924Board.org

wdb · Joined: 02 Nov 2002 Posts: 2024

since it possible the AMC block and clutch parts might fit the 924 and are likely cheaper , and myself and others are hesitant to spend several hundred dollars to find out. what if we chip in and buy a few test parts , say a clutch parts pres. plate ,disk and bearings or ,oil pump, and main and rod bearings (in the 1-2 hundred dollars price range ) . 1 of the senior members would do the comparisons , and if the parts are a direct replacement , 1 name of the people who chipped in, is pulled from a hat ,and that person wins the parts . 15 people $10 each what do ya say .

Joes924Racer · Posted: Tue Dec 23, 2003 3:49 am Post subject:

They should fit ..huh. I had a concorde a 79 blue one. Put a hole in the block
also buy running down the freeway with no oil on my way to drill one winter day. I think this is a great idea.

_________________
1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.

Roger · Joined: 06 Jan 2003 Posts: 1235 Location: Cordova, TN

Pice is one thing but are the AMC part available?
_________________
1981 924 NA

Some people are like Slinkies. Not really good for anything, but you
still can't help but smile when you see one tumble down the stairs.

Zuffen · Posted: Sat Dec 27, 2003 11:05 am Post subject:

if you want to come to my house I have three AMC engines you could look at.
_________________
Bob Dodd - 924turbo@cox.net
931 1982, 944 1982 euro, 924S 1988SE, 93 968 tip 06 Silver Cayenne S, 06 Black Cayenne S

I have Way too many cars, parts for the 931,944 and 951

wdb · Joined: 02 Nov 2002 Posts: 2024

well ZUFFEN , do the amc parts fit the 924 engine ?

Zuffen · Posted: Sat Dec 27, 2003 11:31 am Post subject:

That is a pretty open question.

The question would be , do you want to even consider using the AMC versions? Even if cheaper, do the hold up as well.

The AMC engine wasn't rated high on the HP.

The head isn't machined for fuel injector ports.

The pan and valve covers are stamped steel.

They share the same water pump and oil pump.

The belt cover is AMC, intakes are for the two barrel single carb.

I don't remember what the exhaust Manifold looks like.

I haven't pulled the 4 speed off the one engine, (the other two are Autos). So the clutch is unknown.

One of these days when I've liquidated most all my junk I'll tear into these engines to find out how similar they are internally.
_________________
Bob Dodd - 924turbo@cox.net
931 1982, 944 1982 euro, 924S 1988SE, 93 968 tip 06 Silver Cayenne S, 06 Black Cayenne S

I have Way too many cars, parts for the 931,944 and 951

wdb · Joined: 02 Nov 2002 Posts: 2024

Thank you very much .

those who can afford and want the best quality , will go with OEM every time . the thing is I believe alot of 924's have been parted or gone to the race track in the sky because thier owners counldnt afford the high dollar parts , and didnt know less exspensive parts were available . yesterday , following links , I saw that some VW's use a 4 spring rubber center clutch disk , I thought it would be nice for the S owners if they'll work in the 924 ,instead of having to pay $1000 for the porsche unit . I think the if we find all the vw parts that fit the 924 they will be cheaper than the amc parts simply through the volumn of vw's sold world wide . i saw a rebuilt vw trans for sale commercially , it was $400 , the sychro's for my 924 cost more than that . the search continues .

Zuffen · Posted: Sat Dec 27, 2003 1:10 pm Post subject:

I wish you guys lived closer, I would have you all over on a weekend to dissect these engines.
_________________
Bob Dodd - 924turbo@cox.net
931 1982, 944 1982 euro, 924S 1988SE, 93 968 tip 06 Silver Cayenne S, 06 Black Cayenne S

I have Way too many cars, parts for the 931,944 and 951

wdb · Joined: 02 Nov 2002 Posts: 2024

oh , and also , it may incourage people to experiment , like buying and stroking a spirit crank shaft . or there may be high or low comp ratio pistons available , light fly wheels etc . or just using the amc bottom end for racing , turn up the boost and go like stink , so what if it detonates , its cheap , if you get 1 season out of a $300 engine and a few almost wins , it might be worth the trouble .

Zuffen · Posted: Sat Dec 27, 2003 1:42 pm Post subject:

Years ago I did a comparison of bore and stroke via the chiltons manauls.

And there were some close sizes and exact on in the chevy line.

Imagine cheap chevy pistons with dome that can be machined to build high compression NA pistons.

I think a 2.0 turbo with 9 to 1 compression under no boost would run like a stripped ass ape with low boost of 7 to 8 psi.

With modern valve springs, good fuel and a knock sensor you might even be able go higher on the CR so your low end stats would be full of torque and then the engine would really scream when it got into boost
_________________
Bob Dodd - 924turbo@cox.net
931 1982, 944 1982 euro, 924S 1988SE, 93 968 tip 06 Silver Cayenne S, 06 Black Cayenne S

I have Way too many cars, parts for the 931,944 and 951

Sleykin · Posted: Sat Dec 27, 2003 1:47 pm Post subject:

Zuffen · Posted: Sat Dec 27, 2003 1:50 pm Post subject:

for the longest time I was wanting to follow a factory line of performance improvements.

But I think the tiem is ready for a break from what was doen before and start to experiment.

I plan to knife edge a crank.

Build a sump pan and add a sump pump.

I think doing a two part cooling system, one for the head the other for th eblcok would let you get away from blown headgasket issues.

If you blew the gasket the results wouldn't be catasprophic.

A fuel rail and whatever kind of EFi that could be mapped would be cool.

Get rid of all the vacuum crap and weight of the CIS.
_________________
Bob Dodd - 924turbo@cox.net
931 1982, 944 1982 euro, 924S 1988SE, 93 968 tip 06 Silver Cayenne S, 06 Black Cayenne S

I have Way too many cars, parts for the 931,944 and 951

Zuffen · Posted: Sat Dec 27, 2003 1:51 pm Post subject:

Jan 25 we are having CIM tech with allt he PCA technical chairs
_________________
Bob Dodd - 924turbo@cox.net
931 1982, 944 1982 euro, 924S 1988SE, 93 968 tip 06 Silver Cayenne S, 06 Black Cayenne S

I have Way too many cars, parts for the 931,944 and 951

Joes924Racer · Posted: Sat Dec 27, 2003 6:14 pm Post subject:

It all sounds good er great. That stinken amc concorde anway.
Though the chevy thing with the pistons would be way cool.
I think sleykin can run milling equipment.. Although a machinist
wouldnt be that hard to find from a shop or a friend. Tell me more

_________________
1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.

Zuffen · Posted: Sun Dec 28, 2003 3:26 am Post subject:

Think of all the piston blanks out there for the chevy engines. Might even be some polished forged rods with the right size ends.

To bad you guys don't live close.

I've got basically an example of every type of 2.0 liter part.

You guys could empty out the building and sort through it all, take pictures and measurements.
_________________
Bob Dodd - 924turbo@cox.net
931 1982, 944 1982 euro, 924S 1988SE, 93 968 tip 06 Silver Cayenne S, 06 Black Cayenne S

I have Way too many cars, parts for the 931,944 and 951