solomonschris

SOS, So buying a nice 993 to drive on the street doesn't make sense unless you spend north of $20,000 to mod it first?

Falcondrivr

Actually, there are 997 GT3s out there dropping into the $60ks now, so they've lost $70k!
Watch what happens when the 991GT3 comes out.

Cupcar

Just saw this, pretty funny and so true.

Bill Verburg

I don't know how you can say that
here are the drops for a G50.00 US Carrera(RoW is so similar as not to be worth showing), G50.20 US 993 and G50.30 CUP/RSR

the only time a 5 5speed Carrera(US '87-89) has more advantageous drops than a 993 g50/20 is from 1 to 2, 2 to 3 is so close that we can call it a tie, but from 3 to 4 and up the g50/20 has closer ratios

I still say that the /30 used in Cups and RSRs is just about perfect

race911

Except that sometimes the modified car becomes less than the sum of its parts. Rather, most of the time. I'll take a subtly tweaked stock car nearly 100% of the time, absent building something to a set of class rules.

Funny how analysis trumps conventional wisdom, hmm?

And I'll bring up the nasty side of regearing yet again--my yellow car at Laguna. Absolutely, positively costs me 1-1.5 sec/lap. But absolutely, positively of benefit at Sears and Thunderhill. (A stock 964 5 speed works great at all three circuits.)

Bill Verburg

That may be because of some, ummm, odd, gear choices in your transmission, unless you have changed them since I looked at the car. Generally you would expect smaller drops as progress through the gears is made

Here are your drops

race911

I'm showing a 1300 rpm drop 4-5 on my data at Thunderhill. (Don't touch 5th at either Sears or Laguna.)

race911

^^^^ I know you've posted ratios before, but what DOES your chart show for my car?

tcsracing1

a bone stock, clean 993 is a beautiful thing. It is the way we like them.

easy mods are welcome such as exhaust, key fob retrofit and suspension bits.

Body alterations are risky.

anything that can be undone is cool.

Bill Verburg

Here is the info provided by Kim and Steve, I don't have the tooth counts for 2-5

race911

OK, now I'm confused on the first chart. Cuz that yellow line shows a 4-5 split of 2K rpm, which is the 5-6 split.

(And my actual numbers vary slightly as I run the inch taller tire in a 275/40-17 or 275/35-18.)

Bill Verburg

the 4-5 split for yours is the yellow triangle, 1113rpm


x axis is From and each gear is indicated, 4 is from 4 to 5

race911

So the outlier there on the right is 5-6. I'm not shifting into 6th anywhere in the West Coast track known universe.

What exactly then is so screwy about the ratios?

Bill Verburg

3 is a little funky too and that's usually one of the most used gears, my 3 and 4 is where I catch out a lot of stock geared cars

and of course you have the stock very low 1 which gives the big drop going from 1 to 2 which is also not used on most tracks but is one of the most detested, after the overly tall 6, stock ratio for street use

Small apparent differences in the charts make for relatively large seat of the pants difference on a track

Bill Verburg

Compare yours to a really nice /20 regear, this is a friends daily driver but also sees a lot of track use, HI Mike