[s-cars] was, 0-60 , 1/4mile, now:Re: superchargers are bad, mmkay?

[Paul Gailus]

Well, yes I have ;-)
Superchargers were used in 2-stroke diesels such as those from
GMC/Detroit Diesel and the Electromotive div. of GM.
Trucks, buses, earthmoving equipment, military vehicles, locomotives.
For example, the 71 series of engines (71 cu. in./cyl.) that used the
6-71, 8-71, etc. Roots blowers.
A good part of the reason for these blowers was exhaust scavenging
as well as supercharging.
I believe that few if any 2-stroke Diesels are made anymore due
to emissions and fuel economy issues.

Paul


> Have you ever seen a supercharged dumptruck, semi, bulldozer, ...anything
except
> a handfull of cars?


----- Original Message -----
From: Noah
To: <s-car-list at audifans.com>
Sent: Saturday, June 05, 2004 9:33 AM
Subject: Re: [s-cars] was, 0-60 , 1/4mile, now:Re: superchargers are
bad,mmkay?


> My main issues with our arch-nemesis, the supercharger:
>
> 1. What cars come with superchargers as oem equipment? (a handful of
> gooberific cars that are known for flying to bits in less than 100k.)
>
>     When was the last time you heard the supercharger on a semi
> spooling/blowing off next to you? (that's right, you never have. that's
> because turbos outlast superchargers by so much its not even funny). Have
> you ever seen a supercharged dumptruck, semi, bulldozer, ...anything
except
> a handfull of cars?
>
> 2. Superchargers generally involve spinning something heavy at rpms 1.5-2x
> higher than the engine speed. I just can't get myself to think (regardless
> of lag, etc) that this is a good idea compared to spinning a tiny impeller
> to achieve the same end (albeit at much higher speeds.)
>
> I'd just rather deal with lag issues and have the superior efficiency.
>
> -Noah
> -92 S4 - Eibach/Bilstein Sport (oh it's ON! details to follow)
> -84 urQ