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-   -   What HP is safe for aircooled engine??? (http://forums.pelicanparts.com/911-engine-rebuilding-forum/836533-what-hp-safe-aircooled-engine.html)

txhokie4life 11-05-2014 08:52 PM

Jv911sydney
Thank you for the candor
This is the type of information I am looking for.
Mike

Steve@Rennsport 11-06-2014 03:46 PM

Quote:

Originally Posted by txhokie4life (Post 8340009)
Good Question Steve: To me it's hard to come up with a budget. I'm an engineer -- so everything is a trade-off to me.

Totally understand.

Quote:

Now I'm thinking about building out the 3.8 engine and considering my options.
The labor is free -- or free enough, as I will build the engine, and/or have a friend help out. Considering what I have to start with -- I think ~$10k is the budget for parts.

I'd like to reliably be in the 350-375HP to the wheels range. I'd like to think of this as a 100 hr engine (do it once, do it right, be done with it). I'll be lucky to run this car 4 weekends a year.
350-375 RWHP is about 390-420 BHP which you will not achieve using factory heads; they simply cannot flow sufficient airflow to support that. Late 993 heads are good to about 360 BHP and a little more IF they are flowed by an expert.

JMHO, but your budget is about $10K low, based on the hardware needed to get close to your target.


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