I'm not really ready for an engine swap yet but I'm wondering if the "S" motor is an easy swap into an 83?

seems like it would be..I've searched the forums but havn't come up with any swap info other than 951, 968 and small block swaps.

I'm assuming the basic installation is a snap, but what about the clutch, tube, throttle linkages etc.?

I'm thinking the hardest part would be the DME intergration?

ANy articles out there on a swap like this?

Thanks

 

I don't think there's much info on this as its really not a great engine to swap in. You loose alittle power down low and gain alittle power up top. If you're going to do all the work of an engine swap, it might as well be a 951 or 968 engine.

 

Hmmm.. I've driven an S before and I thought the pull up to redline was really good.

I hadn't given the 968 motor much thought. I just assumed there would be a whole lot more to consider due to the even newer electronics etc. (and the added cost between a good used 944s motor and a 968 motor)

<img src="graemlins/beerchug.gif" border="0" alt="[cheers]" />

 

I installed a 87 924S motor in an 84 944.

I was simple. I did an entire DME harness swap since the 84 and 87 motor came with different controlers and different plugs on the DME.

The DME harness is not part of the main electrical harness so it should be easy to change out with the engine swap. Also you will need to do some fiddling to get the tach to work since the plug is part of the DME harness and connect to the main engine harness which routes the signal to the tach. Not a big deal though.

 

Was the S car truely that much faster than yours though? I honestly haven't driven one, but looking at numbers and reading peoples thoughts on the board seem to indicate that it not a hugely better engine. If you felt it was, maybe something's wrong with your 944?

The 968 engine is a cool idea. There's a guy on the board that preformed the swap and if I recall correctly he was insanely happy with the results. The 968 motor would be great in an early car due to the lighter weight. I'm not entirely sure of the details of the swap, but if you did a search I'm sure you'd come up with some good info.

 

M758..

What are your impressions after the installation? Did the car feel stronger? and were there any drawbacks to doing it?

Was it as straightforward as I'm imagining it would be or were there clutch issues, motor mount issues or anything that was an extra cost you hadn't planned on?

I guess what I'm asking is this.. Did it put a smile on your face the first time you drove it hard or was it like..hmmm, that's OK I guess~

Thanks
<img src="graemlins/burnout.gif" border="0" alt="[burnout]" />

 

About the 968 engine into early 944.. you need to check out the web page those guys have:

<a href="http://www.diateam.no/porsche/" target="_blank">http://www.diateam.no/porsche/</a>

One of my favourite bookmarks!
<img src="graemlins/beerchug.gif" border="0" alt="[cheers]" />

 

Possible but not practical.

For the costs just get the 84 engine punched out, possibly stroked, chip the DME, put a MAS and K&N filter on it and decent headers.

The basic blocks can be mounted in all the 944's and later models chassis. Some exceptions with which heads fit which blocks and the temp sensor for the guage.

I would also put a closer ratio trans in with the bored and stroked engine.

There are at least three "flavors" of DME's; early 944's, late 944's and the 944S, 944S2 and possibly the fourth variation with the 968. You can keep the 84's existing engine wiring harness and DME.

Later model DME's use the motor driven idle regulator while the early one's have the heated element type. The motor driven is a better design as it's interactive with the DME. The heated one works also.

The DME's for the 16 valves are completely different. All of the injectors fire four times per cycle unlike the twice per cycle for the 8 valves. The speed sensor is combined with the reference mark sensor so there is only one sensor looking at the flywheel. There are two knock sensors and a hall effect that looks at a reference on the back of the cam gear to tell the DME which cylinder is at TDC. Also uses a single "motor" idle control valve.

 

[quote]Originally posted by Sami944S:
<strong>About the 968 engine into early 944.. you need to check out the web page those guys have:

<a href="http://www.diateam.no/porsche/" target="_blank">http://www.diateam.no/porsche/</a>

One of my favourite bookmarks!
<img src="graemlins/beerchug.gif" border="0" alt="[cheers]" /> </strong><hr></blockquote>


This fellow had to get around his country's socialist taxing pollicy. And he has plenty of $$$ to do so.

"The Norwegian government's tax policy is based on the car's performance and age, this makes a new car as much as twice or even some times triple as expensive as it would be in the United States or Germany. But you get a discount if the car is used, the older it is the cheaper it (taxes) gets. Upgrading car's that are already imported and registered is not affected by the taxes along as it is a pre 1996 model."

 

Yes, but it still kinda proves that it's do-able. And, if you have the necessary donor cars and you do your own work, it shouldn't be that expensive either...

 

How much would a 968 engine, and I guess tranny too, cost? Not that I have anywhere near the funds to do it, just something to consider in the future.

 

[quote]Originally posted by turbokev:
<strong>M758..

What are your impressions after the installation? Did the car feel stronger? and were there any drawbacks to doing it?

Was it as straightforward as I'm imagining it would be or were there clutch issues, motor mount issues or anything that was an extra cost you hadn't planned on?

I guess what I'm asking is this.. Did it put a smile on your face the first time you drove it hard or was it like..hmmm, that's OK I guess~

Thanks
<img src="graemlins/burnout.gif" border="0" alt="[burnout]" /> </strong><hr></blockquote>

For me it was straight forward since the early 944 and the 924S are very similar. Did it because I had a 45k mile 924S that had been wrecked and I knew the motor was still good. I went out and found a tired 84 944 with coolant & oil mixing in the motor for cheap. Tried to run the motor and it did work so I replaced it with 924S motor rather than bother fixing an old motor. It makes the same power as an 87 944 and about the same as the 84 motor I took out. I did have mess around with fuel lines since the come in to the motor in a different place in the early vs late cars.

 

Ahhh.. now I understand. You used a 8V 924S motor, not a 16V 944S motor.

Good info everyone..

Thanks for that great 968 swap site.. It'll never happen for me though, I'd just buy a 968 before I went through all that swapout hassle

Looks like freshening up the motor and doing the basic mods makes the most sense.. well, someday when it needs it I'll decide what to do. For now, I'm enjoying my 'stock' ride~

 

The S engine is great fun, but if you're going to go to all that trouble you should go for the S2 mill. More HP, a LOT more torque. That's what I'll likely do to my S if/when my top end grenades.

 

[quote]Originally posted by Sami944S:
<strong>Yes, but it still kinda proves that it's do-able. And, if you have the necessary donor cars and you do your own work, it shouldn't be that expensive either...</strong><hr></blockquote>

Never said it wasn't doable, just not practical because here in the states we can buy 944's, 951's in good running condition for considerably less than it takes to swap everything. We don't have too oppressive a socialist government -- yet.

Now if I had a lot of 944/951/924S/968 parts cars laying around and all the time and little money I just might piece something together.

Still for the investment a N/A bored and stroked 8 valve will give you the same performance as the 944S with out the hassle of the dual o-head cams.

Still, it's your money and your time enjoy it while you can!