Our PROBLEM is the fact that this is still "magazine lore". 6500 rpms for the Z06 to get to it's peak of 405? I think not! Try 1000 RPMs sooner.

You want 400 horsepower, the Z06 has it...

Have you priced cams for DOHC motors? I know mine only cost me 350...how much would 4 cost? 1400? There's about as simple as the math can get. Now, lets talk about valves. 93 for a set of 8 manley valves...now multiply times 8! 800...it's quickly 2200 dollars more than an LS1. go down the line with springs. You get to save money on pushrods and rockers though! 16 pushrods cost 100 bucks and 16 rockers are about 300. Now let's talk about "leveraged" cost....how many vehicles use the Aurora motor? I know several truck platforms and the fbody use the LS1. It's most likely going to cost more to implement the Aurora motor on that fact alone than what the highly optimistic ragazine is going to it's readers. Remember, they are just writers.

By the way, thanks for the break out...all be it, not exactly what I asked for. I wanted to know what the cost differences between a 400 horsepower 4.0 litre and 400 horsepower LS1.

By the way, any thing mechanical that is mass produced follows the same guidelines and thought process of anything else that is mechanical and mass produced. To answer your question in a previous post.

Tony

 

Vic,

I see 440hp @ 6500RPM, 550HP at 7250RPM & 650HP @ 10,700RPM on methanol. The 440 at 6500RPM is reasonable on an engine stand dyno but not installed in a production car. I’m not sure of the test conditions under which the article’s author is quoting the HP ratings. The Opel engine is not a startling break through design. It is standard stuff that others can do as well. The author may have been prone to sensationalize a bit to add more gee wiz factor to it. The laws of physics can not be altered. Within current material science we need about 40 liters of air to make 1 horsepower. The 440@6500 would be 30 liters to make 1 HP, the 550@7250 is 26 liters to make 1 HP. In a production car with a normally aspirated engine on pump gasoline it has not been done, by anyone. If Ferrari and BMW can’t do it within the $150K budget GM can’t do it with a $50k car. There are designs using ceramic or ceramic coated engine parts, pistons, cylinders, etc. allowing the engine to operate at much higher temperatures that may achieve those kinds of thermodynamics, but we aren’t there yet.
btw: I don't have a problem. Do you?
:) :) :)

 

Did you read the autoweek article , The engine had to have the intake reduced by 50% because it was making a hundred horsepower too much so the reduced the hp to 450 (it did make 550 at 6500 rpm so yes i'd say that it made the same amount of hp as the z06 does when it hits it's peaks around 5500 ). Now that's amazing . Also if you read my thread directly relating to yours i can only give rough cost estimates . I mean i know what it should cost but as we all know you could spend a thousand dollars on a bolt if it's on a limited enough production run and if you include the cost of tooling up and creating dies just for that one bolt . FYI that's what the government does alot . Also just because it's not in alot of gm's cars yet doesn't mean anything . Everything has to start somewhere :yesnod:

 

Dudes,
I am by NO means in love with my C5.... my next car will
be something else...BUT....... its a 2000 and I have put 61,000
trouble free miles on it and I am actually SURPRISED at how reliable
it has been. Its been fun and I have to say ...economical...
I just took it up to Frisco from Riverside California on ONE
TANK each way.....try THAT with a VIPER or a FERRARI
:eek: :smash: :)
P.S. OF COURSE GM is in this for the MONEY and PROFIT...
THEY WILL DO WHATEVER IS BEST FOR THEM ...WHAT ?
you think they LOVE YOU ??
GET REAL !!! :crazy: :rolleyes:

 

Also terry no offense but i will believe written facts and articles which i have given many different sources of before i will throw them out the window for conjecture and hearesay any day . No offense but put your money where your mouth is . You wanna argue the facts email the mag :)


[Modified by vic451, 11:06 AM 11/30/2001]

 

Vic,

Fix all the 'typos' and grammatical errors in your petition and I might sign it. My grammer, spelling, etc. isn't exactly perfect either, but if I'm putting a petition online for the world to see it's going to look like someone that grew up speaking and writing English wrote it. :D :cheers:


[Modified by QUIKAG, 1:46 PM 11/30/2001]

 

DUH, me no good at speak engalish . :conehead :conehead :conehead I am from france . :cheers:

 

I e-mailed you a cleaned up copy. It's better, but not perfect. :D Good luck!!