Temp is probably 90-95degree, rims are stock 16 with stock Potenza. Gone with 92 octane, launched at 5800-6000rpm. Don't know the elevation, launching did not bog but did feel like it could use a little higher rev. By resetting the ECU you mean to pull out the backup fuse? I kinna agree with you on that about the DC header, probably throw my stock one back on and see if I can notice the difference?

 

Dude... next time... run around 65 degrees, take DC header out, launch a little bit higher... that's all

Have fun

 

If the temp was around 65-70 then it'll be great for me and my S but as you know, summer is summer and the raceway only opens certain event on certain days so I wouldn't want to miss my chance. You bet I'll launch higher next time around, about the DC header I have no idea. It does seen that my DC header is the problem but I'm also thinking that it's not the only problem, swapping the stock one back in and you think I'll hit 14.1 or closer? Swapping in the stock one I don't think will be much of a difference if slightly but I'll see for myself, probably launching a bit higher and trying to get a better 0-60ft will help.

 

Take the spare out of your trunk and have no more the 1/4 tank gas, this will help a little.

 

Had 3 bars on the odometer as for fuel, took the spare tire out ever since I'd bought the car. Also removed my tool tray and whatever there was in the trunk beside the carpet, guess it did help but not enough to get me to that sweet 1/4 mile spot that I'd wanted... Maybe it's time for a trade, maybe a Evo MR? ... Bro taped all 4 of my runs, looked great but no idea what happened to the trap speed or the 1/4 mile time. Oh and no short shifting, redline on every gear with high expectation but not what I'd expected as for the result as all of y'all already know. Oh and for all who wanted to know how fast a Fairlady 300zx run with mods, it ran a 14.6 as a best time on the clock. Like I'd said, lots of Evo (not MR) running 14.3-14.0... I however ran a 14.6 as a best time out of all 4 of my runs, the extreme temp and humidity had alot to do with every run not just mine so go figure.

 

sure if u want a sedan.
-Chris

 

There was a fellow S2k owner there but he'd brought his Evo instead, wish there was another S out running so I can see the difference between mine and it. Me or the other should get somewhat of a better time so we'll know if my car is running weak or if it's really the temp. Told me that his Evo couldn't break the 14 sec mark, said that it was leaking. Leaking what I have no idea, he just parked it after that and refused to go back on the track. Evos are what, 13.5-13.4 stock? They're running 14.3-14.0 so I figure they're running .5-.6 second slower for their stock time and I'm 14.6 which is also running .5 second slower as well compared to the stock 1/4 mile time for my S. Any thoughts on that guys? I know that peeps can get any car to run better than what's said for the stock time but I'm just comparing stock time as they'd listed, not what you can do or not. I know that you're stock Yellow but maybe you can shine some lights on this situation as to what I'm trying to say, hope it's not confusing. Thanks in advance...

 

race gas will give some improvement. The S2000 has such sensitive knock sensors, they are almost paranoid. race gas will give some increase in power on the S2000.

and it doesn't sound like he's bogging. if he's hooking up at about 7500rpm he's spinning too much.

 

I think a lot of what's happening to you comes down to driver. while you said you nail your shifts perfectly, you are probably not the fastest shifter in the world, and it's hurting your time. no offense, but many people think they are greater drivers, when in reality, they're not. i'm not saying this is you, i'm just saying it's food for thought.

when you launch your rpms should dance up to around 7500rpm or so. you'll feel it in your butt if you get a good launch. it kinda feels like someone pushed you. after those first couple seconds of wheelspin, your rpms should then slowly come down, and the moment your tires stop spinning and they hook up, you should be at just about 6000rpm.

if you're spinning your tires and they hook up, and you are at 7500rpm, you're spinning WAY too much.

you are flooring it after you launch right?

launch rpm is determined by traction conditions. this is what a lot of people don't understand. start at a lower rpm and work your way up. if you don't spin enough, you'll bog a bit, and your rpms will drop below 6000rpm when you finally stop spinning. next launch, try 500rpm higher.

also lower your back tire pressure to about 24psi. raise the front to their max (about 44 on S02's i believe). also be sure you are NOT driving through the water box before you race.

a good driver still understands that chances are you'll never get the perfect rpm to launch at. a good driver will be able to tell if they're spinning too much, and can adjust by feathering the gas.

it'll take time and practice, but i think there is nothing wrong with your S2000. you just need some practice.

 

Well said, I believe on what you'd said. When launching I launch at 6000rpm then floor it and it gets up to 8500rpm or so then it grabs at 7500rpm, after that I'm off. About tire pressure, I'd lowered the rear to about 25psi and the front I'd just lefted it at 32psi. It grabbed pretty good after I fish tailed from the launch, it could be that I need improvement on my shifting but I know I'd nailed it pretty good for a average driver. I strongly believe that the extreme heat had alot to do with that and also the wind cuz it was pretty windy for a little while. I got what I got so that's that, I just need a bit more improvement. I'll see what other S owners get when they come to the track, lets hope someone will great a really great time so I can practice harder and try to get what he/she gets .