996 Turbo / GT2Turbo discussion on previous model 2000-2004 Porsche 911 Twin Turbo and 911 GT2. Sponsored By Vivid Racing
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I am getting all the tools together to properly adjust the "bypass flap control boxes" (lol no wonder I could not find wastegate in the factory shop manual)
Going to be using my motiv for pressure, and adjusting each wastegate separately.
Pressure to 12 psi for the start of movement.
How do you plan on adjusting 8psi wastegate actuators to 12psi....... ? Personally I do not think you need the gauge. Simply rig up a pressure system from your compressor with a low pressure valve and set to your desired cracking pressure and adjust away.
SWR
Quote:
Originally Posted by tvurt
I am getting all the tools together to properly adjust the "bypass flap control boxes" (lol no wonder I could not find wastegate in the factory shop manual)
Going to be using my motiv for pressure, and adjusting each wastegate separately.
Pressure to 12 psi for the start of movement.
__________________ Blue 2005 TT S - 200 Cell MaxFlo Exhaust, 1 BAR Wastegates, SofTronic Flash, Forge DVs, Custom Headers, Aquamist HFS-6, 3M Clear Bra
2006 Saturn Vue, Lotus Twin Turbo V8; ImpConcepts Mods, 550hp (Sold), Ferrari 328 GTS; Stock (Sold), Audi S4 Twin Turbo 350hp (Sold), Sunbeam Tiger V8 Stock (Sold) The rest don't fit! "Arguing with an Engineer is like rolling in the mud with a pig. Just don't forget the pig likes it!"
What is the Max you can dial into the stock K24 Actuators? Anyone Know? The chart actually says 10psi., is that real?
I would love to replace the complete units with nice aftermarket ones but I have read so many bad things about rods breaking etc., and I do not want to destroy mine to do the spring mod.
I wish I could just find some brackets. Then I could source some aftermarket actuators and go from there. I was thinking of replacing them with 8 - 14psi adjustables. They are relatively inexpensive but I cannot find any brackets for the K24s.
SWR
Quote:
Originally Posted by Danyol
Been There!
Let me know if you have any questions (note I have standard K24s on an X50; Porsche spec 4mm for 0.5bar)
__________________ Blue 2005 TT S - 200 Cell MaxFlo Exhaust, 1 BAR Wastegates, SofTronic Flash, Forge DVs, Custom Headers, Aquamist HFS-6, 3M Clear Bra
2006 Saturn Vue, Lotus Twin Turbo V8; ImpConcepts Mods, 550hp (Sold), Ferrari 328 GTS; Stock (Sold), Audi S4 Twin Turbo 350hp (Sold), Sunbeam Tiger V8 Stock (Sold) The rest don't fit! "Arguing with an Engineer is like rolling in the mud with a pig. Just don't forget the pig likes it!"
Thanks, so If I connect up my compressor and set it for 10psi, then adjust the screws/nuts till they just crack each side I should be OK then. Am I understanding you correctly?
OR
Adjusting them to the spec (0.5 bar = 7.35 psi) are you saying gives a READING ON THE BOOST GAUGE IN THE CAR of 10psi.
Just confirming? I think I read you correctly the first time.
Thanks
SWR
Quote:
Originally Posted by Danyol
SWR, "Real" - yes with the factory adjustment; I created the charts with experimental data on a calibrated gauge.
__________________ Blue 2005 TT S - 200 Cell MaxFlo Exhaust, 1 BAR Wastegates, SofTronic Flash, Forge DVs, Custom Headers, Aquamist HFS-6, 3M Clear Bra
2006 Saturn Vue, Lotus Twin Turbo V8; ImpConcepts Mods, 550hp (Sold), Ferrari 328 GTS; Stock (Sold), Audi S4 Twin Turbo 350hp (Sold), Sunbeam Tiger V8 Stock (Sold) The rest don't fit! "Arguing with an Engineer is like rolling in the mud with a pig. Just don't forget the pig likes it!"
You connect directly to the wastegate, set the regulator to 7.35 psi, adjust nuts for a 4mm movement on the dial gauge (from it's resting position). Adjust the two turbo wastegate responses the same way.
The boost gauge is not relevant to the adjustments.
So if I was adjusting for 10psi same thing but for 10psi not 7.35. do you know how high tey will go?
Regards, and thanks for the tutorial.
Ian
Quote:
Originally Posted by Danyol
You connect directly to the wastegate, set the regulator to 7.35 psi, adjust nuts for a 4mm movement on the dial gauge (from it's resting position). Adjust the two turbo wastegate responses the same way.
The boost gauge is not relevant to the adjustments.
__________________ Blue 2005 TT S - 200 Cell MaxFlo Exhaust, 1 BAR Wastegates, SofTronic Flash, Forge DVs, Custom Headers, Aquamist HFS-6, 3M Clear Bra
2006 Saturn Vue, Lotus Twin Turbo V8; ImpConcepts Mods, 550hp (Sold), Ferrari 328 GTS; Stock (Sold), Audi S4 Twin Turbo 350hp (Sold), Sunbeam Tiger V8 Stock (Sold) The rest don't fit! "Arguing with an Engineer is like rolling in the mud with a pig. Just don't forget the pig likes it!"
The physical limit for the stroke appears to be about 11.5 mm. On my car at least, this was at 10 psi. Personally I would adjust to an intermediate point rather than a limit, like Porsche specs it.
If you look at the post ARD put up sometime back, he shows pictures and a description of his homemade device that he used to adjust mine to 8.75 psi...and I'm running a steady 1.1-1.2 bar with the UMW wastegate kit. He hooked it up directly to the wastegate.
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2002 996TT X50, Midnight Blue; Europipe stage 1; 18" CCW CNC Wheels; EVO DV's; EVO GT2 headers; UMW tune and Wastegate kit; Sachs GT2 clutch kit; 997 shifter; factory aero and CF interior.
1987 930S factory slantnose cab; Guard's red all original (till it comes back from the builder on 5/5, then I'll have to change my description of "all original")
1999 996 C2 Iris Blue; caught fire and burned 9/07.
Tom....I don't recall if it was this forum or Rennlist...but Adam (ARD) definitely knows his stuff....and his Rube Goldberg contraption was exactly what it took to dial the wastegates in perfectly balanced....not like some of the guys do by measuring 10mm from the end of the lock nut to the tip of the rod. driver and passenger side rods diiffer in length.
__________________
2002 996TT X50, Midnight Blue; Europipe stage 1; 18" CCW CNC Wheels; EVO DV's; EVO GT2 headers; UMW tune and Wastegate kit; Sachs GT2 clutch kit; 997 shifter; factory aero and CF interior.
1987 930S factory slantnose cab; Guard's red all original (till it comes back from the builder on 5/5, then I'll have to change my description of "all original")
1999 996 C2 Iris Blue; caught fire and burned 9/07.