Tuning an RX8?

[dthebuk]

It\'s not much worse than stock according to California Style.  Tony\'s got one on his RX8, and with his HKS ECU he\'s got 32 mpg out of it, that\'s unheard of for a stock RX8!

damn! I stand corrected.

I was always under the impression that SC\'s were rubbish with fuel.

Actually come to think about it, they\'re a great idea, lol

would be interesting to see how the turbo\'s fair also as rotaries look to be making a comeback in the hybrid world

[B.Martin]

Was driving through Limassol today and a black RX8 pulled out behind me, must have had a full system and decat exhaust because it was loud as f***, best description of sound would be to liken it to a motorbike. So much so that my mate I was with (without seeing it) commented that he hated loud motorbikes! I responded "it\'s an RX8 mate, sounds awesome!"

Slightly off topic, but great the share non the less!

[m1tch]

damn! I stand corrected.

I was always under the impression that SC\'s were rubbish with fuel.

Actually come to think about it, they\'re a great idea, lol

would be interesting to see how the turbo\'s fair also as rotaries look to be making a comeback in the hybrid world

I have found that if you get a slightly more powerful car or indeed more power at lower revs it will increase fuel economy as you don\'t have to rev it as much to accelerate. My daily drive is a Pug 306 Dturbo - turbocharged 1.9 litre, it does better mpg than the straight non turbo 1.9 as the powerband is further down the rev range, so a supercharger will give more torque and power low down, so should give a better economy than if it was just NA, plus the tuning can be done to get the fueling spot on for that engine, rather than a generic map on the OEM ECU.

[dthebuk]

Yea well it\'s all about driving the car where it produces maximum torque in the rev range as you\'ll need the least amount of fuel to create said torque. What I assumed to be the problem with an sc is that it\'s more resistive than a turbo charger which would inhibit fuel efficiency. It should give you better efficiency at most revs but at the sweet spot the turbo should come out on top. Realistically though it\'s going to be an effort to keep the revs in the right place so maybe an sc is good.

[Will66]

The supercharger is producing more torque per rev than stock throughout the rev range.  I think the economy comes from getting the same performance for less rpm than stock so you\'re in a higher gear.  However in Tony\'s (Tango Tony, T200CAD or Exiled Viking, whichever he is on here, I can\'t remember) I reckon the economy is improved by his ECU being precise with the fuelling.  The normal pettit conversion uses a re-mapped stock ECU.