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Old 05-02-2009, 10:25 AM   #1
VuickB6
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Default Struggled at the track again!

Went to Houston Raceway last night hoping to get some better times, but came back disappointed

My car has the following mods:

Grimmspeed Bellmouth Downpipe
Grimmspeed Uppipe with 38mm EWG
CSS TMIC
K&N Panel Filter

Tuned by AWDTuning, estimated whp was ~235whp

Track conditions were mildly warm and felt pretty humid as well. All 3 runs were within 15 minutes of each other and all 3 felt really strong.

#1

60' - 2.148
330 - 6.130
1/8 - 9.412
MPH - 74.72
1000 - 12.242
1/4 - 14.625
MPH - 93.88

Launching from ~4500rpm, shifting was at 7000 and trapped at the top of 3rd.

#2

60' - 2.262
330 - 6.213
1/8 - 9.495
MPH - 75.13
1000 - 12.308
1/4 - 14.678
MPH - 94.37

Shifting was same as #1

#3

60' - 2.069
330 - 6.309
1/8 - 9.697
MPH - 73.29
1000 - 12.570
1/4 - 14.957
MPH - 93.70

Same as the rest but launched at almost 5000rpm, clutch was getting hot and had a little problem getting into second.

I know the 60' times aren't that great, but that's about as hard as I'm willing to launch it. I don't really feel like breaking the trans But even then I thought they were pretty good launches, I blew all 3 people away out of the hole badly.

And maybe I'm wrong about this, but I figured riding out 3rd and saving a shift would be quicker than short shifting right before finishing. That's why I took it out to almost 7500rpms.

Questions, comments, concerns, criticisms, critiques, flames?
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Last edited by VuickB6; 05-09-2009 at 10:06 PM.
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Old 05-02-2009, 10:26 AM   #2
VuickB6
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Also, the car weighed 3190 on the scales, add in another 210 for me.
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Old 05-02-2009, 11:24 AM   #3
69subaru360
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Add launch control, then you can leave on boost and get your 60 foot time down to the 1.7-1.8 that it should be. Launch control is actually easier on the trans. Hold it to the floor, build boost, let the clutch out. This alone will drop a half second off your et. Every tenth you lose in the 60 foot is worth 2 tenth in the et.

Don't run the car back to back like that for good times, you are heating up the TMIC.

Shift much lower around 6500 and shift to 4th gear. You aren't making any power at 7500 rpm with a stock turbo stock cam 2.0 Your mph is low and hopefully it's because you aren't getting into 4th gear. If not something else is wrong with the car, you should trap higher.

I hate to say it, but at your power level all the ewg is doing is making noise.
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Old 05-02-2009, 12:56 PM   #4
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why do you have an ewg setup on a td04? and i dont see any EM listed, what are you tuned w/?
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Old 05-02-2009, 01:49 PM   #5
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No offense, but there is a lot of improvment just with better driving. You're trap speed is about that of a stock WRX, which isnt terrible considering the driving. It's obvious you are bogging on the launch which is probably costing you at least .5 sec. I think a really clean pass will result in a high 13 at close to 100mph.

Also is your exhaust stock from the cat back?? If so it's acting like a cork in the system and probably limiting the top end (exactly what you need in drag racing).

I'd work on the launch and experiment with different shift RPMs. You will have to finish the 1/4 in 4th if you want to trap over 100mph as your car should be.

Also for poops and giggles try taking the stock cat-back off and see what happends.

If you do have a free-flowing cat-back then your car might need some attention. Fresh plugs, fuel filter, air filter, etc. Probably wont hurt to do a compression check as well just to make sure the motor is still good.
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Old 05-02-2009, 09:48 PM   #6
VuickB6
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Quote:
Originally Posted by 69subaru360 View Post
Add launch control, then you can leave on boost and get your 60 foot time down to the 1.7-1.8 that it should be. Launch control is actually easier on the trans. Hold it to the floor, build boost, let the clutch out. This alone will drop a half second off your et. Every tenth you lose in the 60 foot is worth 2 tenth in the et.

Don't run the car back to back like that for good times, you are heating up the TMIC.
I didn't even think to have launch control added, I figured it was hard on the trans and didn't feel like breaking it till I got an STI trans.
And I ran it back to back like that because I got there late, and waited about 30 minutes for the first run(which I didn't get a slip for) and it cleared out afterward. So I didn't have much time to let it cool between runs before they closed, I was one of the last ones to make a pass.

Quote:
Shift much lower around 6500 and shift to 4th gear. You aren't making any power at 7500 rpm with a stock turbo stock cam 2.0 Your mph is low and hopefully it's because you aren't getting into 4th gear. If not something else is wrong with the car, you should trap higher.

I hate to say it, but at your power level all the ewg is doing is making noise.
I'll definitely try that, I'm making another trip next Friday and we'll see if that makes the difference. And the mph is definitely low, stock I trapped 91mph, but what is weird is that I gained half a second compared to stock which the modifications I have now, but at the same 60' times.

And I don't plan on sticking with the stock TD04 very long, but to go Stage 2 for only $1000 total(parts,labor,tuning) I couldn't pass it up.
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Old 05-02-2009, 09:49 PM   #7
VuickB6
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Quote:
Originally Posted by wrxtremeWGN View Post
why do you have an ewg setup on a td04? and i dont see any EM listed, what are you tuned w/?
See above post about the EWG.

And Keith @ AWDTuning road tuned it after installing the Downpipe/Uppipe.
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Old 05-03-2009, 12:42 AM   #8
VuickB6
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Quote:
Originally Posted by Steve.804 View Post
No offense, but there is a lot of improvment just with better driving. You're trap speed is about that of a stock WRX, which isnt terrible considering the driving. It's obvious you are bogging on the launch which is probably costing you at least .5 sec. I think a really clean pass will result in a high 13 at close to 100mph.
I didn't bog but the very first pass(which like I mentioned, I didn't get a slip for) but the others were clean launches. I held them at whatever RPM, and let the clutch out till I felt it juuuuuust start to move, then on green I let it out aggressively and floored it at the same time.

Quote:
Also is your exhaust stock from the cat back?? If so it's acting like a cork in the system and probably limiting the top end (exactly what you need in drag racing).

I'd work on the launch and experiment with different shift RPMs. You will have to finish the 1/4 in 4th if you want to trap over 100mph as your car should be.

Also for poops and giggles try taking the stock cat-back off and see what happends.

If you do have a free-flowing cat-back then your car might need some attention. Fresh plugs, fuel filter, air filter, etc. Probably wont hurt to do a compression check as well just to make sure the motor is still good.
I'm stage 2 with a Perrin cat-back

Plugs are only 1 month old, K&N is only 3 months old and was cleaned/re-oiled before I put it in. Fuel filter I have no idea about, but the car pulls very strong and judging by the cars I'm beating on the street, the slow times are most likely because of me being scared to break the trans and shifting too late.

We shall see next week
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Old 05-03-2009, 03:33 PM   #9
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Quote:
Originally Posted by Battle Wagon View Post
Launching from ~4500rpm, shifting was at 7000 and trapped at the top of 3rd.
...oh how I miss that.

I have a 2004 STi trans and thin tires on my bugeye. It is like drag racing in a rowboat. I'm in 5th for 500 or so RPM.
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Old 05-03-2009, 03:37 PM   #10
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You can launch from 3000 RPM and get better 60' times.

You are bogging at the line, aren't you?

sotc
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Old 05-03-2009, 03:58 PM   #11
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traps should be around 96, at least they are here at 1200 ft elevation on 91 octane, for a car like yours.

practice your launch like others have said!!
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Old 05-03-2009, 04:06 PM   #12
V6TurboTA
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It shifts into 4th or it gets the hose again.
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Old 05-03-2009, 08:15 PM   #13
VuickB6
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Quote:
Originally Posted by saab-on-the-cobb View Post
You can launch from 3000 RPM and get better 60' times.

You are bogging at the line, aren't you?

sotc
See below!

Quote:
Originally Posted by Battle Wagon View Post
I didn't bog but the very first pass(which like I mentioned, I didn't get a slip for) but the others were clean launches. I held them at whatever RPM, and let the clutch out till I felt it juuuuuust start to move, then on green I let it out aggressively and floored it at the same time.
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Old 05-03-2009, 08:16 PM   #14
VuickB6
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Quote:
Originally Posted by V6TurboTA View Post
It shifts into 4th or it gets the hose again.
Will do!
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Old 05-03-2009, 08:17 PM   #15
VuickB6
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Quote:
Originally Posted by CKxx View Post
...oh how I miss that.

I have a 2004 STi trans and thin tires on my bugeye. It is like drag racing in a rowboat. I'm in 5th for 500 or so RPM.
Can't wait to get mine, but I'm looking to get an 07 trans!
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Old 05-09-2009, 10:46 PM   #16
VuickB6
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Went back to the track last night to see if I could improve on my times. I tried to be more aggressive with the launch, shifting was done at 6500rpm and started finishing in 4th gear instead of wringing out 3rd. Neither of these proved to help out my times at all.

#1

R/T - .350
60' - 2.380
330 - 6.317
1/8 - 9.567
MPH - 76.87
1000 - 12.347
1/4 - 14.722
MPH - 94.33

Launched at ~4500rpm and bogged Shifting was clean. This was done right after I got to the track, went through tech, and sat in line for 30 minutes. Car was pretty warm I imagine.

#2

R/T - .376
60' - 2.184
330 - 6.065
1/8 - 9.336
MPH - 76.11
1000 - 12.136
1/4 - 14.540
MPH - 93.02

Same as #1 minus the bog. This was against a BMW 645 vert that challenged me while we were waiting. I got him badly off the launch and he was playing catch up the whole time. Only beat him by a tenth though! It was pretty fun

#3

R/T - .296
60' - 2.112
330 - 5.913
1/8 - 9.118
MPH - 77.64
1000 - 11.883
1/4 - 14.253
MPH - 94.38

This was done after letting my car cool down for an hour and letting it sit with ice on the intercooler up until it was my turn to pull up to the waterbox. The intercooler was sweating badly and was COLD to the touch, I was also pushing the car the whole way.
Everything showed improvement except for the 60' and MPH

So having a really cold intercooler seems to be the only thing that helped get quicker times, but even then, with the power I'm making I should be trapping a lot higher right? Finishing in 4th showed ZERO improvement over wringing out 3rd gear

With these times, I shouldn't be beating half of the cars I am on the street. Anyone have an ideas about what could be causing such slow times?

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Old 05-09-2009, 11:01 PM   #17
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In 6 runs you've dropped nearly 1/2 a second without any real improvement in 60' times. I'd say keep on practicing is going to be the best, most honest advice you are going to get.
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Old 05-09-2009, 11:44 PM   #18
69subaru360
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More practice or L/C to get the 60' down to 1.7-1.8 where it should be.

MPH is still low, datalog the car going down the track to see if it is pulling timing due to false knock on the shifts, it's very common.

When it's all right you should go mid 13's at close to 100
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Old 05-10-2009, 01:59 AM   #19
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You're times are in line with your 60 foot...your trap speeds look a bit low, but not terrible either...really for stock turbo on that car without at least a 1.8 60'...that's about as good as you'll get...a 1.8 60' will put you in high 13's...you need to shift at the end, I know it bites, but I have to too.
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Old 05-10-2009, 02:26 AM   #20
VuickB6
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Quote:
Originally Posted by 69subaru360 View Post
More practice or L/C to get the 60' down to 1.7-1.8 where it should be.

MPH is still low, datalog the car going down the track to see if it is pulling timing due to false knock on the shifts, it's very common.

When it's all right you should go mid 13's at close to 100
I'm going to see about getting L/C here shortly, sounds like it's the way to go for better times.

And I'll get what I need to start logging, I'm interested in your false knock theory. I've already started reading threads that talk about the issue.

Quote:
Originally Posted by AntiochCali View Post
You're times are in line with your 60 foot...your trap speeds look a bit low, but not terrible either...really for stock turbo on that car without at least a 1.8 60'...that's about as good as you'll get...a 1.8 60' will put you in high 13's...you need to shift at the end, I know it bites, but I have to too.
If that's the best I can do for know I guess I'll just have to be happy with it.

Any idea why I didn't see an increase in MPH after finishing in 4th gear rather than 3rd? That's what really has me confused
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Old 05-10-2009, 04:18 PM   #21
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Quote:
Originally Posted by Battle Wagon View Post
Any idea why I didn't see an increase in MPH after finishing in 4th gear rather than 3rd? That's what really has me confused
I'm guessing here, but my guess is that you need to shift better/faster..I know I did about 3 mph better by shifting, and of course the car is still accel at the end - whereas if I don't shift, the car has no pull that diff, when I shift well, is around a 3 mph trap.

Note: getting a 1.8 or better 60' gives me a better 1/4 but a slightly worse trap.
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Old 05-10-2009, 10:26 PM   #22
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Not sure how much better/faster I can get with the shifts. I can't even remember the last time I missed a shift, and I'm shifting as fast as I possibly can!

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Old 05-10-2009, 11:16 PM   #23
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Maybe try to find a local guy that really knows how to launch a near stock 02-04 wrx and have him show you what he does to get good 60' times?

I showed a kid how to launch his 02 WRX ( 2 or 3 launches in his car in the back of the lot at the track) and he picked up a half a second over the course of that day.

You might be underestimating yourself and or your car

1.8's in a stockish 03 wrx is very possible.
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Old 05-11-2009, 01:10 AM   #24
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Quote:
R/T - .296
60' - 2.112
330 - 5.913
1/8 - 9.118
MPH - 77.64
1000 - 11.883
1/4 - 14.253
MPH - 94.38
Drop the 60' to a 1.7 and thats easily a mid 13 run

I was running 1.9 60's and doing 13.4-13.6', friend hops in the car cuts a 1.7 and runs 12.9. Dont beat yourself over it man.
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Old 05-11-2009, 01:36 AM   #25
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this post got me thinking back... waaaaay back.

http://forums.nasioc.com/forums/show...6&postcount=36


BTW I recall when I had just the boost controller and air filter on my 02 WRX I was shifting into 4th gear at around the 1000' mark.
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