Engine response - Subaru Enthusiasts Car Club of the Sierras

Charlie · 2010-07-28, 01:15 PM

I'm not quite sure how to explain this but here is the best way I can think of to try and explain it. It's a 2002 wrx wagon and from the time that I bought it about four months ago. Within the last two weeks I'v noticed that their is a growing gap of time from when I give it gas to when I feel the engine respond. It's like I floor it the tach shoots up to where I expect it to go instantly and then nothing happens for about a second or two which seems to be alot more than time than when I bought it. Thanks for any tips their all appreciated.

sperry · 2010-07-28, 01:33 PM

Sounds like you're describing plain old turbo lag with an automatic transmission. Not sure why there might be a longer lag now though. Perhaps just the ECU responding to hot ambient temps? Maybe the car saw some knock on a bad tank of gas and the advance multiplier is down in part of the power band?

100_Percent_Juice · 2010-07-28, 02:15 PM

Quote:

Originally Posted by Charlie

I'v noticed that their is a growing gap of time from when I give it gas to when I feel the engine respond. It's like I floor it the tach shoots up to where I expect it to go instantly and then nothing happens for about a second or two which seems to be alot more than time than when I bought it. Thanks for any tips their all appreciated.

When you say "when I feel the engine respond", do you mean when the car starts to move forward from a stop?

Charlie · 2010-07-28, 05:16 PM

I'm not sure about how it does at a stop and then starting to move because I already need to replace the clutch. I was talking about like cruising down the highway at like three thousand rpm then give it more gas and it doesn't respond for a second or two. Thanks for all your guy's help.

WRX06TR · 2010-07-28, 05:18 PM

Definitely sounds like clutch if your tach is climbing and nothing is happening.

100_Percent_Juice · 2010-07-28, 08:39 PM

Quote:

Originally Posted by WRX06TR

Definitely sounds like clutch if your tach is climbing and nothing is happening.

Definitely.

swr999 · 2010-07-28, 08:41 PM

Manual transmission? Slipping clutch. You'll notice it more in higher gears. Replacing it is the fix.

sperry · 2010-07-28, 11:21 PM

Quote:

Originally Posted by WRX06TR

Definitely sounds like clutch if your tach is climbing and nothing is happening.

I just assumed it was an automatic.

100_Percent_Juice · 2010-07-29, 06:43 AM

Charlie. Is this what you are seeing?

YouTube

Charlie · 2010-07-29, 09:31 PM

Thats pretty much exactly it just not as bad. Thanks for all the help guys. In that case any suggestions on a good clutch for autocross? I didn't even think of looking for videos on you tube.

100_Percent_Juice · 2010-07-29, 09:44 PM

Exedy Stage 1 is a pretty awesome clutch IMO. If thats the way you decide to go, I can tell you from experience that you can get the best deal locally. Also, you can get it installed fast at KSpeed.

bigrobwoot · 2010-07-30, 04:48 AM

Where did you get it cheap locally? And how much was it?

Dean · 2010-07-30, 06:33 AM

Clutch may just be glazed... A couple good 3000 RPM slipping launches will either re-bed it or confirm the worn out clutch.

You have to get it warm enough to smell to bed it back in. No need to smoke it though.

100_Percent_Juice · 2010-07-30, 07:23 AM

Quote:

Originally Posted by bigrobwoot

Where did you get it cheap locally? And how much was it?

The cheapest place I found it online (at the time) was Gruppe-S. Then you have to figure in the cost of either getting a new LW flywheel or resurfacing the stock one. Reno Clutch and Brake quoted me a price when I came in that was very close to Gruppe-s. RC&B will also resurface your flywheel for free if you buy the clutch from them. This made the price almost identical if not a little cheaper than online.

bluestreak · 2010-07-30, 07:47 AM

I've had 2 of the Spec Stage 2 clutches and been very happy with them - the first one survived 45k+ miles with very aggressive driving and hundreds of high rpm launches. They are very streetable too. I will be getting a third when I need it.

http://www.jscspeed.com/catalog/Suba...ubaru_WRX.html

BTW, sorry if I jack the thread, but how much life are people getting out of their clutches? - Ive averaged about 45-50K out of mine

bigrobwoot · 2010-07-30, 08:16 AM

Quote:

Originally Posted by 100_Percent_Juice

The cheapest place I found it online (at the time) was Gruppe-S. Then you have to figure in the cost of either getting a new LW flywheel or resurfacing the stock one. Reno Clutch and Brake quoted me a price when I came in that was very close to Gruppe-s. RC&B will also resurface your flywheel for free if you buy the clutch from them. This made the price almost identical if not a little cheaper than online.

I got a LWFW when I got my last clutch. I'll keep that in mind when I need to replace my clutch again tho.

cody · 2010-07-30, 10:17 AM

Quote:

Originally Posted by 100_Percent_Juice

Exedy Stage 1 is a pretty awesome clutch IMO. If thats the way you decide to go, I can tell you from experience that you can get the best deal locally. Also, you can get it installed fast at KSpeed.

That's what I have and it seemed identicle to stock (I think it is the same as OEM actually). I'm going to try something a little bit more aggressive next time since sometimes on a launch it will keep slipping after I've completely taken my foot of the clutch. I need something that can handle the power of a stage 2 2.0L.

100_Percent_Juice · 2010-07-30, 11:18 AM

IIRC the disc material is the same but, the pressure plate is beefier.

M3n2c3 · 2010-07-30, 02:32 PM

Quote:

Originally Posted by bluestreak

BTW, sorry if I jack the thread, but how much life are people getting out of their clutches? - Ive averaged about 45-50K out of mine

61,000 + miles on my original stock clutch and still going

2010-07-28, 01:15 PM	#1
Charlie n00b Real Name: Charlie Join Date: Jul 2010 Location: Sacramento Posts: 7 Car: 2002, Subaru, WRX wagon Class: D stock	Engine response I'm not quite sure how to explain this but here is the best way I can think of to try and explain it. It's a 2002 wrx wagon and from the time that I bought it about four months ago. Within the last two weeks I'v noticed that their is a growing gap of time from when I give it gas to when I feel the engine respond. It's like I floor it the tach shoots up to where I expect it to go instantly and then nothing happens for about a second or two which seems to be alot more than time than when I bought it. Thanks for any tips their all appreciated.

2010-07-28, 01:33 PM	#2
sperry The Doink Real Name: Scott Join Date: Nov 2002 Location: Portland, OR Posts: 20,335 Car: '09 OBXT, '02 WRX, '96 Miata Class: PDX/TT-6 The way out is through	Sounds like you're describing plain old turbo lag with an automatic transmission. Not sure why there might be a longer lag now though. Perhaps just the ECU responding to hot ambient temps? Maybe the car saw some knock on a bad tank of gas and the advance multiplier is down in part of the power band? __________________ Is you is, or is you ain't, my con-stit-u-ints?

2010-07-29, 09:44 PM	#11
100_Percent_Juice (40 percent vodka) Real Name: Joel Join Date: Oct 2006 Location: Reno, NV Posts: 4,446 Car: 2004WRX Class: Baby-Hauler/GroceryGetter	Exedy Stage 1 is a pretty awesome clutch IMO. If thats the way you decide to go, I can tell you from experience that you can get the best deal locally. Also, you can get it installed fast at KSpeed. __________________ "A power nap is when you sleep on someone who is weaker than you." - Dimitri Martin

2010-07-30, 06:33 AM	#13
Dean Señor Cheap Bastarde Real Name: Dean Join Date: May 2003 Location: $99 Tire Store Posts: 9,294 Car: $.04 STI Class: Fast,Cheap & Reliable=STI Deal, did somebody say Deal? Oh, Dean, yeah that's me.	Clutch may just be glazed... A couple good 3000 RPM slipping launches will either re-bed it or confirm the worn out clutch. You have to get it warm enough to smell to bed it back in. No need to smoke it though. __________________ I am a Commodore PET --- Now get off my lawn you kids...

2010-07-30, 11:18 AM	#18
100_Percent_Juice (40 percent vodka) Real Name: Joel Join Date: Oct 2006 Location: Reno, NV Posts: 4,446 Car: 2004WRX Class: Baby-Hauler/GroceryGetter	IIRC the disc material is the same but, the pressure plate is beefier. __________________ "A power nap is when you sleep on someone who is weaker than you." - Dimitri Martin

2010-07-28, 05:16 PM	#4
Charlie n00b Real Name: Charlie Join Date: Jul 2010 Location: Sacramento Posts: 7 Car: 2002, Subaru, WRX wagon Class: D stock	I'm not sure about how it does at a stop and then starting to move because I already need to replace the clutch. I was talking about like cruising down the highway at like three thousand rpm then give it more gas and it doesn't respond for a second or two. Thanks for all your guy's help.

2010-07-28, 05:18 PM	#5
WRX06TR EJ251 Real Name: Nick P Join Date: Dec 2006 Location: Reno Posts: 881 Car: 2005 STi Class: MadtyteTunerBro! Back to the studio!	Definitely sounds like clutch if your tach is climbing and nothing is happening.

2010-07-28, 08:41 PM	#7
swr999 n00b Real Name: Steve Join Date: Jul 2009 Location: San Diego Posts: 14 Car: 2005 Subaru WRX/STi Class: IPtBy If it's worth doing... it's worth doing badly.	Manual transmission? Slipping clutch. You'll notice it more in higher gears. Replacing it is the fix.

2010-07-29, 09:31 PM	#10
Charlie n00b Real Name: Charlie Join Date: Jul 2010 Location: Sacramento Posts: 7 Car: 2002, Subaru, WRX wagon Class: D stock	Thats pretty much exactly it just not as bad. Thanks for all the help guys. In that case any suggestions on a good clutch for autocross? I didn't even think of looking for videos on you tube.

2010-07-30, 04:48 AM	#12
bigrobwoot EJ251 Real Name: Rob Join Date: Jun 2008 Location: Reno Posts: 679 Car: 2019 CBS WRX Premium Class: Middle Shoot for the moon, because even if you miss, you'll still be among the stars	Where did you get it cheap locally? And how much was it?

2010-07-30, 07:47 AM	#15
bluestreak EJ22 Join Date: Feb 2009 Location: NW Reno Posts: 111 Car: 2003 WRX Sedan - Blue	I've had 2 of the Spec Stage 2 clutches and been very happy with them - the first one survived 45k+ miles with very aggressive driving and hundreds of high rpm launches. They are very streetable too. I will be getting a third when I need it. http://www.jscspeed.com/catalog/Suba...ubaru_WRX.html BTW, sorry if I jack the thread, but how much life are people getting out of their clutches? - Ive averaged about 45-50K out of mine

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