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what kinda mods are there fo a 86 300zx NA and what are the avantages of there
 

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Bolt on mods:
Intake
2.5 inch exhuast
high flow cat
headers
JWT ECU
lighter flywheel if you have a 5-speed
stronger clutch

Internal engine mods:
performance cam kit
port and polish head
custom performance intake manifold

Misc.:
240sx Throttle body 60mm (only helpful if you have the custom intake manifold and/or port and polish head so skip this until then)

Stand alone fuel system( the best for getting the most out of any car but really expensive and only warrented for when you have a lot of mods)

MSD ignition system and coil( not really needed as the stock system is really good but if you have a lot done to the engine it can help a little)

Swapping differential (by swapping gears you can get better acceleration but you have to do your research to see what gears will work best with your set up. For most the stock gears are good enough)

Now that you know what is available realize that with all this time and money spent on this you will only gain about 30hp over stock. Do the money vs hp gained math and you'll see that it is much cheaper to sell your non turbo and buy a turbo 300zx or swap in a turbo engine. At best with everything done you'll hit about a high 14 in the 1/4 mile which isn't that fast, especially for all the money spent. So think to yourself how important going fast is and if you decide you want something that will be fast you better save your money for a turbo becuase the non turbo just won't get you there. On the other hand if you decide that you just want a nice cruising car and speed doesn't matter just do some of the basic bolt ons and leave it at that.
 
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