Spark Advance

BrianX · 07-16-2002, 08:46 PM

I took an OBD2 test drive today to try and figure out of the noise from my Cobb intake is causing my timing to be retarded at high RPMS. Since I installed it, things flatten out after 5k.

Mods:

Brullen Headers/Catback
Cobb Intake
ProECM

What's the max spark advance I should expect to see? The most that was recorded at high loads was 29 degrees. It peaked at 40 degrees at lower RPMs.

That seems to support my theory. Can anyone add any more information?

* Registered users of the site do not see these ads.

Chav · 07-16-2002, 09:37 PM

Dude, if you could figure out even peices of the stock timing map, I would be soooo grateful! I'm trying to figure out a good timing map for my link, but I'm just shooting in the dark. If you could get the map and timing map I would be so happy. If you dont its ok I understand.

This would also help a lot of other people that are in my situation.

I dont think that any noise from your intake will cause timing to be pulled. You have to HAMMER on the knock sensor before it even picks up something. It is normal to have 40 degrees at cruise and up to 29 at WOT. You should check ur a/f with a wideband O2 or EGT to see how that is going.

-Chav

BrianX · 07-16-2002, 11:17 PM

I'll zip up the OBD2 capture I did, you should be able to get some stuff from that. The ProECM may have an impact on the data though. (that and I continually throw p0136, bank 1 sensor 2)

I think I hogged up an O2 sensor somewhere.

Chav · 07-16-2002, 11:28 PM

Sweet, Thank you man. E-mail is sbreddy@prodigy.net

-Chav

BrianX · 07-17-2002, 11:15 AM

You are N/A and have a link 2?

RaceCarRiot · 07-17-2002, 11:44 AM

yes, link makes a plug and play unit for the 2.5L -- teagues auto carries it. www.boxer4racing.com

Chav · 07-17-2002, 11:44 AM

Yeah, until the turbo kit gets here.

-Chav

07-16-2002, 08:46 PM	#1
BrianX Scooby Newbie Member#: 1923 Join Date: Jul 2000 Location: Lincoln University, PA, USA Vehicle: 2000 2.5RS BRP	Spark Advance I took an OBD2 test drive today to try and figure out of the noise from my Cobb intake is causing my timing to be retarded at high RPMS. Since I installed it, things flatten out after 5k. Mods: Brullen Headers/Catback Cobb Intake ProECM What's the max spark advance I should expect to see? The most that was recorded at high loads was 29 degrees. It peaked at 40 degrees at lower RPMs. That seems to support my theory. Can anyone add any more information? * Registered users of the site do not see these ads.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Spark Plug FAQ: Read if you want spark plug information!	Unabomber	Service & Maintenance	611	05-21-2013 08:35 AM
Tuning spark advance, methods.	Rx7TyreBurna	Open Source Reflashes	3	09-27-2009 12:43 PM
Per johnnytran's request...Dynamic Advance & Dynamic Advance Multiplier Explained	Christian.	Rocky Mountains Impreza Club Forum -- RMIC	121	10-01-2005 08:05 AM
Help! Sparks between distributor cap and spark plug wires!	Stickee	Normally Aspirated Powertrain	13	04-23-2003 11:23 AM
Spark Advance question.	macius	Factory 2.0L Turbo Powertrain	1	12-12-2001 10:26 PM

07-16-2002, 09:37 PM	#2
Chav Scooby Specialist Member#: 3269 Join Date: Dec 2000 Chapter/Region: SCIC Location: San Diego Vehicle: 2001 2.5RS Sedan STM RSTi	Dude, if you could figure out even peices of the stock timing map, I would be soooo grateful! I'm trying to figure out a good timing map for my link, but I'm just shooting in the dark. If you could get the map and timing map I would be so happy. If you dont its ok I understand. This would also help a lot of other people that are in my situation. I dont think that any noise from your intake will cause timing to be pulled. You have to HAMMER on the knock sensor before it even picks up something. It is normal to have 40 degrees at cruise and up to 29 at WOT. You should check ur a/f with a wideband O2 or EGT to see how that is going. -Chav

07-16-2002, 11:17 PM	#3
BrianX Scooby Newbie Member#: 1923 Join Date: Jul 2000 Location: Lincoln University, PA, USA Vehicle: 2000 2.5RS BRP	I'll zip up the OBD2 capture I did, you should be able to get some stuff from that. The ProECM may have an impact on the data though. (that and I continually throw p0136, bank 1 sensor 2) I think I hogged up an O2 sensor somewhere.

07-16-2002, 11:28 PM	#4
Chav Scooby Specialist Member#: 3269 Join Date: Dec 2000 Chapter/Region: SCIC Location: San Diego Vehicle: 2001 2.5RS Sedan STM RSTi	Sweet, Thank you man. E-mail is sbreddy@prodigy.net -Chav

07-17-2002, 11:15 AM	#5
BrianX Scooby Newbie Member#: 1923 Join Date: Jul 2000 Location: Lincoln University, PA, USA Vehicle: 2000 2.5RS BRP	You are N/A and have a link 2?

07-17-2002, 11:44 AM	#6
RaceCarRiot Scooby Specialist Member#: 6542 Join Date: May 2001 Chapter/Region: South East Vehicle: 1997 Ver IV silver	yes, link makes a plug and play unit for the 2.5L -- teagues auto carries it. www.boxer4racing.com