Building Engine cam comments appreciated
Thread Starter
CF Senior Moments Member
Joined: Jan 2004
Posts: 1,329
Likes: 1
From: Oklahoma City Oklahoma
Building Engine cam comments appreciated
Just recently purchased A&A S/C - but it's going on my stock motor for now.
Have so far: (from SSMITH512 - thank you Steve
)
LS2 block bored to 4.005"
Diamond forged pistons -14cc
Diamond Plasma Moly rings
Crower forged I-beam rods 6.125"
Eagle forged 4" stroke crank
Clevite "H" main and rod bearings
Durabond cam bearings
ARP main stud hardware
From other sources:
1630 AFR 225 72cc with springs good for 650 (so I'm told)
(These items above are scheduled for seperate delivery today)
What I'm considering and what I would like to learn more about and understand the differences...
cam choices
220-232 duration with 117 LSA (saw in another thread mentions good daily driveability - a must for me)
224 -228 duration with 114 LSA (??) 590-or somethng - suggestions?
other suggestions / reasons?
Daily driver - smooth operation (not looking for lope) however do want POWER with driveability
What difference in power does the lift make? 550 vs 595 for example? I understand that above 600 - even with good springs longevity can be an issue?
appreciate you input!!
Have so far: (from SSMITH512 - thank you Steve
)LS2 block bored to 4.005"
Diamond forged pistons -14cc
Diamond Plasma Moly rings
Crower forged I-beam rods 6.125"
Eagle forged 4" stroke crank
Clevite "H" main and rod bearings
Durabond cam bearings
ARP main stud hardware
From other sources:
1630 AFR 225 72cc with springs good for 650 (so I'm told)
(These items above are scheduled for seperate delivery today)
What I'm considering and what I would like to learn more about and understand the differences...
cam choices
220-232 duration with 117 LSA (saw in another thread mentions good daily driveability - a must for me)
224 -228 duration with 114 LSA (??) 590-or somethng - suggestions?
other suggestions / reasons?
Daily driver - smooth operation (not looking for lope) however do want POWER with driveability
What difference in power does the lift make? 550 vs 595 for example? I understand that above 600 - even with good springs longevity can be an issue?
appreciate you input!!
Team Owner
Joined: May 2003
Posts: 23,480
Likes: 9
From: East Meadow NY
St. Jude Donor '12
Both cams will give you good driveability with a proper tune as neither one is particularly radical. I defer to the tuners/more knowledgeable people on which is better for an FI application.
Thread Starter
CF Senior Moments Member
Joined: Jan 2004
Posts: 1,329
Likes: 1
From: Oklahoma City Oklahoma
Spoke with Tony Mamo at ARF and ordered a cam!
Looking for good power across the range/curve with daily driver driveability not looking for radical lope - etc.
Specs:
224 232 LSA 114
Looking for good power across the range/curve with daily driver driveability not looking for radical lope - etc.
Specs:
224 232 LSA 114
Former Vendor
Joined: Feb 2004
Posts: 10,876
Likes: 8
From: Las Vegas NV
St. Jude Donor '06 & '12
Because the plasma moly rings were already installed in this built motor (he bought it off a member), and hellfire rings destroy cylinders after any lenth of time..
Not to mention there are probably a few hundred guys on this forum running boosted motors with plasma moly rings with zero issues. Not that their particularly reccomended, but neither are hellfires.
Not to mention there are probably a few hundred guys on this forum running boosted motors with plasma moly rings with zero issues. Not that their particularly reccomended, but neither are hellfires.
Pro
Joined: Mar 2007
Posts: 651
Likes: 0
From: Ashland Kentucky
Because the plasma moly rings were already installed in this built motor (he bought it off a member), and hellfire rings destroy cylinders after any lenth of time..
Not to mention there are probably a few hundred guys on this forum running boosted motors with plasma moly rings with zero issues. Not that their particularly reccomended, but neither are hellfires.
Not to mention there are probably a few hundred guys on this forum running boosted motors with plasma moly rings with zero issues. Not that their particularly reccomended, but neither are hellfires.
Melting Slicks
Joined: Oct 2005
Posts: 2,877
Likes: 9
From: Ottawa Ontario
Ya..I have never heard of this either. Most builders seem to recommend the file fit Hellfire rings on the boosted built motors.
A good cam spec for your app and nice drivability would be 217 -228 duration with 115 LSA.
A good cam spec for your app and nice drivability would be 217 -228 duration with 115 LSA.
Last edited by MotleyDrew; Nov 15, 2008 at 10:50 AM.
Former Vendor
Joined: Mar 2008
Posts: 2,279
Likes: 1
Because the plasma moly rings were already installed in this built motor (he bought it off a member), and hellfire rings destroy cylinders after any lenth of time..
Not to mention there are probably a few hundred guys on this forum running boosted motors with plasma moly rings with zero issues. Not that their particularly reccomended, but neither are hellfires.
Not to mention there are probably a few hundred guys on this forum running boosted motors with plasma moly rings with zero issues. Not that their particularly reccomended, but neither are hellfires.
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Former Vendor
Joined: Feb 2004
Posts: 10,876
Likes: 8
From: Las Vegas NV
St. Jude Donor '06 & '12
I was DEAD SET on using them on my last build. But I had seen on tech where the material used in the rings is designed for EXTREME abuse, and in street conditions cause excessive accelerated cylinder wear.
I called Federal Mogul, gave them my specs, and requested to use the Hellfires. They transfered me over to their engineer that works in Speed Pro product development dept.
According to Federal Mogul, the Hellfire rings are ONLY to be used in the harshest of conditions, due to their extremely hard design. Being that they are soo hard they not only take forever to seal in a street application, but the rings beat the hell out of the cylinder wall. They are to only be used in the most severe conditions, or where teardowns are frequent.
I explained to them that my car would be making some pretty serious boost, but they said due to the street nature of the car, its just not reccomended (Per Speed Pro-Hellfire). They only reccomended them for racing type applications..
I did back thet guys reccomendations up by some data on the net, so i'll try and find it and shoot it over to you..
I'm sure there are alot of guys running them with no problems, but according to the manufacturer, its not reccomended..
I called Federal Mogul, gave them my specs, and requested to use the Hellfires. They transfered me over to their engineer that works in Speed Pro product development dept.
According to Federal Mogul, the Hellfire rings are ONLY to be used in the harshest of conditions, due to their extremely hard design. Being that they are soo hard they not only take forever to seal in a street application, but the rings beat the hell out of the cylinder wall. They are to only be used in the most severe conditions, or where teardowns are frequent.
I explained to them that my car would be making some pretty serious boost, but they said due to the street nature of the car, its just not reccomended (Per Speed Pro-Hellfire). They only reccomended them for racing type applications..
I did back thet guys reccomendations up by some data on the net, so i'll try and find it and shoot it over to you..
I'm sure there are alot of guys running them with no problems, but according to the manufacturer, its not reccomended..
Burning Brakes
Joined: Nov 2006
Posts: 768
Likes: 25
From: Cape Cod
I was DEAD SET on using them on my last build. But I had seen on tech where the material used in the rings is designed for EXTREME abuse, and in street conditions cause excessive accelerated cylinder wear.
I called Federal Mogul, gave them my specs, and requested to use the Hellfires. They transfered me over to their engineer that works in Speed Pro product development dept.
According to Federal Mogul, the Hellfire rings are ONLY to be used in the harshest of conditions, due to their extremely hard design. Being that they are soo hard they not only take forever to seal in a street application, but the rings beat the hell out of the cylinder wall. They are to only be used in the most severe conditions, or where teardowns are frequent.
I explained to them that my car would be making some pretty serious boost, but they said due to the street nature of the car, its just not reccomended (Per Speed Pro-Hellfire). They only reccomended them for racing type applications..
I did back thet guys reccomendations up by some data on the net, so i'll try and find it and shoot it over to you..
I'm sure there are alot of guys running them with no problems, but according to the manufacturer, its not reccomended..
I called Federal Mogul, gave them my specs, and requested to use the Hellfires. They transfered me over to their engineer that works in Speed Pro product development dept.
According to Federal Mogul, the Hellfire rings are ONLY to be used in the harshest of conditions, due to their extremely hard design. Being that they are soo hard they not only take forever to seal in a street application, but the rings beat the hell out of the cylinder wall. They are to only be used in the most severe conditions, or where teardowns are frequent.
I explained to them that my car would be making some pretty serious boost, but they said due to the street nature of the car, its just not reccomended (Per Speed Pro-Hellfire). They only reccomended them for racing type applications..
I did back thet guys reccomendations up by some data on the net, so i'll try and find it and shoot it over to you..
I'm sure there are alot of guys running them with no problems, but according to the manufacturer, its not reccomended..
lol