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Advanced Discussion - 7.3L Powerstroke Performance Advanced topics related to the 7.3L Power Stroke Engine

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  #1  
Old 02-25-2012, 12:31 PM
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Default Roller Rockers

I know I've seen someone who makes these before. Anyone know of who it is and how much they run?

I noticed when looking at my valves last night that the rockers are farily worn and a couple of the valve tips are worn. They aren't all that old so I'm guessing it's from all the added spring pressure. Thinking the roller rockers will help get around this though I really don't want to have to spend that kind of money on them.
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Old 02-25-2012, 02:19 PM
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Believe it's Wipeout that makes the roller system. We started cryoing the rocker arms and have had pretty good success.
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Old 02-25-2012, 03:52 PM
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Well this what I have found when I went looking for roller rockers in the past. http://www.harlandsharp.com/cummins.htm I would love to have a set of roller rockers on my 7.3 uses less hp, helps valves guides and valves. I am a big fan of using roller rockers whenever I can on something I plan on keeping forever or I am trying to get every hp I can out of something. BUT, as I check into it you are looking at about $3000 I know that is crazy. I put a set of roller rockers on my boat for about $400. I just can't see spending that kind of money on my truck. But Harland Sharp build some very nice stuff. If it wasn't so much money I would love to play with rocker arm ratios on a 7.3. I have done alot of that on gasser engines. You would be surprised what going from 1.5 to 1.60 will do. It is like you changes cams on a gasser but it doesn't always work in your favor. So trying to play with ratios on these 7.3 is just too costly to do anything but stick with the stock rocker arms and like JDub is doing cryoing them.
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Old 02-25-2012, 06:56 PM
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Wipeout has a set of stock ratio roller rockers for $1500.
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Old 02-25-2012, 07:41 PM
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Now that is a pretty good deal considering the cost of the Hartland ones. I wonder what brand they are? And comes with push rods too. But that is still way too much money for roller rocker arms.
But you figure the companies that make them don't sell many so in turn the production runs are short so it drives up cost per unit
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Old 02-25-2012, 07:56 PM
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The push rods are extra, but I was going to run hardened ones anyway.

For me it's about HP for sure, but when I can get longevity and reliability too in the equation, then I will consider the extra money. So with the extra spring pressure and cylinder boost, they make good sense given I am doing over $15k in the engine alone.

For instance, forged pistons are cool, but they are short lived because the upper land can't take it.
Or a main girdle, it's over kill and doesn't stop walking mains.

I want something I can DD with 550-600 on tap and I don't have to tear it down every 3 months.

There is a balance and the trick is to find that balance.

.
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Old 02-25-2012, 08:07 PM
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I looked on Wipeout's site but it's pretty limited on info and I couldn't find anything about them. Maybe I just didn't dig deep enough. Anyone have any actual info on them? I read one thread where someone said they had solid lifters with them and by the time you get th elifters, pushrods, and rockers you're over $2K into them. It'd be nice to just swap out the valves that need replaced and then get the rockers later as money allows.

My other thought was if someone made some sort of hardened cap that goes over the valves stem. This would allow for a harder surface that the rocker rides on as well as a wider surface so that it has more contact area spreading out the load.

JDub what do you guys charge to cryo the rockers? Or what would you charge for a set of cryoed rockers?
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Old 02-25-2012, 08:32 PM
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Quote:
Originally Posted by GTS View Post
I looked on Wipeout's site but it's pretty limited on info and I couldn't find anything about them. Maybe I just didn't dig deep enough. Anyone have any actual info on them?
You have to go their Powerstroke page and download their catalog.
Granted it's a 2006, so it may be that the price went up in 6 years, but I don't they doubled.
I will contact them om on Monday a report my findings.

BTW, they machine the block instead of the heads for the fire rings....go figure.
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86 F350 4x4 - Original owner
Was a 460 and will be a 00 SD 7.3, 550HP
Superlift 6", tilt front-end, dump bed, ARB lockers front and rear, 4 wheel discs, E40D

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Old 02-26-2012, 08:58 AM
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Quote:
Originally Posted by GTS View Post
JDub what do you guys charge to cryo the rockers? Or what would you charge for a set of cryoed rockers?
X2
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Old 02-26-2012, 02:23 PM
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I mached my block instead of heads for the fire rings as well. The block is a more stable part being it's a much larger chunk of metal. Also you're more likely to mess up a head at which time you'd have to have them recut again where if they are in the block you don't have to worry about it. Also it's much easier to get them in the groove and set right whey they are laying in the block.
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'96 F-250 Extended Cab, long box 4X4, 4" lift, 35" tires
Injectors, Intercooler install kit-GTS Motorsports
Crower rods, H11 Head studs, Cam, Chip Diesel InnovationsGen II HPOP, chip-Swamp's Diesel
Chip Live Tuned from Power Hungry Performance
Transmission/Billet Flex Plate BTS
12.683@105.65 in 1/4 mi!
466hp #2 only 805hp NČO
Sponsored by Nitrous Outlet
GTS Motorsports
gtsmotorsport@yahoo.com www.doitrightinjection.com
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