Do I want to stay as close to stock (29.88") as possible and run the 305-45-18 (28.81") that the Lightning guys run, or do I wanna mess with my gearing a bit at the track and run 295-35-18 (26.13")?

radix, intake, exhaust, pcm

 

If you're going for the best e.t. i'd chose th shorter one, for looks, i'd probably stick with the 305's. Just my .02.

 

Although I have a programmed pcm, Id rather not have to have more than one for when I go to the track, and it seems to me as a 26" tire would make my shift points, etc angry. Any truth to that? Whatever it is, it has to be better than runnin the 1320 on my 22s...even though I keep pullin 2.0s

 

Go with the 295's they look good and will help you run better at the track

 

373s + a 26.13" vs my stock 29.88" tire. C'mon mathmaticians....hows this gonna affect gearing?

 

there is one more option, not sure if they are out yet. check out the 16 or 17" sizes >>http://www.intercotire.com/html/radial_racing.htm

the 28" tall DR might do the trick.

as far as gearing i think shorter will help as long as you dont run out of 3rd gear. looking below at 6000rpm you are at 134mph, if you dont run faster than that then you are ok i would say, the shorter the better.

Transmission Ratios:
1st: 3.06 2nd: 1.63 3rd: 1 4th: 0.7

Tire Diameter 1: 28 inches
Rear Gear Ratio 1: 3.73:1
MPH
RPM 1st 2nd 3rd 4th 5th 6th
1000 7 14 22 32 0 0
1500 11 21 33 48 0 0
2000 15 27 45 64 0 0
2500 18 34 56 80 0 0
3000 22 41 67 96 0 0
3500 26 48 78 112 0 0
4000 29 55 89 128 0 0
4500 33 62 100 144 0 0
5000 36 69 112 160 0 0
5500 40 75 123 175 0 0
6000 44 82 134 191 0 0
6500 47 89 145 207 0 0
7000 51 96 156 223 0 0
7500 55 103 167 239 0 0
8000 58 110 179 255 0 0



same chart but with 26" tires, both charts assume converter is locked.

Transmission Ratios:
1st: 3.06 2nd: 1.63 3rd: 1 4th: 0.7

Tire Diameter 1: 26 inches
Rear Gear Ratio 1: 3.73:1
MPH
RPM 1st 2nd 3rd 4th 5th 6th
1000 7 13 21 30 0 0
1500 10 19 31 44 0 0
2000 14 25 41 59 0 0
2500 17 32 52 74 0 0
3000 20 38 62 89 0 0
3500 24 45 73 104 0 0
4000 27 51 83 118 0 0
4500 30 57 93 133 0 0
5000 34 64 104 148 0 0
5500 37 70 114 163 0 0
6000 41 76 124 178 0 0
6500 44 83 135 193 0 0
7000 47 89 145 207 0 0
7500 51 95 156 222 0 0
8000 54 102 166 237 0 0

 

I have to run 18" with my Baer Alumasport setup

 

You still have a lot of room to grow with a 26" tires and 3.73 gears. I run 26" ET Streets at the track with no reprogramming for the smaller tires and it works just fine. So if you are only going to be running them at the track and are looking for ET, I would go with the 295/35. I plan on going with the 305/45 myself but they will be the everyday tire on mine.

 

well I certainly dont ever plan to break 112 or so, so Im bery safe with a 26" and 373s