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-   -   Found this in my oil pan (http://www.clubcobra.com/forums/all-cobra-talk/138547-found-my-oil-pan.html)

dcdoug 08-15-2017 10:20 AM
Quote:
Originally Posted by RodKnock (Post 1428323)
Uh, is your carb "buried" in a turkey pan with a Stellings air cleaner? If so, who cares what your carb looks like? Oops, I forgot, you have a CSX with a vintage sideoiler. My bad. :LOL:
Becoming more un-vintaged every day.....

patrickt 08-15-2017 10:30 AM
Doug, I don't know if you read the description of the engine in the vid, but this is interesting: "... the camshaft was ground with a 113-degree lobe separation angle and 242/248 @ .050-inch-lift duration numbers. Rabotnick was unwilling to disclose lift numbers, but we can say that they are ‘healthy’."

dcdoug 08-15-2017 10:47 AM
Quote:
Originally Posted by patrickt (Post 1428327)
Doug, I don't know if you read the description of the engine in the vid, but this is interesting: "... the camshaft was ground with a 113-degree lobe separation angle and 242/248 @ .050-inch-lift duration numbers. Rabotnick was unwilling to disclose lift numbers, but we can say that they are ‘healthy’."
I saw it. I'm going to change out the cam. Brent's going to do a custom grind (we haven't talked about what yet). My Holman Moody "B" cam is in great shape so I may sell it along with the Lemans rods and TRW pistons.

patrickt 08-15-2017 10:57 AM
Quote:
Originally Posted by dcdoug (Post 1428328)
I saw it. I'm going to change out the cam. Brent's going to do a custom grind (we haven't talked about what yet). My Holman Moody "B" cam is in great shape so I may sell it along with the Lemans rods and TRW pistons.
I think that's a good plan. Post the specs when you decide on them.

dcdoug 08-15-2017 11:04 AM
Quote:
Originally Posted by patrickt (Post 1428329)
I think that's a good plan. Post the specs when you decide on them.
I'll just send you a PM. :LOL:

patrickt 08-15-2017 11:06 AM
Quote:
Originally Posted by dcdoug (Post 1428330)
I'll just send you a PM. :LOL:
Humorous.:rolleyes: Note that the duration and LSA Barry chose for the cam in that vid are pretty darn close to my 54 year old "K" cam.:cool:

blykins 08-15-2017 11:30 AM
The cam in the video is a hydraulic roller.

Yours is a flat tappet.

You are losing duration to lash. The hydraulic roller is not.

I love reading those magazine articles, they act like the lift is some wampuss-cat sky-high number that's very secretive. I'm not a betting man, but I'd say it's around .600".

On a hydraulic roller with an FE, you have to play the numbers game. You can either use an aggressive lobe that will make noise and not make power, or you can use a less aggressive lobe that will make power, will be quiet, but will have a high advertised duration. When you try to run vacuum accessories with a high advertised duration, you have to widen the LSA to get the overlap down.

Your cam is antiquated, Patrick.

patrickt 08-15-2017 11:38 AM
Quote:
Originally Posted by blykins (Post 1428333)

Your cam is antiquated, Patrick.
So am I.:LOL:

blykins 08-15-2017 11:39 AM
And so am I.

I'll be 40 next week.

RodKnock 08-15-2017 11:51 AM
Old people like the color beige. When you start picking out and buying beige cars, then you know your life is over.

FWB 08-15-2017 04:15 PM
Quote:
Originally Posted by blykins (Post 1428336)
And so am I.

I'll be 40 next week.
i'd love to be 40 again, trust me its all downhill from here.....

olddog 08-15-2017 07:11 PM
Quote:
Originally Posted by blykins (Post 1428336)
And so am I.

I'll be 40 next week.
You will be over 60 when the little one graduates from college. No early retirement in site!

blykins 08-16-2017 06:02 AM
I was 35 when she was born. If she can squeak out at 21-22, I'll still make it under 60. She started kindergarten at 4, so she may make it out of college at 21.

olddog 08-16-2017 09:03 PM
Quote:
Originally Posted by blykins (Post 1428383)
I was 35 when she was born. If she can squeak out at 21-22, I'll still make it under 60. She started kindergarten at 4, so she may make it out of college at 21.
Well I'm 59 now, and my younger Son is 37. It happened so fast, it's a blur. My biggest regret is not taking enough vacations. I worked far too many hours, but had I not, I couldn't have provided what I did and get where I am. Hard to be sorry for that. So when she is older take plenty of vacations and short trips to neat places.

blykins 08-17-2017 03:08 AM
Words of wisdom. Thank you.

FWB 08-19-2017 07:08 AM
i'll second what Olddog said, in a blink of an eye they will be grown

dcdoug 08-22-2017 01:24 PM
Quote:
Originally Posted by patrickt (Post 1428329)
I think that's a good plan. Post the specs when you decide on them.
Here are the cam specs:

Custom Comp Cams solid flat tappet:
291/299 advertised duration, 254/262 @ .050", 108 LSA on 104 ICL, .584"/.602"

patrickt 08-22-2017 01:32 PM
Quote:
Originally Posted by dcdoug (Post 1428746)
Here are the cam specs:

Custom Comp Cams solid flat tappet:
291/299 advertised duration, 254/262 @ .050", 108 LSA on 104 ICL, .584"/.602"
That's beefier than what you've got now. The "advertised duration" of your current cam is 324 degrees (IIRC), but they measure it from a different spot, so you really can't compare it easily. The .050" numbers are significantly harrier than 245/245 106 LSA and .500" lift after your lash is taken out.

dcdoug 08-22-2017 02:30 PM
Quote:
Originally Posted by patrickt (Post 1428747)
That's beefier than what you've got now. The "advertised duration" of your current cam is 324 degrees (IIRC), but they measure it from a different spot, so you really can't compare it easily. The .050" numbers are significantly harrier than 245/245 106 LSA and .500" lift after your lash is taken out.
And this one gets lashed tighter at .015.

dcdoug 08-22-2017 02:53 PM
The goal was a similar lope at idel on the new motor to what I have now, something that will be happy on the street and also happy autocrossing in 2nd gear with plenty of low RPM torque.


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