Renesis 2
10-06-2007, 03:16 PM
#351
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A separate oil reservoir would help people understand and make it a little easier for most people to check the oil. Not a hassle for enthusiasts, but surely Mazda would rather sell more rather than fewer of these.
10-06-2007, 03:50 PM
#352
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I also noticed the illustrated motor looks like 4 port intake. I haven't figured out what's going on there.
Last edited by CERAMICSEAL; 10-06-2007 at 03:51 PM. Reason: Spelling
10-06-2007, 04:54 PM
#356
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but i have an idea in this direction too and will elaborate on it in a thread when i have the time in a day or 2.
10-07-2007, 04:32 PM
#361
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Let's see:
135i - 3440
370z - 3400 at least, even with the shorter wheelbase
STI/Evo - 3400ish
Camaro - 3700
Challenger 3650
Mustang 3550 at least
We have to remember the RX cars are not straight line cars. Granted the competitors will have more HP and torque, that is a lot of weight to push around a track; although the 135i looks great on a road course! I am not conviced we will see another RX8. I think the 8 will be retired and we will see a two door coupe weighing in at 2700-2800 pounds. And, to some of the comments listed on another thread, it appears the design of this new engine will be more friendly for power adders. I would place my money on a 2700 pound, 350 HP RX car over a tuned Z, 135i, Maro, or Stang on the track. I would argue that the GTR's should not think they would own a RX car on the track with those numbers...
135i - 3440
370z - 3400 at least, even with the shorter wheelbase
STI/Evo - 3400ish
Camaro - 3700
Challenger 3650
Mustang 3550 at least
We have to remember the RX cars are not straight line cars. Granted the competitors will have more HP and torque, that is a lot of weight to push around a track; although the 135i looks great on a road course! I am not conviced we will see another RX8. I think the 8 will be retired and we will see a two door coupe weighing in at 2700-2800 pounds. And, to some of the comments listed on another thread, it appears the design of this new engine will be more friendly for power adders. I would place my money on a 2700 pound, 350 HP RX car over a tuned Z, 135i, Maro, or Stang on the track. I would argue that the GTR's should not think they would own a RX car on the track with those numbers...
Since there are already so many other cars with high hp but overweight, it is very smart of Mazda to go for the lightweight, tossable niche since they will be the only one. Plus, at 700-1000lbs less than the competition, they won't be giving up much if at all in straight line speed.
10-07-2007, 05:22 PM
#362
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zoom44, you think they'll keep using the 13B-MSP? It isn't a bad engine at all, just that the RX-8 is too heavy for it. With the right setup and perhaps add DI to it, it'll have great mileage and horsepower.
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Last edited by Renesis_8; 09-11-2011 at 01:24 PM.
10-07-2007, 07:51 PM
#363
longer stroke in a rotary= more heat to deal with?
Would sound a little different also!
Heck with those numbers expected just fi the renasis and you have that--even more--- and it can be made reliable. whats the big deal? It is good to know that the rotary is not dying--thats good.
and the DI issues fi'ing or modding will be much harder as per RG has already said.
we will have to wait and see
olddragger
Would sound a little different also!
Heck with those numbers expected just fi the renasis and you have that--even more--- and it can be made reliable. whats the big deal? It is good to know that the rotary is not dying--thats good.
and the DI issues fi'ing or modding will be much harder as per RG has already said.
we will have to wait and see
olddragger
10-08-2007, 05:53 PM
#365
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The location that they have chosen for direct injection could still be used with standard fuel pressures although hitehr is always better. They still have 2 conventionally located injectors as well so I imagine we aren't really going to see it go up much if any.
10-08-2007, 07:48 PM
#367
longer stroke in a rotary= more heat to deal with?
Would sound a little different also!
Heck with those numbers expected just fi the renasis and you have that--even more--- and it can be made reliable. whats the big deal? It is good to know that the rotary is not dying--thats good.
and the DI issues fi'ing or modding will be much harder as per RG has already said.
we will have to wait and see
olddragger
Would sound a little different also!
Heck with those numbers expected just fi the renasis and you have that--even more--- and it can be made reliable. whats the big deal? It is good to know that the rotary is not dying--thats good.
and the DI issues fi'ing or modding will be much harder as per RG has already said.
we will have to wait and see
olddragger
If 8psi on an otherwise stock 220bhp renesis makes ~280 to the wheels, just imagine what 8psi in a base 280-300bhp 16x will yield. Now toss that in a ~26-700lb car.
10-08-2007, 08:14 PM
#369
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10-08-2007, 08:30 PM
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Lexus IS type of injection?
Maybe DI doesnt work well at high rpms in a rotary engine.
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Last edited by Renesis_8; 09-11-2011 at 01:26 PM.
10-09-2007, 06:35 AM
#372
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Or maybe the DI injectors are very small to promote fuel atomization at low power levels, and cannot keep up with the fuel demand at higher power levels.
Maybe, at full throttle, the port injectors are used to "dump" a lot of fuel in the chamber, with the DI injectors used to "correct" lean spots.
Just a thought.
Maybe, at full throttle, the port injectors are used to "dump" a lot of fuel in the chamber, with the DI injectors used to "correct" lean spots.
Just a thought.
