924Board.org

Johnny Boy 82 · Joined: 01 Jul 2005 Posts: 30 Location: Alberta, Canada

Ok Guys, here is the deal. I have a 1982 924 Turbo, I am looking into completely rebuilding the engine, what parts on the engine are also made by VW and Audi. They seem to be cheaper and if possible I want to get some performance parts put on my engine while I am rebuilding it so, the cheaper, and the more performance the better. Thanks tons Guys
John
_________________
Bought my First Porsche
924 Turbo 1982

Raceboy · Joined: 01 Mar 2004 Posts: 2327 Location: Estonia, Europe

It doesn't matter, what brand are you looking for. Just ask 924 main and rod bearings, they're the same. Prefer "Kolbenschmidt" (in blue boxes) You have to let the crankshaft checked for wear first though, in order to know what size the bearings have to be (.25mm smaller or .50mm smaller in diam).
As for pistons we already told you the (better) alternatives to the OEM pistons (which suck BTW

). Only deal is to rebush the con. rod smaller ends to 22mm, instead of the original 24mm. And that's it! Take all these parts to the machinist and let him/her do the job: polish the crank to new size, rebore the cilinders, rebush the rods, machine the deck and head (for smoothness, not for higher CR) and balance the crankshaft (together with flywheel and crank pulley).
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold

'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

Khal · Posted: Thu Aug 25, 2005 5:33 pm Post subject:

The entire head, intake, exhaust and ignition system are 924 Turbo-only and there's some differences in these in the '81-82 models, especially the ignition system, compared to the '79-80 models. To the best of my knowledge, they're not shared with any VW/Audi's.

The pistons are unique, too, as far as I know. Not sure about the rods. The crank is the same as the 924, I think, so it may be common to some VW/Audi engines, which means the bearings are possibly common, too. If Raceboy says it's so, I'm tempted to believe it

The turbo on the '82 is the K26, right? Different to the '79-80 cars (they've got K27's?).

I know the engine mounts are unique to the Turbo, and again may have changed for the '81-82 Turbo's (as compared to the '79-80's).

My guess is even the block, while basically the same as the 924, will have some extra pulmbing holes in it..?
_________________
'80 924 Turbo

Lizard · Posted: Fri Aug 26, 2005 12:50 am Post subject:

Actually Khal the 931 block and crank are the same,
so are the motor mounts, same for all years with the audi 2.0L block (76-82/85)

as per the turbo all the 931 had K26 variants, however the 79/80 had a larger compressor wheel which had abit more lag but more HP potential.
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3 928s,

Raceboy · Joined: 01 Mar 2004 Posts: 2327 Location: Estonia, Europe

I was talking about the bottom end, and I wasn't suggesting Johnny to use the OEM pistons, because they're not worth the money and they're not strong enough.
If the head itself and valves are fine, only thing is to buy valve stems and let the headwork done. Head gasket is the same as NA, but some makers don't put the metal shroud around the oil channel, that is all the difference.
What's the big deal?

_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold

'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

Khal · Posted: Fri Aug 26, 2005 8:18 am Post subject:

Lizard · Posted: Fri Aug 26, 2005 9:09 am Post subject:

924 head gaskets part # was actually outdated to the 931 part
_________________
3 928s,

Raceboy · Joined: 01 Mar 2004 Posts: 2327 Location: Estonia, Europe

Khal, there is NO extra plumbing to the block on a Turbo, but into the oil pan. The block is identical. Actually I used 924 NA block for my engine rebuild

_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold

'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche

Khal · Posted: Fri Aug 26, 2005 5:28 pm Post subject:

Johnny Boy 82 · Joined: 01 Jul 2005 Posts: 30 Location: Alberta, Canada

Ok so if I wanted to put new a new camshaft from an Audi onto my car, it would match up With my Porsche, what other engine parts other than the block would match? And raveboy which pistons should I use? Those performance ones or the stock ones?
Thanks John
_________________
Bought my First Porsche
924 Turbo 1982

Lizard · Posted: Sun Aug 28, 2005 4:32 am Post subject:

as per the camshaft noone here has really looked into a different cam from another car, as it is better to get a custom ground one cut from billit material
_________________
3 928s,

Raceboy · Joined: 01 Mar 2004 Posts: 2327 Location: Estonia, Europe

DO NOT USE the stock pistons if you want your car to last and perform! How to install them correctly, read the other threads about it, this subject has been under discussion for a number of times. Do a search.
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold

'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche