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Aftermarket turbo/supercharger mod for a 944 possible?

So i found this diamond of a 944 from an online car sales site:27000 miles driven 2.7 and in a perfect condition,good as new.BUT its the automatic version of the car with only 3 gears so i figured i would need more low rpm torque to it if i would buy it.So is it possible to install an aftermarket low rpm turbo to it?Or a supercharger?Been searching for answers 3 days and not finding any good ones.And i don´t need too much more power,i would like to get something like +40% torque and %10 power to the low rpms to improve acceleration.And the turbo/supercharger should mainly boost the rpms under 4000 so it should be safe to the gearbox?Didn´t find any info from the gearbox either...

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Porsche 911 3.2 G50 1987

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Old 05-15-2014, 12:36 AM
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Since its a 2.7, that could be the 944S 16V engine. Luckily there are kits for the S and S2 engines:

928 Motorsports - Porsche® Performance Parts - Mods for 944 S2 Install

928 Motorsports - Porsche® 928 Performance Parts - Porsche® 968 STAGE 1 SUPERCHARGER KIT

928 Motorsports - Porsche® 928 Performance Parts - PORSCHE® 968 Stage 2 SUPERCHARGER KIT

Otherwise for a 8-valve engine its certainly possible to go your own route, but you'd have to build it from scratch by adapting a turbo or supercharger to the engine by fabricating an exhaust manifold or factory 951 parts (turbo) or brackets and pulleys (supercharger). Either way the ECU would need to be replaced (MegaSquirt) or reprogrammed (chip swap).

A 5-speed swap might be slightly easier, but I'd drive it first before planning on a bunch of changes.
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Old 05-15-2014, 05:09 AM
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the automatic in that car is not up to handling much more torque.

that particular supercharger kit, and the fact that it would not work properly on the 968 (proven countless times by those who have tried) is exactly why i finally went forward with mine. i do see that he has now incorporated a number of my design features though, to try to make it work better.

unfortunately i do not make a kit for the 944 as yet. the mounting and all that is essentially the same, so it could be done, but the tuning would be entirely different. as yet, nobody has wanted to pony up for a kit on a 944. if somebody wanted to tune it themself, they could probably you could get the mounting kit and have at it.

Last edited by flash968; 05-15-2014 at 06:30 AM..
Old 05-15-2014, 06:24 AM
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The automatic is VW-based and is capable of being modified to make it better:

924Board.org :: View topic - Auto tranny hot up thread
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Stefan
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Old 05-15-2014, 06:39 AM
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from what i understand, it still has the flex dampener, which is the weak point. we have that issue on the 968, even in stock trim. that is why i did not want to develop a kit for the tiptronic. i have one out there being tested right now, on a new flex dampener. even at stage 1 though (275hp) you can feel that it isn't terribly happy. not sure how long it will hold up to the beating of rapid gear shifts from stomping on the gas pedal.
Old 05-15-2014, 06:47 AM
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replace the damper with a clutch disc. This is also a documented modification to replace broken or failed units.
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Old 05-15-2014, 06:59 AM
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+1 on just doing a 5-speed swap. I bet you can pick up a NA trans for $150
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Old 05-15-2014, 07:06 AM
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...almost there.
Old 05-15-2014, 07:20 AM
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Quote:
Originally Posted by fiat22turbo View Post
Since its a 2.7, that could be the 944S 16V engine. Luckily there are kits for the S and S2 engines:
.
there was never a factory 2.7 16v car...
Old 05-15-2014, 07:20 AM
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4Cyl direct port, wet shot, nitrous oxide can now be had for well under $900.
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Old 05-15-2014, 09:16 AM
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Quote:
Originally Posted by fiat22turbo View Post
Since its a 2.7, that could be the 944S 16V engine. Luckily there are kits for the S and S2 engines:

Otherwise for a 8-valve engine its certainly possible to go your own route, but you'd have to build it from scratch by adapting a turbo or supercharger to the engine by fabricating an exhaust manifold or factory 951 parts (turbo) or brackets and pulleys (supercharger). Either way the ECU would need to be replaced (MegaSquirt) or reprogrammed (chip swap).

A 5-speed swap might be slightly easier, but I'd drive it first before planning on a bunch of changes.
Its a 1990 2.7 8 valve.165hp.And all those parts sound expensive,and the modding process sounds so complicated.I am not a mechanic myself so maybe i just have to settle to a sports exhaust and a chip.Didn´t find any chips either for this car.Does it have the programming port or do i have to buy a new chip?And i´m not sure if anyone even makes chips for the auto-transmission...
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Old 05-15-2014, 10:50 AM
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ZEX Nitrous Oxide 50 200HP 4CYL EFI Polished Direct Port Nitrous Kit 82030P | eBay

I suggest this with tongue in cheek but I'm half way serious.
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“Of the value traps, the most widespread and pernicious is value rigidity. This is an inability to revalue what one sees because of commitment to previous values. In motorcycle maintenance, you MUST rediscover what you do as you go. Rigid values makes this impossible.”
― Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance: An Inquiry Into Values
Old 05-15-2014, 11:04 AM
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Old 05-15-2014, 12:21 PM
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cheaper to go LS...
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Old 05-15-2014, 12:40 PM
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...not in Finland.
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“Of the value traps, the most widespread and pernicious is value rigidity. This is an inability to revalue what one sees because of commitment to previous values. In motorcycle maintenance, you MUST rediscover what you do as you go. Rigid values makes this impossible.”
― Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance: An Inquiry Into Values
Old 05-15-2014, 12:41 PM
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^^ that sucks.

How much fab can you do?
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Old 05-15-2014, 01:12 PM
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cheaper to go LS...
not even close.
my supercharger setup costs around $2k for everything.
you could swap the car to factory 951 stuff for less than that too.
Old 05-15-2014, 01:40 PM
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It's funny: 10 years ago, if someone posted on this site with a turbocharging/supercharging/"getting more power from a NA" thread, the default response was always "you're better off just buying a 951". I wonder to what to attribute the sea-change shift in philosophy?
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Old 05-15-2014, 01:57 PM
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Quote:
Originally Posted by CJFusco View Post
It's funny: 10 years ago, if someone posted on this site with a turbocharging/supercharging/"getting more power from a NA" thread, the default response was always "you're better off just buying a 951". I wonder to what to attribute the sea-change shift in philosophy?
Turbos are more used up and people are more adventurous because the cars are cheaper now.
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Old 05-15-2014, 02:28 PM
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Quote:
Originally Posted by CJFusco View Post
It's funny: 10 years ago, if someone posted on this site with a turbocharging/supercharging/"getting more power from a NA" thread, the default response was always "you're better off just buying a 951". I wonder to what to attribute the sea-change shift in philosophy?
because they were stuck on the idea that turbo suspension and brakes were entirely necessary on a car with more than 190HP...which added cost and complexity to a swap.

this has proven to not be the case, though not a bad idea.

considering everything bolts on to the non-turbo bodies, why not?

Old 05-15-2014, 02:39 PM
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