RX3+5

http://www.elisetalk.com/forums/show...&threadid=6665

The Elise is rated at 190HP at the crank and gives out 160ish at the wheels.

Our RX8's are rated at 238HP and give us 170ish at the wheels.

I still feel cheated...

Vince

dmp

My old Probe GT was rated at 164hp at the flywheel; with intake and catback it dyno'd at 160 at the front wheels.

Point is, until you dyno a Lotus and an RX8 on the same dyno, under the same conditions, the number is curious, but doesn't prove anything.

mysql101

You can't judge the rx-8 based on a traditional dyno. Too many computer things that sense front wheels not moving, air flow not high enough, etc and triggers limp mode.

Luftwaffle

Yeah, and next you'll say that the sun was in your eyes. :p

I like my car, I don't care about the dyno. :D

On an unrelated note, shouldn't this be in the General Automotive section?

brillo

you also have to remember, there are fewer drivetrain pieces in a midengine RWD/FWD setup, therefore, less loss since you really don't have a driveshaft.

RX3+5

Hasn't someone with a base RX8 dynoed with about the same results?

Vince

RX-Hachi

I've seen a wide variance in dyno results for the RX-8. The lows are in the 170-ish range, the highs in the 190-ish range. So either the RENESIS's power varies quite a bit from one engine/car to another, or different dynos lead to different results, or as Mazda maintains, the RENESIS can't be properly dynoed with most current dyno machines. Probably a combination of all the above.

RX3+5

Possible but I would like to know the real truth someday. It's been a while now and nobody has come up with a real provable answer and it really is time I think.

Vince

StretchSJE

Does it really matter? A dyno number doesn't suddenly change anything. The car has always been impressive, even without this engine. It doesn't take a dyno to see that. But with the 2000 Celica GT-S having always put out around 160fwhp, these numbers are hardly surprising.

bgreene

Shouldn't there be slightly higher losses in a FWD, since the mechanism is more complex, and what parts there are have more moving parts, u-joints, bearings, etc.?

Since the driveshaft itself just transfers torque, the only loss would be on the first lurch, as strain energy builds up in the shaft. In and of itself, a shaft shouldn't add any friction to the system, except where it's attached by a u-joint, or supported by a bearing.

ScottishRX

Have any of you guys ever driven an elise, or any other Lotus? Colin Chapman had this fantastic idea of minimising the weight of all his cars. This has been carried through to the Elise and it is a wonder to drive. Colin Chapman is dead.......Long live Lotus.

Dookie_Rx-8

anyone know how quick is the elise?

stever

Here is a little article about the Elise. Zero to 60 in 4.7 seconds, quarter mile in 13.4.

http://www.roadandtrack.com/article....ber=1&preview=

Icemastr

You are comparing the best number of an Elise on a dynojet most likely to the worst number of an RX-8 on a mustang dyno. Most people are dynoeing over 180 or even 190 on dyno jets with the RX-8. Cheated? I think the Lotus Elise owners should feel cheated too as Lotus has rated the engine 12HP higher than the Toyota Celica it comes from, yet is only showing a 2-3HP increase at best over stock toyota corolla dynos. Saw this in a comparison of both on the same day back to back same dyno.

Ike

There is less drvietrain loss in a FWD car than a RWD typically.