924Board.org

tuurbo

My brother's Chevy 355 blew a head gasket and he's getting rid of it. He's offered it to me for my 924 turbo (1980) - it has a tuned port injection, is about 450 HP and quite a monster - he's getting rid of it along with a 700 R4 automatic transmission (I have no idea what that is - stall converter, stuff like that attached).

Anyway, is this totally unreasonable for the '80 924 turbo? Roughly how many $ thousands to do it? I have a guy nearby who's interested in doing the job - haven't got a dollar figure yet - he's talking about swapping a Ford rear end into it. He's built a few drag cars and drag bikes and I've seen his work.

Doable? Crazy? Too much money?

I have had other plans for the car that I would like to keep - I just think I need verification that this is going to be waaay too much of a project to consider.
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1980 924 turbo, MSD, Meth. Inj, otherwise stock.

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11724 Location: PacNW

Ford rear end? I just barfed a little.

Chevy is selling bare Camaro chassis for $7000, put it in one of those.
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

tuurbo · Posted: Wed May 06, 2009 11:43 am Post subject:

Well I think such a project is upwards of $5-$10K which makes it totally out of my league. I think on the early cars there's a helluva lot more work to do than on a 944 or an 'S'.

The Camaro is a better place for it.

Thinking about it, ...I hate letting go of things offered for free, but I think I'm going to pass on his offer - great engine, but no place for it.
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1980 924 turbo, MSD, Meth. Inj, otherwise stock.

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

feasible? Of course! Just dont try to use anything but the engine and mate it to the tourque tube. Head on over to www.porschehybrids.com where they have a great wiki setup detailing the chevy swap.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

tuurbo · Posted: Thu May 07, 2009 1:07 am Post subject:

ideola · Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11724 Location: PacNW

I suppose its the "Cast-Iron-V8-and-Live-Axle-in-a-Beloved-Toofah" that gets me illin, Dan.

And as for "Motor City". . .hope you have a new name in the works!
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

ideola · Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI

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

tuurbo · Posted: Thu May 07, 2009 5:00 am Post subject:

Ok so I went to this link here http://www.porschehybrids.com/php/viewtopic.php?f=2&t=604 called '924' and found a 931 Series II (mine is a Series I) whose list was as follows:

Things I've had to do to mine
- make an adapter plate for the TT to the bellhousing
- make my own motor mounts
- rework the brake lines / mastercyclinder. (still working on that one) Dont forget the brake booster has to be removed unless you do what porschev did. check out his stuff too, good info.
- shortened the TT but let the driveshaft the same length so it fit into the bearing on the engine.
- modified the drivers side firewall for clearence.
- modified frame rails for header clearence
- reroute fuel lines
- I'm going to remove the internal / external fuel pumps soon since I'm not using fuel injection. I'm sticking with the stock chevy mechanical fuel pump
- relocated the speedo stuff to keep the heat from the headers away from it
- new radiator for the v8 and mounting (I"m getting a custom alum. rad)
- soon will need to get the custom exhaust work done too

I don't know where I'd get a torque tube and transmission to handle 450 some HP however...ours on the 931 will handle like at most 300 right? I would think that the 951 transmission would be way appropriate for brother's engine - has the strength and the gearing (I would think).

Anyway, I'll take this list over to his garage and ask him.

Good links btw. Still leafing through them...

Renegade however has $2K kits - if I could convince him to get a 85 944 (5 bolt, Audi box) I'm sure he could find one cheap right now.
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1980 924 turbo, MSD, Meth. Inj, otherwise stock.

tuurbo · Posted: Thu May 07, 2009 7:28 am Post subject:

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11724 Location: PacNW

v8carreragts · Joined: 05 Sep 2003 Posts: 665 Location: Tucson, AZ

You don't need to shorten the TT. You could get by with the 931 transaxle for awhile. There are some guys on the board that are making bellhousing adapters for the late Vette (C5) bellhousing that will work. Also, Quicktime has a bellhousing now that is made for the swap, courtesy of on of the guys on porschehybrids.com's work. You can buy it direct from them, p/n RM6033.

There is a guy with a 931 and Buick GN engine on the board as well.

The 951 transaxle will be fine with the Chevy. One of the guys on the board has a 944 with a Magnason supercharged LS1 that drag races it.

Many of us have made all of our parts. There are two ways to keep power brakes. BMW or Bendix hydroboost. I have the BMW unit on mine.

There is a set of off the shelf shorty headers that bolt on or you can use vette manifolds.

You can use the 951 radiator and fans to cool it.

???

Adie · Joined: 11 Aug 2004 Posts: 73 Location: Toronto

Rick, seems like you have been talking this project for many many years now?
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924 zero cylinder race car,

xdirtyx · Joined: 08 Oct 2008 Posts: 16 Location: flushing ohio

didnt it graduate to murder city there for awhile? an if u love yer cars so damn much why dont u fix the damn streets!! i bought 3 205/40/16 BFGs while i was there @ $140 a pop

part of the reason i left lol
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1980 931