Irwindale tonight (2/26)

[Paul Huizenga]

I know it's late notice, but if anybody wants to go drag racing tonight, I'm going to be at Irwindale from about 4pm on...

 

[gmantheman]

It's tempting, but kinda far.

 

[mustanghurt]

im working blah

 

[Paul Huizenga]

It was a zoo. I was there from 3:30 to 10 and got a total of five passes, and that was "hot lapping" straight back into the lanes.

On the up side, the car ran really well. 9.27 on the 50-shot, 9.17 on the 75, and there's room for improvement since I was being conservative with the window switch because I didn't have the right tune in the computer.

 

[02gt]

How was the 60 foots???? i imagine you could get get em in to 1.9's with the mickeys i seen you racing with.

 

[Paul Huizenga]

60-foot times are mediocre - 2.121 was the best I did last night, and that was on the 9.27 pass. Most of the time, the car just dead-hooks, unless I did a bad peg leg burnout or the track is bad. I stall the car up as high as it will go at the line (2100 rpm) with a combination of the pedal and parking brake, then just dump it. It will hang on the converter out past the tree, then the nitrous clicks on as the wheel speed catches up with the engine and the RPM goes past 2200.

Since I don't want to spray the car below the converter stall, I think my 60-foot times aren't going to get much better unless I go to a shorter tire or put more gear in.

 

[gmantheman]

I have heard the track at Irwindale really hooks.

 

[02gt]

60-foot times are mediocre - 2.121 was the best I did last night, and that was on the 9.27 pass. Most of the time, the car just dead-hooks, unless I did a bad peg leg burnout or the track is bad. I stall the car up as high as it will go at the line (2100 rpm) with a combination of the pedal and parking brake, then just dump it. It will hang on the converter out past the tree, then the nitrous clicks on as the wheel speed catches up with the engine and the RPM goes past 2200.

Since I don't want to spray the car below the converter stall, I think my 60-foot times aren't going to get much better unless I go to a shorter tire or put more gear in.

if i remember right you were running on 16's(room for improvment), what gear size you run right now??? I would put 4.30's (if they make them for the 7.5 rear). Im thinking about doing 4.30's when and if i buy a daily driver truck. Have you looked in to getting a stall convertor?

 

[Tommy]

It was a zoo. I was there from 3:30 to 10 and got a total of five passes, and that was "hot lapping" straight back into the lanes.

On the up side, the car ran really well. 9.27 on the 50-shot, 9.17 on the 75, and there's room for improvement since I was being conservative with the window switch because I didn't have the right tune in the computer.

When I lived in LA I was there often. It gets swamped there at times. I've never raced there, but I see the bored looks on drivers as they wait in a looooong line.

 

[Paul Huizenga]

if i remember right you were running on 16's(room for improvment), what gear size you run right now??? I would put 4.30's (if they make them for the 7.5 rear). Im thinking about doing 4.30's when and if i buy a daily driver truck. Have you looked in to getting a stall convertor?

The tires are M/T 255/50R16 Drag Radials, which are nominally 26.1 inches tall. That's about as short as I can go in a 16 or 15 inch drag radial - BFG makes a 225/50R15 that's 23.9 inches tall, but that's a pretty narrow tire, and the compound isn't as good.

Stock gears are 3.55's. Running different ratios through DragSim doesn't seem to change much - it's telling me that there's maybe a tenth in it at best. Same with a converter, and if I get something with a higher stall, all it does is delay the point when I can start the nitrous.

I think for now, I'm going to do some datalogging and see exactly what's going on in the first 60 feet, and get the nitrous activation dialed all the way in.