924 turbo.. why not 944 na?
#1
924 turbo.. why not 944 na?
Just wondering what a 924 turbo has that a 944 na lacks, in order for it to be turbocharged (minus the turbo, obviously). I guess you could say I don't know much about cars so I'm just curious. Also, since you cant put a 951 turbo into a 944 without lots of $$ and modification... why not put a 924 turbo in? Would it be easier?
Edit: I just re-read this and I noticed I didn't really mention the point of what i was asking so i fixed it
Edit: I just re-read this and I noticed I didn't really mention the point of what i was asking so i fixed it
#3
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I'm still confused by your question, but if you're asking "would it be easier to put a 924 turbo engine in a 944 na than putting in a 944 turbo engine?" I think the answer is: no
Also, the 924 engine only made 170 horespower, so it hardly seems worth the effort. Just buy a 944 turbo...
Also, the 924 engine only made 170 horespower, so it hardly seems worth the effort. Just buy a 944 turbo...
#5
The early 924's used the 2.0 vw/audi motor and the mounts are completely different. The 931 is a neat car but some things are harder to come by for it and your really better off in a 924s or a na 944. That said if you don't mind the hassle the 931 offers boost and that can be increased. If you want a turbo 944 just buy a 951 and call it a day.
#6
Race Car
The 924 Turbo was based on an Audi 4 cyl engine and was relatively easy to turbocharge.
The 944/951 engines were a complete rework from the 924 and an independent porsche engine. The 944 2.5L isn't easy to turbocharge well and required a lot of rework to turbocharge.
There's a bit more to it than that but wasny looking to write a technical manual.
Michael
The 944/951 engines were a complete rework from the 924 and an independent porsche engine. The 944 2.5L isn't easy to turbocharge well and required a lot of rework to turbocharge.
There's a bit more to it than that but wasny looking to write a technical manual.
Michael
#7
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for the amount to make any n/a engine into a turbo'd engine, it'd b cheaper to buy the turbo version that was offered from factory.
a 924 turbo would b more power than a 944 8v. but a 944 would b easier for maintence. the ultimate would be a 944 turbo
a 924 turbo would b more power than a 944 8v. but a 944 would b easier for maintence. the ultimate would be a 944 turbo
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#8
Race Director
It is not the the 944 NA is hard to turbo, but since the factory did it... well much easier and more effective to go with the factory work. Same for putting a 951 motor in a NA body. It can be done, but 9 times out of 10 it just easier to start with a 951 because the factory already did it.
#9
Race Director
I found the trick to getting a 951 is to start turbo'ing your N/A. It seems that everyone that attempts it (including me) seems to have a great deal on a 951 fall in their lap...
#10
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The motor mounts are not the same - the bellhousing is not the same, exhaust is not the same. So - you'd need to swap the torquetube, and complete long-block engine with headers then weld an exhaust. The 924 turbo is CIS injected, so you'd need a different fuel pump to drive it - (same one that was in 928's and 911's of the day). Also has a fuel damper - you'll need to find a place for that too. Tachometer will still be adaptable.
That said - if you want to put a 944 Turbo engine in a N/A the torquetube and bellhousing are the same - the motor mounts are the same, the fuel system depending on the car you've got - is the same. So then you'd need a complete Turbo longblock with intake and headers, turbocharger and wiring harness and computer - and the transmission (non turbo tranns just can't take it).
So for an easier swap (and sorry to those on the forum but the swap is damned easy IMO it ain't rocket science) you get more horsepower for less work with an engine that still has parts available for it.
Does this answer the question?
EDIT - But some will argue that now you've got too much HP on a car with too small of brakes suspension blah blah blah. Keep in mind the 70's 928's ran the same brakes as the N/A 944 - had 240HP and weighed 3400lbs or thereabouts. I think the N/A brakes are just fine for the street.
That said - if you want to put a 944 Turbo engine in a N/A the torquetube and bellhousing are the same - the motor mounts are the same, the fuel system depending on the car you've got - is the same. So then you'd need a complete Turbo longblock with intake and headers, turbocharger and wiring harness and computer - and the transmission (non turbo tranns just can't take it).
So for an easier swap (and sorry to those on the forum but the swap is damned easy IMO it ain't rocket science) you get more horsepower for less work with an engine that still has parts available for it.
Does this answer the question?
EDIT - But some will argue that now you've got too much HP on a car with too small of brakes suspension blah blah blah. Keep in mind the 70's 928's ran the same brakes as the N/A 944 - had 240HP and weighed 3400lbs or thereabouts. I think the N/A brakes are just fine for the street.
#11
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Almost any cheap 951 you'll buy, will be leaking fluids and have all sort of age related problems, so if you want a really good car, you will have to totally disassemble it and assemble it together with new seals etc.
So if your goal is close to perfect car, you can get whatever combination, and you will still have to work on it a LOT.
So if your goal is close to perfect car, you can get whatever combination, and you will still have to work on it a LOT.