Can I use Prostrength octane booster for RX8?
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Joined: Mar 2003
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From: Melbourne, Australia
Can I use Prostrength octane booster for RX8?
This RX8 is my first rotary...
can I use octane booster?
The reason that I ask is that the menu from the welcome pack from Mazda stated that "due to the uniqueness of the rotary, fuel additives should be used"
Octane booster or injector cleaner are they talking about?
can I use octane booster?
The reason that I ask is that the menu from the welcome pack from Mazda stated that "due to the uniqueness of the rotary, fuel additives should be used"
Octane booster or injector cleaner are they talking about?
Last edited by takahashi; Dec 4, 2003 at 08:03 PM.
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From: Sydney, Australia
This is taken from a previous reply I did a while back.....................
If you can find a copy, The WANKEL engine by JP NORBYE is a great read.
It has technical date from Curtis Wright doing octane level testing on there RC260 engine.
Rotary Combustion 2 (rotor) 60 (cubic inches)
They used a variation of RON from 85 - 105. Good news was that the rotary ran well for all grades of fuel tested, They stated that the lower RON fuels required some re-jetting of the carby (from early 70's) but that was it.
A piston would have pinged & exploded under the same conditions as compression ratios are critical for the RON used.
Bad news for us was......... less that 3hp difference in power from the lower to upper scale of fuel.
Thus, 91 RON unleaded should (according to this book) produce practically the same power from your RX-8 as the 98 RON Optimax fuel does.
Main difference can be found in your hip pocket I guess. Thus don't expect anything major from the adittives expect a greatly reduced bank balance.
Turbo rotaries are another story due to the increased compression of the forced induction.....
If you can find a copy, The WANKEL engine by JP NORBYE is a great read.
It has technical date from Curtis Wright doing octane level testing on there RC260 engine.
Rotary Combustion 2 (rotor) 60 (cubic inches)
They used a variation of RON from 85 - 105. Good news was that the rotary ran well for all grades of fuel tested, They stated that the lower RON fuels required some re-jetting of the carby (from early 70's) but that was it.
A piston would have pinged & exploded under the same conditions as compression ratios are critical for the RON used.
Bad news for us was......... less that 3hp difference in power from the lower to upper scale of fuel.
Thus, 91 RON unleaded should (according to this book) produce practically the same power from your RX-8 as the 98 RON Optimax fuel does.
Main difference can be found in your hip pocket I guess. Thus don't expect anything major from the adittives expect a greatly reduced bank balance.
Turbo rotaries are another story due to the increased compression of the forced induction.....
[rapidus octus]
Joined: Aug 2003
Posts: 1,028
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From: Sydney, Australia
I hope takahashi isn't as as fond of performance enhancing chemicals when he xyxles 
I've just realised what it was about the name "takahashi" that was niggling at my memory ... I'd remembered the name incorrectly, but it was "Takeshi Kovacs" The Envoy and main character out of Richard Morgan's book - Altered Carbon. I've only just realised because I've started reading the second novel Broken Angels.
I've just realised what it was about the name "takahashi" that was niggling at my memory ... I'd remembered the name incorrectly, but it was "Takeshi Kovacs" The Envoy and main character out of Richard Morgan's book - Altered Carbon. I've only just realised because I've started reading the second novel Broken Angels.
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