04-01-2024, 07:12 AM | #155 | |
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04-01-2024, 08:28 AM | #156 | |
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1) the b58 is a great engine (responsive, quick to spool up) and with some suspension mods that car must be very quick - my Z4 certainly was. I bet it would give my manual M3 a run for its money at least below 80 mph. I would imagine the brakes are also a limitation on the M340 without an upgrade - and the cooling, etc. if tracking. 2) M3 manual - car is on rails. There is obviously a suboptimal gear ratio compared to the ZF8 auto, but it’s such an enjoyable car. Not all about going faster on public roads - more time to enjoy each gear. 3) M3 comp x - I was getting 3.0s to 60 and car was unbelievably fast. |
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04-02-2024, 01:09 PM | #157 |
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Same here, and it's only $100 more...smh
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04-02-2024, 06:56 PM | #159 | |
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04-02-2024, 08:02 PM | #160 | |
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B58 to these high hp and torque levels and that resulted in trumping the S58 in the comp x (if I understood correctly?). In my Z4 experience the B58 is more responsive than the 6MT M3 S58 especially at lower rpm’s, but then fades or hits a linear power limit as the rpm’s climb while the S58 pulls much harder. The higher boost power and torque comp S58 tune is much more powerful than the B58 just about everywhere in the range. |
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04-03-2024, 08:27 AM | #161 | |
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B58 has significantly higher compression than S58, which means it makes much more power as an NA motor before the turbo spools. Combine that with a single twin-scroll turbo that spools quicker than the twins on the S58 and you get a dead-flat torque curve that starts nice and low, which is fantastic for everyday driving. In exchange, you give up power on the top end and ability to scale to crazy-high boost levels. |
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