Help.. Anybody Got ZZ4 Camshaft Data?
Thread Starter
Safety Car
Joined: May 1999
Posts: 3,651
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From: Atlantis
Cruise-In I Veteran
Help.. Anybody Got ZZ4 Camshaft Data?
Hey guys,
Anybody got the camcard data for a ZZ4 camshaft?
I need all the 'event' data if anybody has it or knows a link to it.
Anybody got the camcard data for a ZZ4 camshaft?
I need all the 'event' data if anybody has it or knows a link to it.
Pro
Joined: Jun 2002
Posts: 538
Likes: 7
From: Johnsonville Wi
zz4 data
Don't have a full event cam card, but this from GMPP:
10185071 Hydraulic roller
Lift .474" I., .510"E.
Duration @.050:208 degree I., 221 E.
This is with nominal 1.5 rockers
Pretty skimpy, but it's GMPP
Daffy
10185071 Hydraulic roller
Lift .474" I., .510"E.
Duration @.050:208 degree I., 221 E.
This is with nominal 1.5 rockers
Pretty skimpy, but it's GMPP
Daffy
Pro
Joined: Jun 2002
Posts: 538
Likes: 7
From: Johnsonville Wi
zz4 data
I thought that I'd add this-
I don't know why you need the data but I have run this cam in the past and (in a zz4 motor with L98 heads) it has good low end torque, plenty of low rpm vacuum, runs out of steam at about 5,500 rpms. No driveability issues at all, but few thrills either. I think this cam is a good compliment to the L98 heads, can't say if it would be the power loser with better heads.
I don't know why you need the data but I have run this cam in the past and (in a zz4 motor with L98 heads) it has good low end torque, plenty of low rpm vacuum, runs out of steam at about 5,500 rpms. No driveability issues at all, but few thrills either. I think this cam is a good compliment to the L98 heads, can't say if it would be the power loser with better heads.
Thread Starter
Safety Car
Joined: May 1999
Posts: 3,651
Likes: 5
From: Atlantis
Cruise-In I Veteran
Thanks for the info Daffy2,
I may end up not using it but thought I'd go through the motions of verying the one I have conforms to the mfg. specs.
At this point I'm leaning toward the Lingenfelter 219.
A couple of other candidates are the LT4 Hot Cam,
TPIS ZZ-9 or ZZ-409.
Not sure at the moment but while I'm deciding I'd like the cam data on the Zz4 just to measure it myself.
The duration and lift specs only seems a little like looking through a telescope backwards, know what I mean?
I may end up not using it but thought I'd go through the motions of verying the one I have conforms to the mfg. specs.
At this point I'm leaning toward the Lingenfelter 219.
A couple of other candidates are the LT4 Hot Cam,
TPIS ZZ-9 or ZZ-409.
Not sure at the moment but while I'm deciding I'd like the cam data on the Zz4 just to measure it myself.
The duration and lift specs only seems a little like looking through a telescope backwards, know what I mean?
Pro
Joined: Jun 2002
Posts: 538
Likes: 7
From: Johnsonville Wi
cam specs
Like I said, it's GMPP data and skimpy. But maybe I can help you more:
I swapped the zz4 (zz3 actually, but same cam / heads) for a zz430, so now I'm running basically a zz4 with the HOT cam and good heads. The HOT cam in this new combo (mind that it's 1.6 roller rockers) has good streetability (just as good as the zz4 cam), good vac. down low, power to 6,500, a bit of valve train noise (whirring, not solid lifter tapping). Check Comp. and Crane cams info. for comparisons to the HOT cam. I would trade some "driveabilty" for more power, as the HOT cam is really quite mild from a performance viewpoint.
I swapped the zz4 (zz3 actually, but same cam / heads) for a zz430, so now I'm running basically a zz4 with the HOT cam and good heads. The HOT cam in this new combo (mind that it's 1.6 roller rockers) has good streetability (just as good as the zz4 cam), good vac. down low, power to 6,500, a bit of valve train noise (whirring, not solid lifter tapping). Check Comp. and Crane cams info. for comparisons to the HOT cam. I would trade some "driveabilty" for more power, as the HOT cam is really quite mild from a performance viewpoint.
Thread Starter
Safety Car
Joined: May 1999
Posts: 3,651
Likes: 5
From: Atlantis
Cruise-In I Veteran
Well it looks like I'm going to have to 'spring' for another set of springs.
I've looked through all the ones I have and none of them will allow running over .495 lift without coilbind.
So off I go to get another set..
Probably the whirring sound is the result of over a half inch of lift from the HotCam. The 'stuff' is just moving around about twice as far as before.
I'm going to go ahead and throw this ZZ4 cam into one of my engines and see how I like it.
Don't want to sound like 'less than a purist' but I like the idle sound of a large overlap cam probably as much as I like the way they run.
Just love that rap-rap-rap sound. But I like them to be all through with that by around 1500~1800 RPM.
Anyway I'm looking for a HotCam now. I believe GM engineering has all the resources at their disposal to make a good cam that will live a long life and be kind to the rest of the valvetrain.
I've looked through all the ones I have and none of them will allow running over .495 lift without coilbind.
So off I go to get another set..
Probably the whirring sound is the result of over a half inch of lift from the HotCam. The 'stuff' is just moving around about twice as far as before.
I'm going to go ahead and throw this ZZ4 cam into one of my engines and see how I like it.
Don't want to sound like 'less than a purist' but I like the idle sound of a large overlap cam probably as much as I like the way they run.
Just love that rap-rap-rap sound. But I like them to be all through with that by around 1500~1800 RPM.
Anyway I'm looking for a HotCam now. I believe GM engineering has all the resources at their disposal to make a good cam that will live a long life and be kind to the rest of the valvetrain.
