Looking for 968 engine
- Thread starter colin944
- Start date
Chrishazle
Active member
Hope you've got deep pockets, there's only one on eBay ATM, £3300!
https://www.ebay.co.uk/it...923:g:qv4AAOSwh9hZ5xoF
I'd also suggest that you ask on the porsche 968uk forum, there are a few members on there that have a few spares, you might get lucky!
https://www.ebay.co.uk/it...923:g:qv4AAOSwh9hZ5xoF
I'd also suggest that you ask on the porsche 968uk forum, there are a few members on there that have a few spares, you might get lucky!
There is someone on the 968 enthusiastics Facebook group breaking a 968, says the block is sold but lots of other engine parts are still available.
It‘s a closed group but can find and send you the link if you want ?
I can also post something on 968uk and connect you if anyone has anything suitable.
ian
It‘s a closed group but can find and send you the link if you want ?
I can also post something on 968uk and connect you if anyone has anything suitable.
ian
924Srr27l
New member
colin944 said:
Yes, that's what I was thinking…..
The amount of things you'd need for the 968 engine even if you found an engine for £2000 you'd need the exhaust system, ECU etc...
Rebuild your spare S2, still won't be cheap done properly but if you do it properly you'll have a strong motor.
Is the application for track days, or just road use?
R
Just to make you feel better... I have fitted my S2 with a 968 engine. Yes the numbers on a stop-watch say it is slightly quicker... It's not so much fun to drive though. Would I do it again? Never. Will I change it back. One day... But it is fun having a 948 at the moment. What I would do us see if I could fit a 968 inlet manifold onto the S2 engine...
IIt just doesn't "feel" as quick... A bit like boost on a '44 Turbo, you feel an upscale in power delivery at about 4k rpm on the S2 engine. The 968 feels much more linear. The 968 pulls much harder at lower revs (torque, and I have been told this is primarily down to differences in the inlet manifold, which is why I would see if it is possible to just xhange that), but overall, I find it just not so engaging? No doubt about it, the 968 engine is more efficient, and more effective in every way*, but in my humble opinion, it has lost some of its soul along the way.
*on a personal test track the car it is in was 2 (109 down to 107) seconds quicker on the first run than the best ever S2 engine time. The S2 engine had previously been dynoed, and was putting out full factory power.
*on a personal test track the car it is in was 2 (109 down to 107) seconds quicker on the first run than the best ever S2 engine time. The S2 engine had previously been dynoed, and was putting out full factory power.
924Srr27l
New member
tref said:
Did you fit the full 968 Exhaust system? the variable valve timing head is where the difference is (more torque lower down the rpm, same twin cam characteristics higher rpm)
I think the cylinder head ports may be different also, the extra 30bhp was all achieved from better efficiency, VVT and breathing.
Did you also fit the 6 speed Gearbox?
Just fitting a 968 inlet manifold to a 944 s2 wont do anything.
R
Custom exhaust system (a quiet understated one - it is a daily driver), and no, not using a six speed box... There is nothing wrong with the 968 engine, and I am pretty convinced it is working well, but, for me, I just don't enjoy it so much. But then I went to an awful lot of trouble fitting power steering to an early car once and wished I hadn't bothered. I still prefer the feel through a non-power steered 944. The inlet manifold thing is just a hunch (and collected thoughts of others along the way)...and I am not for one minute suggesting that 29 bhps and all the torque is in the inlet manifold and everything else maked up the other 1hp, but Porsche obviously went to a lot of trouble, so they thought it was worthwhile, and it is probably available at a reasonable price from an otherwise scrap engine somewhere.
924Srr27l
New member
tref said:
I think this is why you've not seen the change as dramatic or big enough as you'd hoped.
The differences for the 3.0 VVT 968 compared to 944 S2 are not just the obvious 29bhp on paper, but also the whole combination of the 6th speed gearbox / different final drive ratio
/ Variable valve timing cylinder head / inlet plenum / twin pipe exhaust system & Mapping etc...
If your custom exhaust is a single pipe 2.5" bore? this will create a slower gas velocity than the twin pipe 968 system which yes will be silenced more? but the exhaust bores and lengths just like the
gearbox 6 ratios and FDR are all tuned to make a difference on what was potentially going to be called a 944 S3
Low RPM grunt and pull is usually felt a lot more which is why I went for a 2.7 litre engine (3.0 block) with the smaller 2.5 head (8 valves) a large cylinder bore @ (677cc) and a short stroke (2.5 crank)
with a weight reduction of 9kg of spinning parts (Crank / rods / pistons / flywheel) + a Smaller than stock single exhaust pipe and only (1) silencer....
Do a double whammy and lighten the car by 250kg and you've then got a 200bhp per ton N/A transaxle, you'd like this drive I'm sure!
R
"Do a double whammy and lighten the car by 250kg and you've then got a 200bhp per ton N/A transaxle, you'd like this drive I'm sure!"
You obviously don't know me or Bomber!?
My car has a towbar and runs on LPG! As I say, the engine is, I am sure, running pretty damn close to as good as it should. It's not about ultimate power or speed or even torque... Just purely driving pleasure. In a car I can drive every day. To me that means Air-con for demisting on winter mornings, heated seats because I like leather, something easy to drive because I frequently end up covering monsterous mileages often when I am tired late at night, but, still be a bit of fun to drive on the rare occasions I find a smooth piece of tarmac and no-one else is around.
In stock form, so far, I think the standard S2 engine is the best compromise. I am lucky enough to have access to a range of transaxle cars, so have something light and nimble for B-roads, a turbo because although it isn't the quickest, it feels like it is and it is fun...but these are really more focused than good all-round... Over the years I have driven pretty much all of them on a daily basis at one point or another too so I know what they are like to live with.
So I guess I should perhaps have qualified my original comments in terms of use, and where the focus is in terms of use of the 968 engine over the S2. For me, I would say it is a poor return on investment.
You obviously don't know me or Bomber!?
My car has a towbar and runs on LPG! As I say, the engine is, I am sure, running pretty damn close to as good as it should. It's not about ultimate power or speed or even torque... Just purely driving pleasure. In a car I can drive every day. To me that means Air-con for demisting on winter mornings, heated seats because I like leather, something easy to drive because I frequently end up covering monsterous mileages often when I am tired late at night, but, still be a bit of fun to drive on the rare occasions I find a smooth piece of tarmac and no-one else is around.
In stock form, so far, I think the standard S2 engine is the best compromise. I am lucky enough to have access to a range of transaxle cars, so have something light and nimble for B-roads, a turbo because although it isn't the quickest, it feels like it is and it is fun...but these are really more focused than good all-round... Over the years I have driven pretty much all of them on a daily basis at one point or another too so I know what they are like to live with.
So I guess I should perhaps have qualified my original comments in terms of use, and where the focus is in terms of use of the 968 engine over the S2. For me, I would say it is a poor return on investment.
924Srr27l
New member
tref said:
Yes , your application is a very different criteria to 99% that would go to the efforts of fitting a 968 engine to a 944
The norm would be for more power and not comfort as such...
I think a fully loaded S2 or turbo (Leather aircon etc..and 17" wheels etc.) must be knocking on the door of 1400kg, so not quite what I'd call a light B roader but car's in general have all
got so heavy. I drove a friends V10 twin turbo RS6 thing a few years ago which could be seen as a comfy bus ! but @ 2360kg the 570bhp Lambo engine didn't really go as well as it could do!
R
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