Low trap speeds were one more hint in direction of the evident lack of electricity output.
Soon soon after, several debates on online fanatic discussion boards and dialogue boards turned into heated arguments as to what was leading to this kind of poor “straight line functionality.” Numerous former Miata proprietors remembered a prior “snafu” in Mazda’s background, when the manufacturer admittedly overstated the horsepower figures of their redesigned Mazda Miata.
After a number of months, MNAO arrived forward and explained that they had misrepresented the Renesis’ electrical power output. The revised figure was now 238hp @ eight,500rpm however, in accordance to MNAO, this revision did not change the beforehand reached track performance results.
Speculations about the good reasons powering the sudden lack of electrical power output were several. Nonetheless, there are at present two educational institutions of imagined:
- The first one particular supports the thought that the RX-8′s motor management unit (ECU), in conjunction with the a lot of “nanny” gadgets -these kinds of as ABS & TCS- do not allow to get exact readings from a chassis dynamometer. To simplify, when the auto is operate on a chassis dyno, only the driven wheels are turning. The RX-8′s ECU would detect an abnormal driving scenario and retard timing and use other safety measures to preserve either the “driver” or the “engine” -or both- from hurt (go through: skidding predicament, or a automobile heading out of the road.)
- The second one particular believes that MNAO was forced to re-engineer the software package that runs the motor management even prior to the very first batch of RX-8′s reached U.S. shores, due to approaching Federal emissions rules. I have read of 1 in particular, which calls for catalytic converter lifespan of ~one hundred,000 miles. The enemy range a single of catalytic converters on any automobile is heat (and heat is the number one attribute of rotary engine’s exhaust gases.)
MNAO supplied two options to these who had pre-ordered an RX-8, or had obtained no late than September 2003:
- They would acquire back the automobile, no issues asked.
- They would offer you Free of charge Scheduled Routine maintenance for the life of the guarantee, in addition a five hundred dollar “present card” to these who opted to keep the auto.
I was between these who opted to hold their RX-eight. After all, the driving knowledge had not modified given that check driving the car prior to getting it. Since August 2003 I have clocked nicely more than 20,000 miles -as of 1/18/2005- and I have but one particular ounce of regret about my selection. If you’d like to examine a lot more about owners’ opinions, go to this thread @ RX8Club.com
There have been a number of ECU “updates” unveiled in the course of the prior two a long time. To the greatest of my expertise, all early samples of ’04 RX-8s, arrived from port with degree “J” of motor management software. Considering that then, we have escalated all the way by way of the alphabet to “M” -which was released on a TSB marketing campaign by Mazda North America (MSP04) in purchase to have ALL vehicles taken in for Services @ Authorized Sellers flashed to “M” calibration.
