i finally took my car out to the track a couple of nights ago. my R/T wasn't all that great at 0.577, but i think i ran a decent 14.89. does that sound right? i think it could be faster, haven't got that many mods yet, just a z-tube and blitz drop-in and GroundingGear ground kit. my tire pressure in the rear was at 15psi and the tires are s-03's. i was launching at 3k, but i think i was givin' it waaaaaaay too much power on the take off.....the tires wouldn't grip so well until after 1st. any suggestions? thanks!

n1cK!

 

What where your 60ft times and trap speeds? 14.89 isnt that great even for a slightly heavier G Coupe. I think they can go very very low 14's maybe even 13's with a good driver. Post some more info and we can analyze and help you....as far as S03's go they are not that great for drag racing, they have some stiff a$$ sidewalls.

 

I think a 14.89 is pretty decent for the G. I would raise the tire pressure to 25 or so. I would ease off the throttle at launch too. Maybe try around 1800-2200 rpms at first. Then work your way up. As Alberto said, it would help to see your slip to know where you could improve. Like your 60' etc.

 

S03's = heavy

unsprung weight makes a big diff on power... saw a show on speed channel a week ago where they lost 12hp by adding a big brake kit on a RSX due to added rotational mass of the rotor.

are you on stock wheels?

 

Especially in HI at about sea level. My first time with my G sedan STOCK, I ran a 14.4 @ 99 with a 2.2 60' after a few tries. I burned thru part of first gear, spun for a bit on the 1-2 shift.

This was all at 1200 feet altitude (corrects to a 14.2). Since then I have 1 14 flat and many 14.2's with a replaced resonator, intake midpipe and K&N panel filter as my only mods.

To accurately decipher your problems, look at your 60' time, 1/8 mile time/mph, and trap speed. You should be halfway thru third gear(6MT) by the 1/8 mile (~ 75 mph)

The trap speed should be 98-99 mph if you are that close to stock. If it is lower, than you have some missing hp (some mods have been seen to drop power). If it is there or higher, you should be fine from the hp point of view.

Your 1/8 mile time can be of some note to determine if you are shifting fast enough. Generally if it is high (>9.5 seconds or so) it means you need to work on your 1-2 and 2-3 shifts and/or your 60'.

Your 60' time should be in the 2.0-2.3 range. 2.2 is a good goal for a new owner of a G. 2.1 means you are better than most people. 2.0 or lower means you are a God with street tires. There are endless things you can do to lower your 60 foot time. dropping tire pressure helps to some extent, but has to be combined with your clutch technique to get the most out of the launch. I launched best on my stock goodyears at 28 lbs. ON my GS-D3's I launch best at around 33lbs.

Good luck and it takes many tries to learn a new car. (took me 20,000 miles to learn to launch without bogging or roasting tires.)

 

well everyone, here's a link to the time slip. like i said, that was the first time it's been out on the drag strip so i'm still tryin' to find the "sweetspot". i was fairly inconsistent with runs ranging from 14.89 to 15.64 (very first run). hopefully it will get better over time. and yes, you're right about those sidewalls. i had my tire pressure down to 15psi, but the grip was great! also, maybe i should be a little concerned with the avg. 93mph at the end. i only have very few mods, nothing that i thought would affect performance all that much. hmmmm.......

n1cK!

 

i would guess that any 19in tire would be heavy. i no longer run on stocks, using the 19in superleggera, which are pretty lite. obviously 19's aren't the best to drag race on i agree with you on that unsprung weight, and i think a lighter flywheel will have a significant benefit. i've always wanted one for the maxima when i had it, and now i feel the same way with the G. it just feels like the flywheel is a little on the heavy side.

n1cK!

 

that is some great analysis snolden! i'll look into that. but i think that my biggest problem was on the launch. i just couldn't get it right, except for the 14.89 , which was my best run, with the next best being a 14.98. i didn't break into the 15's the other 6-7 times!

n1cK!

 

it looks like you are just a few steps off all the way around. your 60' is good, your 1/8 is just a little slow and your top end mph is pretty low.

i bet you make better times by at LEAST two tenths with your stock tires.

you should be able to pick up 0.2-0.3 seconds if you learn how to shift. I bet your clutch travel is too long. search for the engagement point on your clutch. adjust the travel so you have to move the pedal as little as possible. practice timing your shift throws with the clutch pedal so you are doing both at the exact same time.

are you redlining each gear? This is a bad thing to do except in first gear. you are wasting time anywhere past `6300 rpm in 2nd, 3rd gears from my experience. i got better times shifting at 6200 than at 6700 rpm. crawford plenum is next.

 

Last week at the track there was a stock G35c and he couldn't run better then a 15.1 in 4 runs!! Not sure how this is possible at sea level. Also there was a guy in a C5 Vette that couldn't break into the 13's.. And the temp was in the low 50's and dry..

The worst run I have ever done ever in my Z was a 14.6@98 and that was because I forgot to shut off my Traction control and my first run ever with my Z and first drag race ever I managed a 14.1

I can see how heavier\larger tires will slow you down a bit but not to the tune of 14.9@92 unless the rims have boots attached to them.. expecially that your 60' was pretty good.

Not sure what to think unless your at an elevation

 

ouch, that hurts! i redlined once, but that was on one of the slower runs. i usually shift it at around 6300rpm. clutch travel is just another thing on the list to master. on an integra that i used to drag, i knew when i the clutch was engaged/disengaged, and the travel was not that far. for the G though, i think the engagement point is somewhere just before half-way (am i wrong?).

n1cK!

 

whoa, i guess i'm not the only one, eh? ha ha, but i guess it's all just a learning process. i am also at sea level, and there doesn't seem to be an elevation on the track. by the way, that's a pretty good time on the z, $hit, i wish i close to that time!

n1cK!

 

Dude you are confusing "redlining" with hitting the rev limiter.

Redlining is desirable in first gear with the G's stock power curve and gear ratio, even going a little past won't hurt you. The rev limiter is set at around 6900 rpm. Bouncing off that can hurt your time alot, as it cuts fuel.

Redline is not the same as the revlimiter. Redline is like 6500 right, rev limiter is higher.

Your engine is kinda like a snowman. It can handle a few days above freezing, but not too many and not too far. Freezing would be comparable to redline, I have no analogy for the rev limiter.

It doesn't hurt to go over redline a little bit a bunch of times. Going over to like 8000 rpm or higher (like grabbing second on a downshift instead of 4th) might kill your engine all at once, whereas going over redline might take thousands of occurrences before it starts melting.

I grabbed the wrong gear once, saw the tach wrap REALLY REALLY quick and put the clutch pedal in all the way at around 8000 rpm. I came directly home, ran the engine for awhile to watch for oil lights and leaks, then changed the oil. That is how serious a missed downshift can be.

When I hit the revlimiter for a split second, I laugh and curse and get on my way.

 

Hey N1ck, you are everywhere man! Me too.

Do you still have your stock rims? I bought BF Goodrich g-force T/A Drag radials for the stockers. At night, nobody really knows you have them on, at least for me anyway.

At the Southeast Z Shootout, I did a 14.033 at 99.74 mph, 2.09 60ft.

My buddy Rick has almost the same identical setup as I do and he had 4 runs in the high 13's (13.86 best) on 19" SO3's.

I think with a little more practice I should be able to get that 60ft down to 2 and get into the 13's.

What I really want to hear, is that girl at the time slip booth say (in her best southern twang) " Hey you need a Helment "

Take Care

 

Hey does the G have a diffrent rev limiter or something? I know in my Z that I can rev to 6600 and at precisly 6001 it will violently hit the limiter..

 

believe me, i know what the difference between redline and rev limit is i hit revlimit already and it did severely hurt my time (although i didn't laugh, i just cursed ) but i never mis-shifted like that before! i've seen others do it, and the damage caused by it, but i have been fortunate enough to never do it.

on first gear, even with the power curve and gear ratio of the G, it doesn't really pay to go passed. you're still in the car's power range if you shift before redline. sometimes, you may even be on the downside of the power curve, or not making any more power towards redline. i'm not sure on the exact RPM the G hits peak, but if it's at redline, then i guess that would be the time to shift, yes?

n1cK!

 

ha ha, yes i am mark, but i'm not the only one, you are too there seems to be a great variation in the times, probably due to the tires, but most likely due to driver (?) i really need practice myself! i guess if there are some that say you could hit 13's bone STOCK, then i have a whole LOT of room for improvment

n1cK!

ps-oh, and about those wheels, i could get a pretty good deal, but i think i'm gonna hold off until i get back to the mainland. i think i'm still tryin' to decide on which wheels to get (lighter or "cooler", but wait, light is cool, arrrrrrrrgggggghhhhhhh), decisions decisions!

 

from what snolden is saying, the G rev limit is around 6900rpm. i honestly don't know, all i know is that i hit it, ha ha! but i don't see why there would be a difference, anyone else?

n1cK!

 

yes my rev limiter is at 6900. In "G" form the VQ hits peak hp stock at 6000 rpm, in "Z" form the VQ hits peak hp at 6200. In altima and maxima form it hits peak hp at 5800. In crawford plenum form it is more like 6500.

Regardless, with the gear ratios in hte 6MT you are making more hp at the wheels at 6500 in first than the corresponding place you would be in second

 

i know i'm bringin' this thread back from the dead, but i took the G out to the tracks here in HI last night. it was a pretty good night, not so crowded, ran a lot! i beat my personal best of 14.893. i ran a 14.687. my r/t was crap, but i wasn't too concerned about it yesterday, was working for the e/t. here's it is:



any analysis will be much appreciated!

n1cK!

ps-hey mark, if you read this, tell me how you run 13's!!

pps-here's a link to the old time-slip (the first time)