Launch help - TriStateTuners.com :: Home of Tristate Auto Enthusiast

koho2731 · 10-12-2006, 01:35 PM

Here is the best video from the track a few weeks back. I'm not sure what to do to improve I got a 1.875 and 1.876 on the two runs I made that night. I was 2 stepping at 5500 w/ tire pressure @ 20psi in all 4. Any ideas? I'm still new to the AWD thing this was my 3rd time to the track with the Talon.

teh DIRT · 10-12-2006, 01:36 PM

did that say 18.xx

koho2731 · 10-12-2006, 01:38 PM

Yea I blew an IC pipe off just before the 330' mark. It was a bad night at the track

teh DIRT · 10-12-2006, 01:39 PM

ouch, so whats the problem with your launch...bog or spin?

koho2731 · 10-12-2006, 01:41 PM

I spun through 2nd. I guess I should add I'm still running street tires 235/45/17 Falken ST115

Loserkidwac · 10-12-2006, 01:47 PM

I don't know, I don't have experience with awd but if you are spinning I'd launch at a lower rpm on street tires

koho2731 · 10-12-2006, 01:59 PM

The problem with lowering my launch rpm I can only spool to 11psi and it falls on it's face off the line no matter how long I slip the clutch. I'm starting to think I'm waisting my time going to Cecil on fridays. I hook up better on the street

Buster · 10-12-2006, 02:11 PM

Is that you hitting your rev limiter on the line. Instead of holding an RPM try blipping the throttle until you launch. I dont know if that works in a DSM but thats how I launch my WRX and im sure plenty will agree it works.

TalonTsi97 · 10-12-2006, 02:16 PM

I heard from a few people that they launch better not using the 2 step. My guess is to try it, maybe it will work for you. Do you have dsmlink?

koho2731 · 10-12-2006, 02:19 PM

Quote:

Originally Posted by Buster

Is that you hitting your rev limiter on the line. Instead of holding an RPM try blipping the throttle until you launch. I dont know if that works in a DSM but thats how I launch my WRX and im sure plenty will agree it works.

it's a 2 step

Quote:

Originally Posted by TalonTsi97

I heard from a few people that they launch better not using the 2 step. My guess is to try it, maybe it will work for you. Do you have dsmlink?

No I have a key driver chip so I can't turn it off

Loserkidwac · 10-12-2006, 02:21 PM

Just my opinion but i think you 17" wheel are what are kill your launch...i could be wrong but I'd say it is taking more effort to get those suckers to start moving and if you had a smaller wheel yo would be able to launch a little lower in the rpms and ideally grip better...or you just get some slicks and you would be able to launch higher...

TrboChicsRock · 10-12-2006, 02:30 PM

If the car falls on it's face when you're launching then it's bogging. You'll have to launch at a higher RPM to stop it from doing that. I have to launch at 5750 when I'm at the track.

koho2731 · 10-12-2006, 02:42 PM

Quote:

Originally Posted by TrboChicsRock

If the car falls on it's face when you're launching then it's bogging. You'll have to launch at a higher RPM to stop it from doing that. I have to launch at 5750 when I'm at the track.

The car bogges when I launch below 5500 an spins at 5500. That is why I dropped tire pressure to 20 psi. You think itcould just have been a tire temp problem? I sat for well over an 1 1/2 hrs between passes. I did drive around the water box and I didn't do any form of a burn out.

koho2731 · 10-12-2006, 02:48 PM

Quote:

Originally Posted by Loserkidwac

Just my opinion but i think you 17" wheel are what are kill your launch...i could be wrong but I'd say it is taking more effort to get those suckers to start moving and if you had a smaller wheel yo would be able to launch a little lower in the rpms and ideally grip better...or you just get some slicks and you would be able to launch higher...

the tire diamiter of my stock 16 to my 17 is allmost identical (25.3110/25.3267"), but they are also 2" wider rims

Brazen06 · 10-12-2006, 02:59 PM

Quote:

Originally Posted by koho2731

the tire diamiter of my stock 16 to my 17 is allmost identical (25.3110/25.3267"), but they are also 2" wider rims

it wasnt the overall hight of the tire he was concerned about...the fact that the 17's weight more it take more effort to get them spining (not to mention the fact that the smaller sidewall doesnt allow as much flex, therefore not as much traction.) try the ATCO mod...atco usually has awesome track prep but be warned your probably wont spin and are just gonna kill your clutch

koho2731 · 10-12-2006, 03:15 PM

Quote:

Originally Posted by Brazen06

it wasnt the overall hight of the tire he was concerned about...the fact that the 17's weight more it take more effort to get them spining (not to mention the fact that the smaller sidewall doesnt allow as much flex, therefore not as much traction.) try the ATCO mod...atco usually has awesome track prep but be warned your probably wont spin and are just gonna kill your clutch

the 17's weights 42lbs with the stock rims weights 44.5lbs with the tires mounted. but the side walls are way stiffer on the 17. I didn't think of the side wall flex for launching

zerioustt · 10-12-2006, 03:25 PM

even if his rims weighed less he still is gonna spin. i could see if you were bogging no matter what your rpm was..then id say bump up the tire pressure(im gona be questioned about that...lol. bring it). hes obviously making to much power for those tires. like brazen said you need something with a little more bite to them...a wider tire or drag radial. also the time sitting might be a factor also.

ej20wrx123 · 10-12-2006, 03:30 PM

Quote:

Originally Posted by koho2731

it's a 2 step

No I have a key driver chip so I can't turn it off

You cant turn it off but you can disconnted it. I read that people dont get good results with lowering tire pressure and street tires for awd. I would put your tires at 30psi and try again without 2-step

zerioustt · 10-12-2006, 03:32 PM

Quote:

Originally Posted by ej20wrx123

I read that people dont get good results with lowering tire pressure and street tires for awd. I would put your tires at 30psi and try again without 2-step

i would usually agree but he said hes spinning...wouldnt that mean hes making too much power?

ej20wrx123 · 10-12-2006, 03:40 PM

NO. Lower tire pressure helps if the tires are made for it....like drag rad. I dont think street tires like such low pressure, but theres only one way to find out.

10-12-2006, 01:35 PM	#1
koho2731 Tri-State Addict Join Date: Oct 2005 Location: Dover, DE Member #997 My Ride: 95 Eagle Talon TSi AWD iTrader: (1)	Launch help Here is the best video from the track a few weeks back. I'm not sure what to do to improve I got a 1.875 and 1.876 on the two runs I made that night. I was 2 stepping at 5500 w/ tire pressure @ 20psi in all 4. Any ideas? I'm still new to the AWD thing this was my 3rd time to the track with the Talon.

10-12-2006, 01:47 PM	#6
Loserkidwac Tri-State Addict Join Date: Sep 2006 Location: SE PA Member #2550 My Ride: 1992 Mazda Miata, 1991 Honda CRX Si LS-T, 95 Civic VX iTrader: (3)	I don't know, I don't have experience with awd but if you are spinning I'd launch at a lower rpm on street tires __________________ MoHawks are Cool To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

10-12-2006, 02:11 PM	#8
Buster TST Ruined My Life! Join Date: May 2005 Location: Holland Pa Member #449 My Ride: 2008 Mustang GT/CS iTrader: (3)	Is that you hitting your rev limiter on the line. Instead of holding an RPM try blipping the throttle until you launch. I dont know if that works in a DSM but thats how I launch my WRX and im sure plenty will agree it works. __________________ III To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

10-12-2006, 02:16 PM	#9
TalonTsi97 TST Ruined My Life! Join Date: Jan 2005 Member #136 My Ride: 1997 Eagle Talon iTrader: (21)	I heard from a few people that they launch better not using the 2 step. My guess is to try it, maybe it will work for you. Do you have dsmlink? __________________ 1997 Eagle Talon Tsi To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. Updated weekly with Dyno, Track, AutoX, Street, and Event videos. Big updates coming soon! To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

10-12-2006, 02:21 PM	#11
Loserkidwac Tri-State Addict Join Date: Sep 2006 Location: SE PA Member #2550 My Ride: 1992 Mazda Miata, 1991 Honda CRX Si LS-T, 95 Civic VX iTrader: (3)	Just my opinion but i think you 17" wheel are what are kill your launch...i could be wrong but I'd say it is taking more effort to get those suckers to start moving and if you had a smaller wheel yo would be able to launch a little lower in the rpms and ideally grip better...or you just get some slicks and you would be able to launch higher... __________________ MoHawks are Cool To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

10-12-2006, 01:38 PM	#3
koho2731 Tri-State Addict Join Date: Oct 2005 Location: Dover, DE Member #997 My Ride: 95 Eagle Talon TSi AWD iTrader: (1)	Yea I blew an IC pipe off just before the 330' mark. It was a bad night at the track

10-12-2006, 01:41 PM	#5
koho2731 Tri-State Addict Join Date: Oct 2005 Location: Dover, DE Member #997 My Ride: 95 Eagle Talon TSi AWD iTrader: (1)	I spun through 2nd. I guess I should add I'm still running street tires 235/45/17 Falken ST115

10-12-2006, 01:59 PM	#7
koho2731 Tri-State Addict Join Date: Oct 2005 Location: Dover, DE Member #997 My Ride: 95 Eagle Talon TSi AWD iTrader: (1)	The problem with lowering my launch rpm I can only spool to 11psi and it falls on it's face off the line no matter how long I slip the clutch. I'm starting to think I'm waisting my time going to Cecil on fridays. I hook up better on the street

10-12-2006, 02:30 PM	#12
TrboChicsRock Tri-State Post Whore Join Date: Feb 2005 Location: Pennsylvania Member #152 My Ride: 1998 Eclipse GSX, 2012 WRX Premium iTrader: (1)	If the car falls on it's face when you're launching then it's bogging. You'll have to launch at a higher RPM to stop it from doing that. I have to launch at 5750 when I'm at the track. __________________ - Jessica 1998 Eclipse GSX 11.2 @ 126 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

10-12-2006, 03:40 PM	#20
ej20wrx123 Tri-State Addict Join Date: Jun 2005 Location: South south NJ Member #523 My Ride: 2000 RSTI ej207 TS 2.5XTR iTrader: (0)	NO. Lower tire pressure helps if the tires are made for it....like drag rad. I dont think street tires like such low pressure, but theres only one way to find out. __________________ 00 RS w/ EJ207 & Dom2.5XTR twin scroll 91 MR-2 Gen3 swap w/ SC61 SOLD 06 STI 320whp/375wtq SOLD GVR4 381/2000 SOLD 02 330whp wrx SOLD

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