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  1. P

    Frantz Bypass Oil Filter

    How did you evaluate that?
  2. P

    N/A dynomax exhaust Y-Pipe

    That is indeed the optimal setup! The Dynomax/Walker setup may be bigger, but bigger is just bigger. Might be a slight improvement in flow over a smaller set of pipes but if you add in a Y like LCAM illustrated, you could make well designed smaller pipes flow better than poorly designed larger...
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    Frantz Bypass Oil Filter

    To start with, eat my shorts you arrogant freak. It's not necessarily cheaper to sample the oil than to change it. It depends on what oil you are using. If you are drinking the Amsoil coolaid it definitely is. What you said about the oil lasting 4-5 X longer is sometimes true (depending on...
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    Frantz Bypass Oil Filter

    So you gotta spend $20-25 to find out it's time to change the filter? Kinda cuts into the profit margin, doesn't it? Spend $20 to learn when the right time to change a 25 cent roll of TP? Much simpler and cheaper to compare the inlet and outlet line temps. In fact, that's what many pros will...
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    Frantz Bypass Oil Filter

    You periodically feel the outlet hose. As long as it's as hot as the inlet, you know you have good flow. Frantz efficiency is highly variable according to the type of TP use but it's the cheapest bypass element around.
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    N/A dynomax exhaust Y-Pipe

    NA can lose bottom end with pipes too big, though a 3-inch system would be almost unnoticeable butt dyno-wise. A 2.5" mandrel bent with a good flowing muffler has more than enough flow for an NA truck... about equivalent in flow to a crimp-bent 3". Was at the Dynomax research lab in '08 and they...
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    How much boost is toooo much?

    If you get black smoke on a hard pull, and EGT goes up to about 1100 fairly quickly on a hill, the pump has been tweaked. Light smoke and low EGTs, it might be set low (the Banks "emissions legal" setting) or still at NA trim. Adjusting the pump was part of the installation process and outlined...
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    Turbo Install on a worn out engine? In need of advice.

    I think the advice on pulling the heads and studding it is best. My '86 has had a turbo on it (Banks Gen 1) since '87 and 7K miles. In 2010 I blew a head gasket and had occasion to tear into the engine. I saw the effects of turbocharging an NA engine and them working the engine hard over many...
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    How tall of tire can I fit without a lift?

    What 7-inch wheels did you use? I just found 4 early '90s Ford 7-inchers that look just like the OE wheels and will carry the hubcaps. I will be fitting those wheels as I have time and selling the alloys. Will probably go to a slight skinner but equally tall tire.
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    How tall of tire can I fit without a lift?

    235/85R-16 were the stock 4x4 tire and with said tires, the speeds on many trucks (at least in the Bullnose era) reads ~10% more than actual. Ditto the odo. Among other things, it fools you into thinking you are getting better MPG than you really are. 285/70R-16 (roughly a 33+) fits on my...
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    Rockauto Main Battery Cable vs making your own

    Zipper on the scrotum! Hurts much less then.
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    Wont start help

    Was it gelled summer diesel? And is your fuel line heater working?
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    Key Difficult to Turn When It's Cold!

    My truck's been doing that for about 15 of the 27 years I've owned it. Never tried anything to fix it (lazy dog that I am, I guess). I had to start the truck a coupla days ago at -17F and, yeah, it was stiff.
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    ATF Added To Engine Oil...Why?

    ATF detergency is very low compared to engine oil, especially diesel rated engine oil (which is very high in detergency). All you are doing by adding ATF to the crankcase is adding stuff that isn't designed to be in there.. mainly friction modifiers designed for fiber clutches... diluting the...
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    Low MPG, what to expect and what to check?

    YOur speed spunds off in the direction I expect for stock tires... which makes you actual mpg worse than your tests (Gad Zukes!). I'd be surprised if the timing gave you that much of a gain. I did the exact same change about two years ago and while mpg and power ticked upward, it wasn't a...
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    Low MPG, what to expect and what to check?

    That's low IMO but what tires have you got mounted? If you have a tire upgrade the odometer could be off which will mess with your MPG. Generally bigger tires will put the MPG more negative without speedo correction. What happens is that bigger tires make the odometer record less distance, so...
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    How much air filter restriction is too much?

    Well, there's yer trouble. It's probably calibrated for a gas engine or a diesel that normally has low restriction, or much less restriction than your truck. The three-color-only gauges are often calibrated for a particular engine or type of engine. Obviously not a 6.9L Ford. If it trips with a...
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    How much air filter restriction is too much?

    Restriction gauges come calibrated to different levels. Those intended for gassers usually only read to a max of 15 or 20 inches of water. Diesels often go to 25 or 30. Which gauge do you have? Brand and to what max calibration? Another thing that makes a difference is where the gauge is...
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    TTB front end

    I got my '86 truck practically new and it's always driven very nicely. Still does, even though the front end is now a bit loose. No abnormal tire wear... ever. Back in '94, we considered trading it in the a second gen Dodge Cummins. The newer truck had a lot of nice features vs out old Ford but...
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    ByPass Oil Systems

    I agree with the temp gauge idea if the pan is off. Had one on my 6.9 for a while but when it failed, it was a very unique unit, I never bothered to replace it because the oil temps were so low and stable on the 6.9L generally. I'm not a particular fan of synthetic oils, mainly from the return...
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    ByPass Oil Systems

    I have a Racor ABS bypass with the 3 micron element installed. The feed hose can be attached to the rearmost oil gallery plug, just forward of the bellhousing area if you don't have an aftermarket turbo. If you do (as I do), there are two or three other gallery plugs just above the pan rail...
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    Help with C6 diagnosis please

    I haven't touched a C6 in a long time but I think Wyreth is giving you good advice. You need to test the pressures first. Seems likely to be in the valve body but exactly what is not clear to me.
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    How much does a Banks really help

    Worth it? Oh yeeaa! In my day (kit installed on '86 truck in '87), the flywheel rating was 175 hp. Banks flywheel rating: 255. Peak Torgue: 360 stock, 550 with the Banks. Even if you consider there is some fudge factor (advertising) in the ratings, it's a remarkable difference and the...
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    5" Exhaust Anyone?

    I've probably tested/installed or done install stories on a good 100 performance exhaust system in my career, now over 40 year along, a few on my own stuff many more on other's rigs. I've also had the opportunity to learn a lot from people who design and build exhaust systems for a living and...
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    5" Exhaust Anyone?

    How is dumping the muffler going to help? There are a whole lot of factors that contribute to drone so each truck is different and we can't really write foolproof prescriptions for other people's trucks unless they pretty much match in the setup. In my experience, removing the muffler doesn't do...

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