When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I’m trying to replicate a stock 2015 Silverado main relay and powertrain relay like the diagram pictured. It’s a 8L90 harness so I have two additional wires in the main relay fused circut. I’m a little confused about the powertrain relay. Two 12v sources and no ground?
My only input is to ensure you use a powertrain relay rated at the same as the factory. My 2014 harness relay is not a standard 30 amp relay like the others. I am thinking its a 50 amp relay. These systems draw a ton of amps running the injectors, coils and other solenoids; much more than a LSX based system.
My only input is to ensure you use a powertrain relay rated at the same as the factory. My 2014 harness relay is not a standard 30 amp relay like the others. I am thinking its a 50 amp relay. These systems draw a ton of amps running the injectors, coils and other solenoids; much more than a LSX based system.
it works the way I wired it. Good info on the relay, I didn’t really think about the amps of the relays. I have 4 relays that came with my Current Performance Wiring SA2000 fuse block so I’ll check to see what they are.
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.
7 Most Reliable High-Performance Engines GM Has Ever Built
Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.
Gen V Fuse block for stand alone harness 
