L98 Max Effort Cam
08-17-2015, 03:42 AM
#1
Teching In
Thread Starter
Join Date: May 2014
Posts: 27
Likes: 0
Received 0 Likes
on
0 Posts
L98 Max Effort Cam Hey guys, Ive recently bought a L98 engine (basically a L76 without DOD). Its going in front of a stalled auto.
I had a LS1 with a EPS 234/246 6XX 6XX 111LSA and i loved it. It pulled from 3500 to redline (6500 Stock bottom end) And would have kept climbing.
I was looking on the EPS website at the rectangle port head cams and noticed they have a massive split.
Why is that so? when none of the other shops have this in their cams.
I had a LS1 with a EPS 234/246 6XX 6XX 111LSA and i loved it. It pulled from 3500 to redline (6500 Stock bottom end) And would have kept climbing.
I was looking on the EPS website at the rectangle port head cams and noticed they have a massive split.
Why is that so? when none of the other shops have this in their cams.
08-17-2015, 10:35 AM
#2
Hey guys, Ive recently bought a L98 engine (basically a L76 without DOD). Its going in front of a stalled auto.
I had a LS1 with a EPS 234/246 6XX 6XX 111LSA and i loved it. It pulled from 3500 to redline (6500 Stock bottom end) And would have kept climbing.
I was looking on the EPS website at the rectangle port head cams and noticed they have a massive split.
Why is that so? when none of the other shops have this in their cams.
I had a LS1 with a EPS 234/246 6XX 6XX 111LSA and i loved it. It pulled from 3500 to redline (6500 Stock bottom end) And would have kept climbing.
I was looking on the EPS website at the rectangle port head cams and noticed they have a massive split.
Why is that so? when none of the other shops have this in their cams.
Rectangle port heads respond better to more exhaust duration than the cathedral port heads.
KW
08-17-2015, 11:03 AM
#3
Teching In
Thread Starter
Join Date: May 2014
Posts: 27
Likes: 0
Received 0 Likes
on
0 Posts
http://www.engpwrsys.com/index.php?act=viewCat&catId=19
08-25-2015, 12:02 PM
#7
TECH Addict
Rectangle port heads are all about getting air IN... not so much for letting it out. Little door has to be held open longer.
As to why EPS chose to incorporate that much split is beyond me. It would make sense with a fat PD blower on top, I guess.
Then again, your ls1 cam had a 12° split, which is double the "standard" for cathedral heads. The cathedral port heads do not require the massive exhaust bias because the exhaust side flows nearly as well as the intake side (~75%, which is pretty awesome).
As to why EPS chose to incorporate that much split is beyond me. It would make sense with a fat PD blower on top, I guess.
Then again, your ls1 cam had a 12° split, which is double the "standard" for cathedral heads. The cathedral port heads do not require the massive exhaust bias because the exhaust side flows nearly as well as the intake side (~75%, which is pretty awesome).