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#381
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The last time I used an Eagle cast crank, it was in an engine making around 600-650 HP. That engine ran great right up to the point where the crank broke in 3 pieces at the 3'rd rod journal back and split the block in two. All the bearings on that crank looked good, so it was just a matter of the Chinese cast iron couldn't hold the power. That was the last time I used one of those cranks. I just don't trust them anymore. I'm quit certain a factory crank would have held up just fine in that engine. This was back in the early 2000's when these cast Eagles were the only option before all the forged cranks came out. Maybe they have gotten better, I don't know. Never been willing to try another.
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Paul Carter Carter Cryogenics www.cartercryo.com 520-409-7236 Koerner Racing Engines You killed it, We build it! 520-294-5758 64 GTO, under re-construction, 412 CID, also under construction. 87 S-10 Pickup, 321,000 miles 99Monte Carlo, 293,000 miles 86 Bronco, 218,000 miles |
#382
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Clay
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All the federales say,they could've had him any day They only let him slip away, out of kindness...I suppose Poncho & Lefty |
#383
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#384
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You know, I do have a crank that I was told it was steel. Its a Crankshaft Specialist crank I bought on E bay years ago. Its was .3.25 main 4.25 stroke. Had them turn it down to 3" main and weld the thrust and machine it, profile counterweights and gun drill. Its 65lbs now. I can not certify what it is made of. This thing has square cheeks like a 455 crank. Not seen any forgings with that. It has a Crankshaft Specialist stamp on a counterweight but was turned off in the lathe for lightening. I am a welder and the thrust was welded at CS and the guy who did the welding would know if he tried to weld on iron with wire/rod meant for steel. If he had to weld the cast iron that gets a little more tricky. But it was over 10 years ago. The whole crank is shiny as can be. Where they profiled counterweights it looks like chrome. Guy at CS said it resembled a billet but I doubt that is true. Have some pics, maybe I will post. But at any rate, even if it is a fully prepped 455 turned down/welded crank, its better than a cast Eagle. I would think a PMD crank would do well at 650 HP. I can not run that Eagle now. Take a chance of wasting a std bore 73 400 block with splayed billet caps, I don't think so. Whittmores last engine. BTW, I remember Dan had the crank but never got around to rebalancing the whole thing before he passed. But said he had a "stroke checker" tool and said it was actually 4.23 stroke. Would I have to deck the block a bit lower if I run it ? Sorry for the hyjack. Maybe I will start a thread on it. Buyng a new Scat forging would put my project past April, start of the season. If I can make the CS crank work (rebalance rotating assembly) that might make the best sense. |
#385
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4.25" - 4.23" = 0.02" but only half of that is going up. So if you are now zero deck that should put you at 0.010" down in the hole. So you could just reduce your head gasket thickness by 0.010" Stan
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Stan Weiss/World Wide Enterprises Offering Performance Software Since 1987 http://www.magneticlynx.com/carfor/carfor.htm David Vizard & Stan Weiss' IOP / Flow / Induction Optimization - Cam Selection Software http://www.magneticlynx.com/DV Download FREE 14 Trial IOP / Flow Software http://www.magneticlynx.com/DV/Flow_..._Day_Trial.php Pontiac Pump Gas List http://www.magneticlynx.com/carfor/pont_gas.htm Using PMD Block and Heads List http://www.magneticlynx.com/carfor/pont_pmd.htm |
#386
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I have a 1016 Fel Pro set, think they are .040 or so. Cometic makes a .027. Might get close enough. Maybe someone can give the actual 1160 thickness. |
#387
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I've been running Howard's roller hyd lifters.. They have always worked well, but been noisy. I switched from Mobile1 10w30 to AMSOIL 10w30 Z-Rod, for no reason other than it was on sale and I knew the zinc wouldn't hurt anything. My lifter noise went away pretty much instantly.
It doesn't make any sense to me that a high zinc oil designed to protect flat tappet cams would make noisy roller lifters suddenly quiet. I do know that I've stumbled into enough problems, so I'm not going to argue with an accidental solution. Give it a shot.
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77 Trans Am, 469 w/ported E-Heads via Kauffman, matched HSD intake, Butler Performance forged rotating assembly, Comp custom hyd roller, Q-jet, Art Carr 200 4R, 3.42s, 3 inch exhaust w/Doug's cutouts, D.U.I. Ignition. 7.40 in the 8th, 11.61@116.07 in the quarter...still tuning. |
#388
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#389
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I don't think he has shared it yet. |
#390
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I could explain all this to the girl at the parts store, but she'd probably call the asylum. White '67 LeMans 407/TH350/Ford 3.89... RIP Red '67 LeMans. 407/TH400/Ford 3.25 |
#391
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When I found this out I didn't change viscosity. At least not as they are printed on the labels. I went from 20w-50 Valvoline to 20w-50 Amsoil, and the lifter noise stopped. I've also run 20w-50 Amsoil with both styles of Comp hydraulic roller lifters with absolutely no noise issues at all which is totally opposite of what everyone says, apparently including Comp, that you need 10-30 in these things. So it has me thinking it's not really as much about viscosity as it is the type of oil being run. I'm not suggesting change for anyone, I just know what has worked for us. I know 10-30 would also be just fine, I've experimented with that viscosity in a couple cars. It wouldn't surprise me if other high end brands like Brad Penn or Royal Purple or ??? would work just fine too with the higher viscosities. |
#392
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Without an engine dyno or track testing there is no way to know if these oil changes caused a difference in bleed down rate and lifter / valve motion and a change in performance.
Stan
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Stan Weiss/World Wide Enterprises Offering Performance Software Since 1987 http://www.magneticlynx.com/carfor/carfor.htm David Vizard & Stan Weiss' IOP / Flow / Induction Optimization - Cam Selection Software http://www.magneticlynx.com/DV Download FREE 14 Trial IOP / Flow Software http://www.magneticlynx.com/DV/Flow_..._Day_Trial.php Pontiac Pump Gas List http://www.magneticlynx.com/carfor/pont_gas.htm Using PMD Block and Heads List http://www.magneticlynx.com/carfor/pont_pmd.htm |
#393
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I wasn't expecting it and didn't change brands of oil because of it. I was just pleasantly surprised. |
#394
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The Amsoil is probably holding it's viscosity better, therefore not letting as much oil slip past the inner plunger while running.
Oil gets thinner when hot, no matter what it's viscosity is. Some oils get thinner than others. Get 20/50 oil up to 200° and it pours like water. I think the Amsoil is just not getting as thin as the Valvoline you used before.
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Paul Carter Carter Cryogenics www.cartercryo.com 520-409-7236 Koerner Racing Engines You killed it, We build it! 520-294-5758 64 GTO, under re-construction, 412 CID, also under construction. 87 S-10 Pickup, 321,000 miles 99Monte Carlo, 293,000 miles 86 Bronco, 218,000 miles |
#395
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So if anybody followed Caster1’s build you saw that he made some serious power out of the 462 that he had my machinist an engine builder build for him. It’s all been documented in a thread posted on her in the last two weeks, anyway Paul is custom ordering me a Lunati Voodoo cam he thinks will be perfect for my build. I contacted my machinist to ask him what roller lifters he had used in Tommy’s build and he said he used Erson same as the cam. I looked them up and the price point is about halfway between the high and low prices for roller lifters. Anyone have experience with Erson lifters? I want my engine to be a quiet as possible. Roller lifter tick scares me not from a performance standpoint I just want the engine to sound like a sewing machine not a typewriter. My machinist is doing the lifter bore mod.
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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
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