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Home > Visual / Audio Mods > Wheels & Tires > Wheel width/offset to match widebody kit... plz help

Wheel width/offset to match widebody kit... plz help

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Remy
  • Tire Changer
 First of all I wanna say I dun even know wut offset really is. I wanna get a widebody kit later on and switch to 19x8.5s. Now how do I have wheels pushed out to match to wider body?? I assume this is wut offset is. So wut offset should I be looking for??Another question is how do u find out how heavy a set of wheels are?? I wanna get light weight wheels but dun really know where to start...Plz help enlighten me. Thnx in advance.

[#] Jul 13, 2005 02:35pm
TRD_tC
  • Scion Guru
 get your body kit, and install it...then after that u can measure the extended inches you would need in a rim to match the kit. Then, you can check this place if it will clear your struts and all.http://marksink.com/tire_wheel_offset/and to check the weight of a wheel, well, ASK first... honestly, you dont- need al ightweight wheel since you wont be racing. Those forged rims arent- for you if your-e goign to daily drive and not race... you are afterall getting a widebody kit, so i can safely assume you-re not gonna race...If you want the rim, call in ask, and ask for the weight. if you-re afraid of human contact, check the internet, and google, you-re sure to find the weight. but then agian, u don-t need a lightweight rim anyway =)In terms of offset, check out other widebody kits and ask what kind of offset those guys have, how big their rims are,a nd they-ll give u a hint on what they got.

[#] Jul 13, 2005 07:52pm
Remy
  • Tire Changer
 Thnx TRD_tC, but just a few more questions. I can call and ask, but about how many lbs is light and wut-s normal for a wheel?? I just have no idea wut figure to compare to. And not that I plan on racing, but widebody is disastrous for racing...?? I can still push my car on occasion cant I??The light weight wheels thing, I just think the tC is such a fat boy. That and drive by wire are the only two things that I hate about the car. I just wanna reduce weight when possible without going too extreme. I dont think I really need my rear seats either...That reminds me of another thing. Getting 19s, wut will I do about my spare?? I can just put on my temp 17- when I need one? Or would I get a 5th 19- and will it fit in the well? Or~ will I be ditching the spare altogether and just carry a can of em fix-a-flat thingamajigs??

[#] Jul 14, 2005 11:28am
Thrawn
  • Oil Changer
 IMO, anyone can benefit from lightweight rims, whether their racing or not. Better handling, acceleration, and braking are attributes any driver could use in their daily commute. Especially to help offset some of the heavy -nicities- they may have added. But, I think TRD_tc is referring to the extremely expensive light weight rims made with functionality over form in mind. In which case, I would agree that there-s no need to go that extreme in terms of light weight rims when you-re not planning to hit the track.
-Remy- wrote:
Thnx TRD_tC, but just a few more questions. I can call and ask, but about how many lbs is light and wut-s normal for a wheel?? I just have no idea wut figure to compare to.
The stock 17- wheels are about 18lbs each. Some feel that-s pretty heavy, but IMO that-s rather light for a factory 17. If the rims you get are heavier than that, by lets say 5lbs or more, then you-ll probably notice a negative impact on the car-s performance (not dramatic but noticeable). Drop 5lbs off each rim and you-ll likely notice the opposite.
Quote:
And not that I plan on racing, but widebody is disastrous for racing...?? I can still push my car on occasion cant I??
I think he assumes you dont plan on racing since a widebody kit only adds style and weight. Style being functionless in a race and adding weight generally unwanted.
Quote:
The light weight wheels thing, I just think the tC is such a fat boy. That and drive by wire are the only two things that I hate about the car. I just wanna reduce weight when possible without going too extreme. I dont think I really need my rear seats either...
The wheels and tires are unsprung weight, the rear seats are not. Reducing 10lbs of unsprung weight per corner (40lbs total) will have a very noticeable affect on performance while dropping 40lbs of sprung weight, eg something inside of your car, wouldn-t make nearly as big of a difference. Instead of losing the backseat, go on a diet and loose some of your own weight. lol Will have the same effect and you-ll be happier with yourself.
Quote:
That reminds me of another thing. Getting 19s, wut will I do about my spare?? I can just put on my temp 17- when I need one? Or would I get a 5th 19- and will it fit in the well? Or~ will I be ditching the spare altogether and just carry a can of em fix-a-flat thingamajigs??
First, donÂ’t expect to find 19s that are 18lbs each, so, you could probably give up the hope of light rims if youÂ’re set on 19s. As for your spare, I would it assume youÂ’d be fine even w/ 19s. Not sure though, may want to ask around more about that.

[#] Jul 15, 2005 03:23pm
Remy
  • Tire Changer
 Thnx for all ur helpful replies Thrawn, ur quickly becoming my favorite forumer heh. About unsprung weight, arent wheels(+tires) pretty much the only things that count? And I rather lose my back seats cuz Im a 6 ft guy that weighs 145 lbs, I actually wouldnt mind gaining a few pounds myslf lol. Well, that and to rid my car of the minivan status due to my -roomie backseats- cuz all my friends got 2 door cars as well.One other thing is, wheel size and width. I thought it-s good to have bigger wheels, but now that I think about weight, unsprung at that, I might have to go for 18s... And having a WBK and wheels pushed out farther to match, is that not a good thing as well? It would lower the center of gravity and help cornering and wut not wouldnt it?? Then again, I could be wrong.

[#] Jul 18, 2005 08:15am
Thrawn
  • Oil Changer
-Remy- wrote:
Thnx for all ur helpful replies Thrawn, ur quickly becoming my favorite forumer heh.
:mrgreen:
Quote:
About unsprung weight, arent wheels(+tires) pretty much the only things that count?
Wheels, tires, calipers, and rotors. Just FYI, changing diameter even while maintaining the same weight will have an affect, since, in a sense, itÂ’s influencing the gearing. I wouldnÂ’t worry about that much though.
Quote:
And I rather lose my back seats cuz Im a 6 ft guy that weighs 145 lbs, I actually wouldnt mind gaining a few pounds myslf lol. Well, that and to rid my car of the minivan status due to my -roomie backseats- cuz all my friends got 2 door cars as well.
Eh? I don-t understand, having a roomy backset is a bad thing? lol They-re jealous because they can-t fit shit in their backseats and they-re just hatin-, ignore them. Seriously though, the last reason I would pull my back seats out is because some people think they-re -roomy.- That-s just me though.
Quote:
One other thing is, wheel size and width. I thought it-s good to have bigger wheels, but now that I think about weight, unsprung at that, I might have to go for 18s... And having a WBK and wheels pushed out farther to match, is that not a good thing as well? It would lower the center of gravity and help cornering and wut not wouldnt it?? Then again, I could be wrong.
Yes, having a lower center is a plus for handling, but, if your goal is performance, then there are other ways to accomplish that that don-t involve adding a heavy wide body kit. A simple suspension set, shocks/struts, springs, f/r sway bar set, and f/r tower brace set would cost less and benefit handling far more positively, w/o the added weight of a widebody kit. Add on a lip kit if you wanted to spruce things up. However, if your goal is primarily to enhance the looks, then by all means, get a wide body kit. Its your car, do to it what makes you happy. Just donÂ’t add a WBK thinking they-re made for performance as well.

[#] Jul 18, 2005 01:42pm
Remy
  • Tire Changer
 Im not getting a WBK or rims for performance purposes. While I do want to make my tC stand out from the crowd it-s not my only goal. I do want performance gains. Im just saying, while doing aesthetic upgrades, I wanna hurt performance as little as possible if I cant do the opposite.About the backseats, it-s just that when friends get together to do something, and we try to decide how many and which cars to take, my tC is just automatically first choice. But not cuz they appreciate the roomy backseats from the bottom of their hearts. I dunno, ur right, they-re just jealous. And I just recently found out that the backseats tilt back(duh!). I spent like almost an hour in the parking lot sitting in the backseat in awe. I might not be able to part with them things now...Im just really torn. I know for sure I want better performance. I love my tC and I want to give it better performance while keeping it streetable and not overly extreme. But I also want stand out looks. Im just trying to find a good middle ground I guess. Cuz there-s just no way that I will be able to keep myself from getting a AITracing or Obsidian WBK, they-re just too sexy.I might be frustrating you guys(Trawn and TRD_tC) who know more about cars with my foolish talks of wanting performance and at the same time contradicting by wanting aesthetics that hurt the former. I apologize if this is the case, but I-ve just begun to try to learn all about cars. But Im very enthusiastic about it and this will be a very precious learning experience for me over time. Plz forgive me for my lack of knowledge in these areas and continue to be generous with your feedbacks, positive AND negative. Thank you.

[#] Jul 22, 2005 10:10am
Thrawn
  • Oil Changer
-Remy- wrote:
Im not getting a WBK or rims for performance purposes. While I do want to make my tC stand out from the crowd it-s not my only goal. I do want performance gains. Im just saying, while doing aesthetic upgrades, I wanna hurt performance as little as possible if I cant do the opposite.About the backseats, it-s just that when friends get together to do something, and we try to decide how many and which cars to take, my tC is just automatically first choice. But not cuz they appreciate the roomy backseats from the bottom of their hearts. I dunno, ur right, they-re just jealous. And I just recently found out that the backseats tilt back(duh!). I spent like almost an hour in the parking lot sitting in the backseat in awe. I might not be able to part with them things now...Im just really torn. I know for sure I want better performance. I love my tC and I want to give it better performance while keeping it streetable and not overly extreme. But I also want stand out looks. Im just trying to find a good middle ground I guess. Cuz there-s just no way that I will be able to keep myself from getting a AITracing or Obsidian WBK, they-re just too sexy.I might be frustrating you guys(Trawn and TRD_tC) who know more about cars with my foolish talks of wanting performance and at the same time contradicting by wanting aesthetics that hurt the former. I apologize if this is the case, but I-ve just begun to try to learn all about cars. But Im very enthusiastic about it and this will be a very precious learning experience for me over time. Plz forgive me for my lack of knowledge in these areas and continue to be generous with your feedbacks, positive AND negative. Thank you.
It-s wonderful that you want to learn. If you-re serious about it and tuning your car then there-s a couple of things you should pick up immediately. That is the tC service manual and a good auto book, like -Auto Fundamentals.- The service manual will be an excellent reference for when you-re approaching a project. You-ll be able to better guess what tools you-ll need, time involved, and skills required for most any project you may tackle. Even if you-re only replacing a part w/ an aftermarket one, you-ll still have to take the factory part off, and the Service Manual will give you a good idea about the process required to do so. -Auto Fundamentals- is a pretty extensive book, that covers far more then just then Fundamentals. It-s actually used as a text book for some classes but it-s not so long that you couldn-t easily read it. After reading that I think you-ll have a pretty good idea about whatÂ’s going on underneath the hood. Read through those and start doing some of the little maintenance things you might normally have some else do, like oil changes, rotations, installs and so on. Even something as simple as an oil change will get you a little more familiar with your car then you were before. Back to the topic at hand... It-s ok to want it all, performance and a show car body, and you can have it all, to an extent. If you add on a heavy wide body kit, huge chrome rims, heavy car stereo equipment and so on, you can counter act all of that with proper engine and suspension components and tuning. Add a well tuned and built turbo to a properly prepped engine to any car, no matter how heavy, and that car will move. Add a balanced suspension and braking setup and it will handle the corners too. But, and this is a huge but, you better have some serious $$$bank$$$ to do it all. Also, keep in mind, even with a crazy turbo setup, someone who-s focused their efforts primarily on performance will still probably take you, even if you both had the same engine, brake, and suspension setup. That-s where the -to an extent- comes into play. If you want it all, youÂ’ll need to find a balance that works with your budget. E.g., find a WBK, or possibly just a body kit or lip kit, whose price will allow you to purchase a turbo kit to your liking as well, and a suspension setup thatÂ’s tuned or can be tuned for your setup. I would say try to find a kit thatÂ’s aerodynamically tested, but thatÂ’s rare. Beyond that, keep in mind the cost of tuning, maintenance, car down time/installation time, added insurance and other misc cost that will come into play when purchasing these various products.On a side note, something else you should seriously consider is investing some money into learning how to actually drive your car. If you plan on going fast and looking good, even if you donÂ’t plan on hitting the track or racing, it would be a wise investment to look into some defensive and/or performance driving classes. Ones that offer hands on, some even using your own vehicle.

[#] Jul 22, 2005 11:04am
Remy
  • Tire Changer
 Thnx for all the advice! I dont have rich parents nor am I the heir to a huge family fortune, but I work for my money, and with the tC-s payment being only $282 a month, it helps to put money into mods. I dont really have any other money eating hobbies either so my tC will get all my love and money. Well, the tC and the girl friend on the side. It-s true that she can be quite the money vacuum at times, but I have patience. I plan on doing things slowly and steadily prolly over the next three years or so. Being 25, we plan on getting married in 2 or 3 years, so I wanna finish before that and at the same time go out with a bang(so to speak). 5 years ago I might-ve said to hell with all this or just dumped the GF for mods, but patience is definitely on my side this time around lol. Which is why Im trying to learn all this so desperately, so I can plan things out better. I wanna do everything that can be done to my car, the question is just exactly wut and when. If I know wut to look for and how to compare, I can better plan my mods and chose more wisely as more parts come out on the market. Im most likely gonna wait on the turbo til at least next year, but I wanna at least have an idea of the big picture as a whole when it comes to modding my car.Doing things over time will prolly help keep driving my car fun. I started on small easy things like gauge panel/center console LED conversion, replacement inertior/exterior bulbs, and adding a short shifter. I am cursed to have no skills with my hands and all that took mad time, especially the freaking soldering, but it-s all been a fun learning experience for me. I-ll slowly move to bigger stuff. My good friend of 13 years is also an experienced bodyman so things like bodykit fitment/installation and other stuff like intake/exhaust installation come free for me, which also help a lot. So I think it should all really be doable. I definitely didnt just dream up a fat list of mods and throw reality out the window.All in all, thnx for all ur feedback and advice. I-ll try to find some good books to start on.

[#] Jul 22, 2005 02:40pm
TRD_tC
  • Scion Guru
 a shorter version to thrawn is...Question1: how fast you wanna go?Question2: how much money you got?Question3: how much bling you want?Question4: how much money you got?Question5: how much will my bling hurt my speed?Question6: how much money you got?hehe...theres always a sacrifice, but if you want it all, you-re gonna need $$$.... if you wanna learn, i use to always sit back in shops, read magazines and such and build my knowledge, and then start working on my own old car, which helped me develop a more clearer understanding.

[#] Jul 22, 2005 03:57pm
Remy
  • Tire Changer
 Should-ve ask this by now... but just what exactly is offset?? I read that the max offset we can have is 45, but that still doesnt really give me a grasp on the concept. Is the higher the number the farther outward the wheels?? So confusing... @_@

[#] Jul 29, 2005 08:27am
rsworksTc
  • Master Mechanic
-Remy- wrote:
Should-ve ask this by now... but just what exactly is offset?? I read that the max offset we can have is 45, but that still doesnt really give me a grasp on the concept. Is the higher the number the farther outward the wheels?? So confusing... @_@
The offset of a wheel is the distance from its hub mounting surface to the centerline of the wheel. The offset can be one of three types.Zero OffsetThe hub mounting surface is even with the centerline of the wheel.PositiveThe hub mounting surface is toward the front or wheel side of the wheel. Positive offset wheels are generally found on front wheel drive cars and newer rear drive cars.NegativeThe hub mounting surface is toward the back or brake side of the wheels centerline. -Deep dish- wheels are typically a negative offset.If the offset of the wheel is not correct for the car, the handling can be adversely affected. When the width of the wheel changes, the offset also changes numerically. If the offset were to stay the same while you added width, the additional width would be split evenly between the inside and outside. For most cars, this won-t work correctly.For a tC with Wide Body Kit the 45mm offset is pulling the wheel in to far. You will want some more like 20mm or smaller this way the wheel is pushed out futher to be flush with the fender.

[#] Jul 29, 2005 09:07am
Remy
  • Tire Changer
 Wow~ a diagram and everything! Thank you! ^^ So that-s wut offset is...

[#] Jul 29, 2005 12:15pm
guitarguru44
South River
New Jersey, US
  • Godlike Advisor
 i may be purchasing a kreative obsidian wbk today.... only cuz i got into an accident and the entire side is scratched and dented... so all in all it shouls come out to be a lot cheaper then if i was to buy it without the accident, oh well....

[#] Jul 29, 2005 01:03pm

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