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Old 09-26-2007, 11:17 AM   #1
WRX4eva
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Default 18G and 20G owners need help w/ shifting

Hey guys,

I'm heading to ETown tonight, and was wondering if you guys can help me a bit.
I was just wondering at what rpm range you guys shift at the track.

I still have the stock 5spd and stock slipping clutch. I don't know what I am going to trap today.
(My car is running on the 20G w/ external gate set up. )

I was thinking 1st till redline, 2nd and 3rd till about 6200's. My expectations w/ a slipping clutch w/out a launch, mid 13's at 106mph. What do you guys say?
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Old 09-26-2007, 11:18 AM   #2
GlobalWaste
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post your dyno plot and we'll tell you where to shift
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Old 09-26-2007, 11:21 AM   #3
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you'll have to launch high to keep from bogging +5.5k. Not sure of your exact setup but for my car making peak hp at redline(& still making good torque as well), I'd shift at redline in every gear.
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Old 09-26-2007, 11:28 AM   #4
WRX4eva
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Let me post my detuned dyno plot. I was thinking to launch at about 5k. I have successfully launched well on 5k till I've decided to launce a bit more aggressively (close to 6k) and burned my clutch from slipping it too much. ARGH>
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Old 09-26-2007, 11:33 AM   #5
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Here it is. 19psi

DB 20G port&polish + all heat coatings
tial 44mm EWG dumped externally
tial BOV
850 pe injectors
Walbro
93 oct tune
stock tranny/
stock clutch (Slipping)
Helix Downpipe
HKS cat-back
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Old 09-26-2007, 11:36 AM   #6
testes1010
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on 93octane you should be running 21-23psi depending on which intercooler you are running.
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Old 09-26-2007, 01:23 PM   #7
WRX4eva
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Perrin FMIC
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Old 09-26-2007, 01:54 PM   #8
Master2192
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Your horsepower stays pretty flat all the way till redline, could use some more boost though (I'd say no less than 23 psi with that FMIC and turbo). Don't shift until redline with the current tune. During drag racing the guy with the highest average horsepower wins
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Old 09-26-2007, 02:01 PM   #9
97subi
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ha good ****. i ran a 13.8 with stage 2. if you dont break anything tranny, blow your clutch,ect. i think you can do better then mid 13s. good luck...
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Old 09-26-2007, 02:13 PM   #10
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Quote:
Originally Posted by WRX4eva View Post

Here it is. 19psi

DB 20G port&polish + all heat coatings
tial 44mm EWG dumped externally
tial BOV
850 pe injectors
Walbro
93 oct tune
stock tranny/
stock clutch (Slipping)
Helix Downpipe
HKS cat-back

dude i would get that car checked out. look at the HUGE @$$ dip in the center of the RPM BAND. TIMING BEING PULLED!!!!! aka KNOCK!!!! not to mention look how choppy the whole thing is. get that thing checked out.
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Old 09-26-2007, 02:32 PM   #11
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I'm running stock tranny and clutch on my Greddy 18G w/ 2.5L and I shift at redline. Since I still have the stock drivetrain I just eased off but I was trapping 113-115 consistently!

I did try launching around 5k in 1 run but it was useless, clutch just slipped in 1st and 2nd
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Old 09-26-2007, 02:32 PM   #12
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Quote:
Originally Posted by SuperSTI View Post
dude i would get that car checked out. look at the HUGE @$$ dip in the center of the RPM BAND. TIMING BEING PULLED!!!!! aka KNOCK!!!! not to mention look how choppy the whole thing is. get that thing checked out.
I was thinking the samething
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Old 09-26-2007, 03:58 PM   #13
WRX4eva
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See~ I'm no expert in any kind of tuning. Basically you take the car to someone you think you can trust and have it tune. This is basically what happened to me. I don't know if timing is being pulled. I would expect my tuner to tell me this and say, hey listen this is what's going on w/ your ride.
I guess I got to talk to my tuner.
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Old 09-26-2007, 05:31 PM   #14
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Quote:
Originally Posted by WRX4eva View Post
See~ I'm no expert in any kind of tuning. Basically you take the car to someone you think you can trust and have it tune. This is basically what happened to me. I don't know if timing is being pulled. I would expect my tuner to tell me this and say, hey listen this is what's going on w/ your ride.
I guess I got to talk to my tuner.
I would talk to him. also those numbers seem really low for a dynojet. i did a million times better than that with my 18g. look for yourself.

here: http://forums.nasioc.com/forums/show...ght=automaster
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Old 09-26-2007, 05:36 PM   #15
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Quote:
Originally Posted by 97subi View Post
ha good ****. i ran a 13.8 with stage 2. if you dont break anything tranny, blow your clutch,ect. i think you can do better then mid 13s. good luck...

I ran a 13.27 @ 102 with a 2.0 60ft with the VF39 OTS map from cobb... you better be in mid 12's if u dont break a tranny first.

97subi... i see ur seeking a vf39... PM me.. I have your treasure. I'm now running an 18G and have no use for my 39 anymore

Last edited by rhinotech; 09-26-2007 at 05:51 PM. Reason: type0
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Old 09-26-2007, 06:10 PM   #16
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Quote:
Originally Posted by SuperSTI View Post
dude i would get that car checked out. look at the HUGE @$$ dip in the center of the RPM BAND. TIMING BEING PULLED!!!!! aka KNOCK!!!! not to mention look how choppy the whole thing is. get that thing checked out.
Its really not that choppy, look at the smoothness correction, its only set at 1. Most graphs you look at are set between 3 and 5. And the "dip" would not look so terrible had the smoothness been set higher. Did Junior tune your car? If so then I really wouldn't worry about it too much, he does great work.
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Old 09-26-2007, 06:15 PM   #17
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Quote:
Originally Posted by WRX4eva View Post
Hey guys,

I'm heading to ETown tonight, and was wondering if you guys can help me a bit.
I was just wondering at what rpm range you guys shift at the track.

I still have the stock 5spd and stock slipping clutch. I don't know what I am going to trap today.
(My car is running on the 20G w/ external gate set up. )

I was thinking 1st till redline, 2nd and 3rd till about 6200's. My expectations w/ a slipping clutch w/out a launch, mid 13's at 106mph. What do you guys say?
I did 12.7@107.89 with a VF22 shifting at redline at a slower track (NED) You should get higher traps than that.
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Old 09-26-2007, 06:34 PM   #18
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Quote:
Originally Posted by WRX Shenanigans View Post
Its really not that choppy, look at the smoothness correction, its only set at 1. Most graphs you look at are set between 3 and 5. And the "dip" would not look so terrible had the smoothness been set higher.
+1...
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Old 09-27-2007, 12:59 AM   #19
WRX4eva
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I ran like crap. My clutch couldn't handle the launch. Tried at lower RPMs and bogged and gave up on the run.
Second attempt launched, bogged, clutch slipped, ran a bad 60' trapped 102 w/ a 13.82.
I was shifting very slow, next week will try a different settings.
I'll try w/ higher RPM launches w/ fast shifting. I think I'll be at high 12's.

What bothers me the most is the previous tune done at "The Shop" my car came out w/ 347whp and 1 month later when I take my car to the Dynoday @ ICS it only ran 309whp.
I will take my car to the track again and see if I can improve my time. After that is done I'll talk to my tuner.
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Old 09-27-2007, 02:40 AM   #20
99subi
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that dyno sheet is alll farked up. those chops are REDICCCCCC!. timimg def was pulled at one point as you can see
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Old 09-27-2007, 08:36 AM   #21
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Quote:
Originally Posted by WRX Shenanigans View Post
Its really not that choppy, look at the smoothness correction, its only set at 1. Most graphs you look at are set between 3 and 5. And the "dip" would not look so terrible had the smoothness been set higher. Did Junior tune your car? If so then I really wouldn't worry about it too much, he does great work.
Normally I would agree with you but Ive been tuned on this dyno and with a smoothing of 0 my graph is flat. Go get your car checked out.

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Old 09-27-2007, 12:11 PM   #22
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Quote:
Originally Posted by WRX4eva View Post
What bothers me the most is the previous tune done at "The Shop" my car came out w/ 347whp and 1 month later when I take my car to the Dynoday @ ICS it only ran 309whp.
You cant compare dyno #'s from different dynos. I dyno'd 375whp at one place, then 205whp at another place less than two weeks later.
Quote:
Originally Posted by WRX4eva View Post
ran a bad 60' trapped 102 w/ a 13.82.
I'll try w/ higher RPM launches w/ fast shifting. I think I'll be at high 12's.
Thats funny. You seriously think you are gonna go out and run 1 second faster? You dont have the trap to run a high 12.

You will need to trap 104-106mph and hit at least a low 1.8 60' to get a 12.9.
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Old 09-27-2007, 04:30 PM   #23
WRX4eva
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We'll have to wait and see next week. My shifting was not the greatest. will practice my launch and will shift faster next time. Hope my clutch will last.

Last edited by WRX4eva; 09-27-2007 at 04:36 PM.
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Old 09-27-2007, 05:25 PM   #24
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Originally Posted by Phatron View Post
You cant compare dyno #'s from different dynos. I dyno'd 375whp at one place, then 205whp at another place less than two weeks later.

Thats funny. You seriously think you are gonna go out and run 1 second faster? You dont have the trap to run a high 12.

You will need to trap 104-106mph and hit at least a low 1.8 60' to get a 12.9.

First off "the shops" dyno is jacked up big time, especially back when AL was tuning there. so you werent making 375whp . Second, your trap speed is not gonna change because you are not making the power you believe you are. thats why you are confused. its not the shifting or the launching, its the tuning and the car.
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Old 09-27-2007, 06:04 PM   #25
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I do not understand why you are tracking the car when the clutch is slipping. Doesn't it just keep getting progressively worse over time, meaning that you cannot compare results?

FWIW, on my 18G setup I go to redline in 1st and 2nd. 6,750 in 3rd.
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