NA Race Results

[LordWorm]

First time at the drag strip was pretty sweet. Ran four times and got a little better each time.

1
reaction .6704
60' 2.57
1/4 mile 16.25@85.8

2
.5803
2.53
16.14@86.3

3
.4285
2.49
16.05@86.3

4
.1149
2.46
15.97@86.63

stock rubber at ~30PSI maybe 45lbs weight reduction. i guess my 60' times are kind of slow, I was hoping for better but pleased with first time out results.

good that you got out there.... question, what kind of RPM are you launching at?

the stock motor with microtech and no other mods, with the backseat, rear wing, and spare tire and tool bag out of the car is good for a mid 15 - i would have expected you to get straight into the 14s without even trying...

60' times should be down around the 2 to 2.25 mark and MPH should be in the mid 90's.... at least thats what i would have expected...

 

[zoomin MP3]

My best 60' is 2.45 and I've never gotten close again. I'm typically in the 2.57-2.62 range. There's practically no track prep at the one close to me though. I've tried anywhere from 3k rpm to 4.5k and right around 3.8k seems to get off the line with the least amount of tire slip and minimal bogging.

 

[jimmysuite]

I was launching at 3500 to 4000rpm but I probably dont have the timing right with the clutch and gas. Every run was a quick dump of the clutch and probably too hard too soon on the gas. When launching are you finnessing the clutch at all to keep rpms at 4k? I think next time I might try loading against the e-brake. Do slicks make launching harder or more forgiving?
there was a guy in an sentra SE-R putting down mid 15s consistently. I was going to talks to him for a bit about launching but didn't see him again.

 

[LordWorm]

I was launching at 3500 to 4000rpm but I probably dont have the timing right with the clutch and gas. Every run was a quick dump of the clutch and probably too hard too soon on the gas. When launching are you finnessing the clutch at all to keep rpms at 4k? I think next time I might try loading against the e-brake. Do slicks make launching harder or more forgiving?
there was a guy in an sentra SE-R putting down mid 15s consistently. I was going to talks to him for a bit about launching but didn't see him again.

4k is perfect for the stock motor...but fiddle with it...try higher...4.5 perhaps?

Basically what you want to do is slip the clutch to help keep the revs up and ease the gas on...dumping the clutch and flooring it will just smoke the tires. dumping the clutch and easing on the gas will bog. slipping the clutch and dropping the throttle to the floor will fry your clutch... you *need* to slip and ease... keep those revs from dropping... you want them to rise steadilly until you have the clutch all the way out and then just nail it.

practice makes perfect...i haven't been out for a long while...it'd prob take me 3 or 4 runs to get my launch mojo sorted.

Dont bother with flatshifting - and on the FSDE + G Series gearbox just rev it out to redline in every gear.

 

[zoomin MP3]

I've tried slipping the clutch off the line, but it seems to be slower for me. I've had my best results simply "almost" dropping the clutch from about 3800. I slip the clutch for just a split second then dump completely. Maybe I just need more practice finding the balance though because I've heard from several people that slipping and keeping the revs high is the way to go.

I use the e-brake to keep my car from rolling and triggering the light, but I'm not brave enough to destroy my clutch by preloading the suspension and driveline with it.

 

[LordWorm]

I've tried slipping the clutch off the line, but it seems to be slower for me. I've had my best results simply "almost" dropping the clutch from about 3800. I slip the clutch for just a split second then dump completely. Maybe I just need more practice finding the balance though because I've heard from several people that slipping and keeping the revs high is the way to go.

I use the e-brake to keep my car from rolling and triggering the light, but I'm not brave enough to destroy my clutch by preloading the suspension and driveline with it.

it is a question of practice. Clutch slipping is exactly what the pros spend hours setting up on their cars. Mind you, their clutches are "set" to slip - so they just pull the trigger and the clutches lockup sequentially providing the slip they need.

Preloading does help quite a bit but wont do much if you are not slipping. Preloading will reduce any sudden shock against the drive line - sure it might hurt the clutch but a hurt clutch is better than a hurt gearbox - if your tires hook up hard and you have enough power to do any damage, the G series box will fall over like a house of cards. Seen it happen on far stronger boxes. Of course at most test and tunes the track is barely prepped so it wont generally be sticky enough to be a problem.

get out there and practice - ignore the tree while practicing...reaction time means nothing at a test and tune - the timer wont start until you roll the beams, so wait for the lights to count down, get relaxed, and concentrate on launching. Once it is second nature, start playing the game on the tree.

 

[zoomin MP3]

Thanks for the info.

I'm trying to find a secluded section of road that I can practice my 60' using my performance meter. The guy I bought it from used it for that same purpose. I'm actually suprised at how accurate this thing can be. Next time I'm at the track, I plan to dial in the settings til I'm getting the same times on my meter as the readout from the track.

 

[br289165]

What kind of meter?

Thanks for the info.

I'm trying to find a secluded section of road that I can practice my 60' using my performance meter. The guy I bought it from used it for that same purpose. I'm actually suprised at how accurate this thing can be. Next time I'm at the track, I plan to dial in the settings til I'm getting the same times on my meter as the readout from the track.