Why do people say the 5.3 Vortec is slow?

[RST Dana]

The other night I was next to some jelly bean shaped SUV at a light to get onto the highway. Light turned green and we began to move, the jelly bean SUV starts to get ahead as he is on the inside of the turn onto the ramp. I give her a little more gas and the transmission startled me when she shifted to 1st gear, lifted the front end up into the air and I mashed the throttle and passed that jelly bean SUV like he was sitting still. The truck was heading north of 80 before I knew it and eased off the gas upon entering the highway with the jelly bean SUV way back there somewhere in the distance.

Still stock with a BlackBear tune.

I have to ask. Who makes said jelly bean suv?

 

[swathdiver]

I have to ask. Who makes said jelly bean suv?

I was thinking of the Ford Edge but think the actual vehicle might have been a Mitsubishi but didn't pay it much mind.

 

[bottomline2000]

The other night I was next to some jelly bean shaped SUV at a light to get onto the highway. Light turned green and we began to move, the jelly bean SUV starts to get ahead as he is on the inside of the turn onto the ramp. I give her a little more gas and the transmission startled me when she shifted to 1st gear, lifted the front end up into the air and I mashed the throttle and passed that jelly bean SUV like he was sitting still. The truck was heading north of 80 before I knew it and eased off the gas upon entering the highway with the jelly bean SUV way back there somewhere in the distance.

Still stock with a BlackBear tune.

Yeah I've given a few new Ford trucks and Dodge trucks the blues with mine, but it's slightly modified with the 5.3s big brother. Nothing like a big rimmed, heavier truck walking out your life lol..once I throw some boost at it it's game over.

Sent from my SAMSUNG-SM-G900A using Tapatalk

 

[SnowDrifter]

Iunno. I've always felt the 5.3 is a bit of a slug. Fine for around town but it struggles on the freeway moving a 5500lb barn. Coming off a stop can be a bit rough too since first gear is so darn tall

 

[swathdiver]

Coming off a stop can be a bit rough too since first gear is so darn tall

4-Speed?

 

[BarryVanHook]

I have the 5.3 in my 06 Silverado, the wife's 13 Yukon, and our '49 Chevy fleet line. The slowest is the Yukon, but also the heaviest, and with a 3.08 gear, is to be expected. And my 49 will spank the ass of most 6.0's and 6.2's.

 

[SnowDrifter]

4-Speed?

Yeah

 

[swathdiver]

Yeah

It's nice having that 4.03 first gear in the six-speed. The 8 and 10-speeds are even steeper.

 

[BG1988]

I used to have a ‘05 Ram w/ the 5.7 hemi, so I assume it has similar “get up and go.” My point is, that I don’t think the 5.3 is a slouch like everyone says it is.

better then a v6 or I4 like the GMC terrain has...

I used my uncles silverado with v6 pickup it could not even go faster then 65MPH even with peddle to the FLOOR...
now with the v8 4.8 or 5.3 this is a non issue... (I had a silverado with a 4.8l before with 8 foot bed and a full 34 gallon tank(got GOOD mileage averaged 23MPG 100% HYW

(I cheated by drafting behind a 18wheeler)..

CITY MPG was 18) and used my grandpa 5.3l silverado ) that sucker barely got 5-11mpg in the city..

 

[BG1988]

In this instance, the LQ4 makes about 40 more horsepower than the LM7 in the Tahoe which weighs 500-600 pounds less. They are probably geared differently so it's not surprising that they would feel the same.

But if it had a 6.2 with 80+ more horsepower, you'd know it no matter the weight!

still gotta use premium fuel or E85

30% E85 and 70% 87octane will balance things out for MAX MPG and max POWER

this will be the cheapest way to fill it up and still have higher octane with MAX MPG