supercharger on 2000xk8
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motorcarman (08-21-2018)
#3
Many many have asked the same question. As stated, it'd be better to just buy an R model. For 1 thing the na and supercharged engines have different compression ratios.
who knows how ECM computer tuning parameters would change.
sorry for the bad news. I agree it'd be great to find a way to get another 100hp.
John
who knows how ECM computer tuning parameters would change.
sorry for the bad news. I agree it'd be great to find a way to get another 100hp.
John
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magnum454 (08-23-2018)
#4
#5
In addition to the different compression ratios XK8 (w/ 4.0) is 10.75:1 vs the XKR being 9.0:1, the XK8 also features a ZF5HP24 gearbox, frankly this is a weak and problematic gearbox. Due to the increased torque from the supercharger they had to swap out to a Mercedes Benz W5A580 5G-tronic. Your transmission simply could not handle the torque, the ZF box had a lot of trouble with the A-Clutch, which was caused by pressure fluctuation due to a faulty design in the pressure regulator valve. You're best off ditching the XK8 and getting a R model. There are a few downsides, but in time you WILL need to dump some money into the trans if your have the 5HP box.
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magnum454 (08-23-2018)
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