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xpernet · Posted: Mon Apr 20, 2009 10:44 am Post subject: Rim spacers for bigger fenders

Hey guys,

Im picking up a 944 front end soon... hopefully CGT flares too. Now i have the stock 4 bolt setup and the wheels are going to look stupid. Does anyone know what size of spacers that would push out my tires enough... or what kind of offset i need?

I thought about doing the 5 lug conversion, but im postponing that to a later date due to time constraints. So its either spacers or new rims with the right offset.

Thx in advance

Sal
_________________
1977 Porsche 924
Sunroof Delete
Megasquirt II EFI & EDIS
Carrera GTS / 944 Body

"If one does not fail at times, then one has not challenged himself." Ferdinand Porsche

joecitizennn · Joined: 12 Sep 2005 Posts: 2096 Location: no mans land

I would suggest using the flares and bigger fenders for what they were designed for. Accomidating bigger tires. You can run up to a 9 or 10 inch rim depending on the make of flare. To be on the safe side dont exceed 9 inches. Buy your rims first, then fit them on the car and measure to determine the needed spacer thickness and order spacers accordingly.

You do not have the five lug setup, but if you did I could safely tell you that a 23 mm offset fuchs or phone dial wheel would fill the gap perfectally with no spacers. The origianl carerra flares were designed around 23mm offset deep dish 8" porsche rims.

Scorpio · Posted: Mon Apr 20, 2009 2:44 pm Post subject:

I have a 9 inch rim with 20mm offset..4 bolt...the rim just rubs on the inner fender ill be getting a 1 inch spacer and hopeing the 245 tires fit and fill the flare out..

fronts havent thought about those yet..but rim is 8 inch 215 tyres..cant test fit yet due to no suspension in atm
_________________
1979 NA
MS1..EFI..
GARRETT T25 TURBO
BILSTEIN SHOCKS
GT BASED CUSTOM BODYKIT

Brisbane , Australia
Think mean think fast
all youll see is
my Porsches Arse!!!

morghen · Joined: 21 Jan 2005 Posts: 9095 Location: Romania

your wheels will always look stupid nomatter what you do with the 4 bolt offset.
There is one way...to get really big negative offset wheels like Neil had on his car...but those are RARE and if you break one...you're gone...so you'll drive it like its made of glass.

get the 5lug setup first...get it installed and then find a set of fuchs or something with a decent offset and then add the flares.

spacers will cause problems.
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Scorpio · Posted: Mon Apr 20, 2009 6:37 pm Post subject:

morghen · Joined: 21 Jan 2005 Posts: 9095 Location: Romania

Scorpio....with the 4lug setup and wide body you will always need aftermarket or purpose made spacers...so stock 25mm or whatever spacers wont be enough..the car will look like a tram.

and whatever 4 bolt wheels you buy they will still look stupid unless they are identical to what Neil had...or you use really big spacers...wich points to the first issue i described.

So..get a 5 lug if you want a widebody.
Most new design rims have big positive offsets wich means you will need preety big spacers.

An example:

924 with CGT wide body
-5 lug setup !! but early 944 steel arms and hubs...this widens the tract on each side so stock 944 cookie cutters will sit flush with the 924NA fender.
-8" ET50 rim
to use the 8" ET50 rim and fill the CGT/944 arches right you need aprox 65mm of spacer

so take this example and see how hard it is to offset the wheels using the more wide 5 lug setup....now think of offseting a similar width and ET rim on the 4 lug setup.
_________________
Supercharger and EFI kits
https://www.the924.com

Scorpio · Posted: Mon Apr 20, 2009 8:14 pm Post subject:

early model ford mustangs have a 4x108 rim with a ET between 5 and 20..they come in 7,8 9, and 10 inch wide rims. only problem is youll need hubcentric rings....unless you decide to go lugcentric(not optimal)

so a 15ET mustang rim with a 24-30 mm spacer gives the same overall result as the GT example above..Now if you dont like mustang rims then youre screwed.. Neils deffinately arent the only good looking option though

I agree the 5 disk upgrade is superior but its not to say its the only viable option
_________________
1979 NA
MS1..EFI..
GARRETT T25 TURBO
BILSTEIN SHOCKS
GT BASED CUSTOM BODYKIT

Brisbane , Australia
Think mean think fast
all youll see is
my Porsches Arse!!!

Vince Ponz · Joined: 02 Nov 2002 Posts: 3581 Location: Florida

Morghan is right. Steel A arms with say stock 944 rims and rubber is fine.
_________________
"Never let them see you sweat"
77.5 924 modified track car
79 931 Euro stock
88 924S SE
87 911 Targa stock

PORSCHEV · Posted: Tue Apr 21, 2009 1:34 am Post subject:

This is what you want, but in a 4 x108. I have seen them on ebay before. I think you would find that 25mm. 2.5 cm is NOT enough to fill a cgt fender flare. some of the stock 924 rims are already sucked under the car too far. you need 2.5 inches of offset to fill the flare.
_________________
1976 924
5 lug conversion, 17'C2 wheels,custom body work,327 vette engine.

1978-#53 "D" track racer.

billson · Joined: 10 Sep 2006 Posts: 41 Location: UK

I have the CGT kit on and retained the 4lug set up Wheels are 7.5x16 ET20 with 205/55/16 tyres at the front and 9x16 ET 15 on 245/45/16 at the back. There is a 15mm spacer at the back

No problems running that set up. Depends what look your after though. I wanted the deep dish look so I got these wheels. They're Kerscher Carmonas. I think you need wide wheels at the back if you're putting flares on - thinner ones with big spacers will look daft

Most important thing is the offset. Better to buy the correct offset wheels in the first place rater than use spacers to compensate.

Useful offset calculator here http://www.1010tires.com/WheelOffsetCalculator.asp
_________________
1983 924 NA
Guards Red
Carrera GT bodykit
Larger VW throttle body

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

I have a set of 4x108 to 5x130 adapters/spacers that came off my 924 with the A.I.R. CGT front end/944 rear end on it. It was/is using stock-sized 944 wheels.

They need a couple of studs repaired/replaced, but they seem to work fine otherwise.

I don't remember their width, but they were at least an inch or more. I can measure them tonight if you're interested.
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

joecitizennn · Joined: 12 Sep 2005 Posts: 2096 Location: no mans land

Dont forget "blank" wheels that can have the lug holes drilled to fit any application.

Scorpio · Posted: Tue Apr 21, 2009 5:05 pm Post subject:

xpernet · Posted: Tue Apr 21, 2009 11:21 pm Post subject:

Thx for the responses guys!

I just wanted a temp solution to use my stock rims. I dont want to buy a set of 4 lug rims that i wont be able to use after i convert to the 5 lug setup.

Then again i dont want to convert to a 5-lug setup now because i need to get my car on the road asap and dont feel like fiddling with the suspension and brakes during my spring semister at college!

I like fiat22turbo's 4x108 to 5x130 adapters idea... can get the right rims i want and when i convert to the 5-lug setup i can still retain them.
_________________
1977 Porsche 924
Sunroof Delete
Megasquirt II EFI & EDIS
Carrera GTS / 944 Body

"If one does not fail at times, then one has not challenged himself." Ferdinand Porsche