Shaping up a new-to-me 07 GT3
06-10-2014, 02:13 PM
#78
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Thread Starter
Tom, there is a centering tool for the tap such that you chuck the centering tool in a drill press and use it to center your tap. Put the soon to be nut in a vise, lower and engage the tool into the tap's chamfer and you end up with a very well centered hole with less effort. Obviously the drill doesn't get turned on.
06-10-2014, 02:17 PM
#79
Rennlist Member
There isn't much thread to grab so the thickness of the hat matters! Also I want to use the hat that puts the spring nearest to the original height AND mount the shock so that the travel(stroke) is not compromised.
The black hat is JRZ. The short gold hat is .2GT3. The tall one with the long skirt is .1GT3/Cup. I'm going with the one with the shallowest middle hole to get as more grip on the threaded shock stem.
I ended up shaving down the lower monoball bushing to get additional(sufficient) thread grip.
The black hat is JRZ. The short gold hat is .2GT3. The tall one with the long skirt is .1GT3/Cup. I'm going with the one with the shallowest middle hole to get as more grip on the threaded shock stem.
I ended up shaving down the lower monoball bushing to get additional(sufficient) thread grip.
Is the middle hole in the upper spring adapter (gold part) small enough to where it stops on the shoulder of the shock rod, or is it larger than this shoulder diameter and able to slide on the actual shock rod? Do you have an opinion on which is better? Does this piece necessarily have to be clamped by the upper nut?
06-10-2014, 03:23 PM
#80
GT3 player par excellence
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ok tom, you are not making ANY sense to me
at some point, the nor cal crew will have to fly you out to set up our cars ;-)
at some point, the nor cal crew will have to fly you out to set up our cars ;-)
06-10-2014, 03:36 PM
#81
Rennlist Member
Thread Starter
TPC Racing. Its called the DSC. Mr. Levitas started the development when the first PASM 997 came out back in 2005. The shocks themselves have huge range, they can be controlled like a fuel injector or electronic throttle body to produce the shape of the desired torque curve. The wiring is already in the cars, the data is already flowing in CAN, they only needed the controller with the capability. The different OEM PASM boxes work the same(full stiff or full soft), the only difference is the CAN ID for the different model cars/options. The software is not available to the public...yet. The current DSC maps are derived from 10 years of our pro racing data from Motec data acq. A lot of eastcoast track guys have been running it. Many 997TT's are running them to reduce push.
I don't have DSC for my car yet because the .1 cars are equipped with factory 2-axis accelerometer(yaw sensor). DSC needs 3-axis data to enable full function. Currently we are working to source an inexpensive 3-axis accelerometer. All .2 cars are factory equipped with 3-axis. Exception to .1 cars are Turbo and GT2, they have 3-axis. DSC is a 5-minute plug in job for cars with 3-axis.
At the moment I am making my PASM coilovers as good as they can work until adding DSC and 3-axis accelerometer.
I don't have DSC for my car yet because the .1 cars are equipped with factory 2-axis accelerometer(yaw sensor). DSC needs 3-axis data to enable full function. Currently we are working to source an inexpensive 3-axis accelerometer. All .2 cars are factory equipped with 3-axis. Exception to .1 cars are Turbo and GT2, they have 3-axis. DSC is a 5-minute plug in job for cars with 3-axis.
At the moment I am making my PASM coilovers as good as they can work until adding DSC and 3-axis accelerometer.
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06-10-2014, 04:14 PM
#82
Rennlist Member
Thread Starter
Tom,
Is the middle hole in the upper spring adapter (gold part) small enough to where it stops on the shoulder of the shock rod, or is it larger than this shoulder diameter and able to slide on the actual shock rod? Do you have an opinion on which is better? Does this piece necessarily have to be clamped by the upper nut?
Is the middle hole in the upper spring adapter (gold part) small enough to where it stops on the shoulder of the shock rod, or is it larger than this shoulder diameter and able to slide on the actual shock rod? Do you have an opinion on which is better? Does this piece necessarily have to be clamped by the upper nut?
06-10-2014, 05:41 PM
#83
Rennlist Member
Thread Starter
The Shock Lineup
Protocav- the PASM rear shock must be threaded to or "clamped" by the upper monoball bushing(bushing nut) because the stem doesn't protrude above the monoball like other shocks. GT3/GT2/Cup use bushing nut on the front shocks.
I used the envelope's bottom edge to show where all three shocks in the photo mount to the bottom of the spring hat. From left: PASM, Cup, JRZ.
I guess not many people, if any at all, have gone through the trouble to install articulating solid upper rear mounts for PASM shocks. I definitely see the value in it, especially with DSC.
I used the envelope's bottom edge to show where all three shocks in the photo mount to the bottom of the spring hat. From left: PASM, Cup, JRZ.
I guess not many people, if any at all, have gone through the trouble to install articulating solid upper rear mounts for PASM shocks. I definitely see the value in it, especially with DSC.
06-10-2014, 06:15 PM
#84
TPC Racing. Its called the DSC. Mr. Levitas started the development when the first PASM 997 came out back in 2005. The shocks themselves have huge range, they can be controlled like a fuel injector or electronic throttle body to produce the shape of the desired torque curve. The wiring is already in the cars, the data is already flowing in CAN, they only needed the controller with the capability. The different OEM PASM boxes work the same(full stiff or full soft), the only difference is the CAN ID for the different model cars/options. The software is not available to the public...yet. The current DSC maps are derived from 10 years of our pro racing data from Motec data acq. A lot of eastcoast track guys have been running it. Many 997TT's are running them to reduce push.
I don't have DSC for my car yet because the .1 cars are equipped with factory 2-axis accelerometer(yaw sensor). DSC needs 3-axis data to enable full function. Currently we are working to source an inexpensive 3-axis accelerometer. All .2 cars are factory equipped with 3-axis. Exception to .1 cars are Turbo and GT2, they have 3-axis. DSC is a 5-minute plug in job for cars with 3-axis.
At the moment I am making my PASM coilovers as good as they can work until adding DSC and 3-axis accelerometer.
I don't have DSC for my car yet because the .1 cars are equipped with factory 2-axis accelerometer(yaw sensor). DSC needs 3-axis data to enable full function. Currently we are working to source an inexpensive 3-axis accelerometer. All .2 cars are factory equipped with 3-axis. Exception to .1 cars are Turbo and GT2, they have 3-axis. DSC is a 5-minute plug in job for cars with 3-axis.
At the moment I am making my PASM coilovers as good as they can work until adding DSC and 3-axis accelerometer.
06-10-2014, 06:51 PM
#85
Rennlist Member
Protocav- the PASM rear shock must be threaded to or "clamped" by the upper monoball bushing(bushing nut) because the stem doesn't protrude above the monoball like other shocks. GT3/GT2/Cup use bushing nut on the front shocks.
I used the envelope's bottom edge to show where all three shocks in the photo mount to the bottom of the spring hat. From left: PASM, Cup, JRZ.
I guess not many people, if any at all, have gone through the trouble to install articulating solid upper rear mounts for PASM shocks. I definitely see the value in it, especially with DSC.
I used the envelope's bottom edge to show where all three shocks in the photo mount to the bottom of the spring hat. From left: PASM, Cup, JRZ.
I guess not many people, if any at all, have gone through the trouble to install articulating solid upper rear mounts for PASM shocks. I definitely see the value in it, especially with DSC.
Great info here, thanks again. I have installed the rear upper monoball plates/bushings on my .2 and I had to find the right combination of spacers for the monoball which allowed the correct amount of thread protrusion to grab the nut. I definitely get you. I'm thinking about re-springing the car and I like the upper spring mount that you used. I'll have to piece something together like you did.
06-10-2014, 06:53 PM
#86
Rennlist Member
TPC Racing. Its called the DSC. Mr. Levitas started the development when the first PASM 997 came out back in 2005. The shocks themselves have huge range, they can be controlled like a fuel injector or electronic throttle body to produce the shape of the desired torque curve. The wiring is already in the cars, the data is already flowing in CAN, they only needed the controller with the capability. The different OEM PASM boxes work the same(full stiff or full soft), the only difference is the CAN ID for the different model cars/options. The software is not available to the public...yet. The current DSC maps are derived from 10 years of our pro racing data from Motec data acq. A lot of eastcoast track guys have been running it. Many 997TT's are running them to reduce push.
I don't have DSC for my car yet because the .1 cars are equipped with factory 2-axis accelerometer(yaw sensor). DSC needs 3-axis data to enable full function. Currently we are working to source an inexpensive 3-axis accelerometer. All .2 cars are factory equipped with 3-axis. Exception to .1 cars are Turbo and GT2, they have 3-axis. DSC is a 5-minute plug in job for cars with 3-axis.
At the moment I am making my PASM coilovers as good as they can work until adding DSC and 3-axis accelerometer.
I don't have DSC for my car yet because the .1 cars are equipped with factory 2-axis accelerometer(yaw sensor). DSC needs 3-axis data to enable full function. Currently we are working to source an inexpensive 3-axis accelerometer. All .2 cars are factory equipped with 3-axis. Exception to .1 cars are Turbo and GT2, they have 3-axis. DSC is a 5-minute plug in job for cars with 3-axis.
At the moment I am making my PASM coilovers as good as they can work until adding DSC and 3-axis accelerometer.
06-10-2014, 07:06 PM
#88
Rennlist Member
Thread Starter
Thanks for sharing the pics. On your rear shock, does the purple color conical shaped adaptor articulate independently from the monoball plate or is it seated flat on to the plate? I couldn't tell from the pics, its dark in that area.
06-10-2014, 07:16 PM
#89
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Thread Starter
06-10-2014, 07:19 PM
#90
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Thread Starter
Sweet, I still have my PASM original shocks and setting this up including advanced DSC for a more "motorsports" traction/stability control would be very nice. currently have JRZ pro RS dampers going on the car so very interested to see what you come up with. Could always unload them and go back to a modified stock setup... Sign me up for updates...
Will do.