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Old 04-13-2019, 10:40 AM   #76
klr142
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I have an unknown cam I would like to send in to get some more info on. It’s a lower lift cam with a good bit of duration like the older style rally cams and was something I think IPD had a one off made many years ago? So I just box it up and send it over?
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Old 04-15-2019, 07:52 AM   #77
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Correct. Now that weather is favorable I should be able to do these in relatively short order.
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Old 05-14-2019, 06:02 PM   #78
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Custom IPD grind done by Oregon Cam Grinders is boxed up, just need to ship it out... I'm still curious of your T cam data if you can get that measured at some point, too. No rush, of course, as it's just curiosity!
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Old 05-14-2019, 07:20 PM   #79
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V, T, and this one will probably get done same day, hopefully next weekend. If it ever stops raining here. This must be what the PNW is like.
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Old 06-09-2019, 09:31 PM   #80
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Added the Volvo "V" today, and a cam supplied by klr142 we're calling "OC352" because that's the only marking on it.

Currently I run the V in my 240, which is stock B230F (w/EGR), milled 0.040 for 9.8:1, and M47. I used to use the A, but I can say that the V is a little friendlier to the LH2.4. Idle and driveability are a little better (marginal but noticeable), fuel economy MAY be 0.5mpg combined better. MAYBE.

We didn't have time to check the T today, but we will get to it. Given it takes a while to just set it up to check, I'd like to have another on deck when we do it. ENEM V15 or KG003 or something like that would be awesome, something we can all have access to. Any takers?

Big thanks to Kyle for helping to expand the database!

Last edited by shoestring; 06-09-2019 at 11:10 PM..
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Old 06-10-2019, 05:56 PM   #81
klr142
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Quote:
Originally Posted by shoestring View Post
Added the Volvo "V" today, and a cam supplied by klr142 we're calling "OC352" because that's the only marking on it.

Currently I run the V in my 240, which is stock B230F (w/EGR), milled 0.040 for 9.8:1, and M47. I used to use the A, but I can say that the V is a little friendlier to the LH2.4. Idle and driveability are a little better (marginal but noticeable), fuel economy MAY be 0.5mpg combined better. MAYBE.

We didn't have time to check the T today, but we will get to it. Given it takes a while to just set it up to check, I'd like to have another on deck when we do it. ENEM V15 or KG003 or something like that would be awesome, something we can all have access to. Any takers?

Big thanks to Kyle for helping to expand the database!
I wish we had more data to go along with it! I guess it's not really helpful to know the information until someone actually runs it, because we don't know what it is or is a copy of.

I should've told you to keep it in the car and run it for a bit so you can report on how it really does, just so people can try and glean some info from the specs if they're looking at something that's maybe comparable. I mean, you're most of the way there already with it setup for measuring, you might as well finish it up and run it for a few weeks for fun to see how it goes as long as you don't mind the worse low rpm performance and idle for the time being. You'd need to open the idle stop a bit more to help it idle at a higher rpm, but LH will run it! Just not necessarily very well. I bet it's less aggressive than the KG7 you guys tried in the race car, though(which is advertised as 12mm lift, 105LSA and 304° duration).

Basically, it looks like it has about 10 degrees more duration and overlap than the H cam's intake lobe, with less overall lift.

Your feedback on the V is also interesting. The A has less lift but more duration at really small openings which agrees to with your findings. A more modern camshaft, basically, not giving up any performance yet being nicer at low rpm and emissions wise. I wish there were more aftermarket camshafts with that sort of thinking in mind. Almost all of them(except with AGAP, basically), have high duration low lift camshafts as being the first available upgrades over an H cam, so the first thing you lose is idle/emissions quality.

I'd like to see something that outperforms the H/K cam noticeably without giving up a lot around idle and under 2000-2500rpm, just because it's a more modern camshaft design. Why doesn't anyone make this?!

My ENEM K13 might be close, as it's 12.5mm lift and "280°" duration. Here's more information on that.


ENEM K13 measurements(RSI had it measured):

intake lift .490"
exhaust lift .489"

intake duration at .020" = 288° - Don't know if these numbers are after taking up the normal valve lash, I'll ask if Jonathan remembers...
exhaust duration at .020" = 284.2°

intake duration at .050" = 240.2°
exhaust duration at .050" = 239.6°

K13 as advertised by ENEM:

280/280/105/107/12.5/12.5/2.8/2.4/ 0.40:
In. duration 280°
Ex. duration 280º
In. centerline? 105°
Ex. centerline? 107°
In. lift 12.5mm
Ex. lift 12.5mm
In. lift at TDC? 2.8mm
Ex. lift at TDC? 2.4mm
Valve clearance or lash 0.40mm

Inlet:
Open 35 BTDC
Close 65 ATDC

Exhaust:
Close 33 ATDC
Open 67 BBDC.

LSA = 106

28 degrees of overlap @ .050

Last edited by klr142; 06-10-2019 at 06:25 PM..
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Old 06-10-2019, 09:40 PM   #82
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Basically what I'm chasing too. Give me a 110 lobe sep with an intake valve closing maybe 6 degrees later than a K with 12.5mm lift...I'm in. AGAP grinds look the most like what I'm looking for, but I can't afford a $400 shot in the dark. Did that already and lost...

PS: I found the a duration comparison of the D and KG7 that Cam and I had done in a jig on the bench. The seat-to-seat (after lash) on the D is within 1° of as it measures in the car, but the rest of the data points are junk (way too short). With that in mind, the KG7 showed 315° after 0.016" lash!
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Old 06-11-2019, 01:14 AM   #83
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Nice find and WOW! Good job measuring back then as well, thank you!

Are you wanting something this mild because you’re wanting to stay with the powerband below 6500? You could email Erland and ask for his thoughts on the matter? Also, you don’t really care about how a cam behaves below 2500rpm in your race car, so you could go with something a little more aggressive as long as it doesn’t lose too much below 3500rpm or so. The D cam is already one/if not THE highest duration stock cams at first movement, so the KG7 is huge at another 25 degrees of duration there!

You should try that OC352 in either car!!
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