MAzda authorised modification number N3Z2-18881-T
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MAzda authorised modification number N3Z2-18881-T
On my Mazda RX-8 2004 GT an authorised modification number that is N3Z2-18881-T i went to change the clutch and the dealer told me that this authorised modification mean that the car as a 911 porch suspention
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Wow. So much to unpack there...
Let's visit this particular dealer's fantasyland and make believe for a minute that was actually the case... Porch suspensions are usually concrete, wood, stone, things one finds at Home Depot, not a stealership. You might find a spring if there is a swing involved.
PORSCHE suspensions are designed around completely different mounting points, a larger, heavier vehicle, with a fairly significant rear weight bias (assuming we're talking about any modern 911, older 911s would be smaller and lighter, but then you're talking about antirely different mess of problems). Putting such a suspension under an RX-8 would result in significant surgery to the unibody structure, wheels sticking out inches from the body work, which would either involve some pretty massive and obvious fender flares or be illegal in many jurisdictions. Assuming those hurdles were cleared, the *** end would be so stiff, you'd be almost unable to turn at any speed for the massive understeer.
Maybe he's talking about a Cayman/Boxster? Smaller, lighter, more even weight distribution... Closer from 10k'. Let's assume completely identical weight and weight distrribution. Unfortunately, that would actually be a further step in the WRONG direction. They have MacPherson struts on all four corners. That means the mounting point problem is much worse, but also, the end result would be much worse. RX-8s have double wishbone front suspension, and five link rear. Better in just about every way. The RX-8's suspension is about as good a method and geometry as you can get in a sports car. Only thing you can do to make it any better is just minor tweaks in springs rates and such for specific use cases.
Peering around the other corner, Z3Z2-18881-H is an 04 ECM. Someone with more part number knowledge may be able to discern if the T means anything (later revision more likely than anything). The way Mazda's part number system works is that there's no way that's suspension related regardless.
The possible nugget of reality this massive delusion may have originated from is that back in the early-80s when Mazda was designing the FC RX-7s, Mazda reportedly benchmarked the contemporary 911, and I have heard cribbed some of their suspension geometry. I have never gone so far as attempt to verify this in any way, but I kind of doubt it, as I recall the FC RX-7 had a 5-link with a faux oversteer-like toe in under compression and the 911 was still using a (heavily modified) trailing arm setup at that time. I could be wrong about either or both there. Deep memory storage/recall there. All that said, the RX-8 and FC RX-7 have approximately nothing in common aside from an evolutionary lineage.
That dealer, like most, is garbage and should be avoided.
Let's visit this particular dealer's fantasyland and make believe for a minute that was actually the case... Porch suspensions are usually concrete, wood, stone, things one finds at Home Depot, not a stealership. You might find a spring if there is a swing involved.
PORSCHE suspensions are designed around completely different mounting points, a larger, heavier vehicle, with a fairly significant rear weight bias (assuming we're talking about any modern 911, older 911s would be smaller and lighter, but then you're talking about antirely different mess of problems). Putting such a suspension under an RX-8 would result in significant surgery to the unibody structure, wheels sticking out inches from the body work, which would either involve some pretty massive and obvious fender flares or be illegal in many jurisdictions. Assuming those hurdles were cleared, the *** end would be so stiff, you'd be almost unable to turn at any speed for the massive understeer.
Maybe he's talking about a Cayman/Boxster? Smaller, lighter, more even weight distribution... Closer from 10k'. Let's assume completely identical weight and weight distrribution. Unfortunately, that would actually be a further step in the WRONG direction. They have MacPherson struts on all four corners. That means the mounting point problem is much worse, but also, the end result would be much worse. RX-8s have double wishbone front suspension, and five link rear. Better in just about every way. The RX-8's suspension is about as good a method and geometry as you can get in a sports car. Only thing you can do to make it any better is just minor tweaks in springs rates and such for specific use cases.
Peering around the other corner, Z3Z2-18881-H is an 04 ECM. Someone with more part number knowledge may be able to discern if the T means anything (later revision more likely than anything). The way Mazda's part number system works is that there's no way that's suspension related regardless.
The possible nugget of reality this massive delusion may have originated from is that back in the early-80s when Mazda was designing the FC RX-7s, Mazda reportedly benchmarked the contemporary 911, and I have heard cribbed some of their suspension geometry. I have never gone so far as attempt to verify this in any way, but I kind of doubt it, as I recall the FC RX-7 had a 5-link with a faux oversteer-like toe in under compression and the 911 was still using a (heavily modified) trailing arm setup at that time. I could be wrong about either or both there. Deep memory storage/recall there. All that said, the RX-8 and FC RX-7 have approximately nothing in common aside from an evolutionary lineage.
That dealer, like most, is garbage and should be avoided.
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Feb 14, 2004 07:03 PM