Forum > Your Pintos/Bobcats & Racers
1976 Wagon with 308.000 miles!
beegle55:
Good story you have there. In regard to your attempts to contact Ford about the Pinto, I was not surprised that the comments didn't receive the highest regards. The Pinto is probably one of the most if not the most infamous car in Ford history. Even if a Pinto had 1,000,000 miles, I doubt Ford would do anything except congratulate the owner on the achievement. It was/is a great car and us Pinto fans know it, but it cost Ford a lot of money and hurt its reputation. And really, the Pinto wasn't a very popular idea in some of Ford's CEO's eyes back when it was introduced, but Lee Ioccoca got his way despite Henry Ford II trying to shut the project down. But a good story nonetheless, keep her maintained and it should last you many many more miles if you're lucky.
-beegle55
mikerich1972:
Actually, the idea is to reduce the pressure in the crankcase, thus reducing the rotational drag caused by having to push air in an enclosed space. In other words, I'm pulling a vacuum on the crankcase...
Mike
77turbopinto:
--- Quote from: mikerich1972 on March 27, 2008, 04:03:49 PM ---Actually, the idea is to reduce the pressure in the crankcase, thus reducing the rotational drag caused by having to push air in an enclosed space. In other words, I'm pulling a vacuum on the crankcase...
Mike
--- End quote ---
Isn't that what the PCV system does?
Bill
mikerich1972:
The PCV system on any automotive engine only has ONE purpose; to keep the unburned hydrocarbons (and other junk) out of the atmosphere. It does that quite effectively by purging air through the crankcase and into the intake manifold. From there, the junk is burned in the combustion process.
So, no, the PCV system does not apply ANY vacuum on the crankcase. It merely pulls air (and, by the way, a lot of water vapor) through it.
You may be misunderstandi ng the word vacuum. In this and many other cases, it is used to refer to the absence of air, or deprivation to some extent. This results in a reduction of pressure to some point below atmospheric pressure.
E-mail me with "PCV MODS" in the subject line, and I'll forward my idea to you. It is a two-page explanation of this whole concept.
GDSNCNTRL@VERIZON.NET
77turbopinto:
--- Quote from: mikerich1972 on March 27, 2008, 06:49:42 PM --- The PCV system on any automotive engine only has ONE purpose; to keep the unburned hydrocarbons (and other junk) out of the atmosphere. It does that quite effectively by purging air through the crankcase and into the intake manifold. From there, the junk is burned in the combustion process.
So, no, the PCV system does not apply ANY vacuum on the crankcase. It merely pulls air (and, by the way, a lot of water vapor) through it.
You may be misunderstandi ng the word vacuum. In this and many other cases, it is used to refer to the absence of air, or deprivation to some extent. This results in a reduction of pressure to some point below atmospheric pressure.
E-mail me with "PCV MODS" in the subject line, and I'll forward my idea to you. It is a two-page explanation of this whole concept.
--- End quote ---
I fully understand the word "vacuum".
The PCV system does put a vacuum to the crankcase, but with the crankcase that is vented, outside air is pulled into the crankcase: 'a vacuum leak'. If it were not putting a vacuum to the crankcase, air would not be pulled in through the vent.
By sealing the vent ('leak') you will limit the amount of hot gas that will be pulled out of the crankcase and into the engine, and in turn your intake air temp will go down. That will go along with any benefit that a negative pressure in the crankcase might give you.
A N/A (regular) car will draw more vacuum at idle or 'decel' than with an open throttle (like highway driving).
Of course ANY modification to the intake air might have other effects too, and those must be considered before-hand (tune, choke, federal laws...).
BTW: What I don't understand is why you don't want to just post all of your information here, or post a link, and make it "public."
Bill
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