Help with cam identification (and specs)! Supposed to be an HPE-S!
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; Jul 11, 2008 at 08:22 AM.
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 [?]
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).
HPE-S cam is 238/242 .608/.612 115+5LSA I had it in my 01 Z06. Put down 465rwhp 422rwtq with ET LS6 heads and a stock LS6 intake, TB, and fuel system.
I still have my cam card for it
32729R/ 3731R HR 115+5
I still have my cam card for it
32729R/ 3731R HR 115+5
Trending Topics
Wow, that's pretty stout for a stock LS6 intake/TB (I assumed those were at least ported/port matched?)
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
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.
The TB was ported intake was left alone. I did have my transmission internals micro polished when Rodney@RPM rebuilt it. I'm sure that added 10rwhp or so. It was also on a mustang dyno.
Think I'll put this up for sale here and get Mike to get me a cam. I appreciate all the info!
