Another silly myth that has been floating around for many years is the need to "pre-soak" hydraulic lifters in a coffee can full of oil to fill them prior to installation. Well, you can soak lifters in oil from now until doomsday and they will never get filled with oil so its another silly myth that got started by a wannabe engine builder. It takes a small amount of pressure to fill a hydraulic lifter because the check ball at the bottom has to be forced off it's seat to be able to fill the bottom cavity. When you pressurize the oil system with a priming tool to fill the filter and oil galleys the lifters get filled at the same time.

 

Okay, here's another silly myth that pertains to all gasoline engine powered vehicles. Most people still believe using a high octane gasoline in an engine designed for low octane is somehow "better" for the engine. Using "the good stuff" they claim when in fact they are just wasting their money because of their ignorance. And most people still believe the high octane gasoline is a more "powerful" gasoline that will turn their Toyota into a tire smoker. And most people still believe "hotter" spark plugs will produce more power.

 

You think 1.125" turns is required???? 1/2 turn works fine and is even recommended by aftermarket manufacturers like Comp Cams.

As for hot and running. Maybe not required but it works and some pro engine builders do use it. Once you have cutout valve covers it's likely just as quick too without making a mess.

 

It's been recommended in service bulletins put out by the various manufacturers as part of the cure for a chattering differential. It's certainly not required, but it quickly gets the oil with the proper amount of additive into the clutch pack so the problem is gone when the vehicle is given back to the customer.

 

First, factory fans are NOT out balance. That would wear the bearings out in the water pump prematurely and no OEM is going to do that. They are mis-tuned, with the blades not being evenly spaced to reduce noise. Has nothing to do with limiting their rotational speed.

Uh, that's 900 lbs when your car is held at a constant speed in a straight line. Under dynamic loading (i.e. braking, accelerating, corning), the tires will take more load than that.

First off you do know carb's are rated at one specific vacuum level and the CFM rating is not directly comparable to an engine's volumetric efficiency without taking into consideration how much vacuum the said engine has at the operating condition that you are interested in, right? If the engine has more or less vacuum than when the carb was on the flowbench, the carb will flow a different CFM. Similar to flow numbers for cylinder heads ... depends on the amount of vacuum they are tested with.

Second, who goes WOT at low rpm's? Have you ever heard of rolling the throttle as in gradually opening the carburetor. The throttle is not a digit device (closed/WOT) and wasn't ever meant to be used like that. So I guess if you have NO driving skill, then vacuum secondaries are the ONLY way to go.

Third, if a mechanical secondary carb is having troubles below 4000rpm, it needs tuning and I don't mean changing jets! There are many other aspects of tuning a carburetor (power valve orifice size, accel. pump size and rate, accel nozzle size, etc.).

Your right it allows you to adjust ride height and shock settings so it does exactly as advertised.

You DID notice on Speed Directs own website it does not say it will improve your car's handling nor about fixing the #1 largest deficiency of the C3's rear suspension ... the inherent toe change (rear steer) with wheel movement. Just reading what their add actually says, and not what is implied.

 

Here's another myth that needs to me trash-canned. The myth that the "oiled cloth" air filters are superior to the OEM pleated paper filters because they flow more and are more efficient at stopping dirt. Well, they will outflow a paper filter of an equal area but as the paper filter is 10 times as big as it needs to be the increased flow isn't an issue. As far as stopping dirt goes the oiled cloth filters are extremely inefficient at stopping fine dirt because in operation their fibers open up and fine dust goes right thru them. It is for that reason they should never be used in agricultural areas where fine airborne dust is prevalent. They are 1940's technology that is making the manufacturers filthy rich by misleading and deceptive advertising.

 

Most of your BS has been debunked. How about a response before piling on more drivel?

 

I have a similar setup and experience just the opposite. As long as the flow isn't too slow (ie. not enough cooling water to absorb the heat), the speed or rate of flow has absolutely no effect on the rate of heat exchange. the distillate comes out the same temp regardless. I am not using vacuum, though, and we are talking about the change of state and the latent energy required to do so, which is not necessarily applicable to an engine's cooling system.

but that said, the "slow enough to do it's job" is pure bunk and has been proven more times than is worth even discussing...

btw, here's one: If you want your AC to get colder, put a smaller pulley on the compressor to slow the flow down, then it will get colder in the evaporator...

 

Or turn the blower to a lower speed so the air gets cooled more before coming out the vents....

 

I learned long ago that it is exceedingly difficult to use 'absolute terms' to describe much of anything.

Most (all?) modern vehicles are equipped with knock sensors that exist, in general, to retard engine timing in response to detonation. In a nutshell, one single ping results in timing being pulled back to whatever point is necessary to NOT having the engine ping. The computer does this automatically.

What happens when you put premium gas in the same car? The engine is less prone to detonation...less ping...given a particular timing setting.

The computer will then allow the timing to advance (to a certain point) to the new "ping point" based on the higher octane gasoline.

Obviously, this is a simplistic explanation.

I've run both fuels in my Volvo XC90 with the 4.4L V8 and the difference is nearly imperceptible.

I've run both fuels in my "beater" Subaru Outback with the 3.0L H6 engine and the difference is fairly profound. It doesn't turn the car into a "tire smoker" (it is AWD), but there is enough of a difference in power that it is easily felt.

I don't believe I've ever called anyone "ignorant" because they believe one thing or another. I smile and don't choose to buy what they're selling.

99.765% of the issue with this thread is the inflexible tone and words being used to make a point. The other 0.235% of the issue with this thread is the lack of evidence to support the statements.

It's a painful read.

I don't know why I participate other than, like others, I hate for the misinformation to get perpetuated without correction.

 

The vast, vast majority of people who are trying to accelerate at maximum speed.

 

My aforementioned longtime mechanic husband agrees that oiled foam air cleaners such as the K&N do a very poor job of filtering out dirt and won't put one on any car he works on. He hasn't told me anything about whether or not they are less restrictive.

 

Most of what toobroke is saying is what is known as pseudoscience.
]
pseu·do·sci·ence
ˌso͞odōˈsīəns/
noun
noun: pseudoscience; plural noun: pseudosciences; noun: pseudo-science; plural noun: pseudo-sciences

a collection of beliefs or practices mistakenly regarded as being based on scientific method.


It contains enough detail to fool the unwary or inexperienced layman.
It does not contain the necessary details to actually be fact. Because he himself does not understand the mechanisms behind his statements.
Therefor his lack of knowledge and belief on a subject is passed on as their own "myths", but the inexperienced see it as fact.

To those who would believe everything or anything toobroke says I would say to you, be wary, be smart, and do your homework.
Do not take glib statements at their face value.

 

Kinda like global warming

 

[QUOTE=toobroketoretire;1590866557] About the equivalent of doing a rain dance while naked or sacrificing a goat. [/QUOTE

And you know this from personal experience?

 

For those of you around back then, Kind of like the Durango Boy days!

 

I had forgotten about DB........until now.

 

I think the keyword in that statement is "most". To me some of what he says is accurate and from what I see some on this thread are taking a kneejerk reaction because they don't like him and attacking everything he says without considering whether or not all of it is false. As you said, given the amount of falsehoods in his statements a person needs to be wary of everthing he says, but I'd like to see his detractors here seperate fact from fiction rather than by default suggesting its all B.S. I'm thinking specifically of the following quote which I believe is largely correct:

Now, one poster has argued that a mechanical secondary carb isn't an issue on the street because one can "roll the throttle" and gradually increase the throttle opening when trying to accelerate at a maximum rate and while that is true, for the most part it isn't practical for the vast majority of drivers or will ever be attempted by the vast majority of drivers.

 

That was needless repetition. It looks like you're trying to make the "IBTL" comments self-fulfilling.