1. Weight reduction
You dont have to buy new things to make your car go faster. You can also take a lot of it out. Depending on what type of car you can drive you can reduce the weight of the car with around 200 pounds without doing really crazy stuff. This will have a positive effect on the acceleration of your car. Dont expect miracles but a difference will definitely be there. In case you want more information about it, we have discussed this subject already before..
2. Remove unnecessary things out of the enginebay
You might say that this is the same as the first part, but the effect is different. Getting rid of some things might make your car faster. We are not talking about fusebox tucks or wire tucks but getting rid of the tubes that suck the hot air out of the headers and into the airbox might increase the horsepower of the car. You can also block cooling channels going into the intake manifolds. These are all thing that the manufacturer put in the car to make it start easier and stuff. Thats nice but if you are mainly competing in races that is not your top priority. Although the gain might not be high, there are cases known of cars that will benefit a lot from this. How and what can be done is dependant on the make and model of your car, so its a good idea to ask it on vehicle specific message boards for example.
3. Brake stopper
4. Intake
5.exhaust
Ofcourse we will also discuss the exhaust. With some engines you will gain more by changing the intake, others will benefit more from an improved exhaust system. If your car is N/A, then you can choose between a 4-1 or a 4-2-1 header. A 4-1 header has more power in the higher range whilst the 4-2-1 will give you more power in the higher range. With turbo cars you also have several types but we continue about this more In this topic. With a bigger diameter exhaust you will gain power dependant on the type of motor you have. Getting rid of stuff like the cat converter will also help gaining power. When driving a turbo engine it can be said that the pipes should be as big as possible and as short as possible with the least amout of tubes.
6. OEM upgrades
You can buy aftermarket parts for your car, but sometime you don't even have to. Sometimes you can just install the parts of a better version of your car to improve the engine or handling of the car. Honda, for example, is known for this. Almost everything can be switched between the models which makes it a cheap alternative for the aftermarket scene. In some cases you can even gain more by taking an OEM part instead of an aftermarket one, like the skunk2 and ITR headers for example.
7. Strutbars
When looking for a better handling for a lower price you will almost certainly end up at the strutbars. You can find strutbars for prices as low as 40 dollar per set. For more information we reccomend you to read our article about chassis bracing.
8. Brakeducts
9. Spoilers
In case you have problems with over- or understeer then it might be a good idea to install a spoiler. A cheap spoiler from autostyle will probably not do that much good but a well thought after spoiler could save some seconds off your lap. For more information, please read this article about aerodynamics.
10. Pu bushings
We have doubted wether we should come up with lowering springs or pu bushings but in the end we chose pu bushings. The reason why is because you can better buy a good quality coilover kit instead of lowering springs and this is not the most easy or cheap way to improve your handling. PU bushings however are pretty cheap and will come as a welcome replacement for your old bushings. Just bear in mind that this will decrease the comfort of your car (like that is of any importace in a racecar)
There are of course a lot more things that could be added to this list but this is our personal top ten. In the end just think wether you need the parts. Some proper maintenance would be more important than an air filter as you can enjoy your car longer. Check always wether everything is in tiptop shape before you go racing. And think wether you need the car parts or you just do not have the experience to increase your times. Because in that case performance mods would probably do more harm than good.
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