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Your best bet may be to search this on the forum. There are many threads about it and most have pictures and thoughts about ride height as well. My car has PASM . I have non factory offsets so my spacer size is different, ECS 18 rear ( 52 offset -18 spacer =34 ) rear and front (46 offset- 5 spacer = 41) . So my rear is like an OEM rim with a 17mm spacer and front is like a 16mm spacer . Confusing right! Took my LOTS of searching and reading to figure it out. On OEM rims, 7 front and 15 rear seem popular although some guys are liking 12 to 15 front better. I agree.
Agreed with above, using the search feature will land you a few results, sometimes its trial and error. If you do find that you need 17mm I have a set of 4 OEM Porsche spacers for sale.
My car is lowered pretty far, but here is another example.
19x8 Front ET45 with a 5mm spacer, so final offset is ET40.
19x11 Rear ET40 with a 7mm spacer, so final offset is ET33
Your best bet may be to search this on the forum. There are many threads about it and most have pictures and thoughts about ride height as well...
Good advice.
There’s 188 threads with ‘Spacer’ in the title (not all relevant, but many are) since 2005, and 29 of them (including this one) with updates since Jan 2017.
I have Lobster forks on a 997.1 C2S, so it is different but there does seem to be some kind of norm with spacers from my searching.
For example, if you ask most shops directly, they will immediately go to 7mm front, 15mm rear, which is what I can get results of all day on the forums.
Then, conservative people seem to run 5mm all around.
The more aggressive option is 15mm all around.
However, all this is affected by wheels, tires, and suspension.
On stock suspension (4x4 non-S), I notice, with Lobster Forks, 15mm rears seem to stick/poke out, which looks terrible to me.
On the C2S PASM suspension (a little lower) the 7mm front/15mm rear looks good but there is space up front to get more aggressive and the rear is just peeking out, which still doesn't look that great to me.
Lowered on Eibachs, or other conservative springs (a little lower than the S suspension still), which pulls the wheels in a bit more as the suspension is lowered, = 15mm all around seems like it tucks in a bit more depending on what springs you go with (from Eibach to H&R and etc.).
With Coilovers, you have even more adjustability, and in some cases you can go even lower if you want.
All this makes the decision super hard. I can say that Darrin at FD (who is a very solid source IMO) recommended the norm of 7mm front and 15mm rear. I am running 305 PS4Ss in the rears, so that is going to have an effect on things as well. A couple other places have said I can do 15mm all around with some adjustments (i.e. with 305s in the rears, I might need to add a little camber...). I have gotten no definitive answer that is uniform across the board on spacers though.
After searching and thinking about this a lot, this is where I am at once I install my Eibach Pro Kit springs:
1. Just go with the 7mm front/15mm rear formula
2. Be more aggressive and do 15mm all around
3. Get the sampler kit and try different stuff out before making a decision
4. Buy 997.1 GT3 wheels when they pop up
5. Get some proper wheels in the right offset that will give me what I want without the spacer hassle.
It would be cool to do a more official sticky thread that breaks down the options with pictures and no discussion because I do not feel confident enough to buy spacers and install them from what I said above. It isn't the price, it is the hassle of possibly having to redo stuff that stops me. With previous cars I have owned, I just bought wheels in aggressive sizes and did not mess with spacers. I might just end up doing that in the end with this car as well.
I believe it depends on the height and offsets of your OEM wheels that will provide you with an accurate set of spacers. On my stock 8x18 et 57 fronts and 10.5x18 et 60 Carrera IV wheels on slightly lowered height (Eibach), I put 15 mm spacers all around. With how it looks now, I still have room for 2 mm more all around so I could have chosen 17 mm instead of 15mm. To fill up the wheel well gap, I am upgrading to 19 wheels (Carrera IIs) with almost the same offsets as the OEM wheels with wider rears 19x11 so I might retain the spacers.
I like how the car of GT3_ish sits and the size of spacers he used.
8x18 et57 with 15 mm = et42
10.5x18 et60 with 15 mm = et45
I have a 3.6 non-pasm 997.1. I was recommended NOT to get spacers before installing Eibachs. Some folks said it just made the 4x4 gap look more pronounced.
Post Eibachs the car looks stellar. I went with conventional wisdom using 7 in front and 15 in back. The rears are absolutely perfect but the fronts look tucked in. I will change to 15s in the front one of these days.
If you want to go with the conventional wisdom I will sell you my 7mm RSS spacers from Sharkwerks for a good price.
I believe it depends on the height and offsets of your OEM wheels that will provide you with an accurate set of spacers. On my stock 8x18 et 57 fronts and 10.5x18 et 60 Carrera IV wheels on slightly lowered height (Eibach), I put 15 mm spacers all around. With how it looks now, I still have room for 2 mm more all around so I could have chosen 17 mm instead of 15mm. To fill up the wheel well gap, I am upgrading to 19 wheels (Carrera IIs) with almost the same offsets as the OEM wheels with wider rears 19x11 so I might retain the spacers.
I like how the car of GT3_ish sits and the size of spacers he used.
8x18 et57 with 15 mm = et42
10.5x18 et60 with 15 mm = et45
Never seen a car look so good on 18's ! - Almost makes me want to reconsider the 19's I have!
Any more pics ?
Are you running the Eibach pro kit ? and how is the ride ?
Never seen a car look so good on 18's ! - Almost makes me want to reconsider the 19's I have!
Any more pics ?
Are you running the Eibach pro kit ? and how is the ride ?
Thanks. Maybe its just the angle and clarity of the photo which came out nice. Yes, I'm running Eibach pro kit and ride is no different from the stocks. I recently bought 19 OEM Carrera IIs to fill up the gap further. I will take photos once I get it. I just had a drive last Sunday and took this.
As others have said, the answer depends on if you are lowering or not. With stock 19" 8/11" wheels and 57/67mm offsets, I'd go 10mm all around. That should help the look without poking the wheels too far out making it look like a roller-skate.
If you are going to lower and get a proper alignment, you can get much more aggressive with the spacers.
ECS Tuning rents a spacer kit so that you can try different sizes before buying.
Reviving a dead thread but so a stock C2 997.1 with 15mm spacers front and back with stock Carrera Classic 19" wheels (19x8 et57, 19x11 et67) should work right? Final numbers would be 8/42 and 11/52.
I would suggest 12mm in the front. I am running 15mm in the front and sometimes at full tilt on a hill, it can rub inside the wheel well.
Originally Posted by carguy999
Reviving a dead thread but so a stock C2 997.1 with 15mm spacers front and back with stock Carrera Classic 19" wheels (19x8 et57, 19x11 et67) should work right? Final numbers would be 8/42 and 11/52.
06-07-2018, 11:02 AM
