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18" TRD wheels/tires fitment question...

Discussion in 'Gen 3 Prius Accessories and Modifications' started by deltron3030, Nov 28, 2009.

  1. deltron3030

    deltron3030 New Member

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    Thinking about picking up a set of these with tires (got a really good price worked out).
    I wanted to know if there are going to be any major technical issues with running this set up
    here are the details so far:


    car= Gen III package II
    tires = 225/40/ZR18
    wheels = TRD 18" black wheels (18 x 7.5), 5 x 100 lug pattern, offset +42mm, TPMS compatible

    PS. i'd like to thank, in advance, all the dont-do-this-because-its-a-prius posters for staying out of this one as well as the get-these-instead's. like it or don't, its cool with me...just need some fitment advice for this particular setup
    thanks!

    [​IMG]
     
  2. ALL_600D

    ALL_600D New Member

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    GO FOR IT! The TRD rims look great. I was thinking of that too but I came up on a cheap set of 2008 scion tc rims which i painted black. Only thing is, you will notice a difference in fuel economy. It's going to be a little noisier in the cabin as well. Even with my 17's, its very noticeable. Also with a bigger wheel circumference, your MPH might not be calibrated with true speed. But as far as looks, A++++++++
     

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  3. mastercut

    mastercut New Member

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    Damn!!!! very good, ALL_600, how u did the back glass on the lamps? i tought to put 235/35/19 .
    sorry for my english
     
  4. deltron3030

    deltron3030 New Member

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    All 600, i said it before but get that top blacked out, it'd be an amazing touch
     
  5. austingreen

    austingreen Senior Member

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    I see 829 rev per mile on those versus 831 on my oem wheels. mph should be very close. They should fit fine, make sure to get your wheels aligned after you put the new tires on.

    I am getting 205/50R17s put on my prius this week. Best of luck, let us know how it drives afterwards.

     
  6. F8L

    F8L Protecting Habitat & AG Lands

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    The tires will be what kills your milage despite the rims being the same weight. You have very few choices for low rolling resistance in that size. Basically you are stuck with performance tires and those eat up your fuel efficiency. :(

    The rims look great though!
     
  7. cairo94507

    cairo94507 Active Member

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    What is it about putting new tires on a new car that requires an alignment? If the original tires are wearing well, and the car has not hit something to alter the alignment, why spend the money. The OP has a Gen III Prius.... how many miles could it have on it? Now, if it was a couple of years old and the current set of tires were not wearing well, then spend the money.
     
  8. austingreen

    austingreen Senior Member

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    Its because the tires are a different diameter and width than the ones coming off the car. You don't need one if they are the same size, as you said. I'm not quite sure on the prius setup, and if things have changed, I've wasted a little money. I am no expert.

     
  9. cairo94507

    cairo94507 Active Member

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    a wheel alignment has nothing to do with the actual wheels you install. It aligns all of the suspension points to correct the angles of the wheel. So any wheel you install, assuming it is not a damaged wheel, will not change alignment specifications.
     
  10. banshee08

    banshee08 Member

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    Actually the diameter of the wheel and tire together can alter the suspension geometry. I would always get an alignment after every tire or wheel change. Tire dimension even differ between manufacturers. It is a cheap $60 compare to destroying a $1000 set of performance tires which will most likely last 15k miles.
     
  11. deltron3030

    deltron3030 New Member

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    according to this site WebCars! Tire/Wheel Compensation Calculator the stock 15"s circumference is 78.4779 inches
    and the 18" circumference is 78.8118 inches

    speedometer reading is 99.5% of true speed.

    Indicated speed: 10 mph. Actual Speed: 10.0 mph.
    Indicated speed: 15 mph. Actual Speed: 15.0 mph.
    Indicated speed: 20 mph. Actual Speed: 20.0 mph.
    Indicated speed: 25 mph. Actual Speed: 25.1 mph.
    Indicated speed: 30 mph. Actual Speed: 30.1 mph.
    Indicated speed: 35 mph. Actual Speed: 35.1 mph.
    Indicated speed: 40 mph. Actual Speed: 40.1 mph.
    Indicated speed: 45 mph. Actual Speed: 45.1 mph.
    Indicated speed: 50 mph. Actual Speed: 50.2 mph.
    Indicated speed: 55 mph. Actual Speed: 55.2 mph.
    Indicated speed: 60 mph. Actual Speed: 60.2 mph.
    Indicated speed: 65 mph. Actual Speed: 65.2 mph.
    Indicated speed: 70 mph. Actual Speed: 70.2 mph.
    Indicated speed: 75 mph. Actual Speed: 75.3 mph.
    Indicated speed: 80 mph. Actual Speed: 80.3 mph.
    Indicated speed: 85 mph. Actual Speed: 85.3 mph.
    Indicated speed: 90 mph. Actual Speed: 90.3 mph.
    Indicated speed: 95 mph. Actual Speed: 95.4 mph.

    no big deal, unless im looking for an intensely accurate odometer reading after hundreds of thousands of miles have been logged on the car....does this sound right:

    at 250,000 miles on the odometer, i'll actually have logged 251,000 miles?
     
  12. ALL_600D

    ALL_600D New Member

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    I removed the taillights and tinted them with Vinyl tint. You can find some on ebay. Search "rvinyl tint" in ebay and there are several listings.
     
  13. mastercut

    mastercut New Member

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    i looked in ebay and even in rvinyl.com but there's no kit for our toyota prius 2010. how u did??
     
  14. 0-50MPG

    0-50MPG New Member

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    Lovin d looks on ur ride ALL 600D. i specially like what you've done to the toyota badge.

    d black wheel, black badge n blacked-out tail lights give it an aggressive look.:rockon:

    TC wheels? i assume that's 5x100?
     
  15. ALL_600D

    ALL_600D New Member

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    Yeah, they are 5x100.
     
  16. ALL_600D

    ALL_600D New Member

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  17. deltron3030

    deltron3030 New Member

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    OK guys, new issue. and it seems like its coming up more and more these days.

    I got the 18" TRD's (used) with tires for about $450. new each wheel alone is $212 so pretty ok so far...

    but, then I started to add up the expenses of switching over the TPMS from the stock tires, and rebalancing, and fixing curb rash on one of them and the more i thought about it, I'm getting into the range of the Motegi's with wheels from tirerack (for a few hundred more)...

    my issue is this, what the heck to do:

    TRD:
    pros
    -love the look
    -approx. 45 lbs per wheel/tire
    -i already own em, and overall are/were cheaper than any other option
    cons
    -approx. 45 lbs per wheel/tire
    -would have to switch over the tmps
    -fixing curb rash on one wheel

    Motegi:
    pros
    -I love the look
    -19lbs per wheel (likely 39lbs per wheel/tire)
    -brand new wheels/tires
    -balanced already
    -I could likely take my TPMS out of my stock tires and mail em to tirerack to install free and get a free balance afterwards.
    cons
    -more expensive to me

    before anyone mentions it, I do know that it was dumb of me to buy the wheels before considering this stuff, but I also know I can turn these TRD's around for the same money, maybe more if I clean em up.

    thanks in advance!!

    ps.
    -will the prius really experience hyper-accelerated parts wear from the added unsprung weight?
     
  18. ALL_600D

    ALL_600D New Member

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    It only cost me $120 to remove the TPMS from my stock 2010 Prius wheels to my new Scion wheels. It took the guy roughly a little more then an hour. He even installed regular valve stems on my stock Prius wheels.

    As far as curb rashes, the cheapest fix is to buy "High Performance Black DupliColor Wheel Paint." They're about $6 bucks a can and are made specifically for wheels. Just tape off section that won't be painted. Use several light coats over one heavy coat. Although the curb rash is still there, it's at least disguised or camouflaged. Cheap fix for a nice set of wheels.