Okay... If I am running 215/45 17's.. will this run slower or faster than the stock 16's with Potenza's?

The 17's that I have are tons lighter than the stock rims/wheels... Any help I'd appreciate it. Thanks!

The tires are a little taller then stock so your gears will run out longer, your 60ft will probably suffer some. My 60ft sucked with my Actions and allterrains but that could be blamed on the tires. The launch felt good, but i thikn the wheel size held me back. Depends w here the weight on your wheels is. If it's near the hubs, it's probably not a bad thing at all.
Good luck :-)
Scott

per tireracks tire specifications...pick any brand and look at the specs

Bridgestone S-03 215-45-17 = 847 revolutions per mile
Bridgestone S-03 205-55-16 = 837 revolutions per mile

the 17" combo is marginally smaller

Originally posted by paintbing
The 17's that I have are tons lighter than the stock rims/wheels...
what wheel/tire combo are you running that is "tons" lighter than stock?

Originally posted by angus
what wheel/tire combo are you running that is "tons" lighter than stock?

Yeah, "tons" = 6000lbs'ish :p

Scott

going from stock 16's to 18's had no affect on my 1/4 mile times at all. I was actually a few 10ths faster with the 18's. but I think a tune up was to blame for that.
Ryan

rotational mass... howstuffworks.com ;)

The best thing to do if you're going to be racing on a track is to get Spinners. Don't laugh. As you accellerate from a stop, the spinners start to spin, and they retain that momentum, so as you slow down they continue to go at that speed, and then when you accellerate you go in the same direction that they're spinning and take some of the stored energy away from the spinners and it helps you to accellerate faster. This wouldn't help in the 1/4 mile, but on a road-track it would be great. Also it may hinder a quarter mile time, being that as you're accellerating you're not only driving the wheels but also that energy is being absorbed into the mechanism of the spinners. So it is a tossup.


:devil:

yea... spinners are really light too :rolleyes:

Originally posted by WolfDrive
The best thing to do if you're going to be racing on a track is to get Spinners. Don't laugh. As you accellerate from a stop, the spinners start to spin, and they retain that momentum, so as you slow down they continue to go at that speed, and then when you accellerate you go in the same direction that they're spinning and take some of the stored energy away from the spinners and it helps you to accellerate faster. This wouldn't help in the 1/4 mile, but on a road-track it would be great. Also it may hinder a quarter mile time, being that as you're accellerating you're not only driving the wheels but also that energy is being absorbed into the mechanism of the spinners. So it is a tossup.


:devil:

HAHAHAHAHAHA! take off the spinning part of a "spinna" and weight it, i bet it weights more than 25 lbs. stock weights 16.5 lbs. :rolleyes:

Originally posted by WolfDrive
The best thing to do if you're going to be racing on a track is to get Spinners. Don't laugh. As you accellerate from a stop, the spinners start to spin, and they retain that momentum, so as you slow down they continue to go at that speed, and then when you accellerate you go in the same direction that they're spinning and take some of the stored energy away from the spinners and it helps you to accellerate faster. This wouldn't help in the 1/4 mile, but on a road-track it would be great. Also it may hinder a quarter mile time, being that as you're accellerating you're not only driving the wheels but also that energy is being absorbed into the mechanism of the spinners. So it is a tossup.


:devil:

Dear god tell me this is a joke post
No one can be this stupid can they???

lets just hope so

anyway back to the topic at hand - the stock tires lack grip so power transfer from the rims to the tires to the ground would be low -> power loss

when i put on my heavier 18s, i felt better acceleration in motion but worse off the line acceleration. so tire compound is exceptionally important. so if u put some S03s on ur stockers, ur on ur way

try 16" ssr in front, under 10lbs! and 15"ssr in rear. I have a rwd wrx with dot slicks on the rear. M&H racemasters, 25.5"tall. yank the front up, it will!

Originally posted by turbo2nr
try 16" ssr in front, under 10lbs! and 15"ssr in rear. I have a rwd wrx with dot slicks on the rear. M&H racemasters, 25.5"tall. yank the front up, it will!

what time and speed at your running?


nvm

check out 'going fast'

Originally posted by turbo2nr
check out 'going fast'

I have run many low 11 sec runs, bet had to let off. Stock trans 4th gear ends @ around 125mph. Yes, I broke the trans, a long time ago. I now have an MRT dogbox. I got dogset "D" which ends @ only 120 in fourth. I ordered a different 4th gear but it was too high, From dogset "E". Brett Middleton is almost finished making me a 1.00 ratio fourth gear (22tooth/22tooth) It will allow me to go about 133mph@ about 10.80+/- . I am putting a STi rear end in now for a stronger rear diff. STi axles modifyied by "the driveshaft shop" to be O.K. for 800hp. Also a one piece, custom driveshaft. The flange is different on STi rear(larger). The legnth of a stock STi driveshaft will not fit because the six speed trans is longer(so, shaft is too short). I have removed everything from car not related to drag racing. I am hoping that my extreme weight reduction, high boost, and low rotational mass will yeild sub10.8 sec runs. I run 116 octane, dry ice on intercooler in pits, methanol/water inj., nitrous(to get turbo spooled on launch), a 500hp avo garrett turbo, top mount intercooler( less volume between turbo and motor= faster spool-up) Ice will get it cooler than ANY front mount. twenty-eight lbs. of boost so far and I will go up to at least 33lbs at shootout. I run cometic high boost head gaskets, crower pro con rods, JE forged pistons, just added an AVO lightened flywheel, and rwd conversion will be finished in about three weeks. I have an eight point roll cage and a custom aluminum pro-drag wing off trunk deck. no bumpers,sway-bars,airbags,sub-frame connector gone, all fwd stuff is coming out,crash bars, out.
I have hundreds of other mods, but you get the picture. I use to drag Buick Grand Nationals. GN



There ya go so you dont have to read a bunch of BS talking...

eightball, why are you on this forum? What are you looking for? Who are you helping? My bulid up and times are for real jack! this is not my first wrx and it is my 6th turbo drag car.

maby i don't know how to act on this forum so i will just follow you guys. I guess we are just suppost to throw our opinions at everybody and question why they are here, right? I was wrong to assume this is a technical forum of sharing info and problem solving. all there is, is a bunch of friends talking smack about nothing. if you are a comedian, go to "i think i'm funny".com, If you want to show off your amazing computer skills, go to "cumputer dorks.com" I thought this site was for gearheads? thats what i am

Originally posted by turbo2nr
Who are you helping?


IMO he was helping you. That post was meant to be here in the first place, that post got hijacked with a bunch of BS. So he was posting your post here so no one would have to read all the bs and keep this post on topic.

now i see the difference between new thread and post repli. I didnot even know what a thread was! I have just started the internet and this forum a week ago, so far i am not impressed with peoples attitudes. If someone sees that i , or anyone is doing something wrong. a helpful hint probably would be better than sarcasm.

Originally posted by turbo2nr
now i see the difference between new thread and post repli. I didnot even know what a thread was! I have just started the internet and this forum a week ago, so far i am not impressed with peoples attitudes. If someone sees that i , or anyone is doing something wrong. a helpful hint probably would be better than sarcasm.

That is why Eightball posted:
Originally posted by eightballrj
Is there a question or point to this post?? Or are you just stating what you have and what it could do?

He was just wondering where you were going with that.. You started a new thread, which was a bit confusing..

You came back with that attitude, when all he was asking was a simple question.. I would just chill out, people did not jump on you till you started talking crazy..