Reversing split rims

[JamesAE86]

how is it done, pro's/con's?

[topi]

Take em apart, turn the centres round.

Only ballix is the valve will then be on the inside or the wheel.

[islander]

Welded together btw

[jap-si]

and that you don't actually have wide wheels.

so it's more likely that you will need body mods to fit them and your tyre choice is limited.

eg. 6j rims with high offset, then reverse them and they stick close to the edge of your arch, you have limited tyre choice to get around it.

if you have 9j rims and they get close to your arch, you fit smaller tyres and stretch them. to do the same on a 6j rims, you would need 175 or 165 tyres. which would mean it drove like shit and had bugger all grip.

[eight-six]

Originally Posted by islander

Welded together btw

No there not ... I would explain this again, but I cant be arsed, no one listens!

to do the same on a 6j rims, you would need 175 or 165 tyres. which would mean it drove like shit and had bugger all grip.

Thing is though Si how is that any different to any of the wheels you have had which you have stretched tires onto which were like 7J? You can always do it to a set of 8j / 9j wheels with weak offset.


The only issue with flipping wheels is ensuring that you have the arch clearance as you gain alot of negative offset. If you do then its cheap dish.




As for the orginal question ...

As Topi says, undo the bolts, knock the centre out (if it wont budge then apply heat to the outer band).

Turn the centre over, heat the band up again if nessesary and knock it back into place - I use long bolts to guide the centre so it lines up perfectly with the set bolt holes.

Get a mate to tig up the old valve hole and grind the weld down, then drill a new one on the outside of the rim and fit a bolt in tyre valve.

Common misconception is that the wheels are welded together - if you look at the photo of the ones above that I did you will see that its only the band sections that are welded and not the centres. The centres are only held in by bolts or + possibly an interferance fit so come apart easy enough.

[oli]

Originally Posted by eight-six

Common misconception is that the wheels are welded together - if you look at the photo of the ones above that I did you will see that its only the band sections that are welded and not the centres. The centres are only held in by bolts or + possibly an interferance fit so come apart easy enough.

says the man who's actually reversed some rims. I've read on loads of forums about the 'theory' of flipping rims but I know James has done it and did it well - wse to listen to him.

also if you have a set of rims with different widths/offsets you can mix and match.


can use motorbike valves angled to the outside of rim instead of welding (or inflate them off the car )

[jap-si]

didn't stretch onto 7j, always just normal tyres, anything less is as i said pretty rubbish. i once had some 175 65 or 70 off a micra on the 15's and they were so shit. no grip at all.

if you do it on a 9j then fair enough. you can still fit 185/195 tyres on them.

i also refer to this thread and agree with matt entirely.

what tire size rubbing arches

you need wide rims to do it. you also need ideally near to 0 offsets so like a plus 10 etc. otherwise the flip is going to be extreme. either this or mental bodywork to house them.

also to reply to it being no different to a low offset 7j, like matt said when you see loww offset 7j they are like -10 -20 at most. these are like -35 or similar.

[eight-six]

i also refer to this thread and agree with matt entirely.

Dosnt mean anything, flawed argument. The point here is that the wheels had to much offset for Andys car, irrespective of the width. Forget tire stretch and all that, makes no odds the wheels just didnt fit.

I could run those Ipuls without issue on the N2, which was the ultimate reason why I flipped them so I could skid on them without having to run with gay stock wheels.

f you do it on a 9j then fair enough. you can still fit 185/195 tyres on them.you need wide rims to do it. you also need ideally near to 0 offsets so like a plus 10 etc. otherwise the flip is going to be extreme. either this or mental bodywork to house them.

If the wheel was a 9j there would have been even more arch clearance issues, though so your in the same situation as you are with a 7j. the wheels dont fit.

It just comes down to how much arch you have to play with. FYI those wheels were a +17 orginally and I reckon they were a -25 or there abouts - fitted them to mine and they sat almost in the same place.

Starting with a lower offset does mean less offset when they are flipped and more chance of getting them under near stock arches.


Still if you have a decent amount of arch and want dished wheels for the cheap this is the way to do them

[jap-si]

the point here is andys car has a 30mm bolt on arch and they ar still too wide, your car has a 50mm flare and they fitted. i am going to stick my neck out and say that 50mm extra is not regular bodywork. lol

also about the 9j thing, it's tyre choice that helps the whole situation not wheel size. i managed to run 9j +6 on the front of my corolla. i had to back space them 15mm or similar (i forget now) to clear the coilovers and they still fit on standard bodywork.

how?

cos i had 185 55 tyres on them. this made the side wall alot more angled and missed the arch. putting 7j reversed wheels on therre wouldn't have fit, because it was the tyre that made the 9j work. the side wall of a 7j flipped with a 185 55 would have sat like andys and just not worked. again i would have needed mega work to get a 7j -25 on the front of a corolla with the tyre choice available.

first pic shows where the 9j sat sith stretched tyre. still a 185 remember. oh plus camber plates push all the way in.


here with over arches, and still the rim face is out.


here is a 7j with a 185 tyre on it. notice how it sits flush with the face?


so if the flipped 7j wheel sat in the same place as your current N2 wheels then there are 2 points to note.

1. to achive the stretch of the 9j i have pictured but on a 7j, you are going to need some very small tyres.

2. jamesAE86 going to need bodywork surgery to fit them, as it is pretty clear that 50mmplus wings that eight-six has are not normal.

[matt]

Originally Posted by eight-six

If the wheel was a 9j there would have been even more arch clearance issues, though so your in the same situation as you are with a 7j. the wheels dont fit.

not true. been explained pretty well above but basically wheel size isn't the problem, tyre size is. tyres hit arches so by putting it on a properly sized rim (9j FOR EXAMPLE) means you get some stretch, thus giving you clearance.

the fact flipping rims is only practical with close to 0 offset rims just proves its not worth the effort. Why lose your valve to get 15mm more dish?

[oli]

sorry to interrupt

is the eght-six forum down?

or is it my firewall

[eight-six]

not true. been explained pretty well above but basically wheel size isn't the problem, tyre size is. tyres hit arches so by putting it on a properly sized rim (9j FOR EXAMPLE) means you get some stretch, thus giving you clearance.

If you have a wider rim and flip it you still have the same problem. A flipped 9j will stick out further than a flipped 7j (as its obviously a wider rim) and then ultimatley whilst you might be able to get more stretch you will still have arch clearance issues - think about it the rim is wider so its going to stick out from the arch even further. Quite simply the wheels dont fit and have too great and offset for Andy's arches - he obviously though his arches were bigger than they were. Stretching tires is done by about 0.5% of the total car driving public and is a little trick to make wheels that "just" dont fit with correctly sized tires "just" fit with incorrectly sized tires.

[matt]

I wasn't talking about reversing a 9j, I meant buy a 9j in the first place rather than pissing about with wanky width reversed rims!

the principle still stands though, if you have a 7j and a 9j and the outside edge of each rim ends up in roughly the same place you're far more likely to avoid rubbing with the 9j (provided you don't use a 235 tyre or something haha)

[eight-six]

the point here is andys car has a 30mm bolt on arch and they ar still too wide, your car has a 50mm flare and they fitted. i am going to stick my neck out and say that 50mm extra is not regular bodywork. Lol

Simone! … were going in circles You have just said what I have been saying along, the wheels didn’t fit the arches. It was clear the wheels had a lot of offset. I suspect that my SSR’s wouldn’t fit on your car even with some stupid amounts of stretch our car but does that make them worthless? At the end of the day you buy wheels that are suitable for your car and concentrate on offset, width and diameter. As mentioned above tire stretch simply means you can cram slightly more wheel under the arch.

cos i had 185 55 tyres on them. this made the side wall alot more angled and missed the arch. putting 7j reversed wheels on therre wouldn't have fit, because it was the tyre that made the 9j work.

lol I know how tire stretching works. But if those 9j’s were -25 offset then it doesn’t matter how much stretch you put on a set of tires they still wouldn’t fit. You buy wheels to fit the car, tire stretch is just a way of getting a bit more wheel under and arch. At the end of the day if the wheels are well over sized then you can stretch till the cows come home they still won’t fit.

the side wall of a 7j flipped with a 185 55 would have sat like andys and just not worked. again i would have needed mega work to get a 7j -25 on the front of a corolla with the tyre choice available.

lol dude, how can you compare a +6 offset to a -25 offset? Of course they are going to stick out further – wouldn’t matter how much stretch you put on they would probably still foul. Hey some wheels just don’t fit!



Think everyone is missing the point here, flipping some wheels is a cheap way of getting more offset for minimal money. More offset makes the wheels stick out more so ultimately you need to know if you have the necessary arch clearance. It’s also very easy to do if you’re not a complete tard. But you need to make sure you have the arch clearance before you start. End of.


At the end of the day James asked how it was done and what the pro’s and cons are …. He now knows how easy it is to do. He knows the pro is massive amounts of dish on the cheap, he also knows that he will potentially have arch clearance issues due to the offset. Just like you would choose a wheel for your car based on size, width, offset you need to consider these things when flipping a set of wheels. Oh you also gain track, which can be advantageous.


Obviously it’s never going to be a simple as “turn the wheels over – now they are amazing/fit perfectly/clear the arches”, I think people need to appreciate that. Just as much as I cant go and fit some 15x13j -50 wheels to my car and expect them to be perfect fit.


TBH if Andy wanted rid of the Impuls I would have them back off him as they fitted the N2 fine and would be great for skidding so I don’t have to skid about on the fricking pap stock 86 wheels.


I am done on the matter … to much like hard work!


p.s Oli, yep the forum is fricked lad …

[jap-si]

Originally Posted by eight-six;

lol dude, how can you compare a +6 offset to a -25 offset? Of course they are going to stick out further – wouldn’t matter how much stretch you put on they would probably still foul. Hey some wheels just don’t fit!

I am done on the matter … to much like hard work!



p.s Oli, yep the forum is fricked lad …

actually according to an offset calc i just used there is only 6mm difference on the outer face between the 7j-25 and 9j+6. so in that instance, a stretch could make all the difference.

you are right you are done

fix eight-six bwooooooooooooooooooooooooooooooooy!