Spark Plugs with Two-Step

Ed Wright · 02-03-2017, 09:01 PM

Darren, I had muffler shop next door to me make the extension. It was 24" long, with a 45 degree bend at 12". Swedged to slip over my collector. I made 2 band saw cuts, and clamped it on. Had to put it on at the track. Would not go in the trailer with it in place. I run one wideband in the collector. I race it going into closed loop at 6000. The funky air/fuel numbers from the 2 step are gone by then. I have worked on the intake air temp correction table so even in different temps it seldom ever shows more than 2% fuel corrections on the logger. I would not now run one without the air temp sensor. Helps a good bit with consistency. At first I just zip tied the sensor to a fuel rail, then pulled my head out, and screwed it into one of the bungs in the back of my Hogan plenum. The car is deadly consistent. It could use a better driver. LOL

Darrel Goheen · 02-03-2017, 09:15 PM

Quote:

Originally Posted by Ed Wright

Darren, I had muffler shop next door to me make the extension. It was 24" long, with a 45 degree bend at 12". Swedged to slip over my collector. I made 2 band saw cuts, and clamped it on. Had to put it on at the track. Would not go in the trailer with it in place. I run one wideband in the collector. I race it going into closed loop at 6000. The funky air/fuel numbers from the 2 step are gone by then. I have worked on the intake air temp correction table so even in different temps it seldom ever shows more than 2% fuel corrections on the logger. I would not now run one without the air temp sensor. Helps a good bit with consistency. At first I just zip tied the sensor to a fuel rail, then pulled my head out, and screwed it into one of the bungs in the back of my Hogan plenum. The car is deadly consistent. It could use a better driver. LOL

Thanks Ed. What engine do you have in your Firebird? I have not ran my Firebird (LS1) yet but it didn't have an air temp sensor when I got it. I've since put one on it but then thought later that was probably as waste of money. I still have a lot to learn. It's the one that has the O2 sensor in a primary tube. I look forward to visiting with you. I don't believe we've met yet. If we have sorry I don't remember.

Ed Wright · 02-06-2017, 06:21 PM

Mine is an LT1. I don't remember meeting either, but I'm very old. You will see. LOL

02-03-2017, 09:01 PM	#1
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Spark Plugs with Two-Step Darren, I had muffler shop next door to me make the extension. It was 24" long, with a 45 degree bend at 12". Swedged to slip over my collector. I made 2 band saw cuts, and clamped it on. Had to put it on at the track. Would not go in the trailer with it in place. I run one wideband in the collector. I race it going into closed loop at 6000. The funky air/fuel numbers from the 2 step are gone by then. I have worked on the intake air temp correction table so even in different temps it seldom ever shows more than 2% fuel corrections on the logger. I would not now run one without the air temp sensor. Helps a good bit with consistency. At first I just zip tied the sensor to a fuel rail, then pulled my head out, and screwed it into one of the bungs in the back of my Hogan plenum. The car is deadly consistent. It could use a better driver. LOL __________________ Ed Wright 4156 SS/JA

02-06-2017, 06:21 PM	#3
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Spark Plugs with Two-Step Mine is an LT1. I don't remember meeting either, but I'm very old. You will see. LOL __________________ Ed Wright 4156 SS/JA