LS6 Cobra
Thread Starter
TECH Apprentice
Joined: Jan 2002
Posts: 366
Likes: 0
From: Gilbert, AZ
Car pulls good. Shifts good. Right now it is shifting between 6000-6100. Maybe bump that up since the ls6 redlines higher than an ls1. No knock or anything strange. Fuel trims are +5-7% so could use a bit of tuning but not bad. It did spit the belt off on a pull so that needs to be fixed. Overall it runs strong. I would say it is a solid high 11/low 12 car at this elevation.
Assuming you're running factory LS6 software, the +5% to 7% fuel trims are very likely resulting from your induction tract being different from the Vette pieces.
It doesn't take much change in the tract to throw off the MAF sensor calibration, but it's an easy table to tweak.
It doesn't take much change in the tract to throw off the MAF sensor calibration, but it's an easy table to tweak.
On The Tree
Joined: Feb 2002
Posts: 188
Likes: 0
From: Chicagoland
Staging Lane
Joined: Oct 2007
Posts: 74
Likes: 1
From: Sweden
Cool to see another LS powered Cobra 
I'm just in the finishing stage of my own Cobra project. I have an LS7 crate in there and the car has a Corvette C4 ZR1 front and rear end converted to coilovers, frame is custom made and the body is from DAX in the UK. I have a Tremec TKO600RR gearbox and a Dana44 rear axel coupled to the LS7. Just started the engine for the first time last weekend and I hope to be able to go for the first test drive in a week or so 
Don't have many pictures at hand right now, sorry about that.
I'm just in the finishing stage of my own Cobra project. I have an LS7 crate in there and the car has a Corvette C4 ZR1 front and rear end converted to coilovers, frame is custom made and the body is from DAX in the UK. I have a Tremec TKO600RR gearbox and a Dana44 rear axel coupled to the LS7. Just started the engine for the first time last weekend and I hope to be able to go for the first test drive in a week or so Don't have many pictures at hand right now, sorry about that. 
