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Old 05-26-2018, 10:32 AM   #51
shoestring
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I like mystery cam. Send it. I'll pay to ship it back.
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Old 07-04-2018, 09:19 PM   #52
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Happy 4th of July! Added Volvo B grind and the mystery cam as provided by TurboDenny. Thanks very much for that! Given that the cam has no markings except a blue stripe and is slotted, we're of the opinion that this is an IPD Turbo cam, which I actually kinda like as an N/A cam, given the specs. If anyone has input on it, please feel free. As I said, it's just our best guess.

At this point we're out of cams, except for a T that's in a car right now. If anybody wants to throw a couple at me for the next time I have time (these two took about 5 hours start to finish), that would be great. Don't send me something you're going to need back right away, I just can't get to it that quickly.

Enjoy!
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Old 07-04-2018, 10:12 PM   #53
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Well that's some good news I suppose. That cam was out to the trash until you decided to measure it. Glad I sent it your way!
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Old 07-11-2018, 09:11 AM   #54
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Quote:
Originally Posted by shoestring View Post
Happy 4th of July! Added Volvo B grind and the mystery cam as provided by TurboDenny. Thanks very much for that! Given that the cam has no markings except a blue stripe and is slotted, we're of the opinion that this is an IPD Turbo cam, which I actually kinda like as an N/A cam, given the specs. If anyone has input on it, please feel free. As I said, it's just our best guess.

At this point we're out of cams, except for a T that's in a car right now. If anybody wants to throw a couple at me for the next time I have time (these two took about 5 hours start to finish), that would be great. Don't send me something you're going to need back right away, I just can't get to it that quickly.

Enjoy!
enem C2 sitting on the bench, it's broken (rear thrust collar), but not sure if that matters for just measurements.
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Old 07-11-2018, 12:27 PM   #55
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enem C2 sitting on the bench, it's broken (rear thrust collar), but not sure if that matters for just measurements.
Nope. As long as it has #1 and #2 cam journals on it, we can use it.

Send to

Dan Samodai
7 Highland Terrace Apt A
Beverly MA 01915

Please make sure to include a return address. I'll pay to send it back.

This goes for anybody.

If you look at these cam profiles, the factory cams all have a ramp speed of 0.050" per 10°, pretty much across the board. I'd like to see what one of these true aftermarket performance cams looks like. I had a KG7 but never measured it, but I can tell you the duration over 0.300" was WAY longer than anything else we'd seen.
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Old 07-17-2018, 11:09 AM   #56
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Aight. I got permission from it's owner, I'll get it headed your way soon. It's a lumpy bastard I can tell ya that lol
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Old 07-29-2018, 04:01 PM   #57
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Old 01-11-2019, 01:54 PM   #58
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Can I get you to do an RSI Stage 3 cam for me in a somewhat expedited fashion? Be willing to pay a few bucks as it's now a service I need.
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Old 01-17-2019, 01:03 PM   #59
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Quote:
Originally Posted by shoestring View Post
Send to

Dan Samodai
7 Highland Terrace Apt A
Beverly MA 01915

Please make sure to include a return address. I'll pay to send it back.

This goes for anybody.
I'd like to note to any potential camshaft senders that this is no longer the correct address.
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Old 01-21-2019, 08:55 AM   #60
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I'd like to note to any potential camshaft senders that this is no longer the correct address.
Good point. New address is:

Dan Samodai
12 Elmwood Rd
Swampscott MA 01907

Again, if you want to just send them to me, I'll know what to do with them, and I'll pay to send them back. Please hold until Spring though. Brr.
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Old 01-28-2019, 10:37 PM   #61
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How are you guys jigging things up? We set up the dial indicator but in order to reach the bucket and clear everything it is at a slight angle. That's going to slightly skew total values. For me it doesn't matter as much because I mostly just need the profile and to use the data to calculate valve acceleration so it's good data. I'll clean up my scratch pad and submit it for posterity.



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Old 01-29-2019, 12:45 PM   #62
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I have a special little finger that screws onto the end of my dial indicator that comes out at like a 75 degree angle so that the indicator's movement is vertical.

That exhaust closing ramp looks pretty aggressive.
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Old 01-29-2019, 12:57 PM   #63
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Quote:
Originally Posted by shoestring View Post
I have a special little finger that screws onto the end of my dial indicator that comes out at like a 75 degree angle so that the indicator's movement is vertical.

That exhaust closing ramp looks pretty aggressive.
maybe that's why my exhaust valve was bouncing
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Old 01-29-2019, 03:11 PM   #64
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https://www.tildentechnologies.com/Cams/CamDesign.html

Try this instead.
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Old 02-17-2019, 07:23 PM   #65
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OK homies, I have got a V inbound, and have yet to do the T we have. I think that should do it for the factory pieces, with the exception of the VX3?
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Old 03-07-2019, 09:33 PM   #66
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Great Work Shoestring!!

I've measured 2 dozen B20 cams, so I know how much time and effort this takes.

Stupid question number one: What is the HOT running clearence of these things?

Also, next time, take .001" measurements atleast for 10° each side of official lash, this will tell you how far you can stretch or shrink for a crude duration test, to give you a direction on which lobe duration next time you pick one.
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Old 03-08-2019, 12:50 AM   #67
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Originally Posted by B20Paul View Post
Great Work Shoestring!!

I've measured 2 dozen B20 cams, so I know how much time and effort this takes.

Stupid question number one: What is the HOT running clearence of these things?

Also, next time, take .001" measurements atleast for 10° each side of official lash, this will tell you how far you can stretch or shrink for a crude duration test, to give you a direction on which lobe duration next time you pick one.
Hot valve lash is .35-.45 mm, or 16-19 thou versus the cold .30-.40 mm.

I'm not really sure what you mean by the second part. You mean the difference in duration between tightest possible lash and loosest? I know shoestring and I discussed that at one point and measured it on at least one cam with the difference being pretty trivial (K cam if I recall correctly, with the number being about four degrees which sounds significant until you think of the valve open area). Then again I may be misremembering.

Looking forward to it warming up here in MA so we can do more measurement. Good to hear more people are out there measuring stuff!
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Old 03-21-2019, 01:54 PM   #68
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Great work! IN for 16v cam differences. Penta, vs car. And other offered upgrades would be of epic porportions Sirs.
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Old 03-21-2019, 02:41 PM   #69
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Great work! IN for 16v cam differences. Penta, vs car. And other offered upgrades would be of epic porportions Sirs.
I'd love to say we're working on that but we don't have a 16v guinea pig. Maybe if someone mailed me a B204FT I could chuck into my 940...
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Old 03-21-2019, 11:32 PM   #70
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960 PC cams
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Old Yesterday, 02:10 PM   #71
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Word.
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Old Yesterday, 02:34 PM   #72
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Have you thought of using a softer, but longer, spring under the bucket without a retainer and valve? This would eliminate the duration errors due to the lash. Measuring the cams with lash is lowering the total duration figures and making the opening/closing ramps look more aggressive.

While this is very comparative, it's lacking in accuracy if someone was to compare lift and duration values for a cam that was not measured this exact way.
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