Spec Boxster Build

[Brad Roberts]

You'll be disappointed **somebody sucked you into that deep sump. The 2.5's have nowhere near the issues the 3.2/3.4/3.6/3.8 M96 and M97's. The 2.5 spins 1k less RPM and doesn't fill the heads with oil as bad as the engines I mentioned above. CA Speedway (with stock pan and X51kit) drops from 60lbs of oil pressure in the banking to 20lbs....... for 50-60ft at 130+mph. Next track that we have oil pressure *drop? Chuckwalla. Guess which corner? The banked corner. For 30-40ft. 60 down to 30. Who cares. LOL The engine will run for several minutes with no oil pressure.

[thstone]

Originally Posted by Brad Roberts

You'll be disappointed **somebody sucked you into that deep sump. The 2.5's have nowhere near the issues the 3.2/3.4/3.6/3.8 M96 and M97's. The 2.5 spins 1k less RPM and doesn't fill the heads with oil as bad as the engines I mentioned above. CA Speedway (with stock pan and X51kit) drops from 60lbs of oil pressure in the banking to 20lbs....... for 50-60ft at 130+mph. Next track that we have oil pressure *drop? Chuckwalla. Guess which corner? The banked corner. For 30-40ft. 60 down to 30. Who cares. LOL The engine will run for several minutes with no oil pressure.

Data. Data. Data. It makes all of the difference in the world.

[AZ986S]

Originally Posted by Brad Roberts

You'll be disappointed **somebody sucked you into that deep sump. The 2.5's have nowhere near the issues the 3.2/3.4/3.6/3.8 M96 and M97's. The 2.5 spins 1k less RPM and doesn't fill the heads with oil as bad as the engines I mentioned above. CA Speedway (with stock pan and X51kit) drops from 60lbs of oil pressure in the banking to 20lbs....... for 50-60ft at 130+mph. Next track that we have oil pressure *drop? Chuckwalla. Guess which corner? The banked corner. For 30-40ft. 60 down to 30. Who cares. LOL The engine will run for several minutes with no oil pressure.

Brad, I was at Chuckwalla last week. Reviewing my in car video, I did not see my Accusump trigger in the 10 deg banked turn. That would suggest no less than 35-40 psi, at least for my setup. Of course, I wasn't running at extreme cornering Gs either, maybe 0.9-1.0 Gs. I do run the EBS oil baffle (X51 type) with a 2 QT Accusump and the 35-40-psi system, with Mobil 1 5W50 oil.

Here's the link:

https://youtu.be/KaEAu7W8_bM

Thre's an orange LED (to the left of the dual gauges) that comes ON whenever the accusump dumps. I does come on occasionally on turns 9-10, 16.

[steved0x]

Originally Posted by AZ986S

Brad, I was at Chuckwalla last week. Reviewing my in car video, I did not see my Accusump trigger in the 10 deg banked turn. That would suggest no less than 35-40 psi, at least for my setup. Of course, I wasn't running at extreme cornering Gs either, maybe 0.9-1.0 Gs. I do run the EBS oil baffle (X51 type) with a 2 QT Accusump and the 35-40-psi system.

Here's the link:

https://youtu.be/KaEAu7W8_bM

Thre's an orange LED (to the left of the dual gauges) that comes ON whenever the accusump dumps.

One thing to note, and this may be a factor - the accusump oil pressure switch is measuring closer to the oil pump, and most aftermarket oil pressure sensors go in the valve cover where it reads around 10 PSI lower since it is near the end of the pressurized oil path? I have always wondered too if some of the pressure dips seen on some turns is an artifact of the oil pressure measuring point in the valve cover?

It might be an interesting experiment to really zoom your video in on the gauges and the accusump light to see the correlations.

[thstone]

Originally Posted by AZ986S

Brad, I was at Chuckwalla last week. Reviewing my in car video, I did not see my Accusump trigger in the 10 deg banked turn. That would suggest no less than 35-40 psi, at least for my setup. Of course, I wasn't running at extreme cornering Gs either, maybe 0.9-1.0 Gs. I do run the EBS oil baffle (X51 type) with a 2 QT Accusump and the 35-40-psi system, with Mobil 1 5W50 oil.

Here's the link:

https://youtu.be/KaEAu7W8_bM

Thre's an orange LED (to the left of the dual gauges) that comes ON whenever the accusump dumps. I does come on occasionally on turns 9-10, 16.

I'll see Brad this weekend and we'll discuss...

[Brad Roberts]

Tom,

You now need to calibrate the dash to the new sending unit (PIWIS1-2) which.. requires emptying the tank

[thstone]

Originally Posted by Brad Roberts

Tom,

You now need to calibrate the dash to the new sending unit (PIWIS1-2) which.. requires emptying the tank

Isn't it close enough "as-is"?

[thstone]

Originally Posted by thstone

Isn't it close enough "as-is"?

No, it wasn't. I had House Automotive drain the tank and perform the calibration. Should be good to go now!