Turbocharging a NA 944
03-16-2016, 06:35 PM
#61
2nd Gear
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Turbo an na car
So I wanted to just get some more information from people on this, I have a 1983 NA Porsche 944, and sometime in the not so near future I would like to make it substantially faster. Now I know most people here will say that if I want a faster NA just buy a 951, but this is not the answer I am looking for, I am not interested in what makes the most sense financially, so please don't answer with that.
Anyway, I am interested in having that engine rebuilt and then turbocharged, but I first want to ask a few questions about that.
First I want to try and bore the engine to 3L (hope I'm using the right term there). Is this even possible on the NA and can it be made reliable and safe?
Then the usual port, polish, etc... will be done to it. After that I want to turbo charge the thing, but again, can this be done reliable and safe? One last reminder, money isn't the concern, so when I ask if it's possible to make it reliable I literally mean possible, not sensible.
Now I am assuming this would require a swap to the turbo trans, is that right?
I love my 1983 944, and it's got decent power as is, but eventually I want to dump lots of money into this (instead of a new car) to make it faster, but wanted to see just how far I can go if money is "no issue" (I mean were talking like 20K being close to the max here).
Is there anything else I would need for the swap?
And one final side question, is there anything I can do for cheap (ie under 1000 bucks) to make the NA a good amount faster in the meantime?
Thanks in advanced for any help!
Edit: oh and if the 3L mod and turbo were done, is it still going to be at least a semi smooth engine? For daily driving that is.
Anyway, I am interested in having that engine rebuilt and then turbocharged, but I first want to ask a few questions about that.
First I want to try and bore the engine to 3L (hope I'm using the right term there). Is this even possible on the NA and can it be made reliable and safe?
Then the usual port, polish, etc... will be done to it. After that I want to turbo charge the thing, but again, can this be done reliable and safe? One last reminder, money isn't the concern, so when I ask if it's possible to make it reliable I literally mean possible, not sensible.
Now I am assuming this would require a swap to the turbo trans, is that right?
I love my 1983 944, and it's got decent power as is, but eventually I want to dump lots of money into this (instead of a new car) to make it faster, but wanted to see just how far I can go if money is "no issue" (I mean were talking like 20K being close to the max here).
Is there anything else I would need for the swap?
And one final side question, is there anything I can do for cheap (ie under 1000 bucks) to make the NA a good amount faster in the meantime?
Thanks in advanced for any help!
Edit: oh and if the 3L mod and turbo were done, is it still going to be at least a semi smooth engine? For daily driving that is.
03-16-2016, 07:08 PM
#63
Rennlist Member
How exactly is an American V8 boring? I have ridden, and driven anything from a pro-street BBC Chevelle to a Lingenfelter Corvette C5, and an NHRA nostalgiac pro-stock. I can tell you the only other thing more exciting was hearing the roar of a Lamborghini Diablo VT behind my ears.
No way a 4-banger is going to give me that aural orgasm, let alone the speed.
By the way, your view of an American V8 with no top end is disproven. Please see the latest Ford Coyote Engines, and Chevy Gen IV and V LS engines. Come back and talk after the research and engineering involved in getting a V8 to shriek that is still pushrod, or a 32v Ford Modular engine.
No way a 4-banger is going to give me that aural orgasm, let alone the speed.
By the way, your view of an American V8 with no top end is disproven. Please see the latest Ford Coyote Engines, and Chevy Gen IV and V LS engines. Come back and talk after the research and engineering involved in getting a V8 to shriek that is still pushrod, or a 32v Ford Modular engine.
Sure, there are few i4s that are going to make a delicious noise. It's an acquired taste. The twin cam ones seems to sound a bit nicer. But with modern ECUs and offset grind motors etc there's no shortage of reliable power. We made 650bhp / 610ft-lbs on our 3.1ltr without boosting it anywhere near what the Jap cars do. Look to make noticeably more than that with incoming motor.
03-16-2016, 08:24 PM
#64
Team Owner
Join Date: Oct 2009
Location: one thousand, five hundred miles north of Ft. Lauderdale for the summer.
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You worry about oil price on a car that has mile/per dollar cost several times worse than a taxi?
Regarding reliability, it always comes down to tuning, and likewise on V8.
Haven't had any reliability issues with my 924 and I have not babied it either, actually quite contrary.
But having Porsche engine running at 500+hp is much more fun factor than running a boring american V8 with ancient tech running like a diesel with anemic top tend.
Regarding reliability, it always comes down to tuning, and likewise on V8.
Haven't had any reliability issues with my 924 and I have not babied it either, actually quite contrary.
But having Porsche engine running at 500+hp is much more fun factor than running a boring american V8 with ancient tech running like a diesel with anemic top tend.
the limiter on my short stroke LS7 is 6800 running an oem LS9 cam.
it also has an aluminum flywheel. and it purrs smoothly like a happy tiger at idle.
with camming that number can easily go as high as 8000 with this forged engine.
in fact, here's one going a bit over 8000 running virtually the same internals.....
http://www.superchevy.com/how-to/vem...oke-of-genius/
with the over-bore design and light flywheel she spools up in a few milliseconds.
what do you really hate? ain't my engine man.
you need to hate something really worth hating - like ISIS.
Last edited by odurandina; 03-16-2016 at 08:46 PM.
03-16-2016, 08:41 PM
#65
Rennlist Member
Or Trump...
03-17-2016, 07:23 AM
#67
Addict
Rennlist Member
Rennlist Member
03-17-2016, 03:59 PM
#70
Rennlist Member
03-17-2016, 04:51 PM
#72
Official Bay Area Patriot
Fuse 24 Assassin
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Fuse 24 Assassin
Rennlist Member
03-17-2016, 06:41 PM
#73
Rennlist Member
Don't cha mean 'Murica BillyBob....think your sight may be a little obscured by the sheet over your head. Cut the eye holes larger.... ;-)
03-17-2016, 07:29 PM
#74
Official Bay Area Patriot
Fuse 24 Assassin
Rennlist Member
Fuse 24 Assassin
Rennlist Member
Are you alluding to me as KKK? This is the funny thing about most foreigners. You really don't know jacksh*t about who Americans are. Newsflash...I am not 100% white, or Aryan like you assume. Just like you assume that LS-swapped cars are crap. Get your head out of the sand...dingos will bite your *** when you are un-attentative.
