1974 2.7 Carrera Engine
#1
Track Day
Thread Starter
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The 73 RS is of course the crown jewel but the motor platform in the 74 carrera's is said to be the "same motor". The US motors were weaker than the Euro motors for emissions reasons I think. As the owner of a 74 Carrera Targa I am interested to understand what exactly was different on the US motors vs the Euro motors? and can the US motor be turned into the Euro motors in a specific way? If it was an emissions issue I am thinking it would be an easy fix to get the motor performing like the 200+ HP 73RS/74 Euro 2.7??
#2
Rennlist Member
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Your US 74 came from the factory with CIS producing 175 HP. a 73 carrera had MFI and produced 210 HP.
Easy to get a US 2.7 to the higher hp without sacrificing reliability.
I invite you to join PCAs 73-77 Cattera FB group https://www.facebook.com/groups/4323378721033917
Easy to get a US 2.7 to the higher hp without sacrificing reliability.
I invite you to join PCAs 73-77 Cattera FB group https://www.facebook.com/groups/4323378721033917
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kalikazam (01-29-2022)
#4
Track Day
Thread Starter
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Your US 74 came from the factory with CIS producing 175 HP. a 73 carrera had MFI and produced 210 HP.
Easy to get a US 2.7 to the higher hp without sacrificing reliability.
I invite you to join PCAs 73-77 Cattera FB group https://www.facebook.com/groups/4323378721033917
Easy to get a US 2.7 to the higher hp without sacrificing reliability.
I invite you to join PCAs 73-77 Cattera FB group https://www.facebook.com/groups/4323378721033917
What are your top 3 easy changes?
#5
Rennlist Member
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Another " easy" way to modify your car is to lose weight. M&K muffler eliminates approx 12 lbs and may make your engine exhale a bit better = a few HP, fiberglass front/ rear bumpers, eliminate back seats etc. Really depends on what you want with your car.
Don't listen to the 2.7 doomsayers - I have 3 cars with 2.7 and they are all great.
if its true HP you are after, not an " easy" upgrade - but build 2.8 or 2.9 motor. easy to get in the 225 -275 Hp range with a build
#6
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Even the US Carreras have gone up in value quite a bit. Instead of modifying your current matching numbers engine, put in a nice 3.0 or 3.2 engine and put yours on the shelf.
You can modify the replacement to your hearts delight without affecting the future value of your car, it will be cheaper too.
You can modify the replacement to your hearts delight without affecting the future value of your car, it will be cheaper too.