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Old 09-29-2000, 10:07 PM   #1
Eric SS
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Member#: 1914
Join Date: Jul 2000
Chapter/Region: SWIC
Location: 2013 335i, 2011 G37 coupe
Vehicle:
2000 2.5RS w/ EJ22T
swap and N20. gone. : (

Thumbs down 1/4 mile times before and after S-AFC!

Well, I have to say that so far the S-AFC hasn't been any help. Not to mention that my check engine light is constantly on but that I can handle. Anyway Here are the pathetic times. The car is stock (MY00) except for Stromung Dual Tip and Mid pipe.

before w/S-AFC
R/T 1.002 .808
60' 2.160 2.171
330' 6.606 6.562
1/8th 10.303 10.273
mph 66.41 66.23
1000' 13.486 13.486
1/4 16.206 16.242
mph 82.87 81.92

Well, There it is. That is with the S-AFC set at -10% 1000-2000, -9% 2000-4000, -8% 4000-5000, -7% 5000-6500 for both high and low throttle.

As you can see the times are pretty much identicle. Without the S-AFC was actually a bit faster! This was in about 95 degree weather (Phoenix)

Eric
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Old 09-30-2000, 12:59 AM   #2
IMPBOY
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Location: San Ramon CA, USA
Post

Something is wrong. You shouldn't have the CE light. Check the wiring and make sure everything is connected to right pins. I also have AFC on my 00 and no CE and .6 off the 1/4 mile.
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Old 09-30-2000, 06:40 AM   #3
john seput
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Post

How did you guys connect the AF wire? Are you reading after the cat?
Js
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Old 09-30-2000, 08:53 AM   #4
RidinLow
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1995 325i
Arctic Gray

Post

Impboy, what settings are you running?

I'm finding that a 0% correction all across the board on my MY00 yields EGT's that are really close to optimal...
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Old 09-30-2000, 09:42 AM   #5
Akiata
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Location: Wa
Smile

shouldn't you only use a AFC when you put on a intake? I have one on my legacy but I also have a weapon R intake.

And about the check engine light try disconecting the battery overnight (just to be sure) then reconect it and do the normal ECU reset. My CE light came on too. It also helps if you are friends with a subaru mechanic and can take it to him so he can plug in the OBDII and delete the light.
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Old 09-30-2000, 10:37 AM   #6
Eric SS
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Member#: 1914
Join Date: Jul 2000
Chapter/Region: SWIC
Location: 2013 335i, 2011 G37 coupe
Vehicle:
2000 2.5RS w/ EJ22T
swap and N20. gone. : (

Post

I don't have the AF wire of the S-AFC hooked up. I'll try to reset the ECU. I'm pretty sure all of the wiring is fine. All of my monitors are working.

Eric
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Old 09-30-2000, 10:24 PM   #7
Eric SS
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Join Date: Jul 2000
Chapter/Region: SWIC
Location: 2013 335i, 2011 G37 coupe
Vehicle:
2000 2.5RS w/ EJ22T
swap and N20. gone. : (

Post

5 speed.

Eric
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Old 09-30-2000, 11:00 PM   #8
Red-Imp
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Location: Gilbert, AZ, USA
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2000 Imp 2.5 RS, SRP
& a fast red car ;)

Post

OT: Dude! You should have went rallycrossing with us in Prescott. We had a blast. I finally found something I can do.

Oh, and sorry to hear about the S-AFC. I don't think it will be much help w/o some sort of intake change (preferrably forced induction).

-Red
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Old 09-30-2000, 11:35 PM   #9
Greg I
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Location: Vancouver, BC, Canada
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2002 Acura RSX-S
Blue

Question

Well, your reaction time was slower on the second run.

If you take those numbers at face value, and assume all things being equal, it looks like you had significantly more power until you hit 60mph, where it trailed off (even with a slower R/T you caught up to where you were on the first run).

OR, you didn't shift as well towards the end of the run the second time.

OR, your 1-2 shift was better the second time.

Too many variables. You need to do more runs than that (which is my point). In any case, I wouldn't expect a huge difference in 1/4 mi times with relatively light mods...

Greg.
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Old 10-01-2000, 12:17 AM   #10
WRC 555
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1999 2.5 RS-T RBP
EJ257 Hybrid Link'd

Post

Is your car 5 speed or automatic?
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Old 10-01-2000, 01:04 PM   #11
munkis
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rallyarmor.com

Post

I think you need to work on your reaction time, the safc wont help you there.
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Old 10-01-2000, 01:11 PM   #12
bsquare
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Member#: 1911
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Location: Seattle, WA, USA
Vehicle:
2000 Impreza 2.5RS
Silverthorn Metallic

Question

What year is your car? MY99s seem to run lean with intake+exhaust, while MY00s seem to run rich.
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Old 10-01-2000, 07:55 PM   #13
WRC 555
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1999 2.5 RS-T RBP
EJ257 Hybrid Link'd

Question

Does reaction time matter? What I mean is does the time start when the light hits green or does time start once your car starts moving?
I thought reaction time only matters if you actually are racing against someone but doesnt affect time.
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Old 10-01-2000, 09:15 PM   #14
Eric SS
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Member#: 1914
Join Date: Jul 2000
Chapter/Region: SWIC
Location: 2013 335i, 2011 G37 coupe
Vehicle:
2000 2.5RS w/ EJ22T
swap and N20. gone. : (

Post

WRC 555: You are correct. Reaction time has NOTHING to do with elapsed time. I could have a 10 second reaction time and still run a 16 second e.t. That's why in top fuel you will sometimes see someone with a slower e.t. beat someone with a faster e.t. if the person with the slower e.t. had a lot better reaction time.

Thanks

Eric
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Old 10-01-2000, 09:54 PM   #15
Greg I
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Location: Vancouver, BC, Canada
Vehicle:
2002 Acura RSX-S
Blue

Post

RE: reaction time

Huh, didn't know that. Obviously I don't run the 1/4mi . The rest of what I said still stands though. I think you need to do more runs.

Greg.
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Old 03-03-2001, 10:57 PM   #16
trojan9x
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2001 2.5 RS: Holbert
Memorial Winner 2003

Post

how much are they and how hard are they to install?
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Old 03-03-2001, 11:05 PM   #17
cj917
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Member#: 627
Join Date: Dec 1999
Location: boston
Vehicle:
MY96 outback wagon

Question

like impboy said, something else might be wrong if your CE light is on a lot (maybe o2 sensor? are you part of the recall?)

also, with stock intake you are not gonna see much difference at all... and i thought some of us found that MY00 runs rich below 3500-4000rpm while lean above that?

what are you tuning your settings with?
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Old 03-03-2001, 11:10 PM   #18
kastle
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Location: Phoenix, AZ
Vehicle:
1999 Outback Sport
Steel Blue Mica

Post

It's more like Eric's car is just that slow. He's got a runt until the Ludespeed kit goes into it.
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Old 03-03-2001, 11:16 PM   #19
XT6Wagon
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Vehicle:
04 STi
White

Post

Something to think about:

If the track conditions are not exactly the same they will not produce the same results.

Also HOW you drive matters alot. You can for instance trade RT for ET if you know a little trick.
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Old 03-04-2001, 03:58 AM   #20
RS-LOVER
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2000 Impreza RS
Blue Ridge Pearl

Post

I'm sorry to say but that isn't very good at all. I ran a 16.097 at Speedway in Orlando. That is completely stock! The only thing i did was remove the hood-scoop plate,and took of the front plastic air intake,silencer box,hood vent(stuck intake tube out hole)and side-stepped the clutch at 5200rpm.
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Old 03-04-2001, 08:06 AM   #21
trojan9x
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Join Date: Dec 2000
Location: Effort, PA
Vehicle:
2001 2.5 RS: Holbert
Memorial Winner 2003

Post

i got a 14.8 1/4 and 6.8 0-60 according to my G-tech with just the Ganz flow as being my only performance upgrade to date.
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Old 03-04-2001, 11:25 PM   #22
ImprezaRS dot com
over boosted again
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2013 B9 Tribeca LTD
2005 Impreza 2.5 RS

Post

Trojan9x - the best "Ganzflow as only mod" qtr mile time I know of was Spunky at 15.08 with 200 lbs removed from the car, and 15.4 without him stripping the car. These times were real, from the drag strip. Wow!
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Old 03-05-2001, 07:31 AM   #23
sanders
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Member#: 187
Join Date: Aug 1999
Location: Orlando, Florida USA
Vehicle:
Jade 05 b0x
Black Cherry Pearl

Post

i have the AFC in MY99... took off 0.2 off my 1/4. my best before then was 15.6@85 (3 times in a row) then i installed the AFC, and i have hit 15.4@85 and 15.4@87. all of my runs were also done at Orlando Speedworld. my mods were just Brospeed Muffler and the AFC - no I/H/ or mid-pipe... (oh yeah, full interior and a trunk full of my school books and spare tire )
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Old 03-05-2001, 08:36 AM   #24
ColinL
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Location: Wichita, KS and Whoring, OT
Vehicle:
'03 Evo, Rice White
'01 Erion CBR 929

Post

Quote:
Also HOW you drive matters alot. You can for instance trade RT for ET if you know a little trick.
Well, if the track allows a variety of staging locations then shallow staging will give you a faster ET at the expense of RT because you're moving before you break the beam.

Anyway Eric, an intake would help but a turbo will help more. Unfortunately I would agree with the runt theory, 82MPH isn't good for a stock RS.
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Old 03-05-2001, 09:09 AM   #25
Gambit
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Location: The meeting place
Post

I thinku don't need an AFC for map based Imprezas. They don't run lean. But if you want shiny lights....
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