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Old Dec 16, 2006 | 07:35 AM
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Default Car seems slower

I have a 99 TA M6 mostly stock except for lid,and transmission rebuild with new spec 3 clutch,aluminum fidanza flywheel,any ways i bought some Z06 rims 17x9.5 275/40 front and 18x9.5 with 295/35 tire in rear.Looks alot better than stock 16in. rim,but the car now seems slower is this normal did i go to big? Any ideas...thanks
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Old Dec 16, 2006 | 08:06 AM
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The reason it might look a little lower is probably your rear tires. Being that they are 295/35/18s, they have a taller sidewall than the tire that's supposed to be on there as far as your rear wheels go, which is 275/35/18. The taller tire closes the gap from the top of the tire to the fender a bit more, so that might make the car appear to be lower.

Your front tires are the correct overall height, which is 25.6", your rears are about an inch taller overall.

Manny
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Old Dec 16, 2006 | 08:16 AM
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he said slower?
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Old Dec 16, 2006 | 08:36 AM
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Originally Posted by MannyZ28
The reason it might look a little lower is probably your rear tires. Being that they are 295/35/18s, they have a taller sidewall than the tire that's supposed to be on there as far as your rear wheels go, which is 275/35/18. The taller tire closes the gap from the top of the tire to the fender a bit more, so that might make the car appear to be lower.

Your front tires are the correct overall height, which is 25.6", your rears are about an inch taller overall.

Manny
Thanks for the reply,but i mean slower...
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Old Dec 16, 2006 | 08:38 AM
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i have the same ****, but honestly its probably just all in the mind....beat on the bitch a little and then compare.
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Old Dec 16, 2006 | 08:47 AM
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Theres a guy with a black mach1 in my area we raced acouple of times and we where neck to neck most of the time unless driver error ( with stock 16 in. rims) . Same mach 1 runs away from me now cant keep up with him now with new bigger tires and rims as stated above...
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Old Dec 16, 2006 | 09:06 AM
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Adding rotational mass to the car is not the way to go faster. That's why people run on drag lites at the track. You don't get something for nothing in this world.
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Old Dec 16, 2006 | 12:06 PM
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On my daily driver (F150) I went from Aluminum 16" wheels to 17" Chrome (steel?)
and the truck felt slower..the chrome rims were waaay heavier. I've since went to Aluminum 17" and it feels better. It does have something to do with rotating mass, the more the wheels weigh, the more effort it takes to get them up to speed.
just my 2 cents
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Old Dec 16, 2006 | 01:17 PM
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Wow....that's what you get when you type early on a Saturday morning! Or maybe it was because it was my 999th post!

But yes, car will feel slower too coz the wheels are heavier.

**Hides in corner**
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Old Dec 17, 2006 | 11:01 PM
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I just put some 245/50/16 Nitto 555R on my stock 16in. rims...so the car seems alot lighter but the trackion is awesome,souded like my diffirential was going to break.I only wish i should have bought these before,never had them.
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Old Dec 17, 2006 | 11:58 PM
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its the wheels i also felt my car slower after i went from 16's to 18's but my car sure does look 10x better then before. Just add some headers and the mach1 going to be behind you =)
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Old Dec 18, 2006 | 12:53 PM
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ya goin from stock 16 to chrome 17x11 was very noticable that it was slower
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