Another backfire thread. ported 13B
I couldn't find a good answer by using search...so here it goes.
Ported 6port 13B. Running VERY rich. No cat. Any time I let off and press the throttle again KA-BOOM!!! Still is FI. And another question. Is backfiring bad for a rotary motor? |
heh my 88 TII was like that, but it had a 3" straight pipe, and 720 cc/min secondaries... my 87 backfired sometimes too, especially when i took the mufflers off.... my REPU when it ran loved to shoot flames... my 84 never really shot flames, but it only ran for 15 minutes
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So constant massive backfires won't hurt the motor?
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Mine does the same thing. The flame lights up all three mirrors at night.
Only experience I have is from a friend of mine, his eats mufflers (we believe because of back fireing) I have the RB system and it has yet to suffer any noticable ill effects. I would find it hard to believe this could hurt the motor being that it is designed to handle internal combustions of far greater force than a back-fire delivers it. Only problem I could see is carbon from the exhaust getting blown back into the motor but that stuff is in there anyway so.... |
From what I gather, it does not harm the rotary, but makes Ricers go "oooh, ahhh"
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OK guys I don't understand how it could possibly be pulled into the motor.
1 it's a mixtue being blown out of the exhaust 2 it's not really a "backfire" its shooting flames |
is this an original SE or a 13B transplant? what do you have controlling the fuel injection?
if you can't find a safe way to lean things out where you need it, then i'd say play around with different plugs (both type and heat range) and also maybe play with the timing a bit as well. |
Originally Posted by Brent_F
Only experience I have is from a friend of mine, his eats mufflers (we believe because of back fireing) I have the RB system and it has yet to suffer any noticable ill effects....
RB/Prima Flow, in my experiences, can take anything you throw at them ... |
well with tips in an ebay muffler it blows em in two lol
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Originally Posted by blackbirdzach
Is backfiring bad for a rotary motor?
http://images.rotarynews.com/images/.../Muffler-s.jpg |
thats great lol whats up with the chain?
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Originally Posted by YapaKanichi
thats great lol whats up with the chain?
http://rx-sevenandahalf.com/images/side1-s.jpg |
WHAT!! LMAO!!! Dude thats the coolest thing I've ever seen. I WANT ONE!! LOL! Oh man. thats cool as shit, I'm gonna make one at school.
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Good job with that muffler. I've yet to see one that damaged
And that trailer is nice too. |
Originally Posted by Blake
Thanks for the input guys. I'm getting more and more hooked on RX7's everyday. I've had all sorts of toy cars, but nothing as fun as this. :) |
Originally Posted by Brent_F
Good job with that muffler. I've yet to see one that damaged
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