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ThomasJoseph315 · Guest

Would that bolt in to an early 924 like mine? I found a complete 928 for $500 and wouldn't mind swapping the engines if it would fit.

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

It will physically fit in the engine bay (the engine bay is slightly larger in the 924/944 than the 928's). Not sure about mounts, wiring, controls, etc.

I don't know about the torque tube mating to the 928 bellhousing since the 928's have their clutch in the back with the transaxle let alone have room for the clutch and parts.

Also, the 928 motor isn't known for reliability or power (in stock, early form)

I'd look at an Audi V8:

http://944hybrids.forumotion.com/t2002-944-audi-v8

http://944hybrids.forumotion.com/t2355-posche-924-audi-42-v8-abz

Or an Audi I5:

http://944hybrids.forumotion.com/t1348-first-audi-20vt-converision-in-usa-is-done
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

Khal · Posted: Sat Apr 05, 2014 3:53 am Post subject:

There's an Engine Transplants forum...

...and with a quick search, apparently it's been done at least once.
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'80 924 Turbo

9xx · Joined: 18 Jun 2006 Posts: 627 Location: Jarvenpaa, Finland

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

9xx · Joined: 18 Jun 2006 Posts: 627 Location: Jarvenpaa, Finland

Yes you have a point there but in my opinion it is not the engine but the automatic gearbox where things starts to go wrong. 928 with manual gearbox is quite quick even with 240hp, let alone with +300hp versions. Of course the Audi V8 is not bad either.
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Mikko

All gone: 931 '82 Alpine White, original option "220" G31 with LSD + 3 x 944

Horizonblue · Posted: Sat Apr 05, 2014 6:35 am Post subject:

I haven't done a 924-928 V8 swap, but I'm pretty sure you would have to fabricate a lot of special bits and pieces to make the 928 engine fit in the original 924 bay. And off course ditch the brake booster and install hydro boost.

Even though my straight six engine could bolt right onto the bell housing, I still needed to fabricate some brackets and modify the cross member.

If I was going to recommend an "easy" engine swap, it would be the 20V Audi inline 5.

I don't think there is such a thing as an easy V8 swap, unless you purchase a renegade or Texas performance kit and install an LS engine. And they don't even have a kit for the early 924, so a 944 kit needs to be modified.

The aforementioned Audi V8 swap isn't easy either. Both threads on the 944 hybrids forum has been dead for ages, without any conclusion. (just like the VR6 swap threads out there....)

In one of the Audi V8 threads, it can be seen that the engine oil pump is located at the worst spot ever. Just over the cross member/steering rack. The other guy is moving the engine towards the front to get more clearance, but then he can't close the bonnet......
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Euro 924, 1976

"If you can't fix it, don't break it"

/P.G. Andersen

ThomasJoseph315 · Guest

Horizonblue, you have any pics of your build? I'm not 100% dead set on the 928, I just seen it was selling for cheap. What size engine is the 5 cylinder? Do you have an engine code? I just know that this 1980 engine isn't going to cut it forever.

You talking about the engine that is in this? LOL,.. yea that will do it

. I would have to swap out the 944 tube and rear end I think, but would be fun!
https://www.youtube.com/watch?v=aPbgU9D-nxM

kcoyle · Joined: 15 Jan 2011 Posts: 712 Location: Long Island, NY

My brother has a 89 S4 with a manual box and it's plenty quick.
That said that motor is still old in every way and maintenance isn't cheap.
If I was going to reinvent the wheel I'd go with a common 4cyl turbo engine requiring the least amount of work.

Look like lots of work but a great choice.

http://www.924board.org/viewtopic.php?t=37749&postdays=0&postorder=asc&start=0
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1982 931- Stock with MBC at 8psi

Relax, all right? My old man is a television repairman, he's got this ultimate set of tools. I can fix it.

Horizonblue · Posted: Sun Apr 06, 2014 8:16 am Post subject:

nickthompson · Joined: 26 Mar 2013 Posts: 873 Location: Central Georgia