944 turbos

[TISPKJ]

Hi guys, did they ever do a tiptronic version of the car
And is the 944 s2 3litre the same as the 968 ?

 

[Fat Albert]

No Tip version of the Turbo as far as I know and I think the 968 engine is similar to the S2's but with variocam (await incoming from all those un-blown-type drivers)[]

 

[pauljmcnulty]

Jeremy's correct. 968 lump just has the extra variocam, and there's no tip version of any 944. There are old-style auto boxes on the base 2.5 NA engines, the tip box came in with the 968.

 

[Neil Haughey]

...and bigger inlet valves, different manifolds, MAF, newer gen ECU, forged rods, etc. Barry Hart has commented before that the varioram doesn't actually give more power it just moves it about a bit. Its a bit of an oddity of an engine and driveline package as despite having 6 tightly packed ratios compared to the S2's 5 (albeit barely any difference in 3rd and 4th), they also came up with an engine that has an even stronger spread of power than the S2.

968 tip has very similar straightline performance to a manual S2, both took about 15 s to the ton in contempory road tests.

 

[944 man]

Yes, the 968 engine is fundamentally similar to the 3.0l, but there are fundamental differences and many detail improvements.

 

[Mike_Pollock]

Traditional type of auto is available on all N/A engines - 2.5, 2.5 19v, 2.7 and 3.0

 

[944 man]

*strokes chin*

[]

 

[pauljmcnulty]

ORIGINAL: A9XXC

Traditional type of auto is available on all N/A engines - 2.5, 2.5 19v, 2.7 and 3.0

I've never heard of an auto on an S2? Might not be very nice on an S either!

 

[Mike_Pollock]

Had a check of my manual and although it doesnt make it clear it seems to show that the 1989 Autos were ony 2.7, so my apologies!

Do know they did 2.5 and 2.7 ones !

 

[TISPKJ]

Thanks guys, so no auto 944 turbo

 

[George Elliott]

Paul,
no, thankfully.

The car was featured in, (actually started) the turbo Cup series as you may be aware, and auto transmission would have been considered inappropriate for the model.

regards
George

944t

 

[bmnelsc]

ORIGINAL: Neil Haughey

...and bigger inlet valves, different manifolds, MAF, newer gen ECU, forged rods, etc. Barry Hart has commented before that the varioram doesn't actually give more power it just moves it about a bit. Its a bit of an oddity of an engine and driveline package as despite having 6 tightly packed ratios compared to the S2's 5 (albeit barely any difference in 3rd and 4th), they also came up with an engine that has an even stronger spread of power than the S2.

968 tip has very similar straightline performance to a manual S2, both took about 15 s to the ton in contempory road tests.

...AND hydraulic timing belt tensioner - replaced the spring-loaded tensioner used on the S2....

Out of all that, I'm betting the ECU and MAF were responsible for most of the extra 28 HP although you have to think that vario cam permitted more radical cam profiles.....

 

[rcsalmons]

Variocam gives only an extra 4kW of power, its mainly there for emissions.

Crank is also 1kg lighter.

Rich

 

[os951]

Thank God 951 Tips were not available. The worst trans Porsche ever used on ½ engine models.Feels like it never finds a correct gears to match engine's RPM.
Changed "Rubber-Duck" to one Tiptronic cab last winter. Was a nasty job to do. Won't do it again []
Factory had it's odd moment when they equipped 968 Tip with 944 manual bellhousing.... But i suppose they have pleeeeeenty of 944 automatic leftover parts available when they "designed" 968 Tiptronic. It is odd same damper was used with 240hp engine, when it was designed for 163 hp. Damper is the weakest part of Tiptronics.


Have you checked your "Rubber-Duck" lately? I suppose most of you will find signs, which eventually leads to this:

AND hydraulic timing belt tensioner - replaced the spring-loaded tensioner used on the S2....

This tiny little thing is actually really good. A small cylinder filled with some kind of fluid and a spring. Japanese make nice parts []

Pretensioning Aisin made "hydraulic" tensioner

Traditional type of auto is available on all N/A engines - 2.5, 2.5 19v, 2.7 and 3.0

Just 8V 2,5 & 2,7 had autotrans available. Last model year 8V 2,7L was just a "savings model". Porsche spared some money when all N/A models shared the same 104mm bore block. They just had to make small change to cylinder head's front left corner.

Here's a factory new 2,7L head. Have several of them in my garage []

It's quite easy to modify a 2,5L head for a 104mm bore block

Here's what happens when you try to install either 2,7L or S2 head to 100mm bore block

 

[Neil Haughey]

I had the rubber damper replaced on ours, annoying thing is it had only done about 50k miles on the last one and its a very expensive job. It definitely is the weak point in tiptronics. The box itself though which is surely better suited to an 80's MB seems to be pretty well bullet proof.

 

[os951]

Damper i changed had about 100Kkm's behind it. Looks like mileage is not the only factor which worns out the damper. I suppose time is a key factor as well.

 

[944 man]

Is it the same cush drive that was used on the series two 944 automatic (and I cant remember whether the earlier series one AUDI 200 transmissioned auto used the same part)?


Simon

 

[os951]

968 Tiptronic uses manual 944 bellhousing just like 944 automatics. There are even places for clutch fork and slave cylinder, holes are just plugged with plastic caps. Torque tube is different because Tiptronic have different attachment to torque tube. Unfortunately all parts inside bellhousing are directly taken from 944 automatics. Damper just cannot hold more hp / torque 968 engine offers. If i remember correctly 944 autotrans was made by VW/Audi, 968 Tip-trans is made by ZF and can be found under several time period German made cars, like MB. Little bit the same like 928 auto's which shared transmission with certain MB models