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924 Carrera GT Project Questions

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Old 12-01-2008, 09:47 PM
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jturbo
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Default 924 Carrera GT Project Questions

I am planning to build a 924 Carrera GT Replica based off of a 924, but with a 3.0 liter 4 valve 944S2 engine with added turbo and 951 lsd transmission.

I am not sure which 924 chassis would make the best basis for this car. Or for that matter, when did the factory start adding the galvanized / "special coating", not sure of the specific term, on the metal pannels?

Will the 968 MO30 sway bars fit on a 924 using the existing suspension?

What about the 944 Turbo Shocks?

Will the 3.0 liter engine with a turbo added fit in a 924 engine bay? Will the mounting points have to be adjusted to fit the 3.0liter.

What is the widest tire size that will fit under the front and rear of the 924 Carrera GT body kit (GT-Racing)?
Old 12-01-2008, 09:56 PM
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Lemming
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Start with the 924S it has some of both worlds.
Old 12-01-2008, 09:59 PM
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pjburges
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The engine mounting points for the 924 and 944 are different. They will have to be fabricated. The 944 mounts to a large aluminum cross bar, the 924 to the frame.

The 944 Turbo struts attach to a different style knuckle (thinner and taller) than the N/A 944 and 924 Turbo knuckle. You will need turbo brakes and knuckles (advised anyways for a 16v turbo) to use the turbo struts.

The 968 front bar mounts differently to the arms than the 924T. The 924T uses steel arms, the 968's are aluminum. You bolt directly to the arm on the 924, you have a droplink on the 968. Your torsion bar carrier on a 924T should have brackets for a sway bar, but you'll need the bushings to fit the larger bar. If it doesnt have these brackets you'll need a torsion carrier from a newer car that does have them.

Galvanazation was never fully mastered on the 924 series to my knowledge, so your best bet for a good unibody lies with a 944.

HONESTLY IMO, youd be best off buying a parts 944T with a blown motor or something and applying that car to your project. Adapting up the 924T will not be easy. Even using an early 944 N/A would be easier, or an S2 with a good motor (cheaper).

Most people can fit a 285 under the 944T, I have no idea what might fit under the CGT kit.
Old 12-01-2008, 10:01 PM
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pjburges
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Oh, and my car is roughly a "CGT" modified car, although it isnt finished yet - it started as a 1987 924S, I would not start with that car if you are trying to build a real monster, not just a "looks cool" car.
Old 12-01-2008, 10:35 PM
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WizPorsche944
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I want to do this project too. Good luck with it !
Old 12-02-2008, 12:15 AM
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jturbo
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PJBurges,

Do you have any pictures of your Carrera GT project car?

Sounds like the 924 Carrera GT project would be a bad idea with a moster motor.

Would a 944 S2 accept the Carrera GT bodywork? I think the front fenders are the same on 944 as Carrera GT, but the rear fenders are wider than 924. This may look bad.

What do you think.
Old 12-02-2008, 12:23 AM
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El Commandante
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you could try swapping in an audi 5 cylinder 20 valve turbo onto the 924. Its not a Porsche engine, but it should be alot easier than trying to stick a 3.0 Porsche engine in there

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Old 12-02-2008, 12:28 AM
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white924s
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Starting with a 924S will be easier than starting with any other kind of 924, and you'll need a 924 if you really want the bulged fenders look of the CGT (as opposed to the more traditional 944 style rear fenders). You can basically swap in everyhting for an 86 951 turbo without too much fabrication (if any), and they make coilovers, bushings, big reds, etc for 86 turbos so if you really want, you can build a serious machine with off-the-shelf parts. THe catch will be getting the speedometer to work with the 951 spindles. On a track car, that doesn't really matter...on a street car, perhaps you could rig up an aftermarket speedo triggered off the transmission (a la 968)?

Rust is pretty rare on 924S's, but you'll be doing major bodywork anyways, so is that a big concern? You'll want to be sure that the battery tray isn't leaking, but beyond that, structural rust isn't really much of an issue on any car that hasn't been horribly abused

The other catch is $$...swapping out the car's entire running gear and drivetrain won't be cheap.

One other thing (sorry for the rambling but its late...) if you want to turbo the car, you'll have to look very carefully at the factory fuel line location on the 924S - the lines come up right behind where the hotside of the turbo mounts - not really an ideal situation in any way. Maybe you could put a built 968 n/a motor in or mount the turbo in the style of the Callaway kit (on the passenger side)
Old 12-02-2008, 12:36 AM
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jturbo
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Thanks.

What about the motor mounts and fit. Will a 968 3.0 fit into the 924S engine bay. Alternatively, if it will fit, I could install a 951 engine and trany with 3.0 liter crankshaft. The engine is a little smaller.

Any thoughts on this?
Old 12-02-2008, 02:23 AM
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Airflite40
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here are some pics of my 924S in CGT garb before a taxicab totalled it.















Old 12-02-2008, 02:24 AM
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87 944 C
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you're going for one that'll look like the one in your avatar?

i'd start with a 924 S. if you want the wide rear quaters theres a couple things you can do. 1) fabricate them yourself, to your own liking; 2) buy the replica wide body panels for 924CGT clones. i could also recommend if you have the time, take body panels off the 924S and use 944 front fenders, as they are the same one used on the CGT. however if you want wider, like C GTR, then i think gt racing makes em.

i attempted this with my 79 924 prior to learning it was a sebring edition.(thank god i never got anywhere)

the motor. didn't the real CGT use a 2.0 T? so powerwise you can use a 2.5L turbo from a 944 nd have the same power as a CGT did and not have to change the engine other then dress up.
Old 12-02-2008, 03:42 AM
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jtsporsche
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ive thought about doing this to my 924S (though not seriously).
id get the full gt-racing body kit, and a built 951 motor and suspension.
Old 12-02-2008, 09:06 AM
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924RACR
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A 924S is definitely the way to start, not an earlier 2.0L car - for the suspension and engine mounting points as already noted - it all pretty much becomes bolt-on. Tim (Lemming) has already put the 3.0L in his 924S, just without all that bodywork.

Re: rear tire size - the CGT (basic, smallest bolt-on flares) is designed to work with early-offset 15x7" rims, as found on the early 944 - CGT's came with Fuchs, but fitment is the same as cookies. However, you can work a little closer to the fender, particularly if you have uprated springs/t-bars (though it doesn't sound like you're going there), and there's also plenty of room on the inside to add width there. I'm sure you'll have no trouble keeping the butt-end tied to the ground, particularly if you went for wider late-offset rims, with modern rubber.
Old 12-02-2008, 09:40 AM
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Lemming
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As Vaughn said, the 3L will fit nicely into the 924S. Go to https://rennlist.com/forums/showthre...ferrerid=23673 to see a thread of my build.
Old 06-11-2015, 12:51 PM
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Kings0987654321
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Default About to attempt

I have a 77 924 cali edition, I just ordered 89 944s2 engine trans torque tube dash cluster motor mounts cvs and rad. I still need to order brakes and going with an aftermarket Konig suspension. What else will I need? I know everyone says bad idea but I want something unique and Ive already spent 3 g on all the parts lol


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