Discuss your 2000-2005 Bonneville SE, SLE, SSEi, Buick Le Sabre 00-05 and Buick Park Avenue 97-05. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
I have have decided it's time for a wheel upgrade. I plan on going with a 20x8.5 rim with 245/35/R20 tires all around.
Here's a link to a tire height chart http://www.wheelcityusa.com/tires/chart.htm (VERY USEFUL)
original tire is 235/55-17 making the height 27.18" the 245/35/R20 is 26.75" will this cause a low tire pressure message on my DIC?
here's a pic of the rims if anyone was curious
Disabled DRL's. Cleared the front turn signals lights. Infinity Kappas all around. Stainless. up swept quad exhaust tips. 180 T-stat, autolite 104's. 42k miles on motor with new LIM. 80k on car
Agreed. Most likely it will not be tripped but if it should a one time reset will most likelyy cure.
Your speedometer will be off by about 1.6%; so when it says 60 you will really be doing 59.
~Mad Myche from Around Milwaukee~ wrote:Contrary to what some may think... I have not lost touch with reality, rather; reality cannot keep up with me
thanks for the info guys. i expected it to affect the speedo that's why i chose a size close to the original OD
Disabled DRL's. Cleared the front turn signals lights. Infinity Kappas all around. Stainless. up swept quad exhaust tips. 180 T-stat, autolite 104's. 42k miles on motor with new LIM. 80k on car
Sirius wrote:Think about it. You’re tooling down the road in your Prius, knowing full-well that this thing being green is as big a sham as federally mandated ethanol-enriched gas, Russia pulling out of Ukraine, and Obamacare.
Be nice ed, not everybody shares your opinion of wheels. I would watch out for potholes, my 18s Have hit a few that hurt pretty bad, I imagine 20s would be worse.
2000 ssei gone but not forgotten
Current fleet:
2009 G8 v6, 2009 Avalanche LTZ, 2013 Volt
Be nice ed, not everybody shares your opinion of wheels. I would watch out for potholes, my 18s Have hit a few that hurt pretty bad, I imagine 20s would be worse.
00Beast wrote:Less off-topic than Lane's Heated Steering wheel, but yeah, back to the topic.
1.6% accuracy isn't too bad. It's within the same realm as when people go to different tire sizes when changing rim diameters. My personal rule of thumb is to keep things less than 2.0%. 235/40/20 is much closer, your speedometer will only be 0.8% off. Not sure on tire availability in this size.
As a side note, my speedometer got more accurate when I went from 225/60/16 to 235/55/17 in the '95 SSEi. The 17's wheel/tire package was 2.1% taller (versus your 1.6% shorter), canceling out the inaccuracy from the factory (read via GPS). Be wary of rubbing if you go bigger.
I'm not sayin', I'm just sayin'. Good luck, I hope they're what you want.
Bye Bye: RIP sandrock
Sirius wrote:Think about it. You’re tooling down the road in your Prius, knowing full-well that this thing being green is as big a sham as federally mandated ethanol-enriched gas, Russia pulling out of Ukraine, and Obamacare.
Not necessarily, considering these cars came with 18's(gxp) factory. 20 isn't that big of a jump. If done tastefully with the correct size tire I could see it working.
2000 ssei gone but not forgotten
Current fleet:
2009 G8 v6, 2009 Avalanche LTZ, 2013 Volt
It's less of the size of the wheel and more of the wheel pictured above Drew...
Bye Bye: RIP sandrock
Sirius wrote:Think about it. You’re tooling down the road in your Prius, knowing full-well that this thing being green is as big a sham as federally mandated ethanol-enriched gas, Russia pulling out of Ukraine, and Obamacare.
Yeah. I'm not big on the whole stormtrooper thing...
Bye Bye: RIP sandrock
Sirius wrote:Think about it. You’re tooling down the road in your Prius, knowing full-well that this thing being green is as big a sham as federally mandated ethanol-enriched gas, Russia pulling out of Ukraine, and Obamacare.
will cause no problems at all i have been doing this for 7 years now. little tweak with hp tuners and speedo will be fine as well. yes i know my rear is sagging... lol new shocks are on and the sensor is on the way
Last edited by excessive81 on Wed Feb 29, 2012 9:52 am, edited 2 times in total.
excessive81 wrote:will cause no problems at all i have been doing this for 7 years now. little tweak with hp tuners and speedo will be fine as well. yes i know my rear is sagging... lol new shocks are on and the sensor is on the way
WOW that looks sweet! and as far as my wheel choice goes, this is something i have been pondering for well over a year and is not my 1st or only wheel i think will look good on my car. If i could be convinced that i could use a 5x114.3 instead of 5x115 i would more than likely go with a 20x8.5" TSW Londrina 10 spoke gunmetal with mirror lip.
I have read that they will fit and perform with no issues and i have read they wont fit. I suppose i should just contact TSW Wheel.
Disabled DRL's. Cleared the front turn signals lights. Infinity Kappas all around. Stainless. up swept quad exhaust tips. 180 T-stat, autolite 104's. 42k miles on motor with new LIM. 80k on car
Provided you either have the right hub diameter or a hub-centric ring, you can use 5x114.3 with no issues. A 20x8.5 might be a little wide though. Stock wheels are 7" wide.
Bye Bye: RIP sandrock
Sirius wrote:Think about it. You’re tooling down the road in your Prius, knowing full-well that this thing being green is as big a sham as federally mandated ethanol-enriched gas, Russia pulling out of Ukraine, and Obamacare.
00Beast wrote:Provided you either have the right hub diameter or a hub-centric ring, you can use 5x114.3 with no issues. A 20x8.5 might be a little wide though. Stock wheels are 7" wide.
unfortunately the aftermarket wheel choices are slim when it comes to 20x7". when searching for wheels online all sites say my rim and tire choice will fit. One uses the words. "Guaranteed to fit" but that same site says 114.3 will not fit
thanks for the hub-centric info. i have read that elsewhere as well
Disabled DRL's. Cleared the front turn signals lights. Infinity Kappas all around. Stainless. up swept quad exhaust tips. 180 T-stat, autolite 104's. 42k miles on motor with new LIM. 80k on car
