Re: shift points

[16v Jason <jason@scirocco.org>]

At 06:34 PM 5/23/2000 , gnz12345@oh.verio.com wrote:
> Anyone have any
> advice on the optimum shift points for a STOCK 16V scirocco in the case
> of a street drag race? Thanks alot for the 
> help.

Yep.  I derived the following shift points using my dyno curve and
gear ratios.  Shift points are determined where the axle torque
(engine torque * gear ratio * final drive ratio) is greater in the next
higher gear.  YMMV, as all engines have slightly different torque
curves.  You can see my curve on my website.

The figures were calculated by a little app I wrote in High School, and
like I said, are derived from my dyno results.  For those of you who
are curious, the reason the revs decrease for each consecutive shift is
because the ratios between gears 5 and 4 are closer than 4 and 3, which
are closer than 3 and 2... bla bla bla.

Basically, your stock 16V will lose massive power over 6000 like mine
does, so shifting between 6000 and 6500 will most likely yield the best
acceleration... but for exact figures, see below.  Enjoy.

SCIROCCO 16V - DYNO RUN - STOCK GEARING AND ENGINE.

SHIFT 1-2

       

56km/h

 

6510rpm
SHIFT
2-3

       

89km/h

  

6360rpm
SHIFT
3-4

       

126km/h

 

6120rpm
SHIFT
4-5

       

160km/h

 

6090rpm

0-100 km/h

      

8.4s
Top Speed

       

199km/h
in gear 5 at 6100rpm.

---

1987 Scirocco 16v
1989 Mercedes 190E Sport Euro


http://members.aol.com/rocco16v