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harmfull mods for the N/T

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bnpimpn

20+ Year Contributor
604
0
May 10, 2002
medicine hat,
alright i was just wonderin what some mods could actually harm my cars engin life in the long run...i know nitros would eventually...what else should i look out for?
 
anything will harm your engine if not installed right and kept maintained properly.. : ) .. And if you plan on driving your car hard make sure you use 94 octane gas or higher.. that is my recommendation.. i found out the hard way when my oil pump stopped pumpin oil and my engine seized..(i know that had nothing to do with the octane of my gas but still higher octane will run smoother. just my 2 cents)
 
You should use the lowest octane rating that doesn't make your motor knock. For example, if you put 87 in your car and it knocks then step up to 89, if it still knocks then keep going up till it runs good. Higher octane fuel actually contains less energy.
 
i run $5.00 worth of 110 in mine mixed with 93.
 
In some cars, when lower octain fuel is used, it may be compressed to the point where it ignites before the spark plug fires(preigniton, knock, detonation.......) Since the lower octain fuel combusts at a lower pressure, it contains MORE energy than a higher octain fuel, which needs a higher pressure to spontaneously combust (less energy).
 
yes, the only reason to run higher octane fuel is because your car is actually running into detonation problems which I doubt is happening with just bolt ons. Unless you are turbo, high compression, lots of advanced timing, nitrous, etc, using high octane fuel in a car tuned and designed around low octane is a waste of money.
 
Flash Point, which is the point for any fuel mixture where it will ignite under certain temperature and pressure combinations has nothing to do with the energy contained in the fuel mixture. The fuel mixture ignites at a lower pressure and temperature because of the specific heat required to raise 1 gram of the mixture 1 degree celcius. That means it requires less energy to combust. The actual energy the fuel has doesn't mean anything. You could run a fuel mixture that contains any amount of energy and it could be as useless as a fuel that has nearly no energy. The energy released by the combustion is what drives your car. You can't have combustion without oxygen and that is the best way to get more "energy" out of your fuel is to get as many oxygen molecules as possible into the cylinder. The computer will supply the right amount of fuel via the injectors (if the injectors, fuel rail, and fuel pump are capable) so that the air:fuel ratio is as close to it's stoiciometric and most efficient ratio of 14.1:1
 
k so my engine clicks sometimes and when it starts tickin i just rev THE #@%#@%#@%#@%IN HELL out of it for a few seconds and it goes away.. does this mean it's cuz i used 87 octane???? i been using 87 lately cuz i lost my job and i'm tryin keep my expenses at a minimum for a while
 
knocking actually sounds like someone knocking loudly on your engine. really fast ticks are usually sticky valves, springs or your lifters..

You should try to boosting if you're only running 87 Octane... i know i know.. gas prices here are insane.. that's why i'm planning on getting and ESi... cheaper gas and MUCH cheaper insurance - but i can always get an HRC turbo and still keep the ESi insurance badge :)
 
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