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Posted by: seanery May 20 2003, 05:34 PM

What cams would/do YOU use?

Doing some research for a new cam.
Low mileage motor (20K in 10 years)

Thanks for the info.

Posted by: Brad Roberts May 20 2003, 05:42 PM

Cam 914 = Single. 911 = Plural.

B

Posted by: Brad Roberts May 20 2003, 05:44 PM

The site is slower than beejesus.. but:

http://www.webcamshafts.com


B

Posted by: Brad Roberts May 20 2003, 05:46 PM

Here you go:

.435 290 252 86a

Strong mid range and top end for high performance mech. street engines. Valve springs recommended.
N/A
N/A
00-232

$155.00

Posted by: Brad Roberts May 20 2003, 05:47 PM

Oops..

I vote for the 494 the 86A is good.. but we need torque.


B

Posted by: Aaron Cox May 20 2003, 05:50 PM

what are your drivin habits / techniques?
i have a cam (mixed w/ weber 44's that have slightly too big of idle jets) that the power band is from 1700 - 6000 rpm. has solid lifters etc, sometimes a pain to get off the line...

Posted by: seanery May 20 2003, 05:57 PM

the plural in the listing refers to the people posting and their "cams".

What kind of other "surprises" might we expect inside the case when doing the cam?

Posted by: Brad Roberts May 20 2003, 06:02 PM

Rust..... just kidding.

Cam/lifters/F+R main seals/cam bearings/oil/filter.

It sounds *tight* I think the bottom end is fine.

B

Posted by: seanery May 20 2003, 06:16 PM

lifters and valve springs from webcam looked like 260 more.

So, about 500 in parts?

Posted by: seanery May 20 2003, 06:23 PM

http://www.cbperformance.com/catalog.asp?ProductID=69

What about these?

Posted by: Brad Roberts May 20 2003, 06:42 PM

Eagle is good.

I have used:

WEB
Engle
Eagle
Crane

WebCam is the only one I have had problems with... but I have also used them the most.

Yes. About 500$ in parts. Typically.. you can reuse the pushrod tube seals and some of the other small ones.

2.0 tin: 150$

The passenger side 2.0 tin is 100$ the drivers side is 50$. A ton of the 2.0 cars had the passenger side tin cut for AirCon. So.. I/everybody who sells parts... gets more for the right side tin piece.

I can repair a 2.0 tin piece cut for AC.. but the time it takes me to do it..... could have bought a good 2.0 piece.

B

Posted by: cgnj May 20 2003, 07:37 PM

Hey,
Try this link. http:///www.importperformanceparts.net
Your in the middle so shipping would be a wash. Cam, lifters and gear you could save 30-40 bucks.

CGNJ

76 2270 (I could have had a flat 6)

Posted by: Brad Roberts May 20 2003, 07:39 PM

Actually... he is in the middle.. the car is on the left. ha ha.


B

Posted by: cgnj May 20 2003, 08:02 PM

Come to think of it, I think they had them dropshipped from Web. Still save 30-40 bucks

CGNJ

Posted by: seanery May 20 2003, 10:46 PM

cgnj.

is the link good?

wouldn't go for me.

Posted by: cgnj May 21 2003, 11:16 AM

Opps,

http://www.importperformanceparts.net

Good customer service, Interesting accent, if it doesn't work, go to http://www.importperformanceparts.net

Carlos

Posted by: seanery May 21 2003, 06:38 PM

.435 290 252 86a Strong mid range and top end for high performance mech. street engines. Valve springs recommended.
00-232
$155.00

.465 288 244 494 Designed for increased torque with added RPM power. Less top end than the 86a.
00-682
$155.00


My question on the 494 is how much top end do you give up? And how much extra torque will it produce?

What kind of RPM's can we expect from my motor?

Posted by: Brad Roberts May 21 2003, 06:42 PM

Dont expect anything usable over 6k RPM with any of these cams.

I know this is your street car.. so..I'm up for the torque in the mid range and sacrifice the top end (just like a stock cam)... but more torque.

I can save you the few dollars... I think I get everything out the door for 220.00 (with tax and shipping) The springs will be a different story.


B

Posted by: seanery May 21 2003, 06:47 PM

This is probably one of those things that whichever way we go I'll be happy,so I'll let you decide.
This car probably won't see more than 4 or 5 de's max, so streetability is the higher concern.

Should I get the heads fixed? (I know the answer)

Posted by: Brad Roberts May 21 2003, 06:52 PM

What is wrong with the heads ?? OH.. YES. The spark plug holes.. I'll try to keep the pain to a minimum.

I picked up the control arm ear today (230$) << OUCH. We will drop the engine/trans on Sunday after I return from LA on Saturday.


B

Posted by: seanery May 21 2003, 06:59 PM

Take your time to fit your other cars' schedules.

Posted by: McMark May 21 2003, 08:52 PM

What about split duration cam? The 494 is lookin' like a great cam for street use, but I wonder if a split cam would be better. Does choosing the split duration depend on the volumetric efficiency and flow number of the head?

Posted by: seanery May 21 2003, 09:10 PM

way over my head, what is a split duration cam?

Posted by: Mockmaw May 21 2003, 09:45 PM

The Eagle cams are intriguing.. anyone want to share an anecdote about their experience with any of the Eagle products?

Posted by: McMark May 21 2003, 09:56 PM

A split duration cam has different lobes for the intake and exhaust. For example, you could have the intake of the 494 (0.465 by 288 degrees) and the exhaust of the 86a (0.435 by 290 degrees). Or any other combo. Logically, it makes sense because intake tracks and exhaust tracks have different needs in terms of valve action. So it gives you a deeper level of control. Of course, diagnosing what level of valve action you need is the tough part.

Posted by: seanery May 21 2003, 10:02 PM

sounds like a lot of 'figuring' for a street motor. Is it done mainly for race engines?

Posted by: McMark May 21 2003, 10:38 PM

For a guy like me, I do a lot of armchair engineering and, good or bad, I'm willing to spend the money to build an above average engine. So if I can find a place to test my heads on a flow bench, I'll do it so I can better choose a cam. Ever since I've started working on cars about 3 years ago I've been voraciously devouring every bit of auto knowledge I can. So I suppose a split duration cam would be most often discussed in race engine circles, but isn't really that far off for the informed hard core hobbyist.

On a side note, I was just sitting here thinking about cams and wouldn't it be great to be able to test how cams would work on a dyno before even contacting WebCam to choose your grind. All we have to do is engineer some heavy duty solenoids that would bolt on in place of the rockers, and then write a computer program to interface with the solenoids so you could change lift and duration "on the fly". Hmmm. It all seems so easy...

Posted by: Mockmaw May 21 2003, 11:41 PM

While we're that far, why don't we just rig the solenoid setup to work in the engine all the time.. infinite variability. Cadillac is doing this/working on this, no?

Posted by: Brad Roberts May 22 2003, 12:07 AM

As far as I know.. you can't do split duration on any VW cams. Two valves share one lobe. Something like number 1 intake shares a lobe with number 3 exhaust (I'm guessing here) I forget which ones share which without looking at a cam in a engine half, but I do know they share lobes.

B

Posted by: McMark May 22 2003, 12:39 AM

The do share lobes, but it's intake - intake, not intake - exhaust. There's four lobes on the cam, and they line up with the rockers in the head which is exhaust - intake - intake - exhaust. So on a split duration cam the two out lobes would be the same, and the two inner lobes would be the same. The WebCam page lists a 0.500 284/300 250/260 163/86b cam, for example.

Posted by: Brad Roberts May 22 2003, 12:43 AM

I'm not sure what split duration would gain us.. but Dema Elgin will grind you anything you want on a stock core.


B

Posted by: Racer Chris May 22 2003, 05:22 AM

Jake Raby has been using split lift/duration cams for a while now. He designs them on his engine analyzer program.

I have an 86a cam in the engine currently in my race car. It makes good power from 4400 to at least 6200 rpm. I have had it up to 6800. Apart from a compression increase the heads are bone stock.

Posted by: MJHanna May 22 2003, 09:07 AM

I've got an 86 B in my 2.0, but its got some major headwork. Lot of good mid range torque to get you out of corners.

Posted by: Bleyseng May 22 2003, 09:14 AM

Chris, do you have a dyno sheet you could post? Love to see it on paper to see actually what the power curve is.

Jake Raby has been using the split cams to get more power and cooling. If I recall a longer exhaust duration to help the exhaust flow and it helps to cool the engine some. The bottleneck on the type 4 heads is the exhaust port with its 90 degree turn so anything helps the flow over stock.
Geoff

Posted by: Dman May 22 2003, 10:04 AM

I am running an 86a with webber 40's, stock heads and heavy valve springs. I am very happy with it, It is totaly streetable and idles fine.

Like Chis says it realy comes alive above 3500 RPM, you can get to 6 in a hurry.

Posted by: seanery Sep 7 2003, 08:18 PM

OK, so everyone who was involved with this thread, what lifters are in there? And why aren't you having the problems that others have had and others fear?

Posted by: Gary Sep 7 2003, 08:55 PM

Haven't hopped on this thread yet, but OE lifters from pelican. No problems in nearly 20k miles.

Using an 86a on a 1911cc motor, 8.5 CR, 42X36 valves, mild port and polish, 40 mm Dells.

Which cam depends on the use. If I were to pick again for a street motor, I'd probably go for the 86. I spend less time 3500-6000 than I do 2000-4000.

Posted by: ChrisReale Sep 8 2003, 01:08 AM

I thought about Web Cam for my rebuild, but they were back ordered to hell....so I went with stock cam and lifters. No problems yet, and I have driven the piss outta the car. Funny, all the reputible builders in my area said web cams were not necessary, and none of them even consider them during a type 4 rebuild. Not that that says anything...????? All this talk about the lifters failing would make me go caramic all the way. The 4400 would more than make up for itself in the future as far as headaches were concerned

Posted by: redshift Sep 8 2003, 01:14 AM

Can we talk about something else?



M

Posted by: ChrisReale Sep 8 2003, 01:51 AM

Every time this comes up its like taking one straight to the gut huh?

Posted by: redshift Sep 8 2003, 02:17 AM

Yeah, can we talk abou..



m