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}{arlequin's Avatar
 
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Webcam 158 grind

What kind of specs does this cam have? Is it viable in a carb street motor w/ 9.8:1 cr? Looks like it may be a bit on the wilder side? Does this cam lose all the torque in favor of high-rev breathability?

thanks.
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dave
1973,5: one two thweeee!
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Old 01-10-2005, 07:44 AM
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Webcam's web site lists a 158r but not a 158.
I'm probably having another Senior Moment but for some reason that # seems familiar - like they were in my '86 Carrera before I went to 964 cams. I think "158" was stamped on the end of the cams.
-Chris
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Last edited by ChrisBennet; 01-10-2005 at 04:08 PM..
Old 01-10-2005, 04:04 PM
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I have the 158 in my 911, its a nice cam
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Old 01-10-2005, 04:09 PM
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Thanks Chris.

Tim,
Can you give me more details about your engine config?
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1973,5: one two thweeee!
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Old 01-11-2005, 06:23 AM
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If you talk to Webcam let us know what she tells you.
-Chris
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Old 01-11-2005, 06:43 AM
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update: from JD/camgrinder I found out that a 158 is a "hot" SC/CIS cam and 158R is a carb cam.

From *her*, I found out that a 158R is their 2.7S cam with valve lift of .450int and .400exh, for duration .232int and .222exh, between 3.0-3.3mm with .10mm lash

Does that make sense?
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Old 01-11-2005, 11:06 AM
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Quote:
Originally posted by }{arlequin
update: from JD/camgrinder I found out that a 158 is a "hot" SC/CIS cam and 158R is a carb cam.

From *her*, I found out that a 158R is their 2.7S cam with valve lift of .450int and .400exh, for duration .232int and .222exh, between 3.0-3.3mm with .10mm lash

Does that make sense?
Cut me some slack, I'm senile remember? I forgot Camgrinder was Webcam, not Elgin. When I called Webcam a few years ago I spoke to a woman.

I think the cam timing setting value was the same for the 158 as the stock Carrera cams.
-Chris
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Old 01-11-2005, 12:31 PM
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LOL, no no, Chris, you got it all right. (It didn't come through in the text, but I was actually stressing the fact that it WAS a "her".... caught me by surprise b/c it matched your statement )

So no matter how long ago that was, it's still a "her" (which is a nice thing to hear, kinda like those girls on 5th Gear/Mythbusters )
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Old 01-11-2005, 01:05 PM
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Quote:
Originally posted by }{arlequin
LOL, no no, Chris, you got it all right. (It didn't come through in the text, but I was actually stressing the fact that it WAS a "her".... caught me by surprise b/c it matched your statement )

So no matter how long ago that was, it's still a "her" (which is a nice thing to hear, kinda like those girls on 5th Gear/Mythbusters )
Oh, good, thought I was having another Senior Moment there.

Car savvy girls are neat.
I was visiting a friend at his auto repair shop this summer. He employed a girl (college student I think) behind the front desk. While I'm waiting for my friend, a customer tells the girl that his BMW trunk lock isn't working right, unlocks after he locks it or something like that. I was so surprised when she started telling him that lock used an electric/pneumatic latch actuator made by such and such and it was also used by Mercedes. I think she even told him what the problem was.
I said to her "I'm in love! Can you say pneumatic actuator again?"
-Chris
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Old 01-11-2005, 03:48 PM
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Quote:
I forgot Camgrinder was Webcam, not Elgin.
I am not Webcam or Elgin.... I am Dougherty Racing cams now.
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Old 01-11-2005, 04:07 PM
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You probably spoke to Laurie Dunlap over at Web-Cam. She is one of the owners...

Ralph
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Old 01-11-2005, 05:11 PM
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Quote:
Can you give me more details about your engine config?
sure, Im using the 158r in a 2.2L

Its either 9.8 or 9.5:1 cr (Id have too look at my notes)
Twin plugged
930 oil pump
Ports opened to S+ specs
Ti retainers and keepers
Aase springs
TWM throttle bodies
tall PMO manifolds
EFI
carrera tensioners etc.

When I first built the engine I dynoed the car, and with the cam timing I used the torque power fell off at about 6500 rpm. Ive recently done a top end rebuild on the engine and timed the cams so power falls off at about 7000 rpm.

Im at work right now, but I have some dyno sheets somewhere

This engine is alot of fun in a car that weighs less than 2000#
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who are those guys? <<< ( Butch Cassidy and the Sundance Kid)
Rent a GT3RS from us!! Call or e-mail.
Transportation and Track support
Rudtners Racing

'69 911 GT-5
'75 914 GT-3
Authorised Haltech seller and installer
Authorised Unichip installer
BBS wheels
Fikse wheels
Redline motors oils
Swepco
1500 hp chassis dyno
Old 01-11-2005, 06:03 PM
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