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Porsche 997.1 Turbo Bolt in YPipe to Protomotive intercoolers and Gt3 intake manifolds with 82mm throttle bodies
997 Bolt in YPipe to Protomotive intercoolers
$1,211.11
Protomotive Porsche 993 GT2 fuel pump upgrades
Porsche 993 GT2 fuel pump
$307.69
Porsche Boxster Cayman 997 Level 2 Tuning
Porsche 993 Carrera level 2 tuning OTP 1995-1996
$1,995.00
Porsche 964 Tuning
964 C2/C4 OEM DME tuning 1989-1994 Eprom
$440.00
Protomotive 4340 Forged and shot-peened Stroker Rods for Porsche 911 930 964 993 GT3 996tt 997.1t
Forged Connecting Rods for Porsche 911 930 964
$1,890.50
Protomotive Stage 3 upgrade for Porsche 911 Carrera Turbo system
Stage 3 911/930 Carrera Turbo system (1984-1989)
$18,863.64
Protomotive ecu dme Tuning
GT3-3 OEM DME tuning 2014-2021
$1,295.50
Triple pump in tank 997.1T fuel system
Triple pump in tank 997.1T fuel system
$2,175.30
VGT Inlet Adapters
997 and 991 Turbo VGT inlet adapters
$193.82
Fuel Pressure Regulator for Protomotive 911 Carrera Turbosystems
Turbo 911 Carrera Fuel pressure regulator
$755.20
Brick
Porsche Bricked Ecu Repair
$565.38
103.6 ring holder tool
103.6 Piston Ring Holder Tool
$175.00
Sachs Stage 3 performance clutch upgrade for Porsche
Sachs Stage 3 Clutch upgrade for Porsche
$3,175.99
1995-1996-1997-1998 Porsche 993 turbo tuning
Porsche 993 Turbo tuning 1997-1998 Flash
$1,995.50
Protomotive Forged 4340 Connecting rods for Porsche 997.2, 991.1 & 991.2 Turbo
Forged Connecting Rods for Porsche 9972 991 Turbo
$1,890.50
Protomotive billet Blow off valves for Porsche upgrades
Billet Blow off valves 964, 993, 996, 997.2, 991 Turbo
$157.32
Durametric GEN2 Diagnostic Cable for Porsche OBD2
GEN2 Cable Reading and Flashing Instructions
$0.00
Protomotive Billet GT3 manifold bases for 996 and 997 Turbo
Billet GT3 Manifold Base for 997 Turbo
$250.00
Porsche BorgWarner k16 & K24 993TT Outlet Flange 304S
993 Turbo Outlet Flange
$42.10
Protomotive Porsche 997.1 Turbo VGT upgrade Billet Compressor Wheel
Protomotive 997 Turbo VGT Upgrades
$2,995.50

993 Turbo systems and conversions
Porsche 911 Turbo systems and conversions
Turbo systems 964
Fun Builds for your 993 Turbo
Fun Builds for your 997.2 Turbo
Fun to Crazy Builds for your 996TT
Porsche Engine Building
Ultimate Street Car Builds
Protomotive Consulting
Intake 996 Turbo / X50 / GT2
Clutch 997.1 Turbo / GT2

997.1 / GT2 / GT2RS Engine

Porsche Boxster Cayman 997 Level 2 Tuning
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Porsche 993 Carrera level 2 tuning OTP 1995-1996

$1,995.00
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Porsche Boxster Cayman 997 Level 2 Tuning
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Porsche 993 Carrera level 2 tuning 1997-1998

$1,395.00
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Custom turbo tuning for 911 Carrera
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Turbo 911 Carrera tuning 1984-1989

$995.00
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Fuel Pressure Regulator for Protomotive 911 Carrera Turbosystems
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Turbo 911 Carrera Fuel pressure regulator

$755.20
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10mm Inconel 625 Head Stud kit for Porsche 996, 997 turbo and GT3
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10mm Inconel 625 Head Studs for Porsche sub 1000whp

$1,395.00
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14x1.5mm to 12mm hose inlet adapter
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Fuel Pump Inlet Adapter M14 to 12mm Hose

$63.00
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Porsche 964 993 GT3 Manifold upgrade base
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964 993 Manifold bases for GT3 Intakes

$325.00
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Porsche 996 Turbo fuel return line adapter fitting
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Fuel Return Fitting Adapter for 996 Turbo

$118.15
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1984-1989 Porsche 911 3.2 Carrera Fuel Pressure Regulator
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911 Carrera Fuel pressure regulator

$279.50
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Ultimate builds. Protomotive Porsche Gt3 Intakes for 996 & 997.1 turbo engine upgrades
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Porsche 996 Turbo 4.1L build

$86.55 – $20,000.00
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99610143570, 99610113780 intermediate shaft bearings for Porsche 911
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Intermediate Shaft Bearings for Porsche 911 engines

$146.58
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Main Bearings for Porsche 911, 930, 964, 993, 996 turbo, 997 turbo, GT3, GT2, GT2RS
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Main Bearings for Porsche 964 993 996 997 Turbo

$868.49
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Rod Bearings for Protomotive 80.4 Crankshafts
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Rod Bearings for Stroker Cranks and Rods

$322.80
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12 pieces 110x2.5mm Green Viton Orings for Porsche
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110x2.5mm Green Viton ORings for Porsche 996 997 Turbo

$120.00
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104x2.0mm FKM FPM Viton O-ring for Porsche 996 & 997.1 Turbo (Green)
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104x2mm Green Viton ORings for Porsche 996 997 Turbo

$60.00
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Protomotive Billet GT3 manifold bases for 996 and 997 Turbo
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Billet GT3 Manifold Base for 997 Turbo

$250.00
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Porsche 997 Turbo throttle body plenum upgrade
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High Performance Plenum for Porsche 997 Turbo

$1,200.05
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99760511501 997 Turbo Throttle body 74mm
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74mm Porsche 997 Turbo Throttle body

$582.90
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Porsche GT3 Throttle Body
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82mm Porsche GT3 Throttle body

$582.90
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Protomotive Logo Sticker on rear window
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Protomotive Rear Window Sticker

$19.95
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Protomotive Consulting Service

We can help you build your dream Porsche here at Protomotive, your local shop, or even at home in your garage.

 

To start on your Protomotive project, head to the Consulting Page.

Contact Us

E-mail: sales@protomotive.com

 

Phone: +1 (870) 420-3889

 

Address: HC 33 Box 40B Harrison, AR 72601

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The valve stem diameters are the same/ guides are about the same. I don't have springs on here, but same spring package would work on both. It's all bolt patterns and what not; it's made to bolt up to the standard cam housings. Because we've got the same number of valves, same number of plugs, same number of everything, the billet heads are an OEM replacement style cylinder head. I don't know if you can notice, but the secondary air injection port is missing on these. The secondary air injection port has a nasty habit on turbo heads of torching out the seal which gives you a crazy exhaust leak or it sounds like you've blown a cylinder head and a liner out. This happens because the exhaust pressure and temperature going down through there is so high it literally torches a hole through the side which is incredibly damaging to the cylinder head. So rather than having to plug these or do some machine work or weld them, they just don't exist; so you've got a much stronger head- no potential for leak path there. This series is from our video Ep. 1: Billet Porsche 993 Turbo Cylinder Head Unboxing, Review, and Factory Comparison . We recently got shipped some Billet Porsche 993 Turbo Cylinder Heads from Pauter to install flame rings and wanted to do a little review and factory comparison for you guys :) We'll be covering everything from how these heads are packed for shipping to all the differences you'll expect to see compared to a factory 993 Turbo Cylinder Head including valve size, port size + exhaust port shape, cooling fin thickness + the impact that can have on thermal diffusivity, etc.! Stay tuned for the rest of the series where we also do a deep dive into the metallurgy and discuss which alloys work best for Cylinder Heads and why 🔬🧑‍🔬 . Here's Pauter's website if you'd like to check them out! https://pauter.com/ . Products Mentioned Stroker Crank https://www.protomotive.com/wp422/product/stroker-cranks-for-930-964-993-gt3-996t-997t Connecting Rods for Stroker Crank https://www.protomotive.com/wp422/product/stroker-rods-for-porsche-911-930-964-993-gt3-996-997-1-turbo . Like, follow and Subscribe so we can keep making more videos for you. Let us know what else you'd like to hear about in the comments below. . If you'd like to learn more and see more fun videos Subscribe to our channel here: https://www.youtube.com/@protomotive . Visit us at https://www.protomotive.com Check our tech library / blog out at: https://www.protomotive.com/wp422/protomotive-tech-tips . #protomotive #porsche993turbo #porsche #aircooled #enginetuning #enginetechnology #997turbo #cylinderhead #horsepower #porsche993c4s #porsche993 #porsche997turbo #porsche911 #porsche911turbo #porsche911turbos
On the exhaust side you can see the ports on these things are a little strange- they're what you'd call the D-shape port. We're looking at about 40 millimeters, so the port size hasn't changed. What they're doing with the D-shape is increasing the short side radius at the port to keep it from not necessarily cavitating but leaving the wall when you're doing port work and what not. If the short side radius gets too tight in there, you get a turbulent boundary layer rather than following the wall; so they bring the wall out to keep that boundary layer/or fill this boundary layer with aluminum so that the flow stays attached to the inside radius. even though the port is slightly smaller in diameter, you actually increase or improve flow because you've gotten rid of a turbulent boundary layer on the inside radius. The other advantage of the D-shaped port is it does provide a slight AR and a reversionary effect on the port so it keeps the flow from backing back up into the port. That was popular for a while and still effective. This series is from our video Ep. 1: Billet Porsche 993 Turbo Cylinder Head Unboxing, Review, and Factory Comparison . We recently got shipped some Billet Porsche 993 Turbo Cylinder Heads from Pauter to install flame rings and wanted to do a little review and factory comparison for you guys :) We'll be covering everything from how these heads are packed for shipping to all the differences you'll expect to see compared to a factory 993 Turbo Cylinder Head including valve size, port size + exhaust port shape, cooling fin thickness + the impact that can have on thermal diffusivity, etc.! Stay tuned for the rest of the series where we also do a deep dive into the metallurgy and discuss which alloys work best for Cylinder Heads and why 🔬🧑‍🔬 . Here's Pauter's website if you'd like to check them out! https://pauter.com/ . Products Mentioned Stroker Crank https://www.protomotive.com/wp422/product/stroker-cranks-for-930-964-993-gt3-996t-997t Connecting Rods for Stroker Crank https://www.protomotive.com/wp422/product/stroker-rods-for-porsche-911-930-964-993-gt3-996-997-1-turbo . Like, follow and Subscribe so we can keep making more videos for you. Let us know what else you'd like to hear about in the comments below. . If you'd like to learn more and see more fun videos Subscribe to our channel here: https://www.youtube.com/@protomotive . Visit us at https://www.protomotive.com Check our tech library / blog out at: https://www.protomotive.com/wp422/protomotive-tech-tips . #protomotive #porsche993turbo #porsche #aircooled #enginetuning #enginetechnology #997turbo #cylinderhead #horsepower #porsche993c4s #porsche993 #porsche997turbo #porsche911 #porsche911turbo #porsche911turbos
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