2 step on fuel injected cars

art leong · 12-27-2009, 02:14 PM

My ECU is a ViPec. I use LS1 coils so the only standalone 2 step I could get was from Lingenfelter The 2 step held the rpm it was set for. But the motor was over fueling.
I run open loop all the time. I don't run a long collector so the wideband is not to accurate at lower rpms.
The car has been setup on a chassis dyno using the quick tune setup in the ECU
I used a fast ECU and msd dis2. and you didn't have to worry about what to dial in. You had to worry about whether the car would start. The ViPec is a pleasure to use it starts the car with ease even in cold weather, idles great at low rpms and I don't even have the idle speed control hooked up.

12-27-2009, 02:14 PM	#13
art leong VIP Member Join Date: Dec 2001 Location: Richmond Hill, Georgia Posts: 2,003 Likes: 0 Liked 1 Time in 1 Post	Re: 2 step on fuel injected cars My ECU is a ViPec. I use LS1 coils so the only standalone 2 step I could get was from Lingenfelter The 2 step held the rpm it was set for. But the motor was over fueling. I run open loop all the time. I don't run a long collector so the wideband is not to accurate at lower rpms. The car has been setup on a chassis dyno using the quick tune setup in the ECU I used a fast ECU and msd dis2. and you didn't have to worry about what to dial in. You had to worry about whether the car would start. The ViPec is a pleasure to use it starts the car with ease even in cold weather, idles great at low rpms and I don't even have the idle speed control hooked up. __________________ Art Leong 2095 SS