281ci
TR6060
3300lbs
NA
4.71 gears
Hoosier 26x8.5
Custom cams
Stock heads
Car #871
CID : 281
Trans : TR3650
N/A (JLT intake, Long tubes, Catless X pipe, UDP's, and tuned by Lito)
Rear gear ratio : 3.55
Tires : Firestone Firehawk Indy 500's
(235/55R17)
12.96 @ 109 mph (1st pass)
12.93 @ 110 mph (back up)
View attachment 69247
CID : 281
Trans : TR3650
N/A (JLT intake, Long tubes, Catless X pipe, UDP's, and tuned by Lito)
Rear gear ratio : 3.55
Tires : Firestone Firehawk Indy 500's
(235/55R17)
12.96 @ 109 mph (1st pass)
12.93 @ 110 mph (back up)
View attachment 69247
The 110 trap speed is excellent but your problem, as you probably already know, is a lack of traction. The 2.1X 60' time says it all and you could easily shed 3/10 from that.
Are you still in 3rd gear going through the trap? What's your rev limiter set at?
I also have 3.55s and with 255/45R18s, I'm coasting for the last few feet 'cause I hit 6500rpm in 3rd just short of the trap.
In case you're wondering how I got my time, I "cheated" a bit by removing the front passenger seat, rear seat, spare wheel, trunk contents (110lb total), and ran with a 1/4 tank of gas (75lb less than a full tank).
Impressive runs, congrats!
Yeah these tires are very limiting. I want to push it though and see how fast it can go on them for now. Trying to convince a buddy to get a 3v and he challenged me to run 12.7 on these tires without changing the rear gears. I just put cams in it and had Lito re tune it for me. On those runs my limiter was set at 6400. I was bouncing off limiter right after crossing the finish line at the very top of 3rd. Tires are 235/55r17 and 27.2 inches tall. I recently set the limiter to 6700 with the cams even though the power starts to taper off with these at 6300. Just need the extra rpm to be in the power band by the next gear. I ended up damaging my 1-2 synchro in the trans recently so i am working on getting a replacement. Soon hopefully.
Lost my pb pics now I lost my tinypic link.Tom:
Since we lost our photobucket service, here is the 12.96 and 12.97 pass info for my car from last November.
281 cu. in
3512 lbs
stock 5R55S auto w/stock convertor
N/A
3.31 rear
27" tall Hoosier quick time pro DOT ( front skinnies )
Stock cams
Stock heads
Thanks