When the wife tries telling you -"we can save money--By SPENDING money" do you buy it?

hot rod parts vendors have always counted on people lieing to themselves to get what they want--instead of what makes sense.

I doubt that just changing the rockers would help much.

For mileage I would think that the best valvetrain improvement you could do would be to decrease the drag. I was amazed at how much power you lose to open and close valves. It is obvious when you try to turn a camshaft.

The rocker ratio has to match the cam lift and valve angles and such. It's not a simple shadetree parts swap.

I have that engine in my camper van and it seems to breath really well. It loves to rev and howls like a demon climbing hills. More revs get power better than more throttle. I would love to get better mileage. If you figure it out I would like to hear of improvements.

A lot of people believe that when 0bama says it.

I guess those people just aren't too bright, are they?

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Palangi

2004 C240 Wagon 203.261 Baby Benz
2008 ML320 CDI Highway Cruiser
2006 Toyota Prius, Saving the Planet @ 48 mpg
2000 F-150, Destroying the Planet @ 20 mpg



TRUMP .......... WHITEHOUSE
HILLARY .........JAILHOUSE
BERNIE .......... NUTHOUSE
0BAMA .......... OUTHOUSE

Later, I'm going to start a thread about my pet turtle. See if you can try to segue it into a political discussion, ok?

Pet turtle is an obvious Obama supporter as the turtle is a net "taker"; not a provider/ entrepreneur. ( How was that? OK?)

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1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags

Not fair - you're more intellectually adept than he is.

My wife is far more honest with herself than that. She spends money to spend money, period

It's a '93 E150. I don't know what rockers are in there now but I imagine they're stamped. The oil filler provides no view of the valvetrain so I can't confirm. The 1.7s I saw have a roller pivot and a roller tip. I can't imagine there'll be any more notable drop in oil temp than rise in mpg.

Someone with a similar van in Europe asked about engine mods to increase mpg and someone else suggested higher ratio rockers in his litany of mods. All the suggestions and marketing fall under the umbrella of efficiency but efficiency doesn't always translate to increased mpg.

Ideally the van would have a 4.9, 5.0 or 7.3 but the right van at the right price had a 5.8. And with 185K miles on the clock, it's not worth more than a set of new plugs and wires when needed. If my criteria were towing up Pike's Peak I'm sure higher ratio rockers would make the cut for cost and ease of installation.

Neither the E150 nor the Suburban have a rubber lip. The air dam molded into the E150 bumper hangs pretty low as it is and we tend to park as far into a slot as possible so the back end doesn't stick out. A rubber lip might not last too long. I'll have to check how low they usually hang. Ugly? We're talking about a van

Sixto
87 300D

I once bolted a piece of conveyor belt to my bumper,wrapping around the edges. It was around 1.5" off the ground. Bumped my truck up like 4mpg, but it did get scraped up quite a bit. I finally ripped it off (accidentally) when I was running around in a field.

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$60 OM617 Blank Exhaust Flanges
$110 OM606 Blank Exhaust Flanges
No merc at the moment