Wheels
Feb 3, 2002, 03:35 AM
#16
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Can those wheels be fitted without spacers? Would the correct offset for 18x8 be 38mm?
If I decide to fit a wheel that needs spacers in order to clear the Brembo calipers, would I need to reduce the offset in order to compensate for the spacer?
Does anyone know of any other brands that manufacture wheels in 18x8 to fit Evo VI and (if possible) do not need spacers?
Sorry for posting so many questions. I'm looking to buy a set of 18" wheels but would not like to damage the wheel bearings.
If I decide to fit a wheel that needs spacers in order to clear the Brembo calipers, would I need to reduce the offset in order to compensate for the spacer?
Does anyone know of any other brands that manufacture wheels in 18x8 to fit Evo VI and (if possible) do not need spacers?
Sorry for posting so many questions. I'm looking to buy a set of 18" wheels but would not like to damage the wheel bearings.
Feb 3, 2002, 09:34 PM
#17
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In fact all wheels in this thread are available in the right sizes for an Evo 6. BBS also make wheels in the right offset (can't remember the type) and yes, you would have to add offset and spacer to get to the right amount of 38mm.
Feb 23, 2002, 06:31 PM
#18
does the evo V have the same offset as the evo VI? also, why 18s? just for looks? will this take away from the performance of the vehicle? if you have a light 18 wheel, would this make a difference? whats the best size wheel for optimal performance? thanks
Feb 23, 2002, 07:35 PM
#19
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Originally posted by japspec4g63
does the evo V have the same offset as the evo VI? - Yes
also, why 18s? - To fit brakes
Will this take away from the performance of the vehicle? yes
if you have a light 18 wheel, would this make a difference? Can you state that clearly please?
does the evo V have the same offset as the evo VI? - Yes
also, why 18s? - To fit brakes
Will this take away from the performance of the vehicle? yes
if you have a light 18 wheel, would this make a difference? Can you state that clearly please?
Feb 24, 2002, 04:16 AM
#21
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On an 18 ich wheel, a lot of weight is further away (0.5 inch further) from the hub. As radius plays a role in the equation for centrifugal force, I would have to work out how much weight you need to take off the total weight when increasing radius by 0.5 inch. Cant find the formula at the moment.
As a general rule, the lightest wheel will be the best, provided it is not made out of fragile materials that will deteriorate when used hard.
I would ONLY fit 18 inch wheels if I intend to upgrade the brakes.
Hoyever, if you do not want to upgrade the brakes, you can still get lighter 17 inch wheels.
As a general rule, the lightest wheel will be the best, provided it is not made out of fragile materials that will deteriorate when used hard.
I would ONLY fit 18 inch wheels if I intend to upgrade the brakes.
Hoyever, if you do not want to upgrade the brakes, you can still get lighter 17 inch wheels.
Mar 23, 2002, 03:53 PM
#22
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18" Wheels
Claudis,
I have just ordered some 18" BBS Challenge Wheels but have the
option for an additional £100 I can have 19" BBS wheels.
Would this be a bad move.
I have posted the same question on the Lancer Register but haven't
received any feed back.
Can anyone tel me why 19" wheels would be a bad move. I do
intend to do a cuople of track days this year.
Many Thanks
Skeletor
I have just ordered some 18" BBS Challenge Wheels but have the
option for an additional £100 I can have 19" BBS wheels.
Would this be a bad move.
I have posted the same question on the Lancer Register but haven't
received any feed back.
Can anyone tel me why 19" wheels would be a bad move. I do
intend to do a cuople of track days this year.
Many Thanks
Skeletor
Mar 23, 2002, 04:23 PM
#23
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Hi Skeletor
Welcome to he board first of all, just looked at your car's pictures!
The thing with bigger wheels is that the bigger they are, the more they weigh (as long as they retain the same strength). Which increases unsprung weight and reduces the car's responsiveness and the roadholding (not by THAT much, but you can tell the difference). More importantly, with increasing wheel radius, braking force decreases. Therefore, if you have 17 inch wheels that weigh 10 kg each and 18 inch wheels that weigh 10 kg each, the car will brake less good with the 18 inch wheels. Unless the 18 inch wheels are sufficiently lighter, fitting some will decrease performance.
Think about fitting 19 inch wheels!
That would be really counterproductive! 
The two reasons for fitting 18 inch wheels would be:
- to increase performance in the sense that they are so much lighter that brake force actually increases
- to be able to fit, say, an AP Racing 362mm 6 pot front brake kit
Do you know how much an 18 inch BBS Challenge wheel weighs?
Welcome to he board first of all, just looked at your car's pictures!
The thing with bigger wheels is that the bigger they are, the more they weigh (as long as they retain the same strength). Which increases unsprung weight and reduces the car's responsiveness and the roadholding (not by THAT much, but you can tell the difference). More importantly, with increasing wheel radius, braking force decreases. Therefore, if you have 17 inch wheels that weigh 10 kg each and 18 inch wheels that weigh 10 kg each, the car will brake less good with the 18 inch wheels. Unless the 18 inch wheels are sufficiently lighter, fitting some will decrease performance.
Think about fitting 19 inch wheels!
That would be really counterproductive! The two reasons for fitting 18 inch wheels would be:
- to increase performance in the sense that they are so much lighter that brake force actually increases
- to be able to fit, say, an AP Racing 362mm 6 pot front brake kit
Do you know how much an 18 inch BBS Challenge wheel weighs?
Mar 23, 2002, 11:33 PM
#25
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Wheels
Cheers Claudius,
It looks like the BBS only have a slight increase in weight over the OZ so shouldnt be to much of a problem.
The reason for changing is purely cosmetic.
I will be going down the A.P. route but not at the moment. Have my money put aside for the wheels and the GEMS engine management.
Skeletor
It looks like the BBS only have a slight increase in weight over the OZ so shouldnt be to much of a problem.
The reason for changing is purely cosmetic.
I will be going down the A.P. route but not at the moment. Have my money put aside for the wheels and the GEMS engine management.
Skeletor
Mar 24, 2002, 05:38 PM
#26
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Ah, I already wanted to say that there isn't much point from a performance view to upgrade to 18s, actually there's no point, cause there is no need for brakes of that size for an Evo. But as it's for cosmetic reasons,it's ok I suppose....well..... 
?
Nov 28, 2002, 11:01 AM
#29
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Originally posted by Claudius
The thing with bigger wheels is that the bigger they are, the more they weigh (as long as they retain the same
strength). Which increases unsprung weight and reduces the car's responsiveness and the roadholding (not by
THAT much, but you can tell the difference). More importantly, with increasing wheel radius, braking force de
creases.
The thing with bigger wheels is that the bigger they are, the more they weigh (as long as they retain the same
strength). Which increases unsprung weight and reduces the car's responsiveness and the roadholding (not by
THAT much, but you can tell the difference). More importantly, with increasing wheel radius, braking force de
creases.
the rotational weight increases *and* is located further away from the center of
rotation. (Imagine swinging dumbbells at armlength instead of with arms bent at
the elbow.) More force is required to spin up the bigger wheels. A corollary of
that is that the bigger wheels/tires stores more kinetic energy which means the
same brakes will now have to do more work slowing them down.
Another wrinkle with bigger wheels/tires is that it's possible to end up
with a larger overall diameter, resulting in taller gearing (lower numerically)
which will hurt acceleration.
The advantages of a larger wheels/tires combo would be: shorter sidewalls
(generally), which helps steering feel and prevents deformation of the
contact patch under stress; a larger (generally) and flatter contact patch.
In my experience, however, switching to a premium performance tire will
help much more in the way of traction than any increase in contact patch.
Because of the above reasons, I like to fit as *small* a wheels/tires combo
as I can. Also because of those reasons, Street Prepared and Prepare
autocross Miatas usually fit big fat 13" wheels/tires instead of the stock
14" or 15".
Nov 28, 2002, 11:08 AM
#30
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From aqn@panix.com Thu Nov 28 13:41:40 EST 2002
To: forums.evolutionm.net
Subject: Re: Wheels
X-To: evolutionm.net :: Evo Forums :: Lancer Evo Tech Forums :: Suspension / Brakes / Wheels / Tires :: Wheels
It might be the difference between bolt hole configurations and offsets.
The manufacturer's number may be with the largest possible offset and
largest possible number of bolt holes... I can easily see a difference
of over a pound between four-bolt 30mm offset vs six-bolt 43mm offset wheels.
To: forums.evolutionm.net
Subject: Re: Wheels
X-To: evolutionm.net :: Evo Forums :: Lancer Evo Tech Forums :: Suspension / Brakes / Wheels / Tires :: Wheels
Originally posted by Claudius Strange thing is the
manufacturer says it weighs 7,3 kg and Ralliart Germany whom I phoned and
asked for the weight said "wait", went to weigh it, came back on the phone
and said 7,9kg.
manufacturer says it weighs 7,3 kg and Ralliart Germany whom I phoned and
asked for the weight said "wait", went to weigh it, came back on the phone
and said 7,9kg.
The manufacturer's number may be with the largest possible offset and
largest possible number of bolt holes... I can easily see a difference
of over a pound between four-bolt 30mm offset vs six-bolt 43mm offset wheels.