View Poll Results: Which 8 cams do you like for autocross/timeattack racing with Supertech dual springs?

GSC2 274

51.28%

Kelford 272

27.35%

Forced Performance 4R

0.85%

Cosworth M2

6.84%

Tomei 272

3.42%

HKS 280

2.56%

JUN 272

7.69%

Voters: 117. You may not vote on this poll

Which cams to go with? GSC2, Kelford, JUN, Tomei

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Sep 22, 2010 | 10:44 PM

#31

03whitegsr

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From: Utah

I'm curious what the duration numbers at 0.050" are on the GSC S2 cams.

Spec wise, they are using essentially the same lobe centerlines as the FP4R cams. Lift is almost the same between them as well. The duration is also very similar, but the GSCs are listed at 1mm instead of 0.050" so a direct comparison isn't possible.

Sep 23, 2010 | 12:30 PM

#32

DSMMR21

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From: Level Green PA

Quote:

Originally Posted by compscibOi

Kelfords. /endthread

Throw in some SuperTech dual valve springs while you're in there for some added insurance if you're concerned about the valvetrain.

agreed

Sep 23, 2010 | 03:48 PM

#33

BLKCarbonEVO

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From: VaBeach, VA

GSC should be the only route you go. I gained 90hp, less boost, going from HKS 272/280 to my custom GSC 274s and didn't lose any spool. Tell why you would want to go with anything any different? You wouldn't, trust me...

Attachment 338718

Mikey

Sep 23, 2010 | 10:11 PM

#34

DynoTechnik

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From: Taos

Tomei are great but $$ but you'll have them forever

Sep 24, 2010 | 08:58 AM

#35

JohnBradley

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From: Northwest

Hmmm, S2?

Sep 24, 2010 | 09:14 AM

#36

KaRboN

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From: New YoRk

S2 hands down ...

Sep 24, 2010 | 09:23 AM

#37

MuslimEvoFreak

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From: Lake In The HIlls

Evo 8... Kelfords
Evo 9... S2s

Sep 24, 2010 | 09:24 AM

#38

MuslimEvoFreak

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From: Lake In The HIlls

Quote:

Originally Posted by BLKCarbonEVO

This is good but the OP has an 03 not an Evo 9.

Sep 24, 2010 | 09:26 AM

#39

JohnBradley

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From: Northwest

I have never made as much power on Kelford 272s in any car (8, 9, 10) as I do with GSC S2. They are typically 20whp above the Kelfords.

Sep 24, 2010 | 09:32 AM

#40

MuslimEvoFreak

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From: Lake In The HIlls

Hey John are you referring to the new S2s or the older ones? I am assuming the new ones correct?

Sep 24, 2010 | 11:04 AM

#41

JohnBradley

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From: Northwest

Correct the new ones, not the ones used in the AMS test.

Sep 24, 2010 | 11:12 AM

#42

jameswwt

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Joined: Aug 2010

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From: The Universe

Quote:

Originally Posted by JohnBradley

Correct the new ones, not the ones used in the AMS test.

Hi John,how do we tell which is the new and older gsc 2 cams?

Sep 24, 2010 | 11:32 AM

#43

JohnBradley

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From: Northwest

Intake cam has a batch number stamp on it, the cam card (if you bought them new) is the easiest way. All the cams made in the last year or so are the "new" style.