would try to look at the cams. Well i pulled the oilcap and what i can see printed on the one is

worth
4164

the first parts of these are cut off by a piece under the valve cover.

Can anyone tell me if these are stock or not?

Also a second question is, im on a stock ECU no tune. I am running a COBB sf intake and thats it. Is it ok to be running this without a tune?

I have heard mixed things yes and no, the second half is what if i do have cams. This car is my DD and i dont have the extra money for a tune right now.....

 

Not sure bout ur cams but try swapping ur stock intake back in and resetting the ecu. Intakes without a tune can make ur idle rough.

Also check for boost leaks if u havent in a while.

 

i had the bouncy idle before the intake.

 

Did some research and came up with this picture the numbers are different but the Cosworth looks identical, im going to pull the vavle cover and check things out soon, ill let you know what i come up with.

 

Did you just buy this car? I would recommend taking it to a tuner and having them look it over. They should also be able to tell you if the car already has a tune and what mod's are installed.

 

Yea my friend judging by the vacuum and the fact that the stock cams have nothing really written on them I would say u have a set of aftermarket cams . How long have u had this car?

 

Ive had the car for close to a year now, and i got it from a dealer in the area. Nobody knows what was done to the car

 

I know for a fact it is a stock ecu, it had a tune when the dealer got it and they couldnt pass it for NY inspection....So they had to replace the ecu

 

Ok so i pulled the valve cover today and they are Cosworth M2 cams..... numbers on them are 20004164 inlet and 20004166 exhaust.