924Board.org

tim_924 · Joined: 17 Nov 2011 Posts: 24 Location: Bristol

Hello, im currently involved in a 924 GT conversion and was wandering about a few things...

If i keep with the 4x108 alloys with et15 on the rear and et20 on the front and then get spacers if I need them would this affect the handling alot??

The other thing I was thinking of doing was to change the hubs to 944 hubs so that they are 5x130. Would this move the hubs out so I would only need small spacers if any at all?? would this be a better idea for handling etc...

Cheers for the help everyone.
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1979 Porsche 924 GT replica
1999 Vauxhall Frontera 2.2 SWB DTI

Carrera RSR · Joined: 08 Jan 2010 Posts: 2312 Location: Somerset, UK

Remember you are not trying to do anything different to what Porsche have already done in building the Carrera GT!

If you follow their format you will not go wrong. The 924 was upgraded to 924 turbo and then on to the CGT. The 944 was developed after the CGT and can be issues trying to use 944 parts on an early 924. Long story.

If you go to 5 bolt hubs buy all the suspension and brake system from a 924 turbo.

I have bought a 924 turbo parts car but unsure what parts I will be selling in the short term. Andy has a turbo he is breaking currently and is based in Tamworth http://porsche924.co.uk/forum/viewtopic.php?f=12&t=10952

As for handling, lowering and widening the set up will only improve things
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1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
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sparkle28 · Joined: 29 Feb 2012 Posts: 30 Location: UK

hey tim. I also start a 924 gt carrera conversion as of tomorrow when i get the car delivered. I found myself asking the same questions wandering how to fill the arches. I'd presumed I would just whack some cheap cookie cutters and spacers on there until i found out they are 5 stud.

the cheapest solution is to go looking on ebay for some appropriate used 4 stud alloys. theres massive choice of 108 4 stud alloys, one or two look like they might suit the porsche.

from some rough maths i recon 7 inch wide wheels with an offset of 0 will still only make the wheels stick out about 30mm so would need spacers as well. I'm going to fit the rear arches before i decide what size spacers to fit so i can see what i'm doing.

Another way i found from some googling is to drill and tap a 5 stud pattern into the existing hubs. I don't know how safe that is however, maybe someone cleverer than us will tell us? maybe a specialist machine shop would do that. then its just a case of buying spacers. Spacers would still be needed anyway.

I'll be removing my front wings tomorrow as my first job and maybe start a thread to post some pics as i go along.

..oh as for handling: i think go for the lowest offset value as possible that way the spacers don't need to be as wide. and you dont need longer studs. i'm no expert though. i'm good at taking things apart.

tim_924 · Joined: 17 Nov 2011 Posts: 24 Location: Bristol

Hello sparkle, yer i was looking at cookie cutters aswel, you can get 4 to 5 stud conversions but not sure if you could get them built into the actual spacers (obvisouly would cost alot more)

Ive been looking through ebay and the net and the only thing i can find in 4x108 is an offset of 15?? there was some mini wheels but they were only 13" with an offset of 0 which is really annoying, have you had any luck?? did you see the ones i was looking at with that offset? they look really nice, have that classic look and alot of other GTC conversions use that same "bbs look" wheel.

Dont think it be too keen on doing that drilling out 5 stud conversion sounds abit dodgy to be fair...maybe the conversion would be better using the spacers?

Just wandering where did you get your GT kit from? ive had a problem with mine as it doesnt quite line up on the offside front wing but I will have to use some filler to correct this which is annoying....

yer taking things apart is much more easy hahahha, ive spoke to a couple of people and they say widening the track of the vehicle is good and will be fine aslong as you stick to the same spec as the standard one...

cheers for the help mate, give me a shout when you start work!
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1979 Porsche 924 GT replica
1999 Vauxhall Frontera 2.2 SWB DTI

sparkle28 · Joined: 29 Feb 2012 Posts: 30 Location: UK

yeah i've seen the bbs type ones. i've not got my kit yet but dont expect it to line up.. most fibre glass parts are a bag of s**t and need loads of work to reshape them and prep them. i'm not too fussed though, i'm going for the scruffy stripped out racer look i think.

I suspect a turbo badge panel will cost more than the value of my car lol.. for those in the know.. is the badge panel something i need to change whilst the wings and front bumper are off or can i do this at any time?

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

sparkle28 · Joined: 29 Feb 2012 Posts: 30 Location: UK

sounds too difficult for me. maybe this way would work for making a gt type badge panel:

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

It shouldn't be bad. All you are doing is drilling out the spot welds.
It seems you would do more drilling the other way.
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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.

Carrera RSR · Joined: 08 Jan 2010 Posts: 2312 Location: Somerset, UK

sparkle28 · Joined: 29 Feb 2012 Posts: 30 Location: UK

erm your right, it was a rubbish idea on reflection.

i presumed if i drill through the spot weld then i'd have to spot weld a new one on afterwards and i don't like welding- nor have any gear for that.

Carrera RSR · Joined: 08 Jan 2010 Posts: 2312 Location: Somerset, UK

You'll need to clean up the remaining metal work on your car, ideally spot welds in the holes and grind flat. The 924 turbo badge panel would be removed in the same way from the donor car and again the metal will need to be prepped. However the new badge panel can be adapted to become a bolt on affair. Porsche did offer a bolt on version of the turbo badge panel but you are more likely to purchase rocking horse poo from your local dealer than find one of those. UK badge panels sell for circa £100 and upwards and rarely become available. However you might want to try Andy who has a turbo he is breaking at the minute. He could help with the welding as well http://www.porsche924.co.uk/forum/viewtopic.php?f=12&t=10952 he's in Tamworth.

To fit the rear CGT arches you'll also need to do some cutting and welding of the cars arches as well to allow wider wheels. Read the other CGT thread here for the link to the 'how to'.

You also need to get tricky with the search button here and on Google as there are loads of threads and photos on all this in the t'interweb world
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1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
Now www.924board.org/viewtopic.php?t=34690
Then www.924board.org/viewtopic.php?t=31252

sparkle28 · Joined: 29 Feb 2012 Posts: 30 Location: UK