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Which engines can be dropped in an '88 924S?

I found my old fixer up back again. I bought this car 2 years ago and was going to fix it. I moved on and sold it to a local who was going to do the same. Since then I see how hard it is to find a nice '88 924S and wished I could get it back. The kid moved away for school to Michigan so I wasn't reaching him until Friday when I got hold of him here. So longer story shorter I am going to buy it back from him tomorrow..

It's an '88 924S that had a blown head. Will get extent of damage report tomorrow night. It may end up getting repaired but if it turns out to be a better option for me (when the time comes), I am looking to find out which other engines can be dropped in or safely / easily fitted with instead.

Depending on when I can get to this budget may or may not be the issue.
This is a link from wiki pedia of Porsche engines.
https://en.wikipedia.org/wiki/List_of_Porsche_engines

I guess aside form the obvious 88 924S engine, looks like maybe I can look for most 944 engines. Is that right?

If the car can hold it and handle an upgrade it would be nice to be able to put in a 2.7 or a 3.0 944 .

Thanks. Will update in a day or so.
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1988 Porsche 924S - On the road again after 3+ years.

Dodge GC ES 278,xxx and counting.

Last edited by Austin87; 08-07-2016 at 10:54 AM..
Old 08-07-2016, 10:52 AM
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Any 1982-1987 944 2.5 engine will be a plug-and-play replacement.
You can put the 1989 2.7L in your car as well and even run it on the standard 88 DME, just remember to put premium gas in it.

2.5 16v or 3.0 S2/968 is doable but more work (wiring changes).

Bang for the buck would be the 2.7 with the 1985.5-1987 camshaft installed.
Old 08-07-2016, 01:07 PM
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Quote:
Originally Posted by v2rocket_aka944 View Post
Any 1982-1987 944 2.5 engine will be a plug-and-play replacement.
You can put the 1989 2.7L in your car as well and even run it on the standard 88 DME, just remember to put premium gas in it.

2.5 16v or 3.0 S2/968 is doable but more work (wiring changes).

Bang for the buck would be the 2.7 with the 1985.5-1987 camshaft installed.
Hi V2..;

Thanks . * So do I understnad to use the 944's 2.7 from an '89 I would have to replace the camshaft of an '89 944 with one from another 85.5 - 87 engine?

I understand,.. but why is that necessary?
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1988 Porsche 924S - On the road again after 3+ years.

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Old 08-07-2016, 05:59 PM
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968 engine would be so awesome!!!
Old 08-07-2016, 08:36 PM
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You don't NEED to change the cam - the 1989 cam will be fine.
But "rumor has it" that the 1989 cam was more mild than the 1985-1988 cam, so by putting the earlier cam in the big engine you "might" get a little performance bump.
Old 08-08-2016, 04:34 AM
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Honestly if you want a faster car buy a faster car that runs and part this one out, or toss a 2,5L 8v long block in it and sell it or drive it. It is not worth it to do an upgrade if your time is worth anything. Resale is a big factor, some people say they will never sell their modded car but that is so rarely true, they get the bug for more power and to mod up something else.
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Old 08-08-2016, 08:16 AM
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Quote:
Originally Posted by The Guy with a Blown 968 View Post
It is not worth it to do an upgrade if your time is worth anything.
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Old 08-08-2016, 08:58 AM
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Beg to differ, I was able to tweak and tune my early na to 2.7 power/torque output and the difference is incredible. Runs so much harder/ better than stock.

That said I reread the original post, fixing the head and running the existing engine should be enough.
Old 08-08-2016, 10:37 AM
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Quote:
Originally Posted by Rasta Monsta View Post
My sig does not say blown 8v 2,5 924S.

A blower is a bolt-on power adder and can often add 50% HP. Tons less labor and tons more power than an engine swap that is going to meaningfully add power to a 924S.

There are no good IMO blower solutions for an 8v 944 and furthermore there is little point in upgrading the lowest-performance option when there are Turbo and 16v 3.0L 944 cars all put together and running and you can just go buy one. If *that* isn't enough for you and you still want to run that chassis then you get into modding from there.

If you are spending a lot of time and money and in the end you'd still get walked by a stock S2 and you'd still wish you had the S2 or turbo body and chassis... then I think you should not have undertaken the mission.
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Old 08-08-2016, 11:57 AM
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Point taken, but not everyone prefers the bulbous 80s polypropylene stew that is the 944.

I also think you're overstating the complexity of the swap. It's 100% nuts and bolts, aside from some fairly simple wiring.
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Old 08-08-2016, 01:13 PM
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You money guys just kill me! Is it worth it? Can you get your money back on resale?
Of course it's not "worth it"! What 30 year old car is? Very few.
This is a hobby to me not a business. If I lay awake at night worrying about whether or not I will get my money back out of my 944, I shouldn't have ever bought it. My ego is writing checks that my budget can't cash!
Can you get better performance with less money? Absolutely! Any number of modern cars will give you that. Go buy one and leave these lovely old ladies to those of us that appreciate them for more than their supposed worth in hard dollars!

Sorry if I have offended anyone with my rant but good grief guys what do you enjoy more? Cars or money? Pick one and run with it.
Old 08-08-2016, 04:26 PM
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When ready, I have parts or 2.5,2.7NA, or 3.0 complete and ready. In the end always do what will make you happy...unless it is illegal then I'd think about it first
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Old 08-08-2016, 04:57 PM
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It's not so much money as it is value. Spending more to have less. Throwing time into a project that is not going to ultimately satisfy. If your goal is really to have a personalized, upgraded 924S then great. If instead you want a car like a 924S but with more power and possibly other upgrades, maybe that car is an S2. Usually this conversation starts with a really unrealistic idea of how much time effort and money is involved in an engine swap to get partway to the power goal.

Getting killed on the resale is something people are not usually realistic about either. Or killed on the insurance if your project car catches fire or is tboned. These are real factors, there is no reason to be delusional about it.

It's far better to really understand your goal and then look at how to get there. If you are genuinely passionate about it and not delusional great build whatever car you want. I just think people start into swaps and turbo conversions because they are woefully uninformed and unrealistic, not because they are passionate about the swap. If they knew they could set their car on fire and buy the car they wanted and STILL come out ahead they'd do that (or maybe sell or part out their car).
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Old 08-08-2016, 06:00 PM
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I am surprised no one has considered the OP's car is a 1988 924S.
Somewhat rare with only world-wide production of 4193, and 2190 for US. Last production year.

The '88 924S engine is slightly higher compression than the previous 924S and further back 944 engines, with the main differences in the DME and the pistons, with a 10.2:1 compression ratio, producing 160 bhp.

In my opinion, keep the engine. Find another head, if that's what it needs, and just do what needs to be done to get it running.

Forget about hot-rodding it, and enjoy it as it is, a somewhat rare classic Porsche.
Buy an S2 or Turbo when the time comes.

Last edited by Pauld_94S2; 08-12-2016 at 02:56 PM..
Old 08-08-2016, 07:02 PM
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OP here. Somewhat of an update as I went see the car tonight. I didn't have time to bring it home since we talked for a while and it was pouring rain.

I didn't know this or remember it but the "kid" I sold it to was an automotive mechanic student. He's now working as a diesel truck mechanic for the summer and then going back to school. He took the head off and had it machined so I have that done.. Also have a new unistalled timing belt and water pump coming with the car.
It will need 2 new lifters but the other 6 look fine. The headgasket was blown when he took the head off. The cause of the overheat was a PO taking it to someone who didn't put the lower radiator hose on properly and it popped off while the original guy I bougth it from the first time was driving home. About a 10-15 min drive at 30mph I am told.

So the "kid" also took the car over to Gulfstream Automotive which is a well known Porsche shoppe in Pompano here and he says the bottom end is fine but recommended new oil cooler gaskets. There was alot of water on the bottom of the engine but the way the were built (bulletproof) I should be fine.

Taking this all to be accurate, this looks for sure like a rebuild. Need new headgasket; new oil cooler gaskets set, 2 new lifters, and have the head put back on (with new head bolts). The radiator is like new. * I was not necessarily looking for more HP but if I was going to replace the engine, it was a thought. With my 87 924S I was quite happy with the 147 hp. To me I love the look of a 924S, and how they handle and maneuver around any other car on the road when they are running right.

So this is what I know and what I have to get done. I've never put an engine back together or took one apart so not sure whether or not I will be doing this myself. I do have a good indie mechanic I trust with this car when needed.

Other work I know of is putting back the exhaust manifold and back up to where the muffler was.....I will need a new muffler and some pipe on the end. Maybe new brakes after the muffler and a good cleaning.

I appreciate getting all the responses above. Tomorrow night AAA will bring my baby back home, again.
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Last edited by Austin87; 08-08-2016 at 08:28 PM..
Old 08-08-2016, 07:32 PM
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Quote:
Originally Posted by Pauld_94S2 View Post
I am surprised no one has considered the OP's car is a 1988 924S.
Somewhat rare with only world-wide production of 4193, and 2190 for US. Last production year.

The '88 924S engine is slightly higher compression that the previous 924S and further back 944 engines, with the main differences in the DME and the pistons, with a 10.2:1 compression ratio, producing 160 bhp.

In my opinion, keep the engine. Find another head, if that's what it needs, and just do what needs to be done to get it running.

Forget about hot-rodding it, and enjoy it as it is, a somewhat rare classic Porsche.
Buy an S2 or Turbo when the time comes.
A+ reply!!

J_AZ
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Old 08-09-2016, 04:27 AM
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I met a gentleman at this year's parade from CA who dropped a 968 motor in a 924. A full article was published on how he did the upgrade in his PCA region newsletter. I don't have his name but I bet you could find it. He was very pleased with the end result.
Old 08-09-2016, 05:30 AM
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Originally Posted by John_AZ View Post
A+ reply!!

J_AZ
The head is good now. Thanks I agree.
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1988 Porsche 924S - On the road again after 3+ years.

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Old 08-09-2016, 06:11 AM
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http://www.924board.org/viewtopic.php?t=36902

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» 1980 931 - Got boost? ♦ 1987 924S - Pro44 ♦ 1987 924S - Junkyard score «

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Old 08-09-2016, 07:24 AM
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If the head gasket was leaking bad enough to fill the oil pan with fluid, you really should consider replacing the rod bearings. Hate to see you get it running then spin one of them and have to start all over...
Old 08-09-2016, 08:16 AM
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