Help with cam identification (and specs)! Supposed to be an HPE-S!
07-10-2008, 06:25 PM
#1
Staging Lane
Thread Starter
iTrader: (1)
Join Date: Jan 2004
Location: Vilano Beach, FL
Posts: 59
Likes: 0
Received 0 Likes
on
0 Posts
Help with cam identification (and specs)! Supposed to be an HPE-S! **EDIT**
Appears this is NOT an HPE-S - see new questions below
Howdy Folks!
I bought this cam a L O N G time ago and to keep it short - I'm planning on installing it very soon.
I bought it advertised as an HPE-S grind which I understand is really close to a MS3 or LG GX3. It's in mint condition so if it's the correct part, I should be in good shape (I believe the seller said ~1500 miles).
The box is a Comp Cam but the sticker seems to conflict (and I think it's probably just a box he had lying around).
So on the cam itself, etched right into the end:
LS1 3724R 3731R
HR 114
+4
49440-06
FYI, I tried using the comp cam search and didn't get any hits on any of the numbers. Any help is appreciated (I might give HPE a call if nobody knows - just hated to bug them).
Appears this is NOT an HPE-S - see new questions below
Howdy Folks!
I bought this cam a L O N G time ago and to keep it short - I'm planning on installing it very soon.
I bought it advertised as an HPE-S grind which I understand is really close to a MS3 or LG GX3. It's in mint condition so if it's the correct part, I should be in good shape (I believe the seller said ~1500 miles).
The box is a Comp Cam but the sticker seems to conflict (and I think it's probably just a box he had lying around).
So on the cam itself, etched right into the end:
LS1 3724R 3731R
HR 114
+4
49440-06
FYI, I tried using the comp cam search and didn't get any hits on any of the numbers. Any help is appreciated (I might give HPE a call if nobody knows - just hated to bug them).
Last edited by DTZ06; 07-11-2008 at 08:22 AM.
07-10-2008, 07:48 PM
#5
Staging Lane
Thread Starter
iTrader: (1)
Join Date: Jan 2004
Location: Vilano Beach, FL
Posts: 59
Likes: 0
Received 0 Likes
on
0 Posts
Cool thanks, I see from the catalog those two lobes look like this:
3724R 3724 277 228 149 .346 .076 .062 .519 .554 .588
3731R 3731 291 242 163 .359 .102 .087 .539 .574 .610
The main numbers being a 228/242 duration and a .588/.610 lift (1.7 rockers)
So, umm, what heck [?]
3724R 3724 277 228 149 .346 .076 .062 .519 .554 .588
3731R 3731 291 242 163 .359 .102 .087 .539 .574 .610
The main numbers being a 228/242 duration and a .588/.610 lift (1.7 rockers)
So, umm, what heck [?]
07-10-2008, 09:29 PM
#6
Staging Lane
Thread Starter
iTrader: (1)
Join Date: Jan 2004
Location: Vilano Beach, FL
Posts: 59
Likes: 0
Received 0 Likes
on
0 Posts
Let's say the cam is exactly what the lobe profile indicates (someone on another board mentioned a couple of tuners would do a profiling for like $25) - I wonder how this stick will perform? I mean it's very close to an MS3:
MS3.........237/242 .603/.609
DT CAM....228/242 .588/.610
So a bit less on the intake duration and lift.
This would be used in C5Z06 with stock heads, PRC extreme springs, LT's, CAI, ASP pulley. Side note: I've been thinking it might be worth the extra money for a set of the revised PRC Stage I LS6's (the delta of just springs vs. new heads plus selling my 243's).
MS3.........237/242 .603/.609
DT CAM....228/242 .588/.610
So a bit less on the intake duration and lift.
This would be used in C5Z06 with stock heads, PRC extreme springs, LT's, CAI, ASP pulley. Side note: I've been thinking it might be worth the extra money for a set of the revised PRC Stage I LS6's (the delta of just springs vs. new heads plus selling my 243's).
Trending Topics
07-11-2008, 08:21 AM
#8
Staging Lane
Thread Starter
iTrader: (1)
Join Date: Jan 2004
Location: Vilano Beach, FL
Posts: 59
Likes: 0
Received 0 Likes
on
0 Posts
Wow, that's pretty stout for a stock LS6 intake/TB (I assumed those were at least ported/port matched?)
07-11-2008, 10:55 PM
#10
TECH Regular
iTrader: (1)
Join Date: Oct 2003
Location: Bloomington, MN
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
Well, if you can't check from whoever you got it from you could call comp and ask them, although I have heard mixed results from doing that.
I put it in the DC calculator off here and here are some results (assuming stock heads/gaskets)
8.02:1 DCR
44 IVC @.05
7* overlap at .05
I'm not sure if this helps you or not but might get others to chime in. The DCR is a little low I think, but its a pretty big cam. Thee 44* IVC point puts you in the mid 6k range I think. 7* overlap is not too bad of an idle. I think it would make good power with pretty good drivability, but I am in no way an expert, just trying to help you get some more advice.
I put it in the DC calculator off here and here are some results (assuming stock heads/gaskets)
8.02:1 DCR
44 IVC @.05
7* overlap at .05
I'm not sure if this helps you or not but might get others to chime in. The DCR is a little low I think, but its a pretty big cam. Thee 44* IVC point puts you in the mid 6k range I think. 7* overlap is not too bad of an idle. I think it would make good power with pretty good drivability, but I am in no way an expert, just trying to help you get some more advice.
07-12-2008, 06:21 PM
#14
Staging Lane
Thread Starter
iTrader: (1)
Join Date: Jan 2004
Location: Vilano Beach, FL
Posts: 59
Likes: 0
Received 0 Likes
on
0 Posts
Think I'll put this up for sale here and get Mike to get me a cam. I appreciate all the info!
