Welcome to the North American Subaru Impreza Owners Club Wednesday October 22, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Archives > NASIOC Archives > Technical Forum Archive

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
 
 
Thread Tools Display Modes
Old 09-04-2000, 11:35 AM   #1
horseflesh
Scooby Newbie
 
Member#: 690
Join Date: Dec 1999
Chapter/Region: NWIC
Location: Kirkland, WA, USA
Vehicle:
2000 Impreza RS 4 dr
Rallye blue!

Post MY00 bogs at launch (sorry for the dead horse beating!)


(Let me preface this by saying it COULD be operator error, I guess -- but it sure FEELS wrong... Also, the car is bone stock, and I run 87 gas.)

Anyway -- my MY00 RS bogs when when I engage 1st gear. For about a second the power will smoothly engage, and then my power and RPMs drop. This happens below about 2000 RPMs. (I have to take precise notes next time I drive.)

I can counter this by revving higher prior to disengaging the clutch, but I shouldn't *have* to start the car at 2500RPMs, right?

If I give it more gas when the power drop starts, I can partially compensate, but I have to put my foot WAY into it. The power and RPMs will then surge after about 1-2 seconds in the low-power zone.

The problem is noticeable, though MUCH diminished in 2nd gear.

I have read about other people with this problem. They have listed these things as helping:

NGK platinums
Bosch platinums
Aftermarket air filter/intake
High-octane gas

Anyone here have any experience with this? I am extremely reluctant to take the car to a dealer until I know more about what is going on... Is this my knock sensor? Or something else? Will resetting the ECU clear this up temporarily?
horseflesh is offline  
Old 09-04-2000, 11:59 AM   #2
SkinMask
Scooby Newbie
 
Member#: 1801
Join Date: Jul 2000
Location: Akron, OH
Vehicle:
2000 2.5RS
Blue

Post

yeah, same thing happens to me, but I'm pretty positive it bogs a bit right as the clutch and engine equal out, so I just try to run the clutch a bit more if I am launching fast, or right as you feel is dying, push the clutch in a tad more and it will be fine.

-Jeff (SkinMask)
SkinMask is offline  
Old 09-05-2000, 12:04 AM   #3
horseflesh
Scooby Newbie
 
Member#: 690
Join Date: Dec 1999
Chapter/Region: NWIC
Location: Kirkland, WA, USA
Vehicle:
2000 Impreza RS 4 dr
Rallye blue!

Post


Thanks for the data point.

A friend at work has an identical RS, I will have to take it for a spin and see how it feels as well.
horseflesh is offline  
Old 09-05-2000, 12:19 AM   #4
chrisww2
Scooby Newbie
 
Member#: 2144
Join Date: Aug 2000
Location: Raleigh NC
Vehicle:
2006 B9 Tribeca
Black

Post

I have the MY00 and had the same hesitation problems at launch. According to Trey at Cobb tuning the 2000 year models react differently to the type of gasilone you put in the car vs other years. This is really the case with any car. I was running 87 and switched to 93. The hesitation is gone now that I am using a different grade of gas. I have also got the K&N panel filter and the underdrive pulley and the performance exhaust from Subaru on that car as well. the problems are no longer there. Runs like a champ! Hope this helps!

-Chris
chrisww2 is offline  
Old 09-05-2000, 12:56 AM   #5
horseflesh
Scooby Newbie
 
Member#: 690
Join Date: Dec 1999
Chapter/Region: NWIC
Location: Kirkland, WA, USA
Vehicle:
2000 Impreza RS 4 dr
Rallye blue!

Post


After you switched gas grades, did you reset the ECU?
horseflesh is offline  
Old 09-04-2000, 01:12 PM   #6
munkis
Scooby Guru
 
Member#: 1847
Join Date: Jul 2000
Chapter/Region: Tri-State
Location: brokenmotorsports.com
Vehicle:
Team Broken: V6 GF
rallyarmor.com

Post

Ummmm, dont think changing your gas grade has anything to do with the bogging, its clearly relevent driver input.

The bogging is from not giving it enough gas as related to you rpms or vice versa, giving it gas but letting the clutch out to fast, youll just half to practice finding the correct amount of gas and how fast to let the clutch out.

The clutch is very sensitive and you have to let it out very slow and smooth.

Slow and smooth is the key with the gas and clutch. Once you master that you should have no problem, then you can move onto qwick and smooth! good luck, I had the same probem when I first got the car.

Practice practice practice

Jay McDade
MY00 BRP RS coupe
munkis is offline  
Old 09-04-2000, 02:18 PM   #7
chrisww2
Scooby Newbie
 
Member#: 2144
Join Date: Aug 2000
Location: Raleigh NC
Vehicle:
2006 B9 Tribeca
Black

Post

No, I didn't reset the ECU after changing grades of gas. I think what McDade hit the nail on the head.
chrisww2 is offline  
Old 09-04-2000, 03:06 PM   #8
8Complex

Moderator
 
Member#: 922
Join Date: Feb 2000
Chapter/Region: MWSOC
Location: Schaumburg, IL
Vehicle:
04 FXT
Red

Post

I drop the clutch about 4250 rpm's and barely ever get a bog. I do get them if I'm much higher or lower then that though. I think what is it is that is a good RPM to launch, sping the tires a little, and then hook at about the same RPM when you get going.
8Complex is offline  
Old 09-04-2000, 09:08 PM   #9
Sunrise City Rider
Scooby Specialist
 
Member#: 1503
Join Date: May 2000
Chapter/Region: South East
Location: Sunrise, FL, USA
Vehicle:
2000 Impreza W"RS"X
Blue Ridge Pearl

Post

Anything higher than 3 grand and you will not get a clean launch, unless you have power to break the wheels loose. N/A need to let the clutch out fast without dropping it, then power shift 1st to 2nd to 3rd to get a the most out of the engine. You have to know your RS to it right. All wheel drive is completely different than FWD or RWD. But, a turbocharged street RS will most likely cover more ground in a shorter time than a turbocharged GSR, because of less slippage.
Sunrise City Rider is offline  
 

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
VF34 on my 07 WRX - yes I am beating the dead horse. snowflowmfg Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 14 03-25-2010 12:21 AM
sorry to beat the dead horse bartx Normally Aspirated Powertrain 17 12-27-2004 06:57 PM
CARTER is the worst! All of you please read...sorry for the long complaint CJK North West Impreza Club Forum -- NWIC 38 07-30-2003 04:00 AM
sorry to keep beating the dead horse! Lordhowe Newbies & FAQs 8 05-02-2003 09:54 PM
Dead horse beating avonrex Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 6 11-05-2001 08:36 AM


All times are GMT -4. The time now is 08:18 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.