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1989-1994 911 Carrera Turbosystems spreadsheet

1989 – 1994 911 Carrera 3.6L C2 / C4
Description Stage 1 Stage 2 Stage 3 Stage 4 Stage 4+
Protomotive Intercooler n.a. Included Included Included Included
Protomotive SS Headers n.a. n.a. n.a. Included Included
Protomotive SS Muffler Included Included Included Included Included
Protomotive SS Heater n.a. n.a. n.a. Included Included
Protmotive Fuel Pressure Reg. Included Included Included Included Included
Protmotive Software Included Included Included Included Included
Protmotive Manifold Straps Included Included Included Included Included
Turbocharger Single Single Single Twin Twin
Boost Control Mechanical Electronic Electronic Electronic Electronic
Boost Gauge n.a. Electronic Electronic Electronic Electronic
Clutch Upgrade n.a. Disk Only Disk / Pressure Plate Disk / Pressure Plate Disk / Pressure Plate
High Flow Fuel Injectors Included Included Included Included Included
Fuel Pump n.a. High Flow Twin Pumps Twin Pumps Twin Pumps
Cylinder Head Seal n.a. n.a. Flame Ringed Flame Ringed Flame Ringed
Horsepower Capability 400 hp 560 hp 600 hp 650 hp 700 hp
Max Boost Pressure .5 bar 1.0 bar 1.2 bar 1.2 bar 1.25 bar
Engine Displacement (cc) 3600 3600 3745 3600 3745
Compression Ratio 8.25 8.25 8.00 8.25 8.00
Spark Plugs Two per Cylinder Two per Cylinder Two per Cylinder Two per Cylinder Two per Cylinder
Ignition System Inductive Inductive Capacitive Discharge Capacitive Discharge Capacitive Discharge
Engine Rebuild Top – End Top – End Top – End Complete Complete
Alternate Camshaft Profiles Optional Optional Optional Optional Optional
High Rate Valve Springs Optional Optional Optional Optional Optional
Ported manifolds Optional – pre 1992 Optional – pre 1992 Optional – pre 1992 Optional – pre 1992 Optional – pre 1992
Protomotive Mass Flow Sensor Optional Optional Optional Optional Optional
Lightweight Clutch Package Optional Optional Optional Included Included
Approximate Installation Time 4 – 6 weeks 6 – 8 weeks 8 – 10 weeks 12 – 16 weeks 12 – 16 weeks
Kit Available To Distributors Only To Distributors Only To Distributors Only To Distributors Only To Distributors Only

1989-1994 911 Carrera Turbosystems spreadsheet

Note: Kit items are recommendations only and may change as further
development has been completed.

Did we create the Ultimate Porsche engine? We'll let you decide :) How to mod your Turbo with a GT3 Top-End, Part 1 In the last few episodes, we covered everything from the Psychology of the Owner to the advantages of a GT3 top-end and a Turbo top-end, AND how to mod your GT3 with a Turbo Top-End-- so go check those out if you missed them! And finally, here's how to mod your 911 Turbo into a high revving GT3 top-end beast!! 💪 If you have a 996 or 997.1 Turbo and wanna upgrade to the GT3 top-end the road is a bit easier than what the GT3 guys have to go through --- You'll need GT3 heads, cam housings, camshafts, lifters, cam actuators, and a matching GT3 intake manifold. The GT3 heads have the same cooling and oiling passages as the Turbo heads along with the identical bolt pattern- this makes them a bolt on to the short block of the Turbo engine. The intake port is giant compared to that, it's easily a 1/2 inch across larger, about 1/4 inch on either side. If you're running OEM Turbo pistons with this setup you'll need to fly cut the pistons for valve reliefs, otherwise most CP or other aftermarket pistons already have a full GT3 system valve relief- even in the standard Turbo piston upgrade. We're going to find out if a GT3'd Turbo or a Turbo'd GT3 is cooler in this series, so be sure to Subscribe so you don't miss any! Here's the full video if you'd rather not wait :) https://youtu.be/3XetsvYdBGc We Created the Ultimate Porsche engine! But which should you begin with? Should we mod the iconic Porsche GT3, or the Amazing Porsche 911 Turbo? Then Which is cooler? A 911 Turbo with a GT3 top end or a Highly modded GT3 with a Turbo? We'll talk about the psychology of the owner, resale of the car, complexity of the modifications, how to do this and the desired outcome, to name a few. . 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 . Products mentioned Visit us at: https://www.protomotive.com to pick up the products mentioned in this video! b-roll credits: GT3 cam housing racecarsdirect.com cam actuators rennlist.com #protomotive #porsche #porsche997turbo #997turbo #porsche911gt3 #dynos #porsche997turbo #porsche911 #porsche911turbo #motec #porsche997turbo #turbos #porsche996turbo #996turbo spa circut, sn track, 911 gt3 on track, racing porsches on track, best porsche on track, formula 1 spa, f1 spa #supercar review, luxury car review, 4k car review 911 gt3 turbo kit, twin turbo 911 gt3, turbo 911 gt3, porsche gt3 vs turbo, need for speed prostreet porsche 911 turbo, gt3 or turbo, supercharged, porsche gt3 turbo kit, porsche 911 gt3 rs, turbo s or gt3, porsche 911 gt3 vs turbo, turbocharged gt3, 991 gt3 vs turbo, porsche 911 turbo 2000 hp, 1000 hp porsche 911 gt3 or turbo s, porsche 911 turbo custom, gt3 or turbo s
Did we create the Ultimate Porsche engine? We'll let you decide :) How to mod your GT3 with a Turbo Top-End, Part 4 In the last few episodes, we covered everything from the Psychology of the Owner to the advantages of a GT3 top-end and a Turbo top-end, so go check them out if you missed them! So finally, here's how to mod your GT3 into a fire-breathing turbo monster! 🔥🦖 We're now getting into the obstacles you'll face when doing this type of conversion. (FYI we covered scavenge pumps, oil feeds, and clutch updates in the last two episodes.) For body mods the rear quarters could be changed to a Turbo, or the inlet vents from a Turbo could be installed into your GT3 rear quarters. The ducting and intercooler framework should bolt right in since they share a common chassis. The rear bumper will either need vents installed for the intercooler exits or could be changed to a Turbo rear bumper which will then require updating the exhaust system to side exits or modding the Turbo rear bumper to a center-exit GT3. And don't worry, you can keep your massive wing on there since the intercooling goes in the rear quarters and the intake plumbing can take the place of the factory airbox. That's definitely the overly simplified version of this conversion- getting into the details of this type of conversion could fill your entire Encyclopedia Britannica! 📖 We're going to find out if a GT3'd Turbo or a Turbo'd GT3 is cooler in this series, so be sure to Subscribe so you don't miss any! Here's the full video if you'd rather not wait :) https://youtu.be/3XetsvYdBGc We Created the Ultimate Porsche engine! But which should you begin with? Should we mod the iconic Porsche GT3, or the Amazing Porsche 911 Turbo? Then Which is cooler? A 911 Turbo with a GT3 top end or a Highly modded GT3 with a Turbo? We'll talk about the psychology of the owner, resale of the car, complexity of the modifications, how to do this and the desired outcome, to name a few. . 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 . Products mentioned Protomotive Dual Clutch Upgrade: https://www.protomotive.com/wp422/product/protomotive-dual-clutch-kit 997 Bolt in YPipe to Protomotive intercoolers: https://www.protomotive.com/wp422/product/997_bolt_in_ypipe_to_protomotive_intercoolers Consulting Service: https://www.protomotive.com/wp422/product/protomotive-consulting-service Visit us at: https://www.protomotive.com Check our tech blog library out at: https://www.protomotive.com/wp422/protomotive-tech-tips b-roll credits: Porsche 996 Turbo @Autogespot FLYWHEEL (911, SINGLE-MASS "RS" VERSION) www.europaparts.com #protomotive #porsche #porsche997turbo #997turbo #porsche911gt3 #dynos #porsche997turbo #porsche911 #porsche911turbo #motec #porsche997turbo #turbos #porsche996turbo #996turbo spa circut, sn track, 911 gt3 on track, racing porsches on track, best porsche on track, formula 1 spa, f1 spa #supercar review, luxury car review, 4k car review 911 gt3 turbo kit, twin turbo 911 gt3, turbo 911 gt3, porsche gt3 vs turbo, need for speed prostreet porsche 911 turbo, gt3 or turbo, supercharged, porsche gt3 turbo kit, porsche 911 gt3 rs, turbo s or gt3, porsche 911 gt3 vs turbo, turbocharged gt3, 991 gt3 vs turbo, porsche 911 turbo 2000 hp, 1000 hp porsche 911 gt3 or turbo s, porsche 911 turbo custom, gt3 or turbo s
Subscribe 
 
 
 
 
 Protomotive Inc. 
 
 
 Protomotive Inc.
  
 20 Google reviews 
 
 Write a review 
  
 
 
  
 
 
 
 Chris Roundtree 
 
 
 Chris Roundtree 
 
2024-02-19
 
 
  
 
I wanted to thank Todd at Protomotive Motorsports for going above and beyond when he helped me sort out a problem with a product that I had purchased from another vendor.

Todd seems to always have the knowledge to put together the best combination of parts to make any model Porsche not only go fast or handle better, but do it reliably.

He always answers the phone. In the rare event he doesn’t pick up he gets back to you within twenty four hours. Emails get responded to just as quick.

I really appreciate having some like Todd available when working on any Porsche as you know he has a proven setup to satisfy any goal.

Thx
Chris
  
 
 
  
 
 
 
 Antreas Smilas 
 
 
 Antreas Smilas 
 
2024-01-22
 
 
  
 
Super in every way..2 years now in ecu and tcu perfect power delivery ,reliable,and fast as mr Todd promise in number...i can say even i draggy was the same numbers as promise to achieve with this set up.
  
 
 
  
 
 
 
 Taylor Berg-Kirkpatrick 
 
 
 Taylor Berg-Kirkpatrick 
 
2024-01-04
 
 
  
 
Todd has got to be the world's expert in forced induction Mezger Porsche engines. I've worked with a bunch of mechanics, tuners, engine builders across multiple Porsches over multiple decades... and Todd has been the most helpful and knowledgeable of the bunch. And this has even been true while working with him remotely! (I'm in CA and he's in AR.) Just by looking at my logs and hearing about my engine rebuild, he's been able to diagnose stuff that in-person mechanics have not been able to. For example, Todd was the only person looking at my car to suggest a problem with a BRV could explain some of the weird behavior... following his advice, I dug in myself... lo and behold, torn BRV diaphragm on bank 1! Wow! Further, Todd has the most experience tuning these cars of any tuner I've worked with. Tune is absolutely solid and safe. Very very confident in his work!!! Absolute strongest possible recommendation!!
  
 
 
  
 
 
 
 N K 
 
 
 N K 
 
2024-01-04
 
 
  
 
Todd and his team are true professionals and they always provide excellent customer service, quality parts they sell and very reliable engine builds. This is very rare in our industry today. Great job Protomotive!
  
 
 
  
 
 
 
 raphael wirth 
 
 
 raphael wirth 
 
2023-05-29
 
 
  
 
Todd est l homme de la situation…. Des difficultés ou des problèmes pour régler le problème? Todd trouve la solution malgré la distance ( je suis français)
Merci à lui et son équipe pour leurs conseils …
Maintenant mon 997 turbo fonctionne à merveille et est un véritable avion de chasse!
Je recommande a 1000% !!!
À bientôt pour d autres évolutions !!!
  
 
 
  
 
 
 
 Adam McGregor 
 
 
 Adam McGregor 
 
2023-04-05
 
 
  
 
I don’t think there is a better shop to shop entrust your Porsche to then Protomotive and the Knighton’s. Just search there name with 993 and you can start to get an idea of their storied history of building monster but reliable 911 Turbos! I have over 12 years and 30k miles (street, autox & track) on the Protomotive set up on my 997tt and it has never skipped a beat!
  
 
 
  
 
 
 
 Piotr L. Pawlak 
 
 
 Piotr L. Pawlak 
 
2023-04-05
 
 
  
 
Unfortunately they could not resolve my issue, but Todd tried very hard to find some other resolutions.
He was very helpful and responsive.
  
 
 
  
 
 
 
 Ben Weil 
 
 
 Ben Weil 
 
2023-03-23
 
 
  
 
Todd is by far the most professional and knowledgeable Porsche person I have ever worked with in my life and I have had many cars and have been doing this for over 20 years. He not only knows how to overcome every single problem, but also knows how to explain exactly what he is doing and brings the car to a point where it feels like stock even though it has double or triple the power. If you go anywhere else you would be making a mistake
  
 
 
  
 
 
 
 Alex May 
 
 
 Alex May 
 
2023-02-20
 
 
  
 
The engineers at Protomotive are absolutely the best. They performed extensive work on my Porsche GT2 and I literally could not be happier. Their work, attention to detail, problem solving and communication with me were all next level. Customer service is remarkable.  I had a question while at the track, on a Saturday, and Todd immediately responded to my questions. Class act.

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