Well OD does alot. with my 4.11's I could easily hit my speed limiter and
only be turning 3800 rpm. so I think I can say that it would easily hit 130
without the computer's interference. My engine does not have a high redline
at all(4800). typically the type of sports cars you mentioned run a mild
rear and that is what allows for their high top end. that's why a viper
isn't particularly quick in the 1/4(yes I know it's fast but a car with that
much power running a different gear has the potential to be alot quicker)
Joe W.
87 Shelby Charger 13.9
98 Dakota 13.1
----- Original Message -----
From: <brian.duffey@intelsat.int>
To: <dakota-truck@buffnet.net>
Sent: Friday, October 29, 1999 6:21 AM
Subject: DML: Rear Gears & what not
> DML,
>
> In the fog that is my normal morning routine, I was thinking about rear
gear
> ratios (don't ask!)
>
> Anyway, I was wondering what type (ratio) of gears are used in a sports
car
> (say Viper or Porsche) compared to a non-sport, yet still fast, car like a
> police cruiser.
> Thought process being somewhat like this:
>
> " Well a sports car has a higher reving engine ie: higher redline, so they
> can get away with a high gear ratio - 3.9 or 4.1 + say - so they get the
> quick launch, but with the higher rev, can still run top end at 140-150
mph.
> But what about a police cruiser? Those police trim Caprice cruisers are
> pretty friggin' quick off the line, and I would guess they can run top end
> at say 110-120 mph? Those are not particularly high rev engines, so how do
> they gear them to get the quick launch, and still retain the top end
speed?
> "
>
> Do they have some kind of secondary overdrive? Am I off the target on the
> cruiser top end of 120 mph? I'm just trying to take some practical
> applications and look at those in relation to our Daks... not trying to
> figure out how to outrun the man!
>
> Thanks DML'ers
>
> Duff
> '95 SLT 4x4 CC 318 4spd/OD - 3.55 LSD
> MSD 6AL - MSD Blaster Coil
> MSD 8.5 wires - K&N FIPK - F&B Stage I TBI
>
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:18:33 EDT