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JWT S1 cams for turbo

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Old Sep 26, 2006 | 02:15 PM
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Default JWT S1 cams for turbo


Anybody recomend them, how is the idle, like stock or wants to die a slow painfull death??
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Old Sep 26, 2006 | 02:21 PM
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A little on the rough side. 50/50 chance of needing an idle bump. The S2 cams are supposed to idle very close to stock, but we havent installed them yet.
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Old Sep 26, 2006 | 02:33 PM
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They idle GREAT on my car I like the powerband, and the peak hp went up a few hundred rpm's...
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Old Sep 26, 2006 | 02:35 PM
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Originally Posted by Alberto
They idle GREAT on my car I like the powerband, and the peak hp went up a few hundred rpm's...
your car was a beast in many ways. I couldnt believe how nicely those thing idled on your engine. I think it was a superior installation that caused that... ...just kidding.
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Old Sep 26, 2006 | 02:37 PM
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LOL. Sharif seems to be putting out some monster out of his shop, nice!

I would go with the S2/C2 since they seem to be turbo specific. You dont want a cam with too much overlap because it wont build boost as fast as a turbo cam with less overlap.

If you can wait GT Motorsports is comming out with their own set of Turbo SPECIFIC cams that will have very promising gains. Should be out soon. PM me for more info.
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Old Sep 26, 2006 | 02:38 PM
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I love the sound of the exhaust at idle-just enough of a hint that something is up...fwiw I make 10lbs of boost at only 3300rpm's, Id say they are working fine, may not be 100% ideal for turbo specific apps, but certainly a great option.
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Old Sep 26, 2006 | 05:44 PM
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Sorry to hi-jack. Sharif how's the Tomei 268 cams idle/perform compare to the JWT S1 cams since you've tried both. Thanks.
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Old Sep 26, 2006 | 06:33 PM
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I am using the S2 on my motor and it is a beast. Love that cam. Does not sound like stock though. Sounds more like Jesse Ventura announcing it is "payback time" in the movie Predator.
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Old Sep 26, 2006 | 07:20 PM
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alberto,

when did you get you motor back in? Do you still have the TN kit?
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Old Sep 27, 2006 | 05:56 AM
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Originally Posted by Z PHAT Z
Sorry to hi-jack. Sharif how's the Tomei 268 cams idle/perform compare to the JWT S1 cams since you've tried both. Thanks.

The Tomei 268 idles much worse than the S1, and the engine seems a lot smoother with the S1. Power differences were negligable.
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Old Sep 27, 2006 | 08:10 AM
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Does anyone have sound clips of the s2/c2 cams on a built motor on idle
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Old Sep 27, 2006 | 08:22 AM
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Ive been asking for sounds clips for like a year now...NO ONE has any or will take some like they say they will...
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Old Sep 27, 2006 | 08:53 AM
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I doubt that a sound clip will really show anything..honestly.
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Old Sep 27, 2006 | 08:55 AM
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Originally Posted by sandy@forged
I doubt that a sound clip will really show anything..honestly.
hmm, thanks for the feedback sandy...
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Old Sep 27, 2006 | 08:58 AM
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Yeah, I'm a bit interested in the exact difference between the S2/C2 cams.

Sounds more like Jesse Ventura announcing it is "payback time" in the movie Predator.
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Old Sep 27, 2006 | 09:00 AM
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Originally Posted by sandy@forged
I doubt that a sound clip will really show anything..honestly.
more than likely you are correct...there are countless exhaust clips out there and everyone ALWAYS says..." oh this clip just doesnt do it justice" lol I know cuz ive said the shyt too haha
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Old Sep 27, 2006 | 09:10 AM
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S2's are a slightly milder version of the S1 mainly to provide better idle quality, power differences are negligible.

JWT's C series cams always require the valve springs, they're generally a lot more aggressive and will provide insane high end power with great gains in the midrange. Will likely require an idle bump and have a bit of a lope to them....maybe not much.

I'm interested to hear Sharif install the C2's in a car sometime and see how he likes 'em
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Old Sep 27, 2006 | 09:20 AM
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anyone have cams for the "revups" yet?
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Old Sep 27, 2006 | 09:23 AM
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Originally Posted by chimmike
S2's are a slightly milder version of the S1 mainly to provide better idle quality, power differences are negligible.

JWT's C series cams always require the valve springs, they're generally a lot more aggressive and will provide insane high end power with great gains in the midrange. Will likely require an idle bump and have a bit of a lope to them....maybe not much.

I'm interested to hear Sharif install the C2's in a car sometime and see how he likes 'em
Yeah, I'm just interested in seeing how big the difference is, in terms of power gained and idle quality.
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Old Sep 27, 2006 | 09:27 AM
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between what, S1s and C2s? well, with the 1k idle it shouldn't be too bad, however the C2s require valvesprings as they're quite a bit more aggressive. They tend to move the powerband up as well as extend it due to the more aggressive lift and duration. You're going to have a lopey idle, but it's not going to stall if you have a 1k idle. And when I say lopey, i'm not talking big V8 lope, but a mild lope that is slightly noticeable, but the cams SCREAM up top.

I think you'll find JWT's cams are the best on the market in terms of specific research done to the cam design for the specific motor. The main guys at JWT, Clark and Jim, know more about cam design and response than many of the companies that actually build cams for the VQ right now.
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