Hi all,
Can anyone explain the differences between an over-the-counter Mazda crate motor for an RX8 and the PFM spec motor? Are there any internal differences below the intake?
Follow on question, can the PFM spec motor run safely on pump gas if it is 93 octane no-ethanol? Sunoco 98 GTX has to be ordered in advance if you're not going to a track with fuel and it is very pricey when buying in 5 gallon pails (more than $14/gallon). Can get it for $9.50 at certain track pumps which is more reasonable but I could buy 93 no-ethanol at a local pump for about $4.50.
I'm not racing, I'm just playing at track test days, so I'm only concerned with not hurting the motor and not some rule book.
Thanks,
Mike
Can anyone explain the differences between an over-the-counter Mazda crate motor for an RX8 and the PFM spec motor? Are there any internal differences below the intake?
Follow on question, can the PFM spec motor run safely on pump gas if it is 93 octane no-ethanol? Sunoco 98 GTX has to be ordered in advance if you're not going to a track with fuel and it is very pricey when buying in 5 gallon pails (more than $14/gallon). Can get it for $9.50 at certain track pumps which is more reasonable but I could buy 93 no-ethanol at a local pump for about $4.50.
I'm not racing, I'm just playing at track test days, so I'm only concerned with not hurting the motor and not some rule book.
Thanks,
Mike
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