S1's vs S2's vs S3's
Nov 23, 2007, 02:45 PM
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S1's vs S2's vs S3's
Greg,
can you give your opinions on where the crossover points are for these 3 cams? I know it won't always be a black/white issue, and I'm sure there are grey areas. But maybe you could say which turbos are good for which cams, or maybe give it in hp targets? I know there have been a lot of questions in the engine/drivetrain forum, and it always seems everyone wants to go bigger on the cams, when it may not necessarily be the right move.
A good example of some of the questions I've seen lately.... 35R on stock block/stock head with the target of 500-550 whp. S1 or S2?
can you give your opinions on where the crossover points are for these 3 cams? I know it won't always be a black/white issue, and I'm sure there are grey areas. But maybe you could say which turbos are good for which cams, or maybe give it in hp targets? I know there have been a lot of questions in the engine/drivetrain forum, and it always seems everyone wants to go bigger on the cams, when it may not necessarily be the right move.
A good example of some of the questions I've seen lately.... 35R on stock block/stock head with the target of 500-550 whp. S1 or S2?
Nov 23, 2007, 02:51 PM
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S1 - Stock-GT30
S2 - GT35+
S3 - 1000whp+
Paul Nelson made 1000whp on S2's. Greg notes that the S2's work very well with a GT35R. S3's are custom grinds (I think) and are for those looking for 1000hp+
Edit; to answer your question, S2
S2 - GT35+
S3 - 1000whp+
Paul Nelson made 1000whp on S2's. Greg notes that the S2's work very well with a GT35R. S3's are custom grinds (I think) and are for those looking for 1000hp+
Edit; to answer your question, S2
Nov 23, 2007, 03:32 PM
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exactly! It's hard to believe a cam capable of 1000 whp is proper for 500 whp. Either the S2 has an extremely large envelope, or the S1's would be a better choice??
Feb 17, 2008, 02:15 PM
#5
Just got my S2's yesterday and while I cant install them today, I was looking at them and the box and noticed that the exhaust centerline is now listed at 113* instead of 115*? I dont mind a change, and I am sure its for the better, but I was curious if this is new or I just missed a post?
JB
JB
Feb 17, 2008, 02:22 PM
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Just got my S2's yesterday and while I cant install them today, I was looking at them and the box and noticed that the exhaust centerline is now listed at 113* instead of 115*? I dont mind a change, and I am sure its for the better, but I was curious if this is new or I just missed a post?
JB
JB
Chris
BTW to the OP on GSC website it gives you pretty good descriptions of what each cam profile is good for.
http://www.power-division.com/home.php?cat=266
Last edited by 2k4EvoVIII; Feb 17, 2008 at 02:25 PM.
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Feb 17, 2008, 04:09 PM
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we tested the following
s1 fp green and gt3076 very good
s2 on a 8mr turbo , very good slight later spool but plenty of torque
s2 on gt3076 Norris designs cars and plenty of gt35r,s the best
s3 hydraulics Norris is gonna test on a gt35r hopefully within a week
s3 solids going in a 1000 bhp car within 3 weeks will keep u guys updated
cheers
s1 fp green and gt3076 very good
s2 on a 8mr turbo , very good slight later spool but plenty of torque
s2 on gt3076 Norris designs cars and plenty of gt35r,s the best
s3 hydraulics Norris is gonna test on a gt35r hopefully within a week
s3 solids going in a 1000 bhp car within 3 weeks will keep u guys updated
cheers
Feb 17, 2008, 04:10 PM
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Here ya go.
GSC S1 Cams for EVO 8
Intake 268 Duration 10.50mm peak lift, 107 degree Centerline
Exhaust 268 Duration 10.50mm Peak Lift, 113 degree Centerline
The GSC Power-Division S1 cams for the Mitsu Evolution 4-8 are designed for those with the stock turbo up to the GT30/50Trim. These cams will not sacrifice any bottom end loss over stock cams; nothing but gains and will promote faster spooling of the upgraded turbos. Gains of 30-55whp (depending on Turbo) have been seen by simply bolting the S1 cams in. Designed for a rev range of 3000-8000rpms, these cams work well on the stock valve springs. 300-450whp camshaft. Idle is slightly rougher than stock.
GSC S2 Cams for EVO 8
Intake 274 Duration 11.2mm peak lift, 107 degree Centerline
Exhaust 272 Duration 11mm Peak Lift, 113 degree Centerline
The S2 cams are designed for those with a GT35R-GT4067 Turbo. No low end power is lost vs the stock cams when used with the larger turbo. The S2 cams will show gains of 50-70whp over the stock cams and in some cases more in the higher RPMS. Great for 2.0L engines revving to 9000rpms or for Stroker motors revving to 8000rpms. The S2 Cams require upgraded valve springs (check out GSC’s Chro-Molly Retainers and single valve spring kit for a perfect upgrade to your valve train). Designed for a rev range of 4000-9000 RPMS(2.0L or 3000-8000 2.2L+), 500-700whp applications. Not suggested for smaller stock appearing turbo setups. S2 cams can run on Factory ECU with custom flashing.
GSC S3 Cams for EVO 8
Solid Lifter Design
Intake 290 Duration, 218@1mm Lift,11.5mm Peak lift, 108 Centerline
Exhaust 290 Duration, 218@1mm Lift, 11.5mm Peak Lift, 116 Centerline
Hydraulic Lifter Design
Intake 280 Duration, 218@1mm Lift,11.50mm peak lift, 108 Centerline
Exhaust 280 Duration, 218@1mm Lift, 11.50mm Peak Lift, 116 Centerline
The S3 Cams are avalible in a Solid Lifter cam and a Hydraulic Lifter Cam for the Evo 4-8 4G63. These cams are ment for the 1000whp+ to take advantage of a very large turbo. these are NOT suggested for anyone running smaller than the GT42R and should not even be considered!
GSC S1 for EVO 9
Intake 268 Duration 10.98mm peak lift, Variable Centerline
Exhaust 266 Duration 10.30mm Peak Lift, 115 degree Centerline
GSC Power-Division's Evo 9 S1 cams are designed for those with a stock turbo all the way to a GT30/50Trim. These cams will not sacrifice any bottom end loss over stock cams; nothing but gains and will promote faster spooling of the upgraded turbos. Gains of 25-40whp (depending on Turbo) have been seen by simply bolting the S1 cams in. Designed for a rev range of 3000-8000rpms, these cams work well on the stock valve springs. 300-450whp camshaft.
GSC S2 Cams for EVO 9
Intake 274 Duration 11.2mm peak lift, Variable Centerline
Exhaust 272 Duration 11mm Peak Lift, 115 degree Centerline
GSC Power-Division Mivec S2 cams are designed for those with a GT35-GT37 Turbo. No low end power is lost vs the stock cams when used with the larger turbo. The S2 cams will show gains of 40-50whp over the stock cams and in some cases more in the higher RPMS. Great for 2.0L engines revving to 9000rpms or for Stroker motors revving to 8000rpms. The S2 Cams require upgraded valve springs (check out GSC’s Chro-Molly Retainers and single valve spring kit for a perfect upgrade to your valve train). Designed for a rev range of 4000-9000 RPMS(2.0L or 3000-8000 2.2L+), 500-700whp applications. Not suggested for smaller stock appearing turbo setups. S2 cams can run on Factory ECU with custom flashing.
GSC S3 Cams for EVO 9
Solid Lifter Design
Intake 290 Duration, 220@1mm Lift,11.5mm Peak lift, Veritable Centerline
Exhaust 290 Duration, 218@1mm Lift, 11.5mm Peak Lift, 116 Centerline
Hydraulic Lifter Design
Intake 280 Duration, 220@1mm Lift,11.5mm peak lift, Veritable Centerline
Exhaust 280 Duration, 218@1mm Lift, 11.25mm Peak Lift, 116 Centerline
The S3 Cams are avalible in a Solid Lifter cam and a Hydraulic Lifter Cam for the Evo 4-8 4G63. These cams are ment for the 1000whp+ to take advantage of a very large turbo. these are NOT suggested for anyone running smaller than the GT42R and should not even be considered!
GSC S1 Cams for EVO 8
Intake 268 Duration 10.50mm peak lift, 107 degree Centerline
Exhaust 268 Duration 10.50mm Peak Lift, 113 degree Centerline
The GSC Power-Division S1 cams for the Mitsu Evolution 4-8 are designed for those with the stock turbo up to the GT30/50Trim. These cams will not sacrifice any bottom end loss over stock cams; nothing but gains and will promote faster spooling of the upgraded turbos. Gains of 30-55whp (depending on Turbo) have been seen by simply bolting the S1 cams in. Designed for a rev range of 3000-8000rpms, these cams work well on the stock valve springs. 300-450whp camshaft. Idle is slightly rougher than stock.
GSC S2 Cams for EVO 8
Intake 274 Duration 11.2mm peak lift, 107 degree Centerline
Exhaust 272 Duration 11mm Peak Lift, 113 degree Centerline
The S2 cams are designed for those with a GT35R-GT4067 Turbo. No low end power is lost vs the stock cams when used with the larger turbo. The S2 cams will show gains of 50-70whp over the stock cams and in some cases more in the higher RPMS. Great for 2.0L engines revving to 9000rpms or for Stroker motors revving to 8000rpms. The S2 Cams require upgraded valve springs (check out GSC’s Chro-Molly Retainers and single valve spring kit for a perfect upgrade to your valve train). Designed for a rev range of 4000-9000 RPMS(2.0L or 3000-8000 2.2L+), 500-700whp applications. Not suggested for smaller stock appearing turbo setups. S2 cams can run on Factory ECU with custom flashing.
GSC S3 Cams for EVO 8
Solid Lifter Design
Intake 290 Duration, 218@1mm Lift,11.5mm Peak lift, 108 Centerline
Exhaust 290 Duration, 218@1mm Lift, 11.5mm Peak Lift, 116 Centerline
Hydraulic Lifter Design
Intake 280 Duration, 218@1mm Lift,11.50mm peak lift, 108 Centerline
Exhaust 280 Duration, 218@1mm Lift, 11.50mm Peak Lift, 116 Centerline
The S3 Cams are avalible in a Solid Lifter cam and a Hydraulic Lifter Cam for the Evo 4-8 4G63. These cams are ment for the 1000whp+ to take advantage of a very large turbo. these are NOT suggested for anyone running smaller than the GT42R and should not even be considered!
GSC S1 for EVO 9
Intake 268 Duration 10.98mm peak lift, Variable Centerline
Exhaust 266 Duration 10.30mm Peak Lift, 115 degree Centerline
GSC Power-Division's Evo 9 S1 cams are designed for those with a stock turbo all the way to a GT30/50Trim. These cams will not sacrifice any bottom end loss over stock cams; nothing but gains and will promote faster spooling of the upgraded turbos. Gains of 25-40whp (depending on Turbo) have been seen by simply bolting the S1 cams in. Designed for a rev range of 3000-8000rpms, these cams work well on the stock valve springs. 300-450whp camshaft.
GSC S2 Cams for EVO 9
Intake 274 Duration 11.2mm peak lift, Variable Centerline
Exhaust 272 Duration 11mm Peak Lift, 115 degree Centerline
GSC Power-Division Mivec S2 cams are designed for those with a GT35-GT37 Turbo. No low end power is lost vs the stock cams when used with the larger turbo. The S2 cams will show gains of 40-50whp over the stock cams and in some cases more in the higher RPMS. Great for 2.0L engines revving to 9000rpms or for Stroker motors revving to 8000rpms. The S2 Cams require upgraded valve springs (check out GSC’s Chro-Molly Retainers and single valve spring kit for a perfect upgrade to your valve train). Designed for a rev range of 4000-9000 RPMS(2.0L or 3000-8000 2.2L+), 500-700whp applications. Not suggested for smaller stock appearing turbo setups. S2 cams can run on Factory ECU with custom flashing.
GSC S3 Cams for EVO 9
Solid Lifter Design
Intake 290 Duration, 220@1mm Lift,11.5mm Peak lift, Veritable Centerline
Exhaust 290 Duration, 218@1mm Lift, 11.5mm Peak Lift, 116 Centerline
Hydraulic Lifter Design
Intake 280 Duration, 220@1mm Lift,11.5mm peak lift, Veritable Centerline
Exhaust 280 Duration, 218@1mm Lift, 11.25mm Peak Lift, 116 Centerline
The S3 Cams are avalible in a Solid Lifter cam and a Hydraulic Lifter Cam for the Evo 4-8 4G63. These cams are ment for the 1000whp+ to take advantage of a very large turbo. these are NOT suggested for anyone running smaller than the GT42R and should not even be considered!
Feb 17, 2008, 04:15 PM
#10
I only have the stats that came off the website so far. I need to take them and use my friend's cam jig to check that. The advertised .050 numbers are as I recall listed as 206 @ .050 which doesnt measure up to the advertised numbers.
When I spec them out I will PM you.
When I spec them out I will PM you.
Feb 17, 2008, 09:14 PM
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I'm plenty happy with the power i made with the s1's, and 388 on DB's dyno is very respectable, but i'm more concerned with what the power translates to on the dragstrip. Like i said previously, i'm very interested to see how these cams perform with the stock turbo. Has this guy in San dog taken his to the track? I might know this guy since i moved back from their about a year ago.