wheel offset

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JimmyC379
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wheel offset

Post by JimmyC379 »

Hi All,

I just have a question regarding wheel offsets. Please correct me if I am wrong but I believe the 1984 Excel had a +8 offset. Has anyone fitted a +15 offset to an Excel? Is this correct, is a +15 offset only 7mm over standard?


Thanks,

Jimmy
1984 Lotus Excel
1998 Peugeot 306 GTI 6

RRHANS
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Re: wheel offset

Post by RRHANS »

Should be OK, but do not go anyfuther.
Wheels will be 7mm deeper in the arches.
Also depends on the width of the rim you want to fit.

Lotusbits has 15" compomotive with the right offset.

I am running on konig rewind 16X7 ET 0 so

Someone is even running 17X7 ET 15 on this forum.

I am not sure if offset was the same on narrow body and widebody's.
Hans

Lotus Excel SE full leather, aircon, 16" Konig rewind, twin 104 cam's
Triumph TR6 CR 11/1, fast road 89, roller rockers, pulse header, Overdrive
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JimmyC379
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Re: wheel offset

Post by JimmyC379 »

Thanks RRHANS,

These are the wheels I like they in 16 x 8 they have a +15 offset http://www.aaimotorsports.com.au/xxrwhe ... _501.shtml#
1984 Lotus Excel
1998 Peugeot 306 GTI 6

RRHANS
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Re: wheel offset

Post by RRHANS »

Good news! I believe that narrowbody's have 14mm offset.
I will try to verify that in the service notes.

I am worried about the 8" width of the wheels.

1st problem does it fit in the arches?

These are the tech details of my setup.

Wheels are Konig Rewind Graphite 7 X 16 ET 0 4 X 114.3
Hubcentric rings 73-60
Bolts conical 12 X 1.5
Front tyres 205 45 16 Uniroyal Rainsport 3
Rear tyres 225 40 16 Uniroyal Rainsport 3

So compared to my setup yours would be:

Inside of wheel arch.

standard ET 14 new wheels ET 15 so 1 mm more inboard
mine std ET 8 my wheels ET 0 so 8 mm more outboard

mine are 7" wide and yours would be 8" wide so rim lip will be 13 mm more inboard.

So difference between your set up and mine would 21 mm more inboard.

outside of wheelarch.

our difference in ET is 9mm + your rim is 13mm more to the outside so yours would stand 4mm wider than mine

There should not be a problem on that side as long as you do not exagerate in tyre size,
(225 40 16 works for me) and if cavity under the arches on a narrowbody is the same as under a widebody

I will check on my car if I have 2cm of space left between the wheel and the chassis, ARB, on full lock.

2nd Problem

I think you can not go wider than 225 40 16 (especialy on the front).
This size will look streched on 8" wide wheels.
So wheels will be very exposed, no rubber to protect the lips.

This topic might be of intrest to

http://www.lotusexcel.net/phpbb/viewtop ... 5&start=15
Hans

Lotus Excel SE full leather, aircon, 16" Konig rewind, twin 104 cam's
Triumph TR6 CR 11/1, fast road 89, roller rockers, pulse header, Overdrive
Ferrari Mondial Cabriolet 3.2 quatrovalvole
Range Rover Sport HSE luxury
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JimmyC379
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Re: wheel offset

Post by JimmyC379 »

Thanks again RRHANS, for some strange reason the wheels fitted to my Excel are 14 x 8 (that is what is stamped on them). Most readings suggest they should be 14 x 7 so I think all this in mind the XXR wheels may be a goer....
1984 Lotus Excel
1998 Peugeot 306 GTI 6

RRHANS
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Re: wheel offset

Post by RRHANS »

I have measured behind the wheels @ full lock and it should be ok.

I have also found out in the Service Notes that standard 14" 4 spoke speedlines have a offset of 19
Optional '84 14" 8 spoke have an offset of 8 .
Hans

Lotus Excel SE full leather, aircon, 16" Konig rewind, twin 104 cam's
Triumph TR6 CR 11/1, fast road 89, roller rockers, pulse header, Overdrive
Ferrari Mondial Cabriolet 3.2 quatrovalvole
Range Rover Sport HSE luxury
Mini clubman Hampton

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JimmyC379
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Re: wheel offset

Post by JimmyC379 »

I found this pretty cool site it takes the trouble out of picking the correct offset: www.rimsntires.com/specs.jsp
1984 Lotus Excel
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MrCoolA
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Re: wheel offset

Post by MrCoolA »

RRHANS wrote:
Lotusbits has 15" compomotive with the right offset.

Worth giving Mike a call on that as i run his compomotives and i think they are some thing like 15 offset and thus sit a bit further in the arch.....and in my veiw look better all though i have an SE it might be different on the narrow bodied
Previously Jerry (Taylor)
Now "Black Flag"


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JimmyC379
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Re: wheel offset

Post by JimmyC379 »

My Photoshop vision of XXR501, 16 inch wheels:

Image

My Photoshop vision of ROTA D2, 17 inch wheels:

Image

My Photoshop vision of OZ Esprit Wheels on an Excel:

Image
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ttedj
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Re: wheel offset

Post by ttedj »

I am seriously thinking about changing the wheels. I think bigger would look better (16") and with the state of the roads around Lincolnshire, the OZ alloya ar egetting a bit bent out of shape. I've got the worst as the spare but I'm paying a fortune in balancing...

I think the OZ Nova as fitted to Esprit's about 2001 look good. The Konig Foil looks similar, although would need a 25mm adapter.
http://www.wheelbasealloys.com/16_Inch_ ... heels__726

Can I justify about £1000 all in though?

Ted
1989 Lotus Excel
1974 MG Midget
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2008 VW TIGUAN (wife's)
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Re: wheel offset

Post by AndyC »

ttedj wrote:I am seriously thinking about changing the wheels. I think bigger would look better (16") and with the state of the roads around Lincolnshire, the OZ alloya ar egetting a bit bent out of shape.
Don't forget, larger wheel = lower profile = more easily damaged

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MrCoolA
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Re: wheel offset

Post by MrCoolA »

these are the Compomotives from Mike Taylor, they are 15" i think they look great, i would have probably gone for 16" if i had thought about it, but i think the 15" look good, especially as they site slightly further in to the arch


Image



Image
Previously Jerry (Taylor)
Now "Black Flag"


Lotus Excel SEI1989 253.6hp 190lbft
Lotus Elise S3 1.6. Motorsport Green 2011.

ttedj
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Re: wheel offset

Post by ttedj »

They are a good looking wheel. I'm still undecided. I may get some adapters shipped from the states so I can fit any wheel 4*100 et40 as there seems to be a lot of choice.

Ted
1989 Lotus Excel
1974 MG Midget
2006 AUDI A4 3.0 Tdi quattro
2008 VW TIGUAN (wife's)
2 Black cats

ttedj
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Re: wheel offset

Post by ttedj »

I have found these:

http://www.wheelheaven.co.uk/wheel_Imol ... _index.php

Is 17* 7.5 too big? Fitted with 215/45/17 the total size is almost exactly the same as the original OZ with 215 50r15. Anyone fitted low profile tyres? Does it affect the handling greatly? When I went to low profiles on the midget for sprinting, it became a pig on the road, although they were a lot wider.

Ted
1989 Lotus Excel
1974 MG Midget
2006 AUDI A4 3.0 Tdi quattro
2008 VW TIGUAN (wife's)
2 Black cats

RRHANS
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Posts: 524
Joined: Sat Jul 18, 2009 11:43
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Re: wheel offset

Post by RRHANS »

This is what 16" looks like.

Image
Hans

Lotus Excel SE full leather, aircon, 16" Konig rewind, twin 104 cam's
Triumph TR6 CR 11/1, fast road 89, roller rockers, pulse header, Overdrive
Ferrari Mondial Cabriolet 3.2 quatrovalvole
Range Rover Sport HSE luxury
Mini clubman Hampton

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