PSD/Diff into S2
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Three Wheelin'
Joined: Jun 2005
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From: Bournemouth, Dorset, UK.
PSD/Diff into S2
Hi All 
I am going to fit a PSD/Diff UNIT from a 94 GTS into my 16 Valve S2....
Can anyone tell me for definite whether the PSD/Diff will have a 2.2 ratio ???
All the best Brett
I am going to fit a PSD/Diff UNIT from a 94 GTS into my 16 Valve S2....
Can anyone tell me for definite whether the PSD/Diff will have a 2.2 ratio ???
All the best Brett
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From: theporscheconnection.com
No its NOT a 2.2
if its an auto then its a 2.53
I have to ask WHY? you cant run the PSD diff effectively without the PSD electronic components which would be silly to retrofit into an early car.
if its an auto then its a 2.53
I have to ask WHY? you cant run the PSD diff effectively without the PSD electronic components which would be silly to retrofit into an early car.
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You must be new here.
You don't specify if the unit is from an auto or 5-speed GTS. They are different.
Try this site for all model year specifications:
www.928registry.org
You don't specify if the unit is from an auto or 5-speed GTS. They are different.
Try this site for all model year specifications:
www.928registry.org
Thread Starter
Three Wheelin'
Joined: Jun 2005
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From: Bournemouth, Dorset, UK.
Yes you can, but it then becomes manually adjustable...no pump etc....
All the best Brett
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Three Wheelin'
Joined: Jun 2005
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From: Bournemouth, Dorset, UK.
You must be new here.
You don't specify if the unit is from an auto or 5-speed GTS. They are different.
Try this site for all model year specifications:
www.928registry.org
You don't specify if the unit is from an auto or 5-speed GTS. They are different.
Try this site for all model year specifications:
www.928registry.org
Hi
Sorry I forgot to say that mine is an Auto with a 2.35 (Non LSD) at the moment......thanks for that link ...the 94 GTS Auto had a 2.54....( I was hoping it was a 2.2)
Have to think about top speed differences now....
All the best Brett
Thread Starter
Three Wheelin'
Joined: Jun 2005
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From: Bournemouth, Dorset, UK.
I might HAVE to...as if I run the 2.54 diff instead of my 2.35 , I would lose 18 mph from my top speed at 7000 revs
If I run the 2.2 ...I GAIN 16 mph at 7000....
All the best Brett
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Brett,
I don't think I've got enough horsepower to get over 6,000 rpm, but that should be fast enough
for the roads I'm on, and that's a lot faster then I could go with the 2.54.
Good luck with your quest.
I don't think I've got enough horsepower to get over 6,000 rpm, but that should be fast enough
for the roads I'm on, and that's a lot faster then I could go with the 2.54.
Good luck with your quest.
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From: Anaheim
You might want to ask anyone if they have tried to use a PSD in a manually adjustable mode..it might save you the trouble of doing this....only to find that they don't work, very well....Mark Anderson?
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From: theporscheconnection.com
Thread Starter
Three Wheelin'
Joined: Jun 2005
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From: Bournemouth, Dorset, UK.
Hi
Well....Paul Anderson and I will be fitting it...and HE says he has done it before successfully and as hes the FOREMOST expert on 928s in the UK thats good enough for me....
It will be manually adjustable with a bolt...
All the best Brett
Well....Paul Anderson and I will be fitting it...and HE says he has done it before successfully and as hes the FOREMOST expert on 928s in the UK thats good enough for me....
It will be manually adjustable with a bolt...
All the best Brett
Last edited by Brett928S2; Mar 24, 2009 at 08:32 PM.
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At this point, I would hesitate to call it 'PSD'. The true PSD is a dynamic traction control device complete with accelerometers, wheel speed sensors, and a nice little processor to determine what needs to happen in the diff. I would say this is a LSD at best, with manual lockup adjustment.