What MPH are you guys seeing on your average 4.70/4.80 dragster? For the guys who run 1/4 what is your 1/8 to 1/4 MPH.

Mine seems to be in the 141-142 and 171-172 range. Seems low to most similar cars in my area.

I was 4.76 144 and 7.49 178 the other day

Mid 4.70s at 144, 7.50 at 177/8 in average air.

Yours seems a little low, what does it 60’? How big is the engine, converter stall, gear ratio?

Going low 4.80's I am at about 142-143. Only really touched 143 when I went 4.80x one morning with real good air, typically I am 142 though everywhere.

We go 4.65 @ 150

Still working out some issues (convertor, leave RPM, etc) and I am only at 4.95 so far but the mph is 140+.

quote:

Originally posted by 183N:
Mid 4.70s at 144, 7.50 at 177/8 in average air.

Yours seems a little low, what does it 60’? How big is the engine, converter stall, gear ratio?

2000 pound 4 link. 3183 M/T tire. full size mono wing. 598 BMF 385 head. APD 1250 Holley bodied carb on methanol. 9" Abruzzi. flashed about 6500 with the 4.10. 6200ish with the 4.30. 60 was 1.11-1.12 with 4.10 1.09-1.10 with 4.30

quote:

Originally posted by DragRaceResults:
We go 4.65 @ 150

Interesting we go 4.62-4.65 but at only 147/148 I think it should be a high 4.50/60 150ish in bad air but just can't tune it there on alky terminator. Any suggestions?

My best at Bandimere in 9800ft of air was 4.82/144 1/8, 7.56/179.9 1/4 (same run). I haven't ran much here since moving, lots going on, but one pass I did make at Immokalee I went 4.82/148, in first gear, spinning....... I forgot to turn on the co2! Gonna finally start running the car again next month.... been too long!

We would run 4.79@144 and 7.50@183 with a 1.07 - 1.08 60'

quote:

Originally posted by Coloradoracer:
My best at Bandimere in 9800ft of air was 4.82/144 1/8, 7.56/179.9 1/4 (same run). I haven't ran much here since moving, lots going on, but one pass I did make at Immokalee I went 4.82/148, in first gear, spinning....... I forgot to turn on the co2! Gonna finally start running the car again next month.... been too long!

You ran 148 mph in low gear? What rpm were you at? Just curious.

quote:

Originally posted by CURTIS REED:

quote:

Originally posted by Coloradoracer:
My best at Bandimere in 9800ft of air was 4.82/144 1/8, 7.56/179.9 1/4 (same run). I haven't ran much here since moving, lots going on, but one pass I did make at Immokalee I went 4.82/148, in first gear, spinning....... I forgot to turn on the co2! Gonna finally start running the car again next month.... been too long!

You ran 148 mph in low gear? What rpm were you at? Just curious.

Somewhere around 9k....... wasn't planned, engine nosed over and I checked the tach. Saw the needle in that neighborhood and smacked the shifter. About that time I went past the finish line. I'll post my time slip if I can find it. I got scared that I hurt something with the rpms, but I didn't find anything after looking it over. Trust me, I was surprised at the run. I'm still wondering what it would have ran if it hooked and shifted!!

4.65 152

Anyone know the ET and MPH diff with and without a full size mono wing?

At 2050 lbs, I went 4.81 @ 145 in the heat, has been as quick as 4.72 @ 148 last fall.

1.14 60 FT 4.95 @ 142. Try and figure that one out going down track 4.70 / 4.80 guys.

quote:

Originally posted by robl384:
1.14 60 FT 4.95 @ 142. Try and figure that one out going down track 4.70 / 4.80 guys.

Most race days I go mid 5.20s @ 141-142 or 8.0x @ 176-177

Added wing and MPH increased, still spinning in high gear.

Bob

quote:

Originally posted by ActionRacingPhotos:

quote:

Originally posted by robl384:
1.14 60 FT 4.95 @ 142. Try and figure that one out going down track 4.70 / 4.80 guys.

Most race days I go mid 5.20s @ 141-142 or 8.0x @ 176-177

Seen a guy take a 632 12* motor and short shift it and go 4.90s at 150 mph..