L98 Cam experts?
Thread Starter
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
L98 Cam experts?
Most popular cams seem to have approx .020 more lift and approx 10 degrees more duration on the exhaust.The principle of more exhaust I understand.
The LT1 hot cam is the only one with the same lift , 0.525 both sides with 10 degree longer exh duration.
What effect does having more intake do in relation to a similar cam with the split specs?
Reason.
Currently have stock block L98 A4 with ZZ4 cam(.474 /.510 - 208 /221) , headers, siamised base.Has gone 13.1 .Car kicks **** , mods have taken it from 13.9 to 13.1 but mph has only gone from 99 to 102.Others with similar ET's seem to have higher trap speeds.
If I was to run the hot cam I have with 1.5s rockers that would give .490 both sides with more duration than the ZZ4.
How would this affect performance?
Or do I do the full hot cam / 1.6 option.With 3.07s do I have enough to run this option.
NB .No cost options , have everthing in my "for future use" box.
The LT1 hot cam is the only one with the same lift , 0.525 both sides with 10 degree longer exh duration.
What effect does having more intake do in relation to a similar cam with the split specs?
Reason.
Currently have stock block L98 A4 with ZZ4 cam(.474 /.510 - 208 /221) , headers, siamised base.Has gone 13.1 .Car kicks **** , mods have taken it from 13.9 to 13.1 but mph has only gone from 99 to 102.Others with similar ET's seem to have higher trap speeds.
If I was to run the hot cam I have with 1.5s rockers that would give .490 both sides with more duration than the ZZ4.
How would this affect performance?
Or do I do the full hot cam / 1.6 option.With 3.07s do I have enough to run this option.
NB .No cost options , have everthing in my "for future use" box.
Le Mans Master
Joined: Apr 2005
Posts: 8,077
Likes: 4
From: Scarborough ONTARIO
read this one i have tken some time to write off:
http://forums.corvetteforum.com/show...76&forum_id=48
http://forums.corvetteforum.com/show...76&forum_id=48
