Ran my 2k2 at the drag strip - HELP !
09-08-2002, 04:50 AM
#1
Donating Maxima.org Member
Thread Starter
Join Date: Oct 2001
Posts: 1,875
Ran my 2k2 at the drag strip - HELP !
Well I finally got my car to the track.
Good news and bad news: First good news.
I had four runs.
First run vs acura type s 3.2CL.
This is my first run ever:
R/T 1.255
60' 2.521
MPH 93.95
1/4 15.801
I lost as a result of the worst wheel hop ever..And plus i think i damaged somehting because my car is clunking from this first run.
2nd Run vs 5.0L mustang (I BEAT HIM!! )
R/T 1.212
60' 2.487
MPH 96.20
1/4 14.816
3rd Run vs 96 Maxima SE (he got so smoked)
R/T 1.156
60' 2.355
MPH 95.99
1/4 14.665
4th and best run of the day vs highly modified integra type R ( i won)
R/T 1.180
60' 2.356
MPH 96.22
1/4 14.637
IT was fun and all but something is seriously wrong with my car. In first gear when i start, i usually now get a thunk. THese runs were with spare tire and my 50lb amp rack. TIre pressures were not adjusted.
The only modi have to this engine is teh TIMING ADVANCE. Temperature was cool.
When others race their 2k2's, do you also get massive wheel hop?? I think thats what broke something in my car. TOok it to the dealer the next day and got the UNALBE TO DUPLICATE situation.
HOw do you fix this wheel hop.. I tried feathering the clutch and still even the 2nd gear shift rendered a nice clunking wheel hop!!
Help!
ED
Good news and bad news: First good news.
I had four runs.
First run vs acura type s 3.2CL.
This is my first run ever:
R/T 1.255
60' 2.521
MPH 93.95
1/4 15.801
I lost as a result of the worst wheel hop ever..And plus i think i damaged somehting because my car is clunking from this first run.
2nd Run vs 5.0L mustang (I BEAT HIM!! )
R/T 1.212
60' 2.487
MPH 96.20
1/4 14.816
3rd Run vs 96 Maxima SE (he got so smoked)
R/T 1.156
60' 2.355
MPH 95.99
1/4 14.665
4th and best run of the day vs highly modified integra type R ( i won)
R/T 1.180
60' 2.356
MPH 96.22
1/4 14.637
IT was fun and all but something is seriously wrong with my car. In first gear when i start, i usually now get a thunk. THese runs were with spare tire and my 50lb amp rack. TIre pressures were not adjusted.
The only modi have to this engine is teh TIMING ADVANCE. Temperature was cool.
When others race their 2k2's, do you also get massive wheel hop?? I think thats what broke something in my car. TOok it to the dealer the next day and got the UNALBE TO DUPLICATE situation.
HOw do you fix this wheel hop.. I tried feathering the clutch and still even the 2nd gear shift rendered a nice clunking wheel hop!!
Help!
ED
09-08-2002, 05:06 AM
#2
Donating Maxima.org Member
Join Date: Mar 2002
Posts: 369
If you find a solution to wheel hop I want to know. Mine does the same thing. Stiffer shocks would certainly be in the right direction if any are available. Maybe a torque strap located on the engine to eliminate some of the engine twist. Polyurethane bushings in the A arms possibly. The entire system is mounted in soft rubber which tends to generate this movement. This makes it nice and smooth on the street.
You are running some awesome MPH with a stock engine. The best I could muster up was 92.57 but with a 14.769 et. But I did manage a 2.187 60'. With wheel hop eliminated I would possible see some 2.0 60's and 14.50 ets. You would see some low 14s with a 96 MPH!
You are running some awesome MPH with a stock engine. The best I could muster up was 92.57 but with a 14.769 et. But I did manage a 2.187 60'. With wheel hop eliminated I would possible see some 2.0 60's and 14.50 ets. You would see some low 14s with a 96 MPH!
09-08-2002, 06:53 AM
#3
Supporting Maxima.org Member
Join Date: Sep 2000
Posts: 2,038
The way to avoid wheel-hop is the same as with the 2k/2k1s.
You've got to launch at fairly high rpm (4000 for 2k/2k1) and then walk the clutch out - don't drop it - while at the same time gradually going full throttle. Now that I've got the process down I can get sub 2.2 60' continually.
There are numerous posts if you search that discuss how to launch to avoid the problem. As for any concerns about the clutch - mine has held up fine and I'm certain any premature wear is better than wheel hop.
You've got to launch at fairly high rpm (4000 for 2k/2k1) and then walk the clutch out - don't drop it - while at the same time gradually going full throttle. Now that I've got the process down I can get sub 2.2 60' continually.
There are numerous posts if you search that discuss how to launch to avoid the problem. As for any concerns about the clutch - mine has held up fine and I'm certain any premature wear is better than wheel hop.
09-08-2002, 07:01 AM
#4
Senior Member
Join Date: Jun 2001
Posts: 676
The clunking is most likely a broken motor mount! It has happened to me twice now. Just take it to the dealer.
"I was pulling out of a shopping complex and the road was wet, but I had to really accelerate get up to speed with the traffic. As a result, I heard the loud noise and the car was bouncing. What would cause that??"
"I was pulling out of a shopping complex and the road was wet, but I had to really accelerate get up to speed with the traffic. As a result, I heard the loud noise and the car was bouncing. What would cause that??"
09-08-2002, 08:20 AM
#5
Originally posted by 2000 SE
"I was pulling out of a shopping complex and the road was wet, but I had to really accelerate get up to speed with the traffic. As a result, I heard the loud noise and the car was bouncing. What would cause that??"
"I was pulling out of a shopping complex and the road was wet, but I had to really accelerate get up to speed with the traffic. As a result, I heard the loud noise and the car was bouncing. What would cause that??"
Did u use this line both times?
09-08-2002, 08:22 AM
#6
Originally posted by 2000 SE
The clunking is most likely a broken motor mount! It has happened to me twice now. Just take it to the dealer.
"I was pulling out of a shopping complex and the road was wet, but I had to really accelerate get up to speed with the traffic. As a result, I heard the loud noise and the car was bouncing. What would cause that??"
The clunking is most likely a broken motor mount! It has happened to me twice now. Just take it to the dealer.
"I was pulling out of a shopping complex and the road was wet, but I had to really accelerate get up to speed with the traffic. As a result, I heard the loud noise and the car was bouncing. What would cause that??"
09-08-2002, 09:19 AM
#7
Re: Ran my 2k2 at the drag strip - HELP !
You have to work on that response time. Tire hop is the worst feeling in the world.. It feels like the engine is going to blow through the hood. You just have to ride the clutch out a little longer. I personally think 4000 rpms is too much, but that's my opinion. I usually keep it around 2000rpms and slowly let the clutch out.
Sometimes i get anxious and my right foot starts feathering the gas and then the light turns green and i let the clutch out to quick and at that point forget about recovering from the hop. The feeling makes me cringe
Sometimes i get anxious and my right foot starts feathering the gas and then the light turns green and i let the clutch out to quick and at that point forget about recovering from the hop. The feeling makes me cringe
09-08-2002, 09:48 AM
#9
Donating Maxima.org Member
Thread Starter
Join Date: Oct 2001
Posts: 1,875
ITs hard to let he clutch out slow, because with all the adrenaline pumping, i feel like the other guy has the upper hand..
All i have to say is 3 out of the 4 races (excluding my crappy first run) the other guy always had a better start than me, and i smoked them al in the end
MY list of mods to cure this is to get an intake,
then save up for full suspension mods..
But all i have to do now is solve my clukning problems.. I think it might even be the engine mounts...
Hopefully I can get that correctd...
ED
All i have to say is 3 out of the 4 races (excluding my crappy first run) the other guy always had a better start than me, and i smoked them al in the end
MY list of mods to cure this is to get an intake,
then save up for full suspension mods..
But all i have to do now is solve my clukning problems.. I think it might even be the engine mounts...
Hopefully I can get that correctd...
ED
09-09-2002, 05:38 AM
#11
Supporting Maxima.org Member
Join Date: Sep 2000
Posts: 2,038
Originally posted by MiniRX7
ITs hard to let he clutch out slow, because with all the adrenaline pumping, i feel like the other guy has the upper hand..
All i have to say is 3 out of the 4 races (excluding my crappy first run) the other guy always had a better start than me, and i smoked them al in the end
MY list of mods to cure this is to get an intake,
then save up for full suspension mods..
But all i have to do now is solve my clukning problems.. I think it might even be the engine mounts...
Hopefully I can get that correctd...
ED
ITs hard to let he clutch out slow, because with all the adrenaline pumping, i feel like the other guy has the upper hand..
All i have to say is 3 out of the 4 races (excluding my crappy first run) the other guy always had a better start than me, and i smoked them al in the end
MY list of mods to cure this is to get an intake,
then save up for full suspension mods..
But all i have to do now is solve my clukning problems.. I think it might even be the engine mounts...
Hopefully I can get that correctd...
ED
Even with my recently crappy r/ts - .7 - I'm getting about 1/2 of a second head start. That's a lot. That makes a 14.7 a 14.2.
The last time I was at the track, I beat a c4 that I jumped off the line. His e.t. was faster, his mph was way faster but I got the light.
And just to head off the flame war - I am not claiming I'm faster than a 3.5 6 spd - just giving an example.
09-09-2002, 05:50 AM
#12
Donating Maxima.org Member
Join Date: Mar 2002
Posts: 369
Originally posted by Max_Gator
You may feel that way until you lose to say, . . . a highly modified 2k 5spd!!
Even with my recently crappy r/ts - .7 - I'm getting about 1/2 of a second head start. That's a lot. That makes a 14.7 a 14.2.
The last time I was at the track, I beat a c4 that I jumped off the line. His e.t. was faster, his mph was way faster but I got the light.
And just to head off the flame war - I am not claiming I'm faster than a 3.5 6 spd - just giving an example.
You may feel that way until you lose to say, . . . a highly modified 2k 5spd!!
Even with my recently crappy r/ts - .7 - I'm getting about 1/2 of a second head start. That's a lot. That makes a 14.7 a 14.2.
The last time I was at the track, I beat a c4 that I jumped off the line. His e.t. was faster, his mph was way faster but I got the light.
And just to head off the flame war - I am not claiming I'm faster than a 3.5 6 spd - just giving an example.
Keep in mine too that .1 in 60' is about .17 in et gain.
09-10-2002, 01:35 AM
#14
Senior Member
Join Date: Nov 2001
Posts: 355
Originally posted by Max_Gator
Even with my recently crappy r/ts - .7 - I'm getting about 1/2 of a second head start. That's a lot. That makes a 14.7 a 14.2.
Even with my recently crappy r/ts - .7 - I'm getting about 1/2 of a second head start. That's a lot. That makes a 14.7 a 14.2.
Keep in mind the your reaction time doesn't figure into your 1/4 mile, just your ET. But yes, you can win w/a worse 1/4 mile if the other guy has a much worst r/t.
MiniRX7: Yes, you should work on your r/t. Try to go on the last yellow and if it's still not great, try going in the middle of the 2nd yellow (it helped me).
09-10-2002, 05:41 AM
#15
Originally posted by cwerdna
0.7 is not THAT crappy a rection time. 0.500 is a perfect reaction on the full/sportsman tree. If it's under 0.500, you jumped the gun.
Keep in mind the your reaction time doesn't figure into your 1/4 mile, just your ET. But yes, you can win w/a worse 1/4 mile if the other guy has a much worst r/t.
MiniRX7: Yes, you should work on your r/t. Try to go on the last yellow and if it's still not great, try going in the middle of the 2nd yellow (it helped me).
0.7 is not THAT crappy a rection time. 0.500 is a perfect reaction on the full/sportsman tree. If it's under 0.500, you jumped the gun.
Keep in mind the your reaction time doesn't figure into your 1/4 mile, just your ET. But yes, you can win w/a worse 1/4 mile if the other guy has a much worst r/t.
MiniRX7: Yes, you should work on your r/t. Try to go on the last yellow and if it's still not great, try going in the middle of the 2nd yellow (it helped me).
The RT seems to be different from track to track. All of the tracks I go to use .400 and in the past I have seen some that used .000 .
09-10-2002, 08:25 AM
#16
Senior Member
Join Date: Aug 2002
Posts: 1,280
If your RT is over 1 sec, then you waited till the green. If you go on the last yellow, you'll get about .7, I consistantly had those results. I didn't think to try the second light though, cuz all the pro drag cars I see are doing .5 - .6 RT, so I figure .7 is d@mn good enough.
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