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I changed my wheel /tire circumferance to hit boost quicker
Posted: Sat Jun 28, 2003 2:43 am
by Faultline
mY turbo set up pulls pretty well btween 3500rpms and 6500rpms.It cost over 3k, so I am broke and have stock steelies,..rather than Paying 800 for a tire/wheel pachage, i am optiong for new tires and lowereing spring for around the same price....I need a stiffer suspension to go withe stickier tiires and a turbo...I just put on 215/40/16s.. this chngeges my circle from roughly 78"to 72"..thats 12ft of distance from the formerly 13ft...given same rotations...so after the ride home...I believe I hit boost quicker..which really speed up acceleration...I feel faster ...but my odometer I believe is lying to me ...so it is just feel...so now my gears ar shorter i guess...but ther is plenty left at the high end...Imagine...6krpms in 5th gear...so.....any thoughts to confirm or refute this??????????
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Re: I changed my wheel /tire circumferance to hit boost quicker (Faultline)
Posted: Sat Jun 28, 2003 5:55 am
by satur9
changing to a smaller tire will lower the gearing and change the speedometer i think tirerack.com calculator will tell you the percentage of speedometer change.and somehere out there is a gearing calculator. but i would think you would have less traction with smaller tires (less contact patch) i guess its personal preference but wider tires just seem better.
Re: I changed my wheel /tire circumferance to hit boost quicker (satur9)
Posted: Sat Jun 28, 2003 6:37 am
by Faultline
I did not think about that...the contact tire patch...being smaller..but I guess it would be...but.....the tires are slightly widr than before..from 205 to 215..which would give a little more tire contact....It is just that it dawned on me , that the sooner I get to the 4k revs...then,...mor power for me...no matter what! so.,besides traction...I did this to get into boost sooner......and btw the tires are kuhmo estes 712..tks for the reply satur9
Re: I changed my wheel /tire circumferance to hit boost quicker (Faultline)
Posted: Sun Jun 29, 2003 11:25 am
by philndz
Runnin the Kumho Ecsta 711's over here and am practically in love w/ em...how you liking yours......if you havent yet then push them and push them they just cling in the corners....my vibe is on rails!!!
Re: I changed my wheel /tire circumferance to hit boost quicker (philndz)
Posted: Sun Jun 29, 2003 11:41 am
by Faultline
quote:Runnin the Kumho Ecsta 711's over here and am practically in love w/ em...how you liking yours......if you havent yet then push them and push them they just cling in the corners....my vibe is on rails!!!because I changed my circle smaller, it made it easier to spin the wheels , especially w/ lots of power,I was dissapointed when I left the tire shop ,and spun the tires easier in firts gear...beacause, I was looking for mor traction ...but then, pulling as hard a I can in 2nd and third, I got no tire chirps that I usually do.......so On my way to work tomorrow, I will test the curves along the faultline road, but I have yet to lower my vibe, which will realy help stiffen me up...over all , except for my lower 1st gear...I can tell that the traction is better,yeah Philndz, you and others posted how well you liked the kuhmos, and I am not disapointed TKS!