How did you tune it like this Denzil? This sounds very desirable for what I
want...ecconomy since I am a pizza deliverer. Except you need the occasional
flurry of revvs to get you out of the way of that Mack truck that is
whistling towards you...
----- Original Message -----
From: Denzil Palmer <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, March 29, 2001 8:24 PM
Subject: Re: L20B mods. + mpg
> That's it, much greater efficiency. The same or greater amount of work is
> done using less fuel.
>
> I should have clarified that my motor was carefully built on a "torque for
> the road" basis, resulting in very good low and mid-range efficiency,
> excellent cylinder filling and carbs tuned fairly lean. The concept was a
> car that had a useful 4th gear from 25 -100 mph(1,500-5,800 rpm) for
example
> 30 -50 in 4th in 5.5sec or so, 60 - 80 in 4th in 7.5 or so. The "torque
> back-up or torque reserve", that is, the potentially available torque over
> the required torque at a given engine speed in the low to medium speed
range
> was greater than a motor tuned for big horsepower at high revs. This made
> hills virtually unnoticeable, even in 5th on sustained climbs with
> acceleration still available if required.
>
> I wouldn't expect the same economy with the same sort of driving with a
> standard motor with the SU's. Instead of 31 maybe you would get 27mpg, and
> significantly slower as well.
>
> ----------
> >From: "James Cox" <[EMAIL PROTECTED]>
> >To: [EMAIL PROTECTED]
> >Subject: Re: L20B mods. + mpg
> >Date: Wed, 28 Mar 2001 4:39 AM
> >
>
> > Are you taking into consideration that a motor with head work,
extractors
> > and free flowing exhaust is going to operate more efficiently than a
stock
> > motor? My engine is stock and running SUs and I even noticed an
increase in
> > power, torque AND economy by fitting extractors and sports system. Sure
the
> > motor will use more fuel if you floor it but your going faster too,
speed
> > comes at the expense of fuel. Correct me if I am wrong, but I believe
that
> > if a stock motor goes say.. 0-100 in 12sec then a worked motor will be
able
> > to do the same time using less fuel due to greater efficiency.
> >
> > James
> >
> >>
> >>
> >>well yeh i kane the crap outa it. according to my principal i reach
speeds
> >>well over 80kph between the 2 speedumps at our skool that are about
40mtrs
> >>apart. wanker. if i did get it to 80 the car would get hammered come the
> >>speed hump.
> >>
> >>but yeh we did a milage consuption test and i had to drive it like an
old
> >>fart (which sucked ass) and it only got 26mpg driving it like miss daisy
on
> >>a sunday. so i dont get it.. if a 15 second car is getting 30mpg.
> >>ohwell. tom what consuption approx u think u would get with the Z20e?
did u
> >>test it?
> >>
> >>Ryan.
> >>
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