Krismc
|
| posted on 25/4/09 at 05:09 PM |
|
|
Black Top Zetec Cams - in place of Piper 285
Im getting conflicting reports of why my car didnt pass SVA emmsions, engine tuner said its because my cams have a large overlap they are 285
pipers.
What do you guys think??
Im after a pair of Standard cams 2.0 Litre Zetec Black just to get me through SVA if you think its the piper ones causing it!!
cheers kris
Built, Ivaed, Drove and now Sold - 2011 MNR VORTX RT+ 2000cc Zetec on R1 Throttle boddies.
|
|
|
|
|
paulf
|
| posted on 25/4/09 at 05:28 PM |
|
|
The problem you will have is that the cams are shimmed on a blacktop , you would need to reshim them to suit your cylinder head.
If the problem is related to the cams then maybe the cam timing could be adjusted slightly to help.
Paul.
|
|
|
Krismc
|
| posted on 25/4/09 at 05:36 PM |
|
|
I have adjustable pullys.
Built, Ivaed, Drove and now Sold - 2011 MNR VORTX RT+ 2000cc Zetec on R1 Throttle boddies.
|
|
|
paulf
|
| posted on 25/4/09 at 06:19 PM |
|
|
Its possible to adjust the cam pulleys on a standard zetec by slackening the retaining bolt. I take it that yours are vernier type , are they set
correctly? even if they are it may be possible to tweak them for the emissions although if the cams are not too extreme profile you shouldnt need
to.
Paul.
quote:
Originally posted by Krismc
I have adjustable pullys.
|
|
|
ncoll
|
| posted on 25/4/09 at 07:05 PM |
|
|
285 piper blacktop cams are only 285 in name,the inlet duration is 264 degrees, the exhaust is 256 degrees. The overlap is 44 degrees, not wild in
anybodies imagination. Has the cylinder head been modified?
Neil Collingwood
|
|
|
Krismc
|
| posted on 26/4/09 at 08:07 PM |
|
|
The inlets have been opened a little to allow flow for the throttle boddies but not much few MM- but thats it.
Engine has adjustable pullys and lightened flywheel.
Built, Ivaed, Drove and now Sold - 2011 MNR VORTX RT+ 2000cc Zetec on R1 Throttle boddies.
|
|
|
.jpg)
