Speed density
Thread Starter
Teching In
Joined: Jan 2006
Posts: 26
Likes: 0
From: Lansing, MI
Speed density I'm building an 84 S10 with a 5.3 AL block, 6.0 heads, Z06 cam, twin T3/T4 "57 trim" turbos, Vic Jr EFI, 4150 TB and carb hat. This will be a track truck, only street will be cruises and shows. I will also be using the factory harness and PCM and tuned with HPT. Is a speed density tune my best bet? Running twins will keep me to using the factory narrowband, and also means that i will likely have to use 2 WB's, yes? TIA.
FormerVendor
Joined: Dec 2001
Posts: 2,444
Likes: 2
From: WWW.SPEEDINC.COM
In my opinion, speed density is always the best option and the only correct option if your maf sensor is maxed out or close to being maxed out.
You can tune it off of 1 wideband. Install a bung in each downpipe so you can switch the WB and verify the air/fuel is the same on both banks.
You can tune it off of 1 wideband. Install a bung in each downpipe so you can switch the WB and verify the air/fuel is the same on both banks.
