Suffolk944
Moderator
I would certainly be interested in those details too !
I've decided to buy a 944 Turbo
- Thread starter Someguy
- Start date
I would certainly be interested in those details too !
roadiesean
New member
Thanks for all this information guys, I am also in the process of purchasing an '86 Turbo which I am beside myself with excitement about, it has an LSD but not the MO30, which given as I live on a farm with a 2 mile dirt road is no bad thing ! Watch this space, I'll drop some pics when I get it.
BTW, which was the Porsche mag that did the comparison between the 944 turbo and the 911 recently ? I'd love to get a copy.
Cheers
Sean
BTW, which was the Porsche mag that did the comparison between the 944 turbo and the 911 recently ? I'd love to get a copy.
Cheers
Sean
Without a moment's hesitation, get the high mileage car. Don't even consider buying the other one.
Rust is insidious, and once taken hold will be expensive and tedious to put right properly.
High mileage is a GOOD thing - these cars don't take well to sitting around.
And the low-mileage one didn't even start [
] ... I rest my case, M'lud.Oli.
Suffolk944
Moderator
Yep mine works as I was grateful discover on a damp and greasy road a couple of weeks ago. AFAIK its never been refurbished though whether it works as well as one that has been I have no idea.
sawood12
New member
It is not that they don't work - it is that they don't work anywhere near as well as they should. Plate type LSD's wear, they rely on compression of the plates to achieve the locking, an as they wear they become less effective. The Porsche unit only had a relatively small number of plates which meant wear rate is high meaning that when the car was new you had a 40% locking diff. Now you've probably only go a 20% locking diff or less. Testing these things on wet grass isn't really a good test - it is on grippy tarmac that tests the LSD and at which point it locks.
All plate type LSD's will need refurbing at some point (the consensus from those who are experienced and in the know with the 944turbo unit is after about 40k miles to keep it as good as it should be). Aftermarket units have more plates - and are better as they lock on decel too.
All plate type LSD's will need refurbing at some point (the consensus from those who are experienced and in the know with the 944turbo unit is after about 40k miles to keep it as good as it should be). Aftermarket units have more plates - and are better as they lock on decel too.
sawood12
New member
180k miles is alot for any component that rely's on friction to function - you'd not expect a clutch to last that long unless it had had a very easy life (the big unknown). These are consumable parts. I guess the big unknown is that you don't know how hard a life its had up until now - but guys on other forums who use their cars very hard seem to think the original Porsche unit is not that good and requires rebuilding after about 40k miles to maintain the 40% locking.
I must admit - I never missed an LSD on my car in the whole 6 years of ownership. I never found lack of grip to be a huge problem and only lost the inside rear wheel if I was pulling out of a junction (and with an LSD would have likely induced oversteer) or in wet conditions accelerating out of a roundabout and losing the inside rear wheel - again where an LSD would have likely induced oversteer. On the few trackdays I did I never felt I had to hold back on the accelerator because of the diff - maybe I was not pushing hard enough! Other than those small handful of occasions I never missed one.
I must admit - I never missed an LSD on my car in the whole 6 years of ownership. I never found lack of grip to be a huge problem and only lost the inside rear wheel if I was pulling out of a junction (and with an LSD would have likely induced oversteer) or in wet conditions accelerating out of a roundabout and losing the inside rear wheel - again where an LSD would have likely induced oversteer. On the few trackdays I did I never felt I had to hold back on the accelerator because of the diff - maybe I was not pushing hard enough! Other than those small handful of occasions I never missed one.
On the 90 cars they are not 'normal' shocks but turbo shocks without adjustment, In the handbook it claims the adjustment on the Konis are to compensate for wear and the sachs/boge are to the same rate. They are smaller diameter springs than the early turbo's as per the 968.
It was almost certainly a money saving exercise given the price of a late Turbo and the economic climate at the time.
Tony
I've always found an LSD in a rear drive car induced under-steer, due to the time it takes for the diff to return to the intial torque setting during cornering. Also you can't compare the engine clutch lifespan to a LSD clutch lifespan. But I'm with you that the 944 dosent need one, it's just nice to know you have one.
George Elliott
New member
as others have said, mileage is largely irrelevant on a used well maintained car.
I have had one open diff 944t which was good, and three LSD cars, all have over 100k miles now and all the LSDs function perfectly. The wear rate and their performance deterioration is not linear.
The LSD makes a huge difference when overtaking, the traction is vastly superior, and dont be taken in by aftermarket product which need to slip to lock (viscous plates).
As Scott says the open diff car is good due to the transaxle weight distribution and relatively soft spring rates, plus his KW suspension, but if you want to be at the races (no pun intended) you need a limited slip.
good luck with your car
George
944t
I have had one open diff 944t which was good, and three LSD cars, all have over 100k miles now and all the LSDs function perfectly. The wear rate and their performance deterioration is not linear.
The LSD makes a huge difference when overtaking, the traction is vastly superior, and dont be taken in by aftermarket product which need to slip to lock (viscous plates).
As Scott says the open diff car is good due to the transaxle weight distribution and relatively soft spring rates, plus his KW suspension, but if you want to be at the races (no pun intended) you need a limited slip.
good luck with your car
George
944t
So I took an S2(out of interest) and a turbo the 130,000 mile turbo for a spin. I was very disappointed by the turbo. It was far slower than the s2. It does need a good service (it cut out out on idle). Is it usual for them to loose this much power?
Would a service sort it out, or should I be looking elsewhere (or buying an s2)
Peter
Would a service sort it out, or should I be looking elsewhere (or buying an s2)
Peter
edh
New member
I'll bet the turbo needs some better boost management - tired wastegate etc.. Did you get any sort of kick from the turbo? It should feel much faster through the midrange than an S2.
Did you notice how much boost it was developing (on the gauge 1 is effectively zero boost as it's atmospheric pressure.)
£500-£1000 'ish will see a massive improvement, maybe less if all it needs is a boost enhancer + chip
Did you notice how much boost it was developing (on the gauge 1 is effectively zero boost as it's atmospheric pressure.)
£500-£1000 'ish will see a massive improvement, maybe less if all it needs is a boost enhancer + chip
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