Hey Guys-


i just wanted to know why the flames shoot out of an rx7 aftermarket exhaust system, and why not out of piston powered cars?




Thanx,
Justin87rx7

 

Because rx-7's are bad *** like that!!!

Its just they way they are. The unused fuel gets pushed out in the the exhaust system. And becuase rotary exhaust are so hot the light the unused fuel.

 

Are flames coming out of any aftermarket system?

 

broooooommmmmm.......bap, bap, bap, bap.....BOOM! ahh.....gotta love it.

 

is afterburn bad for the engine??

 

gonna have to say no on that one...its just excess fuel been ingnited in exhaust like said above.

 

With a peripherial style exhaust port, the excess fuel just gets dumped out, well pushed out, into the exhaust by the apex seal. With the Renesis engine, and it's side-port exhaust ports, the unburned fuel gets carried around to be combusted again in the next cycle (that's why it's 32% more fuel efficient). So yeah, peripherial exhaust port means more fuel gets dumped in, and like was said before with a rotary engine's hot (1800 deg.) exhaust temperatures it's easy to ignite.

When porting is done, especially bridgeporting , there are times when fuel gets dumped straight into the exhaust system!

Flaming doesn't hurt the engine, but it looks awesome!

 

yeah... gotta love it. especially seeing other peoples reactions to hit. hehe....

 

sometimes my engine doesnt feel good till its had a few 'burps' after warming up

 

What Bridgeported said. Our cars run **** rich. Not by choice but design. Get a S-AFC your car will run better and you'll rid yourself of those flames. Unless you like roasting already dead roadkill.

 

hmm would a almost full RB exhaust sept dual apexi n1 mufflers do the flaming if so or do i gotta exhaust port it?

 

I believe if you have a cat it will arrest the flames. Any truth to that?

James

 

i have seen a number of high-flo cats that have allowed some small flames.

 

Hum, I have a downpipe, hi flow cat, n1 duals. I need to get somebody behind me

James

 

Cats will tone down the flames. Sometimes all you see is a black puff of smoke. A gutted cat or a mid pipe youll see big flames.

 

I have a bonez dp and mp, and stock catback, and i shoot massive flames.

 

i have an RB header, presilencer, hks 50mm catback, NO flames... kind of wanting some just for kicks... any tips?

 

Do a full bridgeport, run the a/f ratio a tad rich, and run a near open exhaust (straight pipe all the way from the turbo except for a 'straight thru design' muffler at the end) and you'll be having trouble not shooting flames

 

Hmm... my car never shoots flames and it's got an straightpipe exhaust.... then again it's an N/A...

 

how to get n/a with flames.............

 

Doesnt ahving a open vented BOV adsd to the flames as well? My flames are like 12" and blue in color with 3" back to HKS TItanium Hyper.

 

because rotorys god, when it get mad because a ricer, domestic etc. are trying to race a person it get pissed and blow fire that makes the ground shake, there kinda like valcano gods when they were babys.... im dumb...

 

Retard your timing and you have larger and longer lasting flames.

They also look a more blue color instead of orange..

 

i think i need to advance my timing. i cant even get my car through the RPM range without it popping and bucking from being so rich. how do i advance it?

 

Yes. When the bov goes off it removes air that was measured by the AFM. Causing the motor to run stupid rich for a few seconds. Thats usually why the flames happen when you remove engine load after a hard run through the rpm range.