Re: [DML] Horsepower vs Torque

[Jim Strickland <ihaveanaccount@xxxxxxxx>]

On Sun, 02 May 2004 18:55:55 -0000 "content22207"
<brobertson@xxxxxxxxxxxx> writes:
> My
> contention, then and now, is a high rev'ing turbocharged small
> displacement engine does not produce very much torque. 

what's "very much"?
A turbocharged 1.5L BMW F1 engine generates 500ft-lb of torque.
A production 2.0L rotary twin turbo generated more torque than the 4.6L
northstar v8 (297 ft-lb vs 295 ft-lb).

In fact, smaller engines generate more torque for their size than larger
engines.  A turbocharged Lotus 2.2L makes more than TWICE the torque for
it's size than the chevy 350.  

Your assessment of the chevy 350 is also not entirely accurate.  You say
that the "185 Net HP" translates to 330ft-lbs of torque, but the peak
horsepower for the vette's 350 is attained at 4000 to 5000RPM.  There is
much less HP at 3000RPM.  Also, I don't know of any 350s that have HP as
low as 185 and torque as high as 330ft-lb.  


It's normally expensive and a pain to replace the transmission as well as
the engine in a conversion, but I'd consider an engine swap to be
incomplete if you can't count on the transmission to take the beating
that an engine can dish out.  

If you're replacing the engine in the Delorean, you've probably already
passed the point where the 'collector status' of the car has any value. 
Personally, it seems unlikely to me to swap a PRV back into a car that's
gotten an engine swap to another engine.  I think the car would have to
have significant colllector appeal for such a "unswap" to be reasonable
or desirable.


Jim 
1537

...
> 
> That's what killed Darryl Tinnerstet's input shaft (a stock 350 is
> "only" rated 185 Net HP, but at 3,000 RPM that translates into 330 
> Ft
> Lbs of Torque).
> 
> I do have a spare high compression Ford 460 you might be able to
> shoehorn back there...
> 
> Bill Robertson
> #5939
> 


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