stinksause

iTrader: (5)

I doubt they put it in ... I am just saying if you wanted to do it properly ...

NastyCherryShinka

iTrader: (4)

It sure is a bit too colorful. Cool idea I guess being that it is lighter and all. Wonder how it performs.

bse50

Moreover... anybody took a look at the intake's design and maf placement?

Spin9k

What strikes me is how nicely the RENESIS sits in the chassis (I guess it should as they are based on the same one). Still behind the fnt axle line, plenty of room in the engine bay, etc. Why Mazda never made an official RENESIS Miata is mind boggling. I know they sell alot as is, but the extra production for a RENE version would have been a slam dunk IMHO.

Who knows, maybe it'll go in the next lighter MX-5 - 2200LBs w/237HP sounds about right to me.

Highway8

iTrader: (11)

I dont believe a 93 miata and a 04+ RX8 are built on the same chassis.

Why it was never done, who knows but it would have been nice.

It wont happen with the renesis, maybe the next rotary if there is one, but the current renesis is dead. If mazda can make the next renesis last longer before having compression issues, improve power and MPG/emissions, it would be a good move for mazda to put a Rotary in several different platforms. When you do that, you can charge more money for the higher output motor which increases profits on the HP option and increases sales on the regular option. The other thing it does is increase production numbers which in turn cuts down on R&D price per unit and increase a companies bottem line. What mazda does not want to do is put a problem child Renesis into more cars which will only hurt their profits.

I strongly believe Mazda is and will continue to work on a future rotary motor. Biggest reason I say that is because Mazda stuck behind the Renesis with the extended warrenty. That move hurt profits but kept brand and more specificaly Rotary Loyality up. If mazda was going to ditch the Rotary for ever they would have said, you bought the car and now your stuck with it.

wahkupup

iTrader: (3)

what is the theory behind 30 hp gain from cutting "power" from the alt. You are still wasting the same amount of energy driving the alt pulley. The only way to "free" up H/P is to remove the alt. or belt completely. Even then you are not going to see huge gains.

lastphaseofthis

wrong.

If you had an alternator in your hands, it's quite easy to turn, and the mass doesn't put much load on the system. how ever if you connect the power out to the body of the alternator, then try turning it, it's almost like it has brakes, and takes alot more effort to turn. the hp robbing comes from the alternator pump out 50 or more amps, not the weight of the moving parts.

Highway8

iTrader: (11)

Correct but it is still nowhere near 30HP. Try this out. Install a dead battery in your car (so the alternator tries to charge it), jump start the car so it starts. Rev the motor up to 7K RPM. Hold the throttle still and disconnect the power to the alternator ( I believe there is a fuse). If that alternator is really taking 30 HP, or even 5 HP the motor will immediately jump to redline. Guess what, it will bairly move. If you do the same thing with a good battery and instead turn on all the vehicle equipment (headlights, hit the brakes, windshield washers, stereo, defroster, hvac fans and A/C (turns on cooling fans too and go ahead and crank the steering wheel) at 1 time which will increase the load on the alternator to about the max under normal operation, you will get about a 2-300 RPM drop. Worth maybe 1-2 HP. The alternator is most effeciant at high RPMs, least at idle.

stinksause

iTrader: (5)

i feel like mazda did not make a renesis miata in fear of cannibalization of rx8 sales