Williams Performance Stats (but not 0-60)

[riplash]

Anyone got any statistics for the Williams like..

0 - 100mph

60 - 100 mph

etc?



Cheers!

 

[rt172]

0-100 Varied between 18 to 20 seconds in my Williams 3. Here are a load of random AP22 runs from the Williams. You can work out rough time between speeds with a bit of subtraction...

Start Speed 0.0mph
mph s g ft hp
10.0 0.94 0.55 6 35
20.0 1.86 0.47 26 61
30.0 2.82 0.46 62 92
40.0 4.35 0.31 140 85
50.0 5.81 0.30 236 106
60.0 7.97 0.21 410 99
70.0 10.22 0.17 625 106
80.0 13.71 0.13 1009 107
90.0 17.30 0.13 1458 127

Start Speed 0.0mph
mph s g ft hp

10 0.96 0.49 6 31
20 1.95 0.47 28 61
30 2.87 0.49 62 97
40 4.28 0.34 134 94
50 5.65 0.33 225 118
60 7.37 0.23 365 107
70 9.52 0.21 570 123
80 11.69 0.21 809 147
90 14.47 0.13 1159 129
100 17.72 0.13 1613 156

Pk Power: 84.6mph 12.70s 931ft 161hp
Peak G: 9.3mph 0.89s 5ft 0.52g

----------------------------------------

Start Speed 0.0mph
mph s g ft hp
10 1.01 0.54 6 35
20 1.91 0.49 26 64
30 3.15 0.37 72 75
40 4.47 0.35 140 99
50 5.8 0.34 227 119
60 7.7 0.21 382 101
70 9.72 0.24 574 134
80 12.39 0.14 870 112
90 15.58 0.14 1268 135
100 20.36 0.08 1940 127

Pk Power: 96.7mph 18.35s 1650ft 152hp
Peak G: 11.7mph 1.14s 8ft 0.56g

----------------------------------------

Start Speed 0.0mph
mph s g ft hp
10 1.05 0.46 7 30
20 2 0.51 27 67
30 3.4 0.34 80 69
40 4.63 0.37 143 101
50 5.87 0.34 225 122
60 7.88 0.21 388 102
70 9.93 0.21 583 124
80 12.58 0.14 877 112
90 15.72 0.15 1269 139
100 20.1 0.06 1885 110

Pk Power: 99.6mph 19.83s 1846ft 148hp
Peak G: 23.8mph 2.32s 38ft 0.54g

----------------------------------------

Start Speed 0.0mph
mph s g ft hp
10 0.98 0.57 6 36
20 1.83 0.49 25 64
30 2.73 0.5 58 100
40 4.16 0.33 130 91
50 5.54 0.34 222 121
60 7.42 0.22 374 105
70 9.48 0.21 571 125

Pk Power: 74.8mph 10.53s 683ft 131hp
Peak G: 18.1mph 1.64s 19ft 0.57g

----------------------------------------

Start Speed 40.0mph
mph s g ft hp
50 1.29 0.35 85 124
60 3.51 0.21 266 102
70 5.41 0.23 447 133

Pk Power: 69.2mph 5.26s 432ft 138hp
Peak G: 52.6mph 1.61s 109ft 0.37g

----------------------------------------

Start Speed 40.0mph
mph s g ft hp
50 1.34 0.32 88 115
60 3.49 0.2 262 96
70 5.51 0.21 454 121

Pk Power: 67.1mph 4.91s 394ft 128hp
Peak G: 47.1mph 0.94s 60ft 0.35g

(Unit not set up for bhp figures)

 

[Ben H]

Autocars did a test on an original Willy with 2000 miles on the clock (barely run in really). They noted that they expected it to free up a lot, as the 16V they tested had. The 16V had also got a better 0-60!

0-60 - 7.7 (they only do 57mph in 2nd)

0-100 - 20.8

30-70 - 6.9

50-70 (in 3rd) - 4.6

50-70 (in 5th) - 9.8 (the tall 5th gear for you)

As Im sure most Willy/2.0-converted 16V owners would agree and most 1/4 mile times suggest, these figures are on the conservative side for a Willy.

 

[rt172]

Interesting that AP22 figures match the Autocar ones quite closely. I dont think my Williams was anything out of the ordinary in terms of power/acceleration. As std. it put out standard bhp and torque.

There does seem to be plently of evidence that mildly tweaked Willys get quite a bit quicker.

 

[007]

Autocars test was in the wet.

Also Different Willies seem to have different Bhp & performance.

Mine was 0-100 17.3secs average on the AP22 although my last run was just under 17secs.

 

[Mitchy]

What tilt setting are you using???

I detest these things, i had 1 for a week and quickly got rid. Just a waste of money IMO. If you dont like the time just fiddle with the tilt setting and heah bobs your uncle. As for the CDA factor, its virtually impossible to work this out properly, my calculations were all over the shop. The deceleration tests were as much as 7-8 secs out from what i had previously recorded. I done around 50 tests and the results were so varied that it was impossible to enter the correct information. Ended up taking an average, and the figures were just silly to real life figures as proved on a RR.

 

[007]

I cant remember the Tilt but its different for different cars. I think 6 or 7 maybe!

I used a GPS to set it thanks to advice from the guys at Peformance meters.

Once I had the setting I checked against a video tape of the dash while acclelerating.

This gave around 0-105 on the speedo of 17.4secs on the AP22 of 17.3secs average.

30-70 in about 6.2/6.3secs.

0-60 in about 7.1/2 secs but you need to change to 3rd in the Williams to hit 60.

This was in 22 degrees. My times were slightly better in the cold but without the video evedence I dotn quote them as they are unchecked.

I sold the AP22 as once you have the times its useless unless modding. If you still have the AP22 and can get a GPS I may be able to find the info on setting it up!

 

[rt172]

Quote: Originally posted by Mitchy on 05 November 2003


What tilt setting are you using???

I detest these things, i had 1 for a week and quickly got rid. Just a waste of money IMO.

Its far more accurate and consistent than a stopwatch and proved invaluable for comparing modifications. If youre just dump it on the dashboard like a numpty and dont bother finding a way to calibrate it, then of course itll give you crap times.

I took mine down the strip a few times at York, and on tilt setting 0.005 the AP22 consistantly over read by between 0.1 and 0.2 seconds over a 1/4 mile. Thats not too bad in my opinion. Enough to give you an idea of the cars performance.

For years most magazines tested using a "5th wheel" on the road which tended to skip off the road at high speed giving conservative readings, but most people take magazine stats as gospel...0.2 seconds out over a 1/4 mile seems good in comparison.

The main problem with the AP22 is that you need a totally flat and bump free piece of road to use it on. I think a lot of people who buy them dont understand how they work. Ive read a lot of "I timed it with an AP22 and got a great time even though i was going up hill". Going up hill causes the unit to tilt back, fooling the unit into thinking youve accelerated more. vice versa for downhill.

I only ever used 2 carefully selected pieces of road for my runs, the one where I could reach 100mph was miles away, so usually used a shorter piece of flat road where I could only reach 70 before needing to break.

I wouldnt recommend taking AP22 results as gospel because of the various factors that can effect the read outs, but its not difficult to get it accurate enough to be useful.

If you dont like the time just fiddle with the tilt setting and heah bobs your uncle.

But if youre the sort of person that does that, then why not just save your money and pretend you have an AP22 and make up a time?

 

[Mitchy]

I cant remember now, isnt the tilt setting related to the suspension setup of the car?? The times vary quite a bit with the difference between the lowest -highest settings. Hence if you dont like the time, its easily changed to make yourself believe you have a faster car than what you actually have.

Again as to the CDA input...... Its the biggest waste of time. The results i got from that and on the real rollers were a laughable difference.

 

[007]

Its worthless unless set up properly - even then you need to run on a perfectly flat bit of road with no major jilts.

As you my times were all over the place - thats why I contacted PM and got them to help me set it up.

I wouldnt put much faith in a Rolling Road either tho - each one seems to give cars differing bhps and as little as your tyre pressures can alter you result.

 

[riplash]

Cheers for that guys.. originally wanted it to compare my car to a friends, but those figures will provide some sort of benchmark if/when I want to find out whether my Willy is "a quick one".

 

[2 live]

heh

quik willys run sub 15 sec 1/4s..................

thats all u need to know really............now go try it out lol

 

[riplash]

I intend to next season man, dont worry bout that