Slightly smaller S/C pulley didn't work for me

4x4Wire Trail Talk Forums: Jeep, Toyota, Mitsubishi, Pajero, Isuzu, Kia, 4WD, 4x4, SUV, Off-Road and OutdoorWire Forums

Print Thread

Rate Thread

Re: Slightly smaller S/C pulley didn't work for me [Re: BoostedInline6] #727244 05/31/06 01:45 PM

Joined: Apr 2000

Posts: 3,748

Chapel Hill, NC

Dandeman

Toyota Moderator

Quote

Make sure to keep it much richer than 14.7:1 under boost or you run the risk of melting the pistons on an extended high boost pull. Shoot for somewhere in the 11.8-12.3 range in open loop. The ECU will do everything it can to keep the A/F ratio at 14.7:1 in closed loop.

You say you were able to get the A/F ratio down to 12:1; did it still ping?

Sounds like good advice.. <img src="/forums/images/graemlins/kewl.gif" alt="" /> That agrees with everything I've been able to dig out of the documentation on OBDII system open loop/closed loop operation.

2000 4Runner,V6,Auto,31's, Sliders, Skids, On-Board Air, Air Shocks
Related Interests: Welding, Ham Radio, Road Tripping (Blue Highways), High End Video/Audio Systems

Entire Thread
Subject	Posted By	Posted
Slightly smaller S/C pulley didn't work for me	Jeff the marmot	05/26/06 06:19 PM
Re: Slightly smaller S/C pulley didn't work for me	TRDatVT	05/27/06 06:33 PM
Re: Slightly smaller S/C pulley didn't work for me	Jeff the marmot	05/29/06 04:50 AM
Re: Slightly smaller S/C pulley didn't work for me	BoostedInline6	05/30/06 08:45 PM
Re: Slightly smaller S/C pulley didn't work for me	Jeff the marmot	05/31/06 04:29 AM
Re: Slightly smaller S/C pulley didn't work for me	BoostedInline6	05/31/06 06:25 AM
Re: Slightly smaller S/C pulley didn't work for me	Dandeman	05/31/06 01:45 PM
Re: Slightly smaller S/C pulley didn't work for me	BoostedInline6	05/31/06 03:57 PM
Re: Slightly smaller S/C pulley didn't work for me	TRDatVT	06/01/06 02:17 AM
Re: Slightly smaller S/C pulley didn't work for me	Jeff the marmot	06/01/06 05:38 AM
Re: Slightly smaller S/C pulley didn't work for me	BoostedInline6	06/01/06 04:02 PM
Re: Slightly smaller S/C pulley didn't work for me	Dandeman	06/01/06 08:55 PM
Re: Slightly smaller S/C pulley didn't work for me	chuckles	06/04/06 07:39 AM
Re: Slightly smaller S/C pulley didn't work for me	TRDatVT	06/04/06 01:57 PM
Re: Slightly smaller S/C pulley didn't work for me	Jeff the marmot	05/31/06 01:54 PM
Re: Slightly smaller S/C pulley didn't work for me	CORunner93	05/29/06 09:15 PM

Moderated by 4x4Wire, Adam F, Dandeman, kewlynx

Hop To

4x4Wire Social: