BBS Garage: All things BBS
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Help with offsets?
Can anyone help me understand the offsets of my wheels? There must be something obvious that I am missing here.
I purchased a set of four 16" BBS RS from another member:
2x BBS RS 005 - original specs 16x7 ET11
2x BBS RS 061 - original specs 16x8 ET20
The way I would expect to run these would be the 005 in the front, and the 061 in the rear. HOWEVER, here's where it gets tricky. The PO of these wheels replaced all four barrels with the same size - effectively making them 16x7.5 all around. No changes to the lips.
So my questions are:
-How do I calculate the effective offsets for these wheels after these changes?
-Which pair should I run in the front & rear?
Thanks in advance allThese are on what will eventually be my E30 M3 cabriolet replica.
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BBS Garage: All things BBS
When you say replaced all four with the same size, you are not being very specific. All same size meaning the front and back have the same size barrels or the same as oem? Either way any increase or decrease in barrel size without altering lip and hub will increase or decrease et 6.5mm positively or negatively for every half inch I hope this helps.
Sent from my iPhone using TapatalkFEEDBACK:
http://www.r3vlimited.com/board/showthread.php?t=316212
BMWCCA #398608
IG @yagayo38
"The Best E30's were built with two camshafts four cylinders and sixteen valves!".Comment
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That is very helpful, thank you! The 005s were increased by a half inch, so would that mean instead of 11mm offset they are now 17.5mm?Comment
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The opposite actually, when you increase the width you decrease the et/offset. So it would actually be 3.5
Sent from my iPhone using TapatalkFEEDBACK:
http://www.r3vlimited.com/board/showthread.php?t=316212
BMWCCA #398608
IG @yagayo38
"The Best E30's were built with two camshafts four cylinders and sixteen valves!".Comment
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BBS Garage: All things BBS
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Sent from my iPhone using TapatalkLast edited by getouth; 09-23-2017, 10:04 PM.FEEDBACK:
http://www.r3vlimited.com/board/showthread.php?t=316212
BMWCCA #398608
IG @yagayo38
"The Best E30's were built with two camshafts four cylinders and sixteen valves!".Comment
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Anyone have pics of RS001 16x7.5 mounted? Im in the mood for some BBS porn pls share![/SIGPIC]Comment
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Last edited by bradnic; 12-01-2017, 05:28 AM.I BUY/SELL REFURBISHED CM5907s & CM5908s
HOWTOs:
DB vert plastic bumpers
OEM Keys
MTech1 docs
88 ix Lach/Card
91 ic Calypso 3.1
86 Cosmo 2.7
OEM+ or bust!
reelizmpro: I will always be an e30 guy.. I still do all of my own labor
TrentW: There's just something so right about a well-built M20 in an E30
e30m3s54turbo: I save my money for tuner parts.Comment
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NICE. more pics please.
closeups?
please
pleaseI BUY/SELL REFURBISHED CM5907s & CM5908s
HOWTOs:
DB vert plastic bumpers
OEM Keys
MTech1 docs
88 ix Lach/Card
91 ic Calypso 3.1
86 Cosmo 2.7
OEM+ or bust!
reelizmpro: I will always be an e30 guy.. I still do all of my own labor
TrentW: There's just something so right about a well-built M20 in an E30
e30m3s54turbo: I save my money for tuner parts.Comment
Comment