96 on 35's lacks power.. need help

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michael hurd

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You sound like one of those guys who think there's nothing wrong with GMT400 brakes too. I made up the big 3 just like the other guy who did it for electrical, big deal. I'll blow it up to the big 4 now, the 4 most impactful mods I did for power. 1: tune. 2: gears. 3 & 4: up in the air between exhaust and the TB lip removal. I admit it won't do much for a 5 speed, kinda forgot about that, but for an automatic it makes a very noticeable difference in OD holding ability. I'll also admit it does nothing for WOT operation, that's not why I deleted that lip. It also made throttle response night and day better. If you think it feels like an on/off switch, learn to feather the gas. I don't like a truck that downshifts for every little thing. Obviously you do, keep your throttle blade stock then but quit spreading misinformation.



I have searched for 60-0 stopping distances by a reputable source.

The closest thing I have found would be this chart by Michigan state, for potential patrol vehicles. 5th wheel measurement of speed is used on all of the vehicles in the chart.

https://www.justnet.org/pdf/93468.pdf

60-0 average deceleration on a 1998 Chevrolet Tahoe 2wd is listed as 173.7 feet.

Curb weight is 4828# without a driver from my research.

Here is a test on 2015 pickups. Not sure on the reliability of the site.

http://special-reports.pickuptrucks.com/2015/01/2015-light-duty-v-8-challenge-braking.html
60-0 of 2015 Chevrolet 1500 with 20" Goodyear Wrangler SRA was 133.7 feet.

60-0 of 2015 Toyota's big, bad TRD PRO..... 159.6 feet. Whoa... beating a 20 year old truck by a whopping 14 feet... impressive. NOT.

No mention of curb weight on said vehicles.


Edmunds:

http://www.edmunds.com/chevrolet/silverado-1500/2015/crew-cab/rating/
"Stopping distance from 60 mph was average at 136 ft."

With an average of 40 feet shorter stopping distance in two decades, what is so significantly WRONG about a proper, working brake system on the GMT 400 and other derivative models?

Yes, they won't take repeated 60-0 stops without significant fade. That is a caveat of rear drum braking systems.

The OEM's have had two decades and hundreds of thousands of man hours to dedicate to friction compound blends, rotor and vane design with CFT software, wheel design, much better rubber compounds in the tires, larger tire contact patches, better ABS systems and so on.



Supercharged 111, do you have any OBJECTIVE data on braking to share rather than subjective?
 

michael hurd

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1997 2wd Tahoe, again in Michigan State patrol vehicle testing.

https://www.justnet.org/pdf/michigan.pdf

60-0 stopping distance is 161.4 feet average.


https://www.justnet.org/pdf/2016-Model-Year-Police-Vehicle-Evaluation-Test-Book.pdf

To give some comparison to this, a 2016 Chevrolet Caprice PPV RWD with 6.0L engine was just tested.

60-0 in 130 feet. Again, better ABS system, better rubber, lower center of gravity, 2 decades of refinement in brake systems.

2016 PPV Tahoe, 5.3L 2wd, 60-0 in 135 feet.

2016 Harley Davidson electra-glide 60-0 in 150 feet.

2016 Can-am Spyder F3 60-0 in 122 feet.
 
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Supercharged111

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I have searched for 60-0 stopping distances by a reputable source.

The closest thing I have found would be this chart by Michigan state, for potential patrol vehicles. 5th wheel measurement of speed is used on all of the vehicles in the chart.

https://www.justnet.org/pdf/93468.pdf

60-0 average deceleration on a 1998 Chevrolet Tahoe 2wd is listed as 173.7 feet.

Curb weight is 4828# without a driver from my research.

Here is a test on 2015 pickups. Not sure on the reliability of the site.

http://special-reports.pickuptrucks.com/2015/01/2015-light-duty-v-8-challenge-braking.html
60-0 of 2015 Chevrolet 1500 with 20" Goodyear Wrangler SRA was 133.7 feet.

60-0 of 2015 Toyota's big, bad TRD PRO..... 159.6 feet. Whoa... beating a 20 year old truck by a whopping 14 feet... impressive. NOT.

No mention of curb weight on said vehicles.


Edmunds:

http://www.edmunds.com/chevrolet/silverado-1500/2015/crew-cab/rating/
"Stopping distance from 60 mph was average at 136 ft."

With an average of 40 feet shorter stopping distance in two decades, what is so significantly WRONG about a proper, working brake system on the GMT 400 and other derivative models?

Yes, they won't take repeated 60-0 stops without significant fade. That is a caveat of rear drum braking systems.

The OEM's have had two decades and hundreds of thousands of man hours to dedicate to friction compound blends, rotor and vane design with CFT software, wheel design, much better rubber compounds in the tires, larger tire contact patches, better ABS systems and so on.



Supercharged 111, do you have any OBJECTIVE data on braking to share rather than subjective?

Objective? Are you ******* serious? Have you driven anything other than a GMT400 in your entire ******* life? You know, the kinds of things that suck your eyeballs out and actually lock tires? I present that to you before an educated reply, because I have yet to lock a FRONT tire on either my 88 C1500 RCLB or my modded 98 ECSB and yes, the rears were properly adjusted.
 

michael hurd

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Yes, I am serious. I have driven many vehicles in my life.

Locking front tires does nothing to shorten stopping distances, in fact, it increases stopping distance.

I posted real, objective data from 3rd parties, what did you post?

It's like saying a vehicle spinning tires from a dead stop is fast, yet a similar vehicle that doesn't is slow, without objective data to back it up.

Edit: this forum needs more signal, and less noise.
 

Supercharged111

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I'll agree that locking tires lengthens stopping distances, though its ability to lock tires shows the ability of a honking turd of a truck to stop itself. I can toss a G-Tech in my real world truck and show what we actually enjoy for both acceleration and braking (LOL!). If you're not disappointed, then you need to relearn numbers as a whole because these things aren't a rocket science to haul down to nothing.
 

michael hurd

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Having driven vehicles with the ability to lock tires at will easily, this can be unsettling in inclement weather conditions, and downright unsafe at times.

Perhaps if you live in Las Vegas and never venture out into snow or sleet the ability to lock tires may be appreciated.
 

Supercharged111

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That's when I just modulate the brake. Nothing worse than a panic stop in the dry when the truck doesn't sense your urgent need to stop moving. It's weird because I don't recall the square body trucks being like this.
 

DirtBag

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Look into a lower gear set for your front and rear diffs. If you are running 3:73's then maybe something along the lines of 4:10's would do? Big meats are the quickest way to eat up hp and performance overall.
 
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