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About gears......

Hmmm, I should be able to tell you some things about gearboxes, since I amused myself with my 16 v, the 1.9 converted from the 1.6 and the turbo ofcourse !!( also see the story's about them !)
Gears, or ratios are more important than you should think. The use of changing the different ratios is a thing that's has been often underestimated. At the 205 it's really necessary, because gear ratios isn;t Peugeot's best point,... at least not when you want a car that handles like a real machine ! This makes that the 160 BHP 16v in the 205 together with the standard 1.9 gearbox doesn't perform at all. You simply won;t get more than keeping up with the other 16v's on the road (like Gold's and Vauxhalls). And to be honest: I really want more, especially when I paid quite much for the 16v transplant.... I want to crush the stupid Golfs, and only show them my tiny little rear ! Well, it's possible: a very easy solution you can find in using the 1.6 GTi gearbox. This one pulls hard at lower speeds (it revs earlier, especially in the 1st gear where the 1.9 box is tooooo long) but will end quicker, giving a lower top speed. Just for the test: put a 1.9 GTi driver in the same car (1.9) with a 1.6 gearbox and a little wet weather,... result: spinning wheels in the 1st gear ! But,.. after a little searching and some trial- and error we came to the conclusion that a combi-box would be the best choise. That's because the 1.6 box was cool when you wanted to race but on the highway it gave a bit of a nervous making noise, and a top speed to laugh about.

First I'll show you which ratios are available at Peugeot (and Citroen),  so what are the ratios you could make a choise of,.... Speeds are at 6500 rpm,... and than up to the rev-limiter say 250-500 rpm more ! (for the 16v it should be more more more !!!!! (something like 8000 or so !).

  1 2 3 4 5 6 E
205 D 1.8 GRD 3.308 1.882 1.280 0.969 0.757 - 3.471
  61 108 158 209 268 -  
205 XS / Rallye 3.418 1.950 1.357 1.054 0.854 - 3.584
  54 94 135 174 214 -  
205 1.6 GTI 3.251 1.850 1.360 1.069 0.865 - 4.063
  53 94 128 162 203 -  
205 1.6 GTI Close ratio 3.308 1.882 1.280 0.969 0.757 - 4.063
  52 92 136 179 229 -  
205/309 1.9 GTI 2.923 1.850 1.360 1.069 0.865 - 3.688
  65 103 141 179 221 -  
205 1.9 GTI Gutmann 2.923 1.850 1.360 1.069 0.810 - 3.940
  61 97 132 168 221 -  
405 GR 1.9 3.251 1.850 1.148 0.829 0.658 - 3.938
  55 97 156 216 272 -  
405 MI 16 2.923 1.850 1.280 0.969 0.757 - 4.429
  54 86 124 164 210 -  
405 T16 3.4166 1.8181 1.25 0.9687 0.7674 - 3.9333
  12x41 22x40 28x35 32x31 43x33 - 12x59
  52 99 144 185 234 -  
306 GTi 2.92 1.87 1.41 1.15 0.92 0.79 4.05
  60 93 124 152 189 221  
               

 

5e overbrengingen;

0.880 205 standaard
0.865 205 1.6 & 1.9 GTI
0.854 205 XS / Rallye
0.800 205 Diesel
0.7674 405 T16
0.757 405 MI 16 / 205 Diesel 1.8 GRD
0.658 405 GR 1.9

Eindreducties;

3.471 205 Diesel 1.8 GRD
3.584 205 XS / Rallye
3.688 205 1.9 GTI
3.939 205 Turbo Diesel / 405 GR 1.9
4.063 205 1.6 GTI
4.429 405 MI 16


 



 

The formula :

If you want to calculate the speed of your 205 at a specific rev you can you the following formula.... remember: copy the exact formula, and don't forget any quote's !!!!, else the answer of it will give the speed from an F16!!!!

Speed=( in Km/h) (
RPMM/(Rendd*Rgear))*(((Vd*2.54)+(2*(BmCC*(Bp/100))))*pi)*0,0006

RPMM= RPM in thousand's

Rendd= Final drive, see table

Rgear= Gear ratio of the specific fear

Vd= Rimm diameter ( 14" or 15" probably )

BmCC= Tire measurement in centimeters ( 18,5 or 19,5 )

Bp= Tire thickness (or rate) ( 55 of 50 )

pi= The nice scientific number from about 3,1416


The Gearbox from the 16v, the turbo & the T16;

What we did is mounting the final drive from a 1.6 into the 1.9 gearbox, and changing the 5th gear into a longer one,... for the highway ! This gear was the onbe from a 205 diesel. You couls also contact Gutmann for some different ratio's, but the prices will be high: between f349,- and f398,- (something like 100 pounds) for a 5th gear and about f749,- (about 200 pounds) for the final drive. Cheaper option is to go to the car-dump and search for the specific gearbox.!
The gearbox we created like that was quite a success; really racy on the city roads till 170 km/h, and creating some higher speeds on the highway... up to 225 km/h or so. The only   thing that I didn;t 100% agree of was the shifting between the 4th and the 5th gear,.... it was just a little bit to far out of eachother,... so when you wanted to shift fast,.... kkkrrraaaaaakkkkkkk,.... haha !, followed by a little power loss, but than,.,... like a rocket again !

205 2.0 Turbo 8v

v

205 1.9 16V

2.923 6500 rpm 63 1.9 box 1 2.923 59 From the 1.9 gearbox
1.850 100 1.9 box 2 1.850 94 Standard 1.9 boxl
1.360 136 1.9 box 3 1.360 128 See above
1.069 173 1.9 box 4 1.069 162 See above
0.865 214 1.9 box 5 0.800 217 5th from a 205 Diesel
3.810 Final drive from a 205 Diesel E 4.063 Final drive from a 1.6 GTi

 

Besides this home-made gearbox a friend of me with the former 2.0 16v (and turbo etc etc, read the story of the turbo) experimeted a lot with different ratios.... and sometimes they were simply too long, or too short. He also did a 1.9 conversion to a 205 XS and used a 309 16v gearbox for that car. This was one of the better performing boxes: very close ratio in the lower gears (1-3) and longer ratios in the 4th and 5th gear,.... nice to drive on the highway ! When that car ran from zero till fast it sounded almost like a motorcycle,...

Old & new model differences

On the picture below you can see one of the differences between the old- (BE-1) and the new (BE-3) type gearbox; the oil-fill hole is located at the front of the old box (2) and at the side of the new model (and late old model) boxes (1).