The Car Tuning Guide look at the 505 tuning options. Which are the best modifications for the 505.
Available in standard form with power of upto 171bhp (depending on the year), so this goes to show the tuning potential of the 505. From this you can increase the power from anywhere between 188.1bhp to 290.7bhp with modifications varying from a few DIY mods to some pretty major engine work. The higher you go the more unreliable the car will be and you should expect to have to rebuild the engine regularly if you want to extract silly power. A big forced induction upgrade would be needed to push beyond the 100bhp per 1000cc limit.
Peugeot mods should include an engine swap to provide a better base to work from. The ‘171bhp 505 Saloons’ is a real gem in terms of power. The more powerful 505s respond exceptionally well to tuning mods. Car Tuning Guide have been impressed with the addition of stainless steel exhaust systems on the 505s , if you want to improve your top end go with an air induction filter. You should also get a better fuel pressure regulator such as those supplied by FSE
The next level of modifications involve taking more aggressive action. The 505 responds well to a fast road cam which is one of the best value mods out there. Internal engine modifications that should be high up on your list would be polishing and porting the head.
The most powerful 505 Saloon in our database offers 171 bhp. From this you can increase the power from anywhere between 188.1 bhp to 290.7bhp with mods we have outlined above.
A 505 with forced induction (turbo or supercharger) will give even larger power gains that this. The top 505 offers a base power level of 171 bhp. When setup for motorports we can expect to see almost mythical power figures approaching 222.3 bhp to 324.9 bhp! The 505s handling can be dramatically improved with some choice suspension modifications. To avoid other problems you should lower the car no more than 36mm.
We will have more detailed 505 modification guides in the near future. Please check the site regularly for updates.