Injured_Again
Thread starter
Originally Posted By: nleksan
Curious as to how it affects VANOS operation and life in the M52B28...
Been a while since I've thought a lot about the motor. It's a single stage VANOS and operates on just the intake valves (I believe). Its operation was said to generate that "on cam" feeling at around 3500 RPMs and that rush is still there.
Not real long ago, a compression test on this engine showed all cylinders to still be above "as-new" specifications. I'm sure that's due to a lifetime of Mobil 1 oil, and despite that this car has spent several thousand miles lapping on road courses. It's one of the reasons why I'm reluctant to put oil additives in where a service history is well known and there is no apparent need, but the amount of improvement I saw in the Miata has gotten me to at least try it in these two other cars.
Curious as to how it affects VANOS operation and life in the M52B28...
Been a while since I've thought a lot about the motor. It's a single stage VANOS and operates on just the intake valves (I believe). Its operation was said to generate that "on cam" feeling at around 3500 RPMs and that rush is still there.
Not real long ago, a compression test on this engine showed all cylinders to still be above "as-new" specifications. I'm sure that's due to a lifetime of Mobil 1 oil, and despite that this car has spent several thousand miles lapping on road courses. It's one of the reasons why I'm reluctant to put oil additives in where a service history is well known and there is no apparent need, but the amount of improvement I saw in the Miata has gotten me to at least try it in these two other cars.