RX-8 Tuning
#1
RX-8 Tuning
Found some interesting information on an American site about tuning the RX-8:
1. Intake – enlarging the oval inlet to the factory air box - +2 HP (this modification eliminates the VFAD intake duct.) Developmental work is still being undertaken.
2. Headers – approximately 4 HP peak power gain.
3. Mufflers – muffler & connecting pipe - 2-3 HP.
4. Removing the muffler from the car (engine) – about 4 HP.
5. Remove catalytic converter and resonator from the engine completely, and replacing with "cat" replacement tube – max benefit 8 HP – regardless of what muffler is used (or even no muffler).
https://www.racingbeat.com/ConRX8.htm
I've run the car without a muffler, and it's pretty damn loud.
1. Intake – enlarging the oval inlet to the factory air box - +2 HP (this modification eliminates the VFAD intake duct.) Developmental work is still being undertaken.
2. Headers – approximately 4 HP peak power gain.
3. Mufflers – muffler & connecting pipe - 2-3 HP.
4. Removing the muffler from the car (engine) – about 4 HP.
5. Remove catalytic converter and resonator from the engine completely, and replacing with "cat" replacement tube – max benefit 8 HP – regardless of what muffler is used (or even no muffler).
https://www.racingbeat.com/ConRX8.htm
I've run the car without a muffler, and it's pretty damn loud.
#3
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I love this sort of info. The fact that there is little to be gained by these sort of tweaks shows to me that Mazda have thought hard about optimising performance.
#7
I wouldn't say the pulleys alone would give that... maybe pulleys and flywheel together may give 10 hp but what they give is faster and better throttle response from less inertia
#8
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Originally posted by neit_jnf
I wouldn't say the pulleys alone would give that... maybe pulleys and flywheel together may give 10 hp but what they give is faster and better throttle response from less inertia
I wouldn't say the pulleys alone would give that... maybe pulleys and flywheel together may give 10 hp but what they give is faster and better throttle response from less inertia
#9
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most companies are claiming ridiculous numbers
e.g air intake claims to be 8-12hp
exaust/midpipe up to 22hp gain
pulleys 8-12hp gain
(all have dyno's to 'proove')
hard to believe some of these extraordinary claims even with the dyno sheets...
e.g air intake claims to be 8-12hp
exaust/midpipe up to 22hp gain
pulleys 8-12hp gain
(all have dyno's to 'proove')
hard to believe some of these extraordinary claims even with the dyno sheets...
#10
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On most cars the figures you mention are not ridiculous....The 8 is finely tuned already though....
Of the three, IMO the pulleys are the only one that would come close to liberating that amount of hp.
Gomez.
Of the three, IMO the pulleys are the only one that would come close to liberating that amount of hp.
Gomez.
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