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#61 | |
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Change is inevitable. I feel your pain about no where to race in Cal. Does that mean your gonna quit? Prob not. Would that be considered change? Get the point? Some changes we like, some we don't.The lifter issue is not going away. Hell, cam companies won't even suggest a lifter because of failure rates. I bet half the guys running flats are using 15 year old Shubecks. That's a gamble I don't want to do, again. lol |
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#62 |
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![]() It comes down to the different way that the information encoded in the lobe is transferred to the valve train. If you look at a flat lobe and a roller lobe that will produce identical valve lift curves, you can see how much different the lifter lobe interface is. Stan |
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#63 | |
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Terry, You are running "Stock". Just how many of your engine parts came from the OEM as part of that engine? Stan |
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#64 |
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It is very easy to say that "change is inevitable" when the change in question is of your personal interest. There is a difference between inevitable and preventable. Big changes like this that would effect everyone are definitely preventable. In no way am I saying that flat tappet cams and lifters are superior to their roller counterparts. The issue would be me trying to come up with at least another $1,000 just to try and remotely keep up with my competitors with much deeper pockets. At this moment in time, I doubt that any lobes for, example, a flat tappet sbc with a .390/.410 lift exist in a roller profile. And I highly doubt that they are going to want to design new lobe profiles for free.
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1189 F/SA Defunzalo Racing Enterprises |
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#65 |
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WRONG. It would effect aprox 40% of stock. Remember, flat tappet are the minority now.
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#66 | |
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Stock 50 year old head castings. Stock 50 year old intake casting. Stock 40 year old OEM oil pan and Timing cover. Stock 50 year old Carburetor. Stock 40 year old rods that have been reconditioned. Stock 50 year old crank that has been reworked. Seems the few things like valves, springs, cam, lifters, rings, pistons, and bearing are about all that isn't OEM. OH, stock 50 year old valve covers. Really not sure what your getting at with the question?? Last edited by Terry Cain; 10-11-2023 at 09:24 PM. |
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#67 |
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So you're saying that the current roller cam cars wouldn't be effected by this? How about them trying to figure out how to make their cars faster when suddenly they are being outrun by cars that used to have flat tappet cams, even though in a lot of classes, but not all, the fastest cars in said category are currently flat tappet combos?
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1189 F/SA Defunzalo Racing Enterprises |
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#68 |
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Has anyone converted Shubeck Hyd over to solids?
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#69 | |
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You sure like to slant your agenda. You need to come up with a plan to make a cam survive in your car. Maybe get with John, who although supports your cause, stated he has 8000 rpm big blocks that survive. Haven't you been trying to sell your car? Are you building a roller cam car if you do?
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Duane Hoven 1342 SS/GT |
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#70 | |
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John Ancona 705 STK / SS |
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