Z Backfire ??
#7
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Its not backfire, its afterfire. Unlit fuel in the exhaust. Backfire is bad for the engine, afterfire is fun. Happens with alot of turbocharged cars since they run much richer than normal.
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#9
im not exactly sure about the specifics, but i know one of those is actually good somehow for a turbo, or something, i remember hearing about it somewhere but know nothing about it
who wants to clear it up
who wants to clear it up
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when i put my injen SES true duals on and my resonated test pipes, i get some fire out of my exhaust when i rev, sounds like backfire, looks like backfire, must be backfire?? LOL, dont know....but i like it
#13
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Originally Posted by tekk
if a turbo car backfires a lot, does it mean that the car is not tuned properly? ie its not making as much power as it could?
But this only occurs momentarily, on lift, which is when the BOV vents.
bill
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Originally Posted by teknochild
im not exactly sure about the specifics, but i know one of those is actually good somehow for a turbo, or something, i remember hearing about it somewhere but know nothing about it
who wants to clear it up
who wants to clear it up
A non-FI car running rich is not good. It causes you to lose power, not gain. It doesn't really help the engine's longevity either, since most NA's don't run quite that hot.
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Alot of turbo cars (including race cars) are designed to "pop" out the exhaust when they let off the gas in an effort to keep the turbo spooled. The "pop" in the exhaust gives the turbo a little boost of speed, thus making for less turbo lag once you get back on the gas.
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Originally Posted by ouch1011
Alot of turbo cars (including race cars) are designed to "pop" out the exhaust when they let off the gas in an effort to keep the turbo spooled. The "pop" in the exhaust gives the turbo a little boost of speed, thus making for less turbo lag once you get back on the gas.
This isnt correct, the turbo has nothing to do with the exhaust at all. Turbo just shoves more air into the engine it has absolutely nothing to do with getting more "pop" or speed from afterfire coming out of the exhaust. Turbo cars just run much richer that is where the afterfire comes from. Extra unburnt gas going into the exhaust and igniting because of the heat.