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Old 08-06-2002, 10:46 PM   #1
Stilletto
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Member#: 21866
Join Date: Jul 2002
Location: Atlantic Beach,Fl
Vehicle:
2002 WRX Silver
13.82 1/4 Almost Stock

Exclamation Hellllpppppp!

I am seriously under the impression that something is wrong with my car brcause i know it can't be my driving ...here is my delima...
My mods are these....the 3/6 connector thingy and the silencer removed....thats it...so here is my problem...i am searching through my slips to find the best one yet....

rt .951
60' 2.098
330' 6.212
1/8 9.609@72.43
1000' 12.503
1/4 14.957@91.35

i have 27 launches now and that is the best i can come up with...
my launch tecnique is as follows....hold revs at 3000 wait for second yellow...floor it and drop the clutch at 5500...i get a pretty good pull off but that is the best time i can get....it is pretty consistant, but not what i should be getting....I have 17" ADR M Classic Wheels with 215 45 r17 nankangs.. my car was purchased with 9000mi on it and now has 18600mi..i am wondering if the wheels are adding up to the difference? I can't seem to find the weight of the wheels but according to ups they are 29lbs a piece...that seems a bit heavy to me...i know that the original owner had to have 1st driven gear replaced but i really don't feel that there is any problem although the clutch doesn't seems as tight as it used to...i am getting pretty frustrated and don't really see the point of going back to the track to run the same times and put more wear on if i can't beat that time and there is no use adding and mods until i can get the correct times for stock which i pretty much am not.....should i try it with 16" wheels?
Would that help my 60' time? i know i am launching correctly so i am just really not happy with....ok i will quit rambling but any imput of things i should have checked would be greatly appreciated.....

Paul
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Last edited by Stilletto; 08-06-2002 at 11:03 PM.
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Old 08-06-2002, 10:53 PM   #2
DannyGT
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If you have only those mods, its as easy as this :

LAUNCH BETTER -- if you get that 2.0 down to a 1.8 you'll have the time that u seek.....Before I had any real power mods, I have the 18 inch rims i have now, and I was getting LOW 1.8's
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Old 08-06-2002, 11:04 PM   #3
Stilletto
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Join Date: Jul 2002
Location: Atlantic Beach,Fl
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2002 WRX Silver
13.82 1/4 Almost Stock

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I have tried every launch imaginable....what is the best?
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Old 08-07-2002, 03:48 AM   #4
US2JDM
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1995 White BK6

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Quote:
Originally posted by Stilletto
I have tried every launch imaginable....what is the best?
Practice, practice, practice.
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Old 08-07-2002, 01:19 PM   #5
darkmoomlord
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silver

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shave some time off your reaction time.....youre almost a full second there!!!!cut .45 off it and you look good!
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Old 08-07-2002, 01:33 PM   #6
SGOSWRX
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12.8 @ 105 mph

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It not the tires. I consistantly run great times 1.75 - 1.85 60' with my 17'' Prodrives WITH 215/45/17' I also ran 13.3 in the 1/4 mile running these wheels with just Turboxs stage 2 Setup.

You need to get a better launch. If done correctly you should pull 1.80s and that will definately help your times. Also run you car to 7k between shifts.

Also down here in S. Florida - heat/humidity you will run a little slow. In stock form you should be able to pull low to mid 9s in the 1/8 mile and low to mid 14s in the 1/4 mile. A good 60' time is how it happens.
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Old 08-07-2002, 04:30 PM   #7
Stilletto
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Join Date: Jul 2002
Location: Atlantic Beach,Fl
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2002 WRX Silver
13.82 1/4 Almost Stock

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Well, unless it's just the track here i Jacksonville that sucks i can't see how else to do it....hard launch at 4000,5000,6000,redline....Slipping the clutch slowly,quickly,you name it i have tried it....we only run 1/8 here is jax but in gainesville we can run 1/4 and that track isn't as wet..
however, there are other scoobys i have seen running sub 9.4's even at our crappy track here so i have no clue...i am always .2 sec behind at 2.0 in 60' i just don't think i have the power to go any quicker but i wouldn't know why unless it's the almost 19000 miles i have on it or my clutch is slipping a little.....if you live in the jacksonville area come drive my car at the track and see what i am saying
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Old 08-07-2002, 04:53 PM   #8
Burnout
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1997 Brighton

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Quote:
shave some time off your reaction time.....youre almost a full second there!!!!cut .45 off it and you look good!
Id like to see that

Reaction time doesn't matter, you're time starts when you do.
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Old 08-07-2002, 05:35 PM   #9
hotrod
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Location: 13.239@102.85 @ 5800 ft on 13T
Vehicle:
2002 Impreza WRX
e85forum.net

Default Look to other details

With that trap speed of 91.35 and a perfect launch you should run a 14.5 time in the 1/4 -- at least your making enough power to do that.

There are several other details to check out also, as the sum of the times for several small changes can make a big difference.

Shift points, run to 7k in low and shift around 6.5k in the other gears. You'll have to experiment a couple hundred RPM up or down from those numbers to see what your car perfers. You can give away a lot of time by reving too high on your shifts. If your going to miss a shift point it usually costs you less time if you shift early, so start a little low and work up a few hundred rpm at a time.

What are you doing for you last shift, holding in 3rd through the traps or shifting to 4th ? Don't shift up to 4th unless you absolutly have to to avoid hitting the rev limiter in the traps.

Tire pressures can also make a difference, in my car I cost myself almost a full second if I run too low tire pressures. I find 35 # + works best for me. If your running low pressures, your causing a lot of unnecessary rolling resistance. The guys with big power can lower tire pressure to manage wheel spin, and not loose much because they have the power to pull the extra rolling resistance. A stock car will not.

You didn't mention your car's weight, but little things like running with a full fuel tank vs 1/4 tank will also cost you a few tenths.

Taking out the spare tire is good for 26 #. Excess gas in the tank and extra weight in the trunk transfers weight off the front tires which will lead to excess wheel spin.

Your slow 60' time and the difference between your ideal ET and your actual ET implies most of your lost time is in the first 100 ft or so of the strip. You may be spinning your tires more than most. Are you keeping your tires dry and not going through the water box ?

Try a quick dry hop before you stage just to be sure your tires are clean.

Are you cooling down the IC good between runs and not letting the engine idle in the staging lanes. Hot intake air can cost you 20 - 30 HP.

Thats the stuff that comes to mind. Its tough to analyze without being able to see a run. You might have some one vidio tape your run and watch it to see if you can pick something up. You could be staging very deep or something that will show up on a vidio but be almost impossible for you to determine from inside the car.

Larry
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Old 08-07-2002, 07:45 PM   #10
AZScoobie
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netcom.com

Default Re: Hellllpppppp!

I am going to try to help you. Something is not right.

First off your sixty foot is high. This is probably due to your rims. If you have your stock wheels put them back on. If not find a WRX owner that will let you race on his. Buy him dinner or something. Most people will help out a fellow WRX owner. I know on my personal car when I had less then 300hp the wheels made a huge difference. 2-3 tenths is what I kep reporting on the forums. Now, with much more power the difference is not as great but still... It is a tenth or two. Keep in mind a stock wheel and tire is a total of 40 lbs on my scale. my 18's with tires are 39 lbs. They are less... but still hurt me. They are the same overall size as well. They are harder to run since the tire's weight is out towards the edge. As an option if you sold your wheels simply buy a set of stockers from the forum.

Estimate #1: 1-2 tenths off your sixty and 3-4 tenths off your overall ET by going to stock wheels at stock pressure.

Next up. Your MPH is low. This means your HP is lower then you think. Find out why your car has low power. Could be a slipping clutch as well. Keep in mind that clutches slip several revolutions at WOT. A slipping clutch might allow your engine to sping 10 turns to every 2-3 of your tranny and you would not notice. Clutches dont ZING and let go until they are GONE.

Next time try this strategy and let us know what happends:

Stock wheels.
Stock pressure.
Remove all excess crap from the car including the spare and jack.
Run the car down to E. Add in 4 gallons of Unleaded race fuel. find it. Your town or track has it. OR add in one gallon of tolulene to 5 gallons of normal gas.
Reset the stock ECU by pulling the neg cable and hitting the brakes.
Lower boost to 12 psi.
Drive 50 miles at 12 psi. Drive normal.
if you dont have an MBC just run stock boost until you get to the track and then put the restrictor back in.


Do your WOT launch at 5000 rpm. Fast on the clutch. Any lag or slip and you need to hit it harder. You should have some front wheel spin. Shift at redline. No power shifting. Just smooth acurate shifts.

report back.... Follow this exactly.


Estimate: 14.0-14.3 @ 94-96mph. Its hot man.. Dont expect to much.


HTH

CT
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Old 08-07-2002, 08:49 PM   #11
ShaggyGT
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UR35R/Rotated Intake Mani

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Well I am in the Jacksonville area and I always race out at JaxRaceways and from the 3 times I have ran my WRX out there I have gotten awesome times. The first two times I went to the track I got a 9.0 @ 76mph and the third time I went the temp. and humidity was bad so I only ran 9.2 @ 74mph. Most of my runs I get 2.0 60' times and I am running on stock wheels and tires. I am sure I could get into the 8's with some beter tires to get my 60' times down. The only mods I had the first two times I went were the silencer removal, boostmonkey, and Intercooler Spray Kit. The third time out I took out the boostmonkey and replaced it with a MBC, so I had to tweak it out to get the psi I wanted. I am sure it isnt the track that is the problem, there has to be other issues that come into play. Like the fact that you have 17" rims on a stock car. If you got a boost controller you could up the boost to make enough power to compensate. I am always out at the track on Tuesdays when I am not working, I would be more than glad to help you get your times down.
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Old 08-07-2002, 11:49 PM   #12
Stilletto
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Member#: 21866
Join Date: Jul 2002
Location: Atlantic Beach,Fl
Vehicle:
2002 WRX Silver
13.82 1/4 Almost Stock

Default

WOW i really appreciate all the info i never expected that much help...i guess we scooby owners stick together...

Well, i am going to try to answer everybody's questions and fill in a little although you have all given me a pretty good picture of what to do next....

Darkmoomlord: i have been working on those reation times...got it down to around .5xx usually, although i don't thnk that counts toward time.

SGOSWRX interesting about the tires but i have no power mods and i think that my combined wheel weight would exceed yours if these rims i got are as heavy as i think they are...also i think my tires may not be gripping enough, as i am getting lots of wheel spin....

Hotrod: That is some REAL good advice on trial and error with shiftpoints, probably the best explanation on how to determine the correct point i have ever heard. And to answer some of your questions...on the 1/8 mi track i just get into third briefly but on the quarter i run it out in 3rd..my tires are 35 all around..i have tried removing the spare but i could still get another 20lbs or so out i am sure and i never run on more than 1/4 tank..i have not tried cooling the intercooler although i was thinking of bringing a spray bottle with ice water because i know i am getting heat soak...and i hate the water they put down on the track.....i have some video i am trying to get posted on the web will let you know where to go...

AZScooby: Well, i agree that i think that it is a combination of the rims and a possible slipping clutch....i am afraid that when i take it in they will probably not warranty it although i believe that it was probably slipping when i bought it at 9000 miles espicially wwith the 1st driven gear already replaced...I will try what you say next wed night and report back...

02_scooby_wrx: I think that i saw you tuesday, in front of me at the finish line lol....i was the guy in the silver scooby...best i could get that night was 9.7 and i know you were getting at least .3 sec faster...next time we are out there drive my car so you can see what you think...

All in all i think that i will get some 16's to test, reset the ecu and keep the ic cool...experiment with launches and shifting and if all else fails i guess i'll have a heck of a time expalining to the dealer that i need to be .3 sec faster and they need to figure out why

Thanks for all the info, you guys are great!!!!!!

Paul
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Old 08-08-2002, 01:31 AM   #13
ShaggyGT
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UR35R/Rotated Intake Mani

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Yeah I relized who you were after I went to your homepage in your profile and saw pictures of your car. I am off work next tuesday night so I will be out at the track and I would more than happy to help you get your times down. I have a couple little tricks that I have learned from reading post on this board. I also have a DeltaDash that I can hook up in your car so we can see how it is running while you are making your runs. If you dont know what a DeltaDash is or what it is capable of go here: http://www.ecutek.com/frame_products.html . And if youd like I can give you a ride in my car so you can see if there is any difference and/or I can ride in yours and see if we can figure out what the problem may be.
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Old 09-07-2002, 01:53 AM   #14
Stilletto
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Join Date: Jul 2002
Location: Atlantic Beach,Fl
Vehicle:
2002 WRX Silver
13.82 1/4 Almost Stock

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UPDATE:

I still have the 17" wheels but i was able to try it again with resetting the ecu and driving for a couple of weeks and with a fast clutch release at around 5500 rpm i was able to smoke just about everything including a turbocharged celica (2001 i think) and a very nice mustang gt with some gearing mods however...here is my best time now to date:

rt/1.235 (i have that down to around .600)
60' 2.089
330' 6.116
1/8 9.505 @72.81
1000' 12.395
1/4 14.890@90.17

my mph seems low and i am still harping, i know, on the fact that it is either wheel weight/diameter since i have no mods or a slipping clutch... but i can't remember if i shifted into 4th on that run or not....i had a slightly better run going but missed 2nd and that was all she wrote....


Anyhoo, i have put over 30 something hard launches on the car and i figured there really isn't any use in trying again until i find some "loaner" 16" wheels to see if that is the problem and also the cooler weather may bring a better response....

Just for laughs, my gf was watching from the stands and some people were laughing as i pulled up to the staging lane and said what is that thing doing here, whatever it is....she said it's a wrx...which they didn't recognize....then when they saw the 14.8 come up at the end they said Damn! Oh yea, thats one of those awd turbo rally cars...those things are cool......we have to learn em sooner or later
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Old 09-17-2002, 10:45 PM   #15
WaRG0blin
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Yeah I just got mine, i did my first run and got a 14.9. The announcer was all like "Don't be fooled those Imprezas don't look like much. But watch out, they are somewhat quick." I toasted a BMW with ghetto looking slicks in the rear. It was all fun.
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