Running too cold review

[WhalePirot]

This article should be of interest too all who believe that running a cooler ennge is better. While written in a non-native language, the main points are valid and of interest.

http://www.khwarzimic.org/research/AUTO/fan.html


mike

 

[Ken]

Without even looking at the article Mike, I can tell you that's why there are two camps on cast iron vs. aluminum heads. Aluminum gives you the weight advantage, but horsepower is developed from heat. Just as the old saying goes, "Where there is smoke, there is fire."; the same holds true for horsepower and heat.

_ken

 

[WhalePirot]

Aluminum also allows one more point of compression, which means more power, too. I just know, my car is the fastest one I've been in and I have too much heat generated.
Mike

 

[fore]

thank you whalpirot. This is really a good article! For every people who attempts to alter the thermal in Corvette engine should keep the note below in mind...

NOTE

It is important to note that one should never temper with the automotive systems as every part is installed for a specific purpose after very careful designing and testing. Every single part installed in the engine performs a specific operation. There are no spare or useless things installed. So disabling any one of them will greatly effect the engine performance and engine life

 

[warren s]

Interesting article –

However, with regard to fuel injected Corvettes some details are different than the carburated autos of Pakistan. Later model Corvettes are built with emission control in mind to a very large extent. By running a fan over-ride switch and a 160-degree thermostat is not the same as having the fan come on at startup. Moving the operating range of the engine from between 210 to 235 degrees to 175 to 200 degrees of coolant temperature is still well with in operating parameters. As most late model Corvettes do not have full time air flow, the high end of the temparatue spectrum will always be experienced in traffic. The high coolant temperatures, also as the article states does not represent the entire engine, such as the state of the transmission fluid in automatic cars when the temp is cycling between 235 and the fan cut off temp.

Both power and fuel economy are increased when the large amounts of surface area the air intake track takes up is cooler, as direct relationship with coolant temperature.

Later model fuel injected cars and forced induction cars almost always run better and last longer when operated well below the highest end of the temperature scale, witch is not designed for pure performance or component longevity.

 

[vader86]

It is important to note that one should never temper with the automotive systems as every part is installed for a specific purpose after very careful designing and testing. Every single part installed in the engine performs a specific operation. There are no spare or useless things installed. So disabling any one of them will greatly effect the engine performance and engine life
[/B]

Bullsh**.

I know better why GM does certain things the way they do, but thats a blanket statement and as such is BS.

 

[hawaii-5-lo]

aloha,
the biggest factor is the oil temp,mine still gets to 210*its just that the heads stay cooler to prevent detonation.my car is 3 tenths slower at the track when temps coolant temps are 2oo* or higher,theres also knock,then timing retard. and up when my temps are 185* ,no knock,normal 1/4 mile times,me and another forum member has witnessed me experiment with this extensively.

warren s.,i agree 100% of what you said.thats also stated in one of my ls1 mod books,

at my place of employment,we have emergency generators as back up power,the tech thats on contract to do a yearly load bank testing,changed all the generators to a lower t-stat,and reset the cooling water solonoids to open sooner,interesting,there fuel injected generators also,just my experience,not trying to start a big debate,have a good evening,Todd.

 

[warren s]

It is important to note that one should never temper with the automotive systems as every part is installed for a specific purpose after very careful designing and testing. Every single part installed in the engine performs a specific operation. There are no spare or useless things installed. So disabling any one of them will greatly effect the engine performance and engine life

I am sure glad the billion dollar automotive aftermarket industry doesnt belive that nonsense either.

 

[WhalePirot]

It takes many bits to make a great piece

And this article, is just another bit of my knowledge base.

I have not owned a car that I have not modified and/or tinkered with. Certainly, the bean counters temper the all out enthusiast-engineers in pre-production. Any car can be improved, but knowing the trade-offs is important to get the results we seek and spend our money wisely.

Many on this forum seem to echo marketing claims, which may not be based in science or testing, or if true, get grossly overstated, then retracted in the fine print we rarely read.

Having spent a lot of cash and time on my C-4, which is REAL fast, but with certain 'issues' remaining, I would do some things differently, of course.

I choose to listen carefully to WHO is saying what, and judge their credibility as inverse to the level of hype and exaggerated claims.

Buying smartly, after careful study, is my set course.

I try to help here with what I know and read, not hype or brag.

Having spent decades building things, I have supported the auto and home aftermarkets quite generously. I know that, at times, the products deliver what they promise, but those promises go , frequently, unrealized, as some have expressed in this forum. Does anyone purport that because the Tornado is sold, as part of that billion dollar aftermarket, that it therefore, delivers all it promises in our application?

Don't get worked up, guys. Take what you can use and leave the rest.

Mike

 

[Ken]

Re: It takes many bits to make a great piece

Take what you can use and leave the rest.

Truer words have never been spoken Mike.

_ken

 

[warren s]

WhalePirot-

That was really deep- One of the many great things about an internet forum like this one is that you get the research and development reports by the hundreds by the actual end user / consumer.

There are millions of Corvettes on the road, and many of their stories are here, when something works or not it will be published, and many times there is video to back it up.

I love this place