Notes on the XD cam from Professor Ko
03-25-2003, 02:42 AM
#1
Senior Member
Thread Starter
Join Date: May 2001
Location: Las Vegas, NV
Posts: 432
Likes: 0
Received 0 Likes
on
0 Posts
Vehicle: 2009 Hyundai Sonata Limited V6, 2008 Nissan Xterra Off-Road
Notes on the XD cam from Professor Ko
http://www.hyundaiperformance.com/forums/t...pic.php?t=23777
Professor Ko (owner of Kuk's Auto in Korea) has given us a few thoughts on installing the XD cam into the Beta 1 engine. Here is a quote from the e-mail I received on it:
[ March 25, 2003, 09:42 AM: Message edited by: 4doorGL ]
Professor Ko (owner of Kuk's Auto in Korea) has given us a few thoughts on installing the XD cam into the Beta 1 engine. Here is a quote from the e-mail I received on it:
QUOTE
Basically, there are several
different issues. He says that some of the tuning shops in Korea
used to use the Beta II cam but not anymore. He has dyno tested
these and they do show some mid-range power increase, but there is
a high-rpm power _decrease_. In addition, there is a difference in
the sensor notch for the TDC detector sensor, meaning that it
affects the timing that the computer sees. Additionally, there are
some issues with the different lobe widths. The Beta II cam's lobe
is a bit more narrow, which will put more pressure on a smaller
area of the HLA. That, along with the issue of running a lobe ramp
designed for a solid lifter on a hydraulic lifter, could result
in cam wear issues.
different issues. He says that some of the tuning shops in Korea
used to use the Beta II cam but not anymore. He has dyno tested
these and they do show some mid-range power increase, but there is
a high-rpm power _decrease_. In addition, there is a difference in
the sensor notch for the TDC detector sensor, meaning that it
affects the timing that the computer sees. Additionally, there are
some issues with the different lobe widths. The Beta II cam's lobe
is a bit more narrow, which will put more pressure on a smaller
area of the HLA. That, along with the issue of running a lobe ramp
designed for a solid lifter on a hydraulic lifter, could result
in cam wear issues.
[ March 25, 2003, 09:42 AM: Message edited by: 4doorGL ]
04-04-2003, 02:36 AM
#3
Senior Member
Join Date: Nov 2001
Posts: 1,269
Likes: 0
Received 0 Likes
on
0 Posts
But, it only refers to the Beta II (aka GT or XD) Cams right? If I have a 2.0 97 Tib, I still get some gains if I install the 1.8 Beta I admission Cam right?
Also, SR is not selling this camshaft anymore, so, anyone knows the part number for the Intake 1.8 Beta I ?
Also, SR is not selling this camshaft anymore, so, anyone knows the part number for the Intake 1.8 Beta I ?