RX-8 Track test , report and pics .
11-19-2002, 04:59 PM
#26
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but then your HC's go through the roof (won't pass any emissions tests on the limiter, by a LOOONG shot...)
these days, don't they simply use a combination of the two, under computer control to keep the revs from going too high??
these days, don't they simply use a combination of the two, under computer control to keep the revs from going too high??
11-19-2002, 05:09 PM
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All rev limiters are built into the ECU software these days. I get the impression that ignition cut is nicer on the engine than fuel cut too, that's why the rev limiter is ignition but over boosting which is much more dangerous has a fuel cut because it may ignite without a spark.
BTW, I've heard of heaps of stories of rotaries over-revving and living to tell the tale it's one of their strong points. Years ago there was a poll of people on the rx-7 list who had grabbed the wrong gear and not one blew an engine. Try that on the E36 M3 list! I've seen 9500rpm on my motor before without any drama.
-pete
BTW, I've heard of heaps of stories of rotaries over-revving and living to tell the tale it's one of their strong points. Years ago there was a poll of people on the rx-7 list who had grabbed the wrong gear and not one blew an engine. Try that on the E36 M3 list! I've seen 9500rpm on my motor before without any drama.
-pete
11-19-2002, 06:11 PM
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Originally posted by wakeech
but then your HC's go through the roof (won't pass any emissions tests on the limiter, by a LOOONG shot...)
these days, don't they simply use a combination of the two, under computer control to keep the revs from going too high??
but then your HC's go through the roof (won't pass any emissions tests on the limiter, by a LOOONG shot...)
these days, don't they simply use a combination of the two, under computer control to keep the revs from going too high??
12-04-2002, 02:28 PM
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Originally posted by rpm_pwr
All rev limiters are built into the ECU software these days. I get the impression that ignition cut is nicer on the engine than fuel cut too, that's why the rev limiter is ignition but over boosting which is much more dangerous has a fuel cut because it may ignite without a spark.
BTW, I've heard of heaps of stories of rotaries over-revving and living to tell the tale it's one of their strong points. Years ago there was a poll of people on the rx-7 list who had grabbed the wrong gear and not one blew an engine. Try that on the E36 M3 list! I've seen 9500rpm on my motor before without any drama.
-pete
All rev limiters are built into the ECU software these days. I get the impression that ignition cut is nicer on the engine than fuel cut too, that's why the rev limiter is ignition but over boosting which is much more dangerous has a fuel cut because it may ignite without a spark.
BTW, I've heard of heaps of stories of rotaries over-revving and living to tell the tale it's one of their strong points. Years ago there was a poll of people on the rx-7 list who had grabbed the wrong gear and not one blew an engine. Try that on the E36 M3 list! I've seen 9500rpm on my motor before without any drama.
-pete
Also, they said 0-62 is 6.3...I imagine 0-60 will be more like 6.0-6.1 seconds
12-05-2002, 02:39 PM
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If the posted redline line is 9000 revs, I hope the buzzer comes on at 9250.
A modern rev limiter would probably cut the fuel to one rotor @ 9500, and if that didn't do the trick to bring the revs down, the other rotor could drop out @ 9750, and finally the spark cut out at 10000.
If you dumped that air/fuel mix into a hot catalytic converter, not a good thing.
A modern rev limiter would probably cut the fuel to one rotor @ 9500, and if that didn't do the trick to bring the revs down, the other rotor could drop out @ 9750, and finally the spark cut out at 10000.
If you dumped that air/fuel mix into a hot catalytic converter, not a good thing.
Last edited by MikeW; 12-16-2002 at 10:39 PM.
12-05-2002, 07:17 PM
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Originally posted by MikeW
A modern rev limiter would probably cut the fuel to one rotor @ 9250, and if that didn't do the trick to bring the revs down, the other rotor could drop out @ 9500.
If you dumped that air/fuel mix into a hot catalytic converter, not a good thing.
A modern rev limiter would probably cut the fuel to one rotor @ 9250, and if that didn't do the trick to bring the revs down, the other rotor could drop out @ 9500.
If you dumped that air/fuel mix into a hot catalytic converter, not a good thing.
12-06-2002, 11:05 AM
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Fuel >>CUT<<
The key to "Fuel Cut" is the CUT part... there is no fuel being introduced, so there is no air and fuel to mix, therefore nothing to detonate.
You'd run into problems with Fuel Reduction, but not Fuel Cut.
You'd run into problems with Fuel Reduction, but not Fuel Cut.
12-16-2002, 11:16 AM
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What's that bull about the RX-7 being about straightline performance and nothing else at the end of the article??? Did anyone else notice that...what's wrong with that statement?
12-16-2002, 10:05 PM
#35
Originally posted by KiyoKix
What's that bull about the RX-7 being about straightline performance and nothing else at the end of the article??? Did anyone else notice that...what's wrong with that statement?
What's that bull about the RX-7 being about straightline performance and nothing else at the end of the article??? Did anyone else notice that...what's wrong with that statement?
I didn't even need to read that article to know that those editors were odviously smoking something
It really ticks me off when people don't know sh*t about the history of the cars they are testing.
12-17-2002, 11:21 AM
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History
Agreed, There are people within mazda that are making a very hard push to remind all the employees about the history of Mazda, the rotary and racing.
This is shown in their commercial on SpeedVision/Channel (whatever) .. http://www.rotaryscene.com/movies/MazdaAd.mpeg
Their next target is educating the media on what Mazda is all about, and how they found themselves again.
This is shown in their commercial on SpeedVision/Channel (whatever) .. http://www.rotaryscene.com/movies/MazdaAd.mpeg
Their next target is educating the media on what Mazda is all about, and how they found themselves again.
12-17-2002, 03:08 PM
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Originally posted by Grimace
Fuel economy, combined driving: 28-30 MPG. Methinks this is a little overly optimistic. :D One can hope though. I wonder where they got this number from?
It does say at the bottom of the data box is small print "All figures manufacturer's claims" so either Mazda has come out with some crazy breakthrough or its a misprint.
Fuel economy, combined driving: 28-30 MPG. Methinks this is a little overly optimistic. :D One can hope though. I wonder where they got this number from?
It does say at the bottom of the data box is small print "All figures manufacturer's claims" so either Mazda has come out with some crazy breakthrough or its a misprint.The mess us up by giving us the english system of measurement, then they muck it all up again....
1 British gallon = 1.20095 US Gallons
