Fire...
I got a large streetported 12a. It's got no shortage of power and my power curve is strong and consistant. My question is why does my car not pop or backfire when I let off the gas/ or downshift. I have zero emmisions and a long primary exhaust running off an RB header. My buddies car pops all the time since he changed his exhaust and he has zero porting.
Im not saying it's a bad thing, becuase I'm sure lots of people would prefer not to backfire, but does anybody know why I cant shoot flames. |
possibly cause your lucky and your car runs good, backfiring is not usually a good sign for your car, iim not sure why anyone would want it who doesnt have it...?
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Ignition genie?
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Ignition timing and air fuel ratio. You're probably running leaner than your friend. Good tuning!
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No cats wil make you backfire,and yes running rich,I even heard that if you have an exhast leak it will make it do it.
I used to drive and then park and try to get the hell away from my car asap,with out making a scene,it used to sound liek a 12 gauge when it backfired |
Only thing im gonna say here is WHY FOR THE LOVE OF GOD, do you want it to do that. Thats like saying I have a new car and I want it to smell like cigarettes :(
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Originally posted by SoRRoW No cats wil make you backfire,and yes running rich,I even heard that if you have an exhast leak it will make it do it. I used to drive and then park and try to get the hell away from my car asap,with out making a scene,it used to sound liek a 12 gauge when it backfired ~T.J. |
fire is fun at night, is it not...
I'm actually quite happy that since getting my new motor my car no longer sounds like a shotgun when I turn it off. I was just under the assumption that this was normal becuase of the nature of the motor. I was just wondering if I might be running to lean which is not a good thing. I would rather hear pops running rich than hear the sound of a hot dead motor from running way to lean. |
Originally posted by SoRRoW I used to drive and then park and try to get the hell away from my car asap,with out making a scene,it used to sound liek a 12 gauge when it backfired |
I used to work at a place where our company car was an RX-4 wagon. I think it had a 13b. Our office was one door down in the same building as the Union Rescue Mission. We learned that if we revved the engine to about 5-6k, then shut the ignition off, you'd have 10-15 seconds (enough time for us to be innocently at our desks) before...BOOOOMM!
Those little old ladies who worked there crapped their depends more than once!!:D It was also fun watching the wine-o's scatter like ants! |
Originally posted by mwpayne I used to work at a place where our company car was an RX-4 wagon. I think it had a 13b. Our office was one door down in the same building as the Union Rescue Mission. We learned that if we revved the engine to about 5-6k, then shut the ignition off, you'd have 10-15 seconds (enough time for us to be innocently at our desks) before...BOOOOMM! Those little old ladies who worked there crapped their depends more than once!!:D It was also fun watching the wine-o's scatter like ants! So do you guys just mean a shotgun like backfire? Just shooting some flame shouldnt be bad for the car, its just unburnt fuel being ignited....right? And what I'm talking about doesnt make any noise. |
You would also have a engine with no oil still running at 2-3k
Right! I remember that thing locked up several times due to no oil. We'd put a couple of quarts in it, it'd fire right up.
It was a great car for a station wagon. |
Originally posted by RotorMotorDriver Ok uncle buck ;). ~T.J. :rofl: I JUST WATCHED that movie on superstation last night!! Lol That car kicks ass! Haha, that'd be the supreme winter beater :cool: Jeff |
Originally posted by SoRRoW I used to drive and then park and try to get the hell away from my car asap,with out making a scene,it used to sound liek a 12 gauge when it backfired Next time you're routinely at a shopping center or the mall or something, enter the parking lot at high speed, slide into a space using the e-brake, get out and run screaming. When it backfires, hit the ground, scurry between some other cars, wait a few secconds and run, screaming some more... Then right when you get to the entrance of the mall or store or whatever, Act like nothing happened. |
Originally posted by Pele Why not make a scene? Scene's are fun... It's the only time I get called "sir", aside from when I'm pulled over. Next time you're routinely at a shopping center or the mall or something, enter the parking lot at high speed, slide into a space using the e-brake, get out and run screaming. When it backfires, hit the ground, scurry between some other cars, wait a few secconds and run, screaming some more... Then right when you get to the entrance of the mall or store or whatever, Act like nothing happened. |
Or put it in gear, and pull the e-brake,, as it rolls into a nice new BMW or lexus. or even down the parking lot.
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4 foot flames
well my car puts out about 3-4foot flames whenever i let off the gas, but usually no backfire, all you hear is the unburned gas go....i have a pacesetter header, a mazdatrix silincer, a obx free flow muffler, and 2 and a quarter inch piping all the way thru...i also have a upgraded feul pump and a slightly tuned carbuerator....i think the free flow muffler may have the most to do with it tho....must be running rich but you got to figure rich is better than lean..
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Originally posted by defprun You would also have a engine with no oil still running at 2-3k :eek: Dan |
Y'all realize I was joking, right?
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Ok uncle buck ;). ~T.J. [/B] Now THAT is funny. an exhaust leak will produce nice loud neighbor waking backfires, and nice fireballs from high revs while driving! great for scaring off tailgaters! nothing like a good face full of flames! they never get close again. |
You guys should have heard and seen my friend in his TII on the way up to and back from a large MI meet. He had just had the motor rebuilt and streetported. And had not had time to tune the car perfict. So for a few hours each way I fallowed him on the expressway in my FB to make sure he made it. That was funny as hell, he would let off and a HUGE flame fallowed by the 12guage style backfire. Somone in a suv cut me off and go between us, he let off and almost tosted this guys bumper. He did toast his own bumper though.... heh. He has that fixed now. :)
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