Sedans are as fast as coupes. go and tune
#76
03-19-2009, 03:11 PM
#77
03-19-2009, 03:39 PM
Then there's two other major factors at play:
1) With larger rims, the mass of wheel/tire is further from the hub which makes it harder to accelerate and turn.
2) Wider rims/tires and sticky tires greatly increase drag and wind resistance. A 245/40/19 is over 1.5" wider in profile. That's a big increase in drag.
My aftermarket 18" combo weighs 1lb less overall than my OEM 17s. The width of the 18" combo is 1.2" wider than the 17s. Overall, when I swap rims, my MPGs drop a solid 1-2mpg. That means the car is using my fuel/power to overcome the drag.
1) With larger rims, the mass of wheel/tire is further from the hub which makes it harder to accelerate and turn.
2) Wider rims/tires and sticky tires greatly increase drag and wind resistance. A 245/40/19 is over 1.5" wider in profile. That's a big increase in drag.
My aftermarket 18" combo weighs 1lb less overall than my OEM 17s. The width of the 18" combo is 1.2" wider than the 17s. Overall, when I swap rims, my MPGs drop a solid 1-2mpg. That means the car is using my fuel/power to overcome the drag.
And IMO, while weight does matter, size matters just as much.
Everything with cars is about balance. If it's not balanced, then it's either a give or take like DaveB is talking about.
#80
03-19-2009, 08:05 PM
lol when I said a delay I ment, the car doesnt pick up as fast/acclerate as it did with the 17's.
DaveB hit what I was thinking/ment... Im sorry but I still think the 19's are gonna slow you down some. And I know (Less tire more rims) can equal a tire with (more rubber and air & less rim). lol.....
I wished I still had my stocks so I could Weight them for own prefrence.
DaveB hit what I was thinking/ment... Im sorry but I still think the 19's are gonna slow you down some. And I know (Less tire more rims) can equal a tire with (more rubber and air & less rim). lol.....
I wished I still had my stocks so I could Weight them for own prefrence.
#83
03-21-2009, 12:15 AM
The T1R is pretty light for a 19" tire. (I'm not that all enthused about their performance but anyhoo).
The cast 17" 17" wheel is NOT heavy. At least the premium wheels aren't. Just because a wheel is cast, doesn't mean it's heavy. It's very, very difficult to make a 19" wheel match the weight of a 17" wheel. The rear forged 19s are about 21lbs each. A rear 19 with a Michelin pilot sport (light for it's size) 255-35-19 comes in at about 45 lbs.
If I remember right, my blizzak and oem 17 weighed in at about 45lbs or so. The blizzak is 25 lbs so that puts the oem 17 at about 20lbs. I'll weigh them again when I swap.
Now the oem 18s are pretty heavy (Z and coupe). About 6 lbs each heavier than the Z track forged 18. 19lbs vs 25 lbs
The cast 17" 17" wheel is NOT heavy. At least the premium wheels aren't. Just because a wheel is cast, doesn't mean it's heavy. It's very, very difficult to make a 19" wheel match the weight of a 17" wheel. The rear forged 19s are about 21lbs each. A rear 19 with a Michelin pilot sport (light for it's size) 255-35-19 comes in at about 45 lbs.
If I remember right, my blizzak and oem 17 weighed in at about 45lbs or so. The blizzak is 25 lbs so that puts the oem 17 at about 20lbs. I'll weigh them again when I swap.
Now the oem 18s are pretty heavy (Z and coupe). About 6 lbs each heavier than the Z track forged 18. 19lbs vs 25 lbs
#84
03-21-2009, 12:33 AM
#85
03-21-2009, 12:49 AM
#86
03-21-2009, 12:54 AM
#87
03-21-2009, 01:15 AM
#89
03-21-2009, 02:05 PM
#90
03-21-2009, 03:01 PM