| ae86dorikin |
For sale one Knight Sports Fuel Cut Defencer, used. For Series 5 RX-7 Turbo (89,4 +) FC3S.
Works perfectly.
Located in edmonton, 60 O.B.O. |
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| Wookey |
| pm SilviaDrifter. he's been looking for one. |
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| rhd rx7 |
| what are they used for and how do u install them? |
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| ozzmodan |
Exerpt from teamFC3S.org:
When Mazda designed the car, they wanted their production Turbo rotary to be considered reliable and not tarnish the rotary reliability reputation. They imployed many tricks to achieve this and one of them was to maintain a maximum level of boost that you couldn't exceed. I guess they worried that if Joe Shmo V8 was under the hood pulling vacuum lines and happened to rip out the wastegate line, the engine wouldn't try to launch the apex seals into orbit. So, they programmed the computer to cut fuel off to the rear rotor at approximately 8.6psi of boost. This is measured by the Pressure Sensor found behind the stock air box on the strut tower. They ran a vacuum line from the intake manifold to this sensor to control boost. Just to make extra sure everything worked the way they wanted, they used that box to control the secondary injectors which come into action over 3800rpms. So, just pulling the vacuum line won't help. There are many ways to defeat this cut off. One of the least expensive, most popular ways is the Racing Beat Defender. This just lies to the ECU by introducing more resistance and lowering the signal seen by the ECU low enough so that it doesn't sense enough boost to cut fuel. This can cause the fuel mixture to lean out but, I assume Racing Beat felt this was better than having the rear rotor melt down from no fuel.
The Knights Sports one would work the same way.
Kyle |
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| ehos |
quote:
Originally posted by rhd rx7
what are they used for and how do u install them?
As for install, it's just plug and play, VERY easy. Open hood, find connector, plug it in. Done. |
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| SilviaDrifter |
hey ok sorry for not getting back to u sooner..
when do u wanan meet up and where? |
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| rhd rx7 |
| thanx guys for helping me understand.there is so many little trix to these cars so im trying to learn.you guys are a great help thanx |
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| ae86dorikin |
| I also have a second one, for s5, doesnt look as pretty but still works fine. |
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| Wookey |
| if you still have one, i'll probably pick one up after christmas.:thumbup: |
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| SilviaDrifter |
| dam u chad u slut bag haha |
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| ae86dorikin |
bump
still for sale.....both of them |
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