BBS RS ( Fill then Re-Drill )

[bad_azz_bmr]

I dont like the work needed to get down to the actual hub. It seems that it will be a pain just to change rotors or pads. Then the safety issue, the extra added weight issue . I was just gonna redrill then run a 20mm hubcentric spacer with centering ring seems easy enough. Do they make 20mm adapters?

I have a set of FK 20mm adapters for the front of my car, 4x100 to 5x130..

I am not sure what you mean about the safety issue, running a 20mm spacer with extended lugs to me is a lot more unsafe than running an adapter that bolts to the hub and then the wheel bolts to the adapter.

Porsche has been running factory adapters like this for over 30 years, most of the widebody 911's used to run a 2" adapter for the rear wheels. and the best part is 4x100 to 5x130 is non-conflicting bolt pattern.

I agree it will be a pain changing rotors and that is really about it, pads will be just as easy, no need to take off the adapter. But how often are you swapping out rotors?

Also I have a spare Porsche D90 wheel that i will be running as a spare tire, just incase of a flat I won't need to take the adapter off to get home...

[Philo]

Yeah, I will echo everything he said.

Anything 18mm or up I suggest adapters for safety. Running large spacers would be very unsafe compared to adapters.

And the same thing on "how often do you change rear pads and rotors. I could see you flying through fronts if you track it. Honestly though, if you think it is too much trouble to undo 8 more lug bolts. . . . .

The weight of spacers will be just as much as adapters.

End the end, the fill and drill+spacers+extended lugs will cost more than a set of adapters. Plus it will destroy the re-sale value of the wheels.

Just my 2 pennies.

[Jonsku]

I dont like the work needed to get down to the actual hub. It seems that it will be a pain just to change rotors or pads. Then the safety issue, the extra added weight issue . I was just gonna redrill then run a 20mm hubcentric spacer with centering ring seems easy enough. Do they make 20mm adapters?

Redrilling is bigger safety-factor than using spacers or adapters! The material will change, and when you're talking of ~20 year old aluminium-mix you never know how it will affect the microstructure..

[Philo]

Redrilling is bigger safety-factor than using spacers or adapters! The material will change, and when you're talking of ~20 year old aluminium-mix you never know how it will affect the microstructure..

Shhh. . . .we weren't going to tell him that. :)

[OOMPH!]

I sent a wheel collision center an email asking them for a price to redrill and fill 5x120 to 4x100 and they said this "Typically you cannot change a 5 lug pattern to a 4 lug pattern, as the diameter of the centerbore opening will interfere with the smaller 4 lug pattern." I know it's been done over and over again a thousand times......

[Philo]

1. He said "Typically".
2. Does he know the centerbore size?
3. If he does, he cannot do math (I do not advise letting him do the work)
4. If nothing else, some people don't want to risk their business reputation on a "close cut" job like that; try someone else.

[E30SPDFRK]

I sent a wheel collision center an email asking them for a price to redrill and fill 5x120 to 4x100 and they said this "Typically you cannot change a 5 lug pattern to a 4 lug pattern, as the diameter of the centerbore opening will interfere with the smaller 4 lug pattern." I know it's been done over and over again a thousand times......

If you find a place that does 5x120 to 4x100 let me know please. I've been looking all around up here and can't find any.

All the places around here only do 5 lug-5 lug or 4 lug-4 lug.

[Philo]

You guys might want to call around to a few machinists. They have the tools to get the job done, and the precision would most likely be greater.

[OOMPH!]

1. He said "Typically".
2. Does he know the centerbore size?
3. If he does, he cannot do math (I do not advise letting him do the work)
4. If nothing else, some people don't want to risk their business reputation on a "close cut" job like that; try someone else.

Yeah I definitely got the uneasy feeling talking to them.

If you find a place that does 5x120 to 4x100 let me know please. I've been looking all around up here and can't find any.

All the places around here only do 5 lug-5 lug or 4 lug-4 lug.

There's a place in Burlington, NJ that customizes wheels. Name is "Wheel Works" and the guy's name is Tim. (609)387-4488. I'm going to try and call to see what they say.

You guys might want to call around to a few machinists. They have the tools to get the job done, and the precision would most likely be greater.

I'm not certain if I trust machinists, yes I think they're precision would be on point but they're not used to dealing with wheels everyday. That just makes me uncomfortable.

[aeryk7]

Ive decided I would go with the adapters . Like you guys said the pros out weigh the cons. Now I have to figure out what tire to run after i end up with a final offset of 3 on a 15x9. The rim is a et28 then add 25mm adapter and im at 3 any suggestions.

[E30SPDFRK]

Get 20mm adaptors. That's the smallest 5x130 to 4x100 adaptor they make.

That will put you at et8 at least, but you still probably wont be able to fit much more than a 215 on them.

[OOMPH!]

I just found out I can't redrill my wheels :( The backside of my wheel is a raised star pattern.......you need a flat backside to redrill.

[aeryk7]

I just found out I can't redrill my wheels :( The backside of my wheel is a raised star pattern.......you need a flat backside to redrill.

That sucks I fortunately have flatbacks.

[OOMPH!]

That sucks I fortunately have flatbacks.

It's all good, I guess I have to go the expensive route and start gathering funds for an e30 M3 5lug swap....;)

[Philo]

On the Rs wheels, the backing is flat & solid (which is needed)

I can't say I didn't try. :)