Stock '03 Cobra Block makes 700hp

[URFUCT]

Originally posted by Turbo C-Ya
I'm serious, if the stock block can handle more (if this is what I understand by skiiming over the facts I have), then why did they choose 390 or whatever it is over, say, 450hp if that can be achieved with no more work that just a smaller pulley? They would sell more cars, I know how the domestic car guys measure their their manliness by the amount of hp their cars makes, not concerned about anything else.

Insurance companies would absolutely love for that to happen... Why don't they just sell cars with full legnth headers?? If BMW and Benzs are at there full potentiol from the factory, then that just makes them even less impressive.

[Tom]

lack of knowledge pwns turbo cya

the roids got to his head...they already got to his bizalls

[Turbo C-Ya]

But then you are paying for an overbuilt engine. If its capable of twice what it makes, whats the point of making it so?

For example, the E36 M3 had problems with having such high compression that many engines were blowing. For the majority that didn't blow, the very fact that a few were blowing means the cars are at their full potential, so you are using everything efficiently.

Wouldn't you feel cheated paying for a company to make an engine that could handle 500hp only so that they could sell it to you at 200hp? It just seems so inefficient! Thats all I am saying, don't really know why I get flamed everywhere here???

And I don't mean to say they should sell it at 700hp. Though that would make everyone want to buy them, they would probably be victims of the gas-guzzler tax, and like mention above, high insurance premiums. But they should bump it to over 400 if it's that easy. 400hp and things start looking really impressive.

Sorry for wondering why Ford is making you pay for technology and build quality that you will never utilize... just seems like an interesting issue to me.

[HybridSS]

Turbo guy...I understand what your saying but your logic is extremely flawed and based on bad info.

Having a motor "overbuilt" is a desirable quailty in making a semi-powerful engine last. An engine can theoretically be run from 0-100% of its mechanical/structural potential. Operating at 100% or more would mean failure at any given moment. Operating at 90% would mean reduced life...say 6 months. But decrease that to 50% and now your talking many many years of trouble free running. You should not design an engine to handle 500hp and then run it right at 500 hp and expect it to have a long life. Engineers always provide a "fudge factor" when designing anything be it mechanical, electrical or otherwise.

And your example of the BMW engine being made to max potential is crazy. Thats clearly an example of a flawed design. The rods snapping in the new M3 engine only means BMW put a substandard part in an otherwise excellent engine.

[Nata$]

"Having a motor "overbuilt" is a desirable quailty in making a semi-powerful engine last. An engine can theoretically be run from 0-100% of its mechanical/structural potential. Operating at 100% or more would mean failure at any given moment. Operating at 90% would mean reduced life...say 6 months. But decrease that to 50% and now your talking many many years of trouble free running. You should not design an engine to handle 500hp and then run it right at 500 hp and expect it to have a long life. Engineers always provide a "fudge factor" when designing anything be it mechanical, electrical or otherwise."


Well put

[Laurentz]

Originally posted by HybridSS
The rods snapping in the new M3 engine only means BMW put a substandard part in an otherwise excellent engine.

It only happened on cylinder 5 I think. Don't really know the whole story though.

[Scott]

Number one reason:

EPA STANDARDS

Then a close second would be what AL said.

[Tony]

A mercedes owner saying he does not like OVERBUILT engines...wtf?

[Matts50]

Someone please correct me if I am wrong. From looking at some stock Cobra dyno sheets, the 390hp rated from the factory was underrated, right?


Matt

[Tom]

Originally posted by Turbo C-Ya
For example, the E36 M3 had problems with having such high compression that many engines were blowing. For the majority that didn't blow, the very fact that a few were blowing means the cars are at their full potential, so you are using everything efficiently.

*ahem* E46 M3 there smart guy

[Turbo C-Ya]

I was trying to argue. I know that an overbuilt engine is the way to go. Who wants rebuilds every 30k miles like the 1980's Porsche turbos. YOu have to be rich!

[Slash]

Since when did 1980's porsche turbos rebuild every 30K miles? i havent seen any with less than 60K origional motor.

The expensive power adders and other modifications needed to run 700HP on a mustang obviously dont fit the 30-35K price tag target... a 700hp stang would cost MUCH more than most people could afford.

BMW and Mercedes motors are also overbuilt. Every motor is...

Fuck look at the 2JZ motor.. over 1000HP on a stock block... but they sell it to us with 320 or so... its at 33% potential We are being cheated

[0HP930]

Originally posted by Turbo C-Ya
I was trying to argue. I know that an overbuilt engine is the way to go. Who wants rebuilds every 30k miles like the 1980's Porsche turbos. YOu have to be rich!

WTF?

My 1980s porsche turbo has been running for a total of 135K miles, 100K miles of that while set to put out between 117% and 135% of its factory power, and the motor has not been opened up yet though at this late stage it should be.

Some people mod out the 3.3L motor to reliably put out over 600HP but I am a bit more concervative than that.