LS1TECH - Camaro and Firebird Forum Discussion

Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Ms4 camspecs and drc!

Thread Tools
 
Search this Thread
 
Old Feb 20, 2010 | 01:34 PM
Share
  #1  
Jrp1978's Avatar
Jrp1978
Thread Starter
TECH Resident
iTrader: (10)
 
Joined: Feb 2007
Posts: 854
Likes: 0
Default Ms4 camspecs and drc!
I was just wondering anyone off hand had these specs and with that cam in a 402 with 11.2 compression what would drc be !
Reply
0
Old Feb 21, 2010 | 02:42 PM
Share
  #2  
SSdimension's Avatar
SSdimension
Launching!
iTrader: (19)
 
Joined: Apr 2009
Posts: 243
Likes: 0
From: Dallas, Tx
Default
Originally Posted by Jrp1978
I was just wondering anyone off hand had these specs and with that cam in a 402 with 11.2 compression what would drc be !
Magic Stick V.4 239/242, .649"/.609" lift
Reply
0
Old May 5, 2010 | 02:50 PM
Share
  #3  
bww3588's Avatar
bww3588
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default
does anyone have the actual specs for an MS4 besides the duration and lift. like the ICL and opening and closing points? basically everything on the cam card.
Reply
0
Old May 5, 2010 | 04:14 PM
Share
  #4  
Squirts11's Avatar
Squirts11
TECH Resident
iTrader: (14)
 
Joined: Sep 2009
Posts: 897
Likes: 4
From: OKC, OK
Default
Originally Posted by bww3588
does anyone have the actual specs for an MS4 besides the duration and lift. like the ICL and opening and closing points? basically everything on the cam card.
Lol. Yes, the LSA and ICL are both needed when configuring DCR.
Reply
0
Old May 5, 2010 | 04:16 PM
Share
  #5  
bww3588's Avatar
bww3588
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default
thats exactly what im trying to do. i was wondering how anyone was going to get the DCR without that info.
Reply
0
Old May 5, 2010 | 04:27 PM
Share
  #6  
Sales2@Texas-speed's Avatar
Sales2@Texas-speed
LS1Tech Premium Sponsor
iTrader: (5)
 
Joined: Jan 2008
Posts: 5,053
Likes: 7
From: Texas!
Default
IVC is 50ºABDC for anyone wanting to do the calculations with the MS4. With 11.2:1 static, you net about 8.25:1 dynamic. 11.5:1 dynamic would get you right at 8.5:1 dynamic, for whatever that's worth to anybody.
__________________


Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!

COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Reply
0
Old May 5, 2010 | 04:29 PM
Share
  #7  
bww3588's Avatar
bww3588
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default
Originally Posted by Matt@Texas-Speed
IVC is 50ºABDC for anyone wanting to do the calculations with the MS4. With 11.2:1 static, you net about 8.25:1 dynamic. 11.5:1 dynamic would get you right at 8.5:1 dynamic, for whatever that's worth to anybody.
thats worth a million bucks to me Matt. thank you very much.

one more question, is that a .050 lifter rise?
Reply
0

Trending Topics

Old May 5, 2010 | 04:30 PM
Share
  #8  
bww3588's Avatar
bww3588
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default
FWIW, im at 11.77 static with my current setup, just trying to keep it pump gas friendly with the dynamic.
Reply
0
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old May 5, 2010 | 04:32 PM
Share
  #9  
Sales2@Texas-speed's Avatar
Sales2@Texas-speed
LS1Tech Premium Sponsor
iTrader: (5)
 
Joined: Jan 2008
Posts: 5,053
Likes: 7
From: Texas!
Default
Originally Posted by bww3588
thats worth a million bucks to me Matt. thank you very much.

one more question, is that a .050 lifter rise?
Sorry, the 50º IVC is @.050. DCR is calculated using the .006" numbers.....the IVC @.006" is 74.5ºABDC.
__________________


Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!

COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Reply
0
Old May 5, 2010 | 04:34 PM
Share
  #10  
bww3588's Avatar
bww3588
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default
looks like im going to be at 9.24 dynamic. anyone want to check it for me...

4.030 bore
3.622 stroke
6.098 rod
.040 gasket
4.130 gasket bore
.005 IN the hole
3.2 cc valve releifs in flat top pistons
58cc head
MS4 cam installed straight up. (i have an adjustable timing set so i can retard or advance it as neccessary)
Reply
0
Old May 5, 2010 | 04:34 PM
Share
  #11  
bww3588's Avatar
bww3588
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default
Originally Posted by Matt@Texas-Speed
Sorry, the 50º IVC is @.050. DCR is calculated using the .006" numbers.....the IVC @.006" is 74.5ºABDC.
the online calculator i used wants .050 numbers but it askes for that value + 15 degrees for some reason...
Reply
0
Old May 5, 2010 | 04:36 PM
Share
  #12  
bww3588's Avatar
bww3588
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default
the only reason im using the 4.130 gasket is because i cant find anything smaller with the .040 thickness....unless someone can point me to one if that would be a better choice.
Reply
0
Old May 5, 2010 | 04:38 PM
Share
  #13  
Sales2@Texas-speed's Avatar
Sales2@Texas-speed
LS1Tech Premium Sponsor
iTrader: (5)
 
Joined: Jan 2008
Posts: 5,053
Likes: 7
From: Texas!
Default
The ones that use the +15º use that as a basic approximation to get the event at .006"
__________________


Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!

COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Reply
0
Old May 5, 2010 | 04:44 PM
Share
  #14  
Sales2@Texas-speed's Avatar
Sales2@Texas-speed
LS1Tech Premium Sponsor
iTrader: (5)
 
Joined: Jan 2008
Posts: 5,053
Likes: 7
From: Texas!
Default
We usually stock 4.035" bore .040" gaskets as well as some 4.060", 4.085", etc.

With about 11.7:1 and the IVC @74.5ºABDC it's saying (the larger bore gasket brings your SCR to about 11.65:1 or so), it's right at 8.5:1 DCR. That's assuming the cam and timing set are both perfect and not advances/retarded any....I'd degree it to make sure it's where you want it.
__________________


Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!

COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Reply
0
Old May 5, 2010 | 04:50 PM
Share
  #15  
bww3588's Avatar
bww3588
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default
Originally Posted by Matt@Texas-Speed
We usually stock 4.035" bore .040" gaskets as well as some 4.060", 4.085", etc.

With about 11.7:1 and the IVC @74.5ºABDC it's saying (the larger bore gasket brings your SCR to about 11.65:1 or so), it's right at 8.5:1 DCR. That's assuming the cam and timing set are both perfect and not advances/retarded any....I'd degree it to make sure it's where you want it.
i do plan on degreeing it anyways. would there be any advantages to advancing or retarding the MS4 at all? other than gaining PTV which i dont have issues with.
Reply
0
Old May 5, 2010 | 04:54 PM
Share
  #16  
bww3588's Avatar
bww3588
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default
im leaning toward the 4.085 gasket if it can be had in MLS form .040
Reply
0
Old May 5, 2010 | 04:57 PM
Share
  #17  
Sales2@Texas-speed's Avatar
Sales2@Texas-speed
LS1Tech Premium Sponsor
iTrader: (5)
 
Joined: Jan 2008
Posts: 5,053
Likes: 7
From: Texas!
Default
If you've got the valve relief depth, and are happy with where the VE's lie, then there's no major advantage to advancing or retarding it from there and I'd let her ride.

We stock that Cometic 4.085"x.040" .
__________________


Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!

COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Reply
0
Old May 5, 2010 | 05:06 PM
Share
  #18  
bww3588's Avatar
bww3588
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default
sweet. ill be geting back at you when the time gets closer on the gasket.
Reply
0
Old May 5, 2010 | 05:09 PM
Share
  #19  
Sales2@Texas-speed's Avatar
Sales2@Texas-speed
LS1Tech Premium Sponsor
iTrader: (5)
 
Joined: Jan 2008
Posts: 5,053
Likes: 7
From: Texas!
Default
Cool, let us know when we can help!

Sorry for the hijack, James!
__________________


Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!

COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Reply
0
Old May 5, 2010 | 05:17 PM
Share
  #20  
bww3588's Avatar
bww3588
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default
Originally Posted by Matt@Texas-Speed

Sorry for the hijack, James!
same here. appolagies.
Reply
0
Tags
Back to Subforum
Generation III Internal Engine
View Next Unread
Tampa LS1 Short block Rebuild needed...Calling all shops




Advanced Search

All times are GMT -5. The time now is 03:06 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-04 05:00:17


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE