GT4 - Unlocking the Power Potential!
12-08-2016, 10:46 AM
#871
I also agree on this...I have the sport headers/ exhaust/COBB AP and at 10K miles it has been great with no problems....was going to pull the trigger on the IPD/TB but that GT3 intake setup being tested by TPC and BGB sounds interesting and if I'm going to swap the intake side of the engine (and risk having issues with the dealer) might as well go for the best package....of course, it also depends on cost!
12-08-2016, 11:32 AM
#872
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i am surprised sometimes after so much time, at how much overwhelmingly positive feedback on the intake/exhaust mods for this engine, and yet how much hesitation there still is. This should be a sticky thread somewhere.
"For very little money, you can have a still very street-friendly GT4/Spyder with what feels like a racey engine which breaths fully and has much more power and torque from low to high rpm, just by changing to sport headers (I'm brand agnostic) and adding the intake mods.. don't think.. just press "purchase".. there is literally no performance compromise.. it's ALL better.
"For very little money, you can have a still very street-friendly GT4/Spyder with what feels like a racey engine which breaths fully and has much more power and torque from low to high rpm, just by changing to sport headers (I'm brand agnostic) and adding the intake mods.. don't think.. just press "purchase".. there is literally no performance compromise.. it's ALL better.
12-08-2016, 11:58 AM
#873
Burning Brakes
Agreed! Obviously i am biased because we sell the parts but i have come to understand that a lot of folks have warranty concerns and don't want to take the plunge just yet but in due time they will. i am just happy that everyone is enjoying their parts and that there are no issues.
This is just my .02. I love the intake and exhaust mods I've done. As others have said, they are well worth the cost.
02-25-2017, 11:50 AM
#874
I understand that some owners worry that modifying their cars will void their warranty. I don't share their concerns. Aside from some well-documented issues, few of which pertain to the GT4, most modern Porsches have been extremely reliable. As long as you're not opening up the engine or transmission the other power mods that are available for our cars are extremely unlikely to cause damage that could lead to a warranty claim.
This is just my .02. I love the intake and exhaust mods I've done. As others have said, they are well worth the cost.
This is just my .02. I love the intake and exhaust mods I've done. As others have said, they are well worth the cost.
03-01-2017, 09:52 AM
#875
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I understand that some owners worry that modifying their cars will void their warranty. I don't share their concerns. Aside from some well-documented issues, few of which pertain to the GT4, most modern Porsches have been extremely reliable. As long as you're not opening up the engine or transmission the other power mods that are available for our cars are extremely unlikely to cause damage that could lead to a warranty claim.
This is just my .02. I love the intake and exhaust mods I've done. As others have said, they are well worth the cost.
This is just my .02. I love the intake and exhaust mods I've done. As others have said, they are well worth the cost.
Btw what front lip do you have on the Cayman R in your profile picture?
__________________
Porsche Performance Specialist
John@Fabspeed.com
215-618-9796
Fabspeed Motorsport USA
155 Commerce Drive Fort Washington, PA 19034
www.Fabspeed.com
Porsche Performance Specialist
John@Fabspeed.com
215-618-9796
Fabspeed Motorsport USA
155 Commerce Drive Fort Washington, PA 19034
www.Fabspeed.com
03-19-2017, 06:49 PM
#876
Did you guys just stuff a 4.0L RS motor into a GT4...
ANSWER ME.
You could have upset the space time continuum.
ANSWER ME.
You could have upset the space time continuum.
03-19-2017, 07:40 PM
#877
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03-19-2017, 10:58 PM
#878
whew I thought it was the OEM GT3RS 4.0L that revs to 8800rpm, almost gave my wallet a heart attack...
03-20-2017, 01:12 AM
#879
Burning Brakes
03-20-2017, 06:11 PM
#880
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Ha ha ha! Not exactly. Since the motor in the GT3 requires a different style ECU than what is in the 981s/991s, we did what we think is the next best thing. We took a stock, virgin GT4 engine, bolted the X51 Power Kit to it (Stage II) and then added the 4.0L crank, pistons and rods (Stage III). Same combination of parts that were on the Boxster Spyder we did with Stage III over the summer but it started life as a PDK Cayman S AND we added a full race exhaust. So it's obnoxiously loud and the strongest PDK conversion we have ever done. The guy ran it at Homestead for 2 straight days in the heat and had nothing but smiles. During the test drive it would spin the tires in 1st, 2nd and 3rd unless you had heat in them. It made 415hp and 315 lb/ft at the tires in a dyno room that had 140F intake air temps. I ran no fans to the intakes or the radiator screens. It was an effort to heat soak the car and recreate true track conditions in the southeast. I was running pump gas too. I have asked that the owner run 98 octane when he goes on track in that heat to keep the knock control from going bananas. It's awesome. I would love to put a GT3 motor in one of these cars one day but the cost to execute is insane. This is still a stock Porsche engine and since we don't over-bore, if the owner ever wanted to go back to stock, he could. HOWEVER, there's no chance of that. He loves the car too much now to ever give it up! He likes the 8K RPM upshifts too much!
03-21-2017, 10:01 AM
#881
Ha ha ha! Not exactly. Since the motor in the GT3 requires a different style ECU than what is in the 981s/991s, we did what we think is the next best thing. We took a stock, virgin GT4 engine, bolted the X51 Power Kit to it (Stage II) and then added the 4.0L crank, pistons and rods (Stage III). Same combination of parts that were on the Boxster Spyder we did with Stage III over the summer but it started life as a PDK Cayman S AND we added a full race exhaust. So it's obnoxiously loud and the strongest PDK conversion we have ever done. The guy ran it at Homestead for 2 straight days in the heat and had nothing but smiles. During the test drive it would spin the tires in 1st, 2nd and 3rd unless you had heat in them. It made 415hp and 315 lb/ft at the tires in a dyno room that had 140F intake air temps. I ran no fans to the intakes or the radiator screens. It was an effort to heat soak the car and recreate true track conditions in the southeast. I was running pump gas too. I have asked that the owner run 98 octane when he goes on track in that heat to keep the knock control from going bananas. It's awesome. I would love to put a GT3 motor in one of these cars one day but the cost to execute is insane. This is still a stock Porsche engine and since we don't over-bore, if the owner ever wanted to go back to stock, he could. HOWEVER, there's no chance of that. He loves the car too much now to ever give it up! He likes the 8K RPM upshifts too much!
03-21-2017, 04:58 PM
#882
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It's not as bad as you would think. If you are starting life with a GT4 or a Boxster Spyder and you want just the X51 and the 4.0L upgrade and don't want an LSD and mufflers, before the cost of the Accessport, the tune and any custom dyno tuning, you're right at $30K. Add the headers and the the tuning and you're gaining as much as 100 horsies at the tires! The cost of those items is about $5K to $6K depending on if you're running cats.
03-21-2017, 05:39 PM
#883
It's not as bad as you would think. If you are starting life with a GT4 or a Boxster Spyder and you want just the X51 and the 4.0L upgrade and don't want an LSD and mufflers, before the cost of the Accessport, the tune and any custom dyno tuning, you're right at $30K. Add the headers and the the tuning and you're gaining as much as 100 horsies at the tires! The cost of those items is about $5K to $6K depending on if you're running cats.
But I mean it's great. The cost prohibits me from really doing any power mods so I save a lot of money and just enjoy the car for what it is. Woohoo!
03-21-2017, 06:22 PM
#884
It's not as bad as you would think. If you are starting life with a GT4 or a Boxster Spyder and you want just the X51 and the 4.0L upgrade and don't want an LSD and mufflers, before the cost of the Accessport, the tune and any custom dyno tuning, you're right at $30K. Add the headers and the the tuning and you're gaining as much as 100 horsies at the tires! The cost of those items is about $5K to $6K depending on if you're running cats.
I already have the headers tune and IPD on the car, what is the realistic gain by by increasing displacement for $30k?
03-23-2017, 12:55 PM
#885
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A blistering amount of torque improvement is the biggest transformation, but thats not to say the hp is much less impressive. It is worth a plane ticket to go experience it in person, trust me you'll be more than impressed haha