Well I've had my 2015 Silverado with the 4.3 since January and I think with tuning alone I've hit my best times. Yesterday was some great air minus a 10-20mph head wind. I think with a little more tweaking and no wind I could see a 15.00 but that will have to wait till the spring. I think I have made great progress with just a tune to show how much potential this new 4.3 has. I am curious to see what other guys with the 4.3 are running. If you have times for your 4.3 or even the DI 5.3 as well I would love to see them.

Below is the Stock time slip vs Tuned time slip.

 

Thats.....actually pretty good.

 

Is that for the extended cab in your avatar?? Wow im impressed.

 

Yes it is. That time is with full street weight, 1/4 tank of e85, 3.42 gears, 265/70/17R A/T tires, and 5500lbs with me in it.

 

stout little 4.3. spray the house down!

 

Man that 4.3 is strong! And an EC to boot...love it!

 

Someone needs to go after a 4.3 record. Surely one has seen 12's by now. The problem is if you pop it, a 4.8 is probably cheaper.

a rcsb xtreem would be an awesome starting platform. Forged pistons and rods with nitrous and turbo.

**** i miss my s10. I thought a 69 camaro was one of my dream cars, and im missing the s10 that had to go to fit the fbody in the garage...

Im truely a truck guy at heart.

 

Wikipedia tells me it's an 11:1 aluminum block direct injected motor putting out 297/330 on E85. That's more than the 4.8 when it first came out.

 

Nice times! My tune only crew cab 5.3 went 14.52 @ 95 spinning. Had 93 in it but gonna fill it up with E85 next trip to the track. Then next mod will be Texas Speed LTs.

 

i'm even more impresssed with your 60'. My Double Cab just ran 15.7 bone stock this past weekend with 87 in it at 92mph. It 60' a 2.7 haha. I ran it with the TC on and when I took the TC off it smoked the tires roughly 30 feet out. It was only 40 degrees out, but I didn't want to tear the tires apart as this is my DD.

I'm assuming the times you ran are with the intake, exhaust and tune? Nice times man. Once I hit 50,000 miles on mine I think I will have it tuned. Also, my truck came with the factory 20" wheels. That might have hurt traction a little, but oh well. My truck came without the E-85 option, anyone know how hard it is to convert? It's only $150 option for the 2015's but they had the truck on the lot and I needed a car.

Great times out of the 6 banger, time for some turbo 6's running around!