I did drive it onto NED's super accurate digital scale...4795 lbs with my 250 lbs, 3/4 of a tank of fuel, and a folding toneau cover installed. Cal's Jeep was 5100 lbs.

 

You go Lenn!
I did that with my '88 S10 at Atco Dragway, when I got my ordered 4.3L S10 off the assembly line.

 

Losing to your brother.. I feel that pain.

I'm blaming the rev limiter & gear ratios. Rev limits kick in too early, and that gear ratio is just not meant for stomping on it.

Edit: Slips are hard to make out, or I have a bad monitor. Were you able to get a 0-60?

 

0-60 isn't ever available with drag strip time slips sir. I'd venture to guess low to mid 7's though.

 

To easily read the time slips, just keep clicking on the picture. Every time you click on it with your mouse, it will zoom, giving you a better view.

 

Wow, those 2.3+ 60' times were killing you. I'm surprised that in 4WD it didn't do better.

 

Yes, they were. I stalled the converter as high as it would go and had it in 4 wheel peel. Just needs a lower 1st gear or 8 speeds as you mentioned.
That's the only reason my brother's Jeep was towing me....more gears!
He's 300 or so lbs heavier and has less HP. I'm guessing Chevy has a lot of torque management in the tune which is limiting the throttle by wire out of the hole. These can be adjusted with a tune. 373 gears is going to be the answer. It just feels geared too tall for a six speed. Maybe with an eight speed trans, it will perform better with the 342's that it comes with. It does however, perform very well in it's current stock tune on the street.

 

Len, I just watched the video and it seems to have a fairly big dip between the the 1-2 shift. The 8sp trans next year should help with that.

 

Did you try using the manual mode on the automatic?
I know you said you did on the dyno.

 

Very cool vid. You didn't by any chance try a RWD-only run, did you? I'd be curious to see how that compares. No power loss in the front drive train, all the power to the rear wheels, and a little wheel spin on launch isn't necessarily a bad thing. I've heard say many times that AWD, even in high-performance cars, is very difficult to launch well, mainly because there's actually too much traction.

 

I did try it in RWD...spun the tires enough to slow me down to a 16.312. I don't think it hurts my ET's much in 4WD. The 60' times are what determines a good run...so traction is more important.

 

So . . . It appears you don't subscribe to the 500-mile gentle break-in procedure.

 

Are you going to do a few mods and dyno each improvement?
20-30 extra tq & hp tuned on super unleaded will make a tremendous improvement in feel and mpg.

 

Are you going to do a few mods and dyno each improvement?
20-30 extra tq & hp tuned on super unleaded will make a tremendous improvement in feel and mpg.

I don't plan any mods for this truck at the moment. Maybe 373 gears at some point. We'll see....

 

The torque management built into these new vehicles kill the 60' times. HPTuners and a little adjustment to the torque management and watch the Colly put one on that Jeep

 

Hey Lennstang, Did you know they had an article about your run at the drag strip on the GM Authority website?::chevy::

 

Just posted it here. Had no idea GM Authority posted it till this morning. Guess the press also watches this site.

 

While I've been anxiously awaiting these trucks and will be patiently waiting a while longer for the diesel to come out I have to say I'm a bit disappointed in how it ran.

I originally felt GM should have used the 4.3 in the new twins and was vocal about it. I sorta backed down and took a wait and see approach. Now I'm back to thinking the 4.3 was the better choice again and this might just add fuel to that argument. I've seen tests of quad cab, 4x4 Sierras and Silverados with the 4.3 getting the same or better times and speeds in 1/4 mile runs.

Also seeing the Jeep with less HP, less torque and a fair amount of more fat on it pulling better times helps support that. Maybe the 8-speed auto next year will bridge the gap and help cover up some of the inadequacies in this motor.

 

I am so confused.

Did GM set out to build a midsize truck that would support CAFE requirements or a drag racer?

I am not sure if the 4.3L would have been a better engine or not for this truck, but I also know I don't need a vehicle that can beat all of the others off the line when the light turns green. Everything I am reading here seems to suggest that GM tuned this vehicle correctly for the market they were seeking. If the market for Typhoons and Syclones is greater than the market for mid-sized trucks, then perhaps they missed the mark. But something tells me that the people who care about MPG and a vehicle that can be easily on city streets and fits in a garage are a larger set of potential customers than the ones who are going to be studying the 0-60 times for a truck.

Of course, I could be wrong since people seem to think racing up a mountainside with a load is a valuable insight into what most truck buyers need to know.

NOTE: This is not a hit on the Lenn, he is free to test his truck and utilize his truck in whatever fashion he wants to - we are still a mostly free country. And his test provide valuable insight in many ways as to what we can expect from our trucks. Knowing the capabilities of the truck versus needing a truck designed for drag strip or street racing are two totally different issues.

 

CaryBosse, thanks for the comment.
I have a feeling that some forum members might have the wrong impression of me and the new Colorado so I'm going to set the record straight.
I'm a motorhead at heart. I'm the oldest of 5 brothers born to a 50's hotrodder, our father. We are all very competitive with each other regardless of what vehicle it is. From snowmobiles, motorcycles, cars, trucks, ATV's, etc.... we just love racing each other. So going to the track with our vehicles is just a understood common thing we do. It's more about the fun and we don't take it too serious. Just google search me, lennstang, and you'll find many snowmobiling, drag racing, motorcycling, and atving videos I've posted over the years.

The new Colorado is obviously not built for drag racing. But, it's a very capable truck. I purchased it to replace my 2010 Silverado. (which had the 403 hp 6.2 motor) I will use it as my daily driver. It really goes great. I wanted fuel economy and comfort and the Colorado has both. I just took it to the track to see what it would do and posted the results here to give all of you a chance to see it in action in the hands of a typical consumer.(OK, maybe I'm not so typical, lol) Chevy has done a phenomenal job with this truck. As more people purchase them and post their reviews either here or on other forums, everyone will begin to realize what a home run GM has on their hands. RodSlinger, don't be disappointed by my results, I'll bring it back to the track next spring after it has some miles on it and I'm sure the numbers will improve. If you haven't tested one yet, get out there and do so. I'm sure you'll be impressed. BTW, I will be towing with it shortly. Once we get snow, I'm headed north to go sledding with my 2 sleds in my enclosed trailer...total weight of about 3200 lbs. I'll post that info once I've had a chance to tow.

 

Considering I've taken an Aerostar to the drag strip before, I don't see any problem in taking a Colorado or Grand Cherokee. I think my best pass was a 17.1, btw. Haha

 

Lenn,

I suspected as much from what you were describing. And while drag racing is not what these trucks were designed to do, the data does help us understand how the trucks are tuned.

I suspect that the V6 is going to be a perfect engine for me. My biggest concern is that it has too much power and I find myself getting speeding tickets.

 

Lenn,

I suspected as much from what you were describing. And while drag racing is not what these trucks were designed to do, the data does help us understand how the trucks are tuned.

I suspect that the V6 is going to be a perfect engine for me. My biggest concern is that it has too much power and I find myself getting speeding tickets.

This could definitely be a problem. Getting off the highway to head back to the dealer on my test drive, the 4-lane road is 35 mph. Salesguy even warned me about the speed limit. A few seconds off the off ramp and I'm suddenly doing 51. Its power is very deceiving.

 

Thanks for the fun video. Looks like it runs pretty well for a box stock computer controlled 4700 lb brick.

I also have a bit of drag racing in my blood (Just google my name) and have to say that the truck is fast enough. The 4.3 would have been a bonus and a 6.2 like the 13 Denali PU I have now would have been even better. The fact is. They built it with a 3.6 and I ordered one last week. Don't intend to use it at the drag strip but its nice to know it will get out of its own way.

Looking forward to getting my bright red Canyon SLT to drive on the road. Looks like it will do everything I want it to do for me and look way cool doing it.

Frank Tamez
Yakima Wa

 

You're welcome Frank....ah...I mean....Mr Tamez...I'm not worthy...LOL
Guess it's in your blood too! Nice to have like minded people on this forum!

 

TAMEZ MAKES HISTORY

"Frank Tamez, of Yakima, Wash., has established himself as the quickest driver in a naturally-aspirated, automatic transmission doorslammer..."

Think you could get another half second out of your Canyon Frank?

 

Ummm, those credentials pretty much spell things out for the rest of us.

Geeze, the best I've ever done was on a street bike, stock wheel base, foot shifting, stock motor 9.57@151.5 on a 1.62 60' time. And that's me weighing in at 220lbs in leathers. Downright pathetic. Lol!

 

LOL.... Yep..... And I probably will....

 

Which would be easy enough. A proper tune, turn off the torque management, CAI, a good cat back will most likely result in half second or more off the ET

 

Frank will probably learn the exact combination of powerbraking and no wheelspin that will result in the best run possible. That's a subtle thing. And with his experience he'll be able to best all of our times.

You could powerbrake the heck out of it, while in 4x4 and get a great launch. But then would the extra rolling resistance from having 4x4 engaged cost you enough on the top end to offset the better launch? Probably with this low of a torque engine.

How hard can a good driver launch the thing in 2WD?
Will the CC SB have the best weight balance and launch the best? Probably.
Can we all gain another .5 second over our PB (personal best) with properly applied bolt ons and a custom tune for Super Unleaded fuel, absolutely, or even more.

But ultimately it's a truck with a V6 so really how much effort are you going to put in to it? Especially if you are Frank and have single digit 1/4 mile time track cars available to you.

 

If you want this thing quick off the line try to figure out a way to rework the transfer case so you can start out in low range and the when you reach top rpm the transfer case would shift to high range and the transmission would down shift and go through gears again.
Maybe someone will invent a synchronized automatic transfer case that will jump from low range to high range without having to stop and put it in neutral.
A 15 speed automatic should do the trick.

 

Here's my other wheels....Upgrading it slowly for some light track duty in the future.

 

THAT must look sweet tearing down the track.

Thanks everybody for the kind words. I don't intend to get crazy with the new ride as its just gonna be my daily driver.

IF I wanted to get the most of it however

The biggest bang for the buck is a 100 horse shot of nitrous. Should be good for 1.5 to 2 seconds.

Or a torque converter with 600 to 1000 rpm more stall. Keep the motor in the power band. Would probably pick up a second

Gears would help but if the 60 doesnt get better by getting the RPMs up it would not help that much... Maybe 2 tenths

A tune is usually good for 20 or 30 horsepower.

Or... (my favorite)

A good friend owns a shop in Tacoma WA named Turbo Technologies.... A pair of twins would make it fly. lol






PS.... That car is bad ass. Is it a 49 or a 50?

Frank

It is so cool to have guys like you here!

I put a tune on my last MINI Cooper S and got 30 more horses out of it -- pretty significant when you're starting with just 172. I wouldn't be looking to add any more max HP to this truck, just more low-end pull (not that I'd turn down a few more ponies if they wanted to join the party). My triple digit days are mostly behind me, but I still like being thrown into the back of my seat every now and then. And I'd have no problem sacrificing a MPG or two to make the ride that much more fun. Just because it's a truck doesn't mean it can't be fun now, right?

 

Thanks everybody for the kind words. I don't intend to get crazy with the new ride as its just gonna be my daily driver.

IF I wanted to get the most of it however

The biggest bang for the buck is a 100 horse shot of nitrous. Should be good for 1.5 to 2 seconds.

Or a torque converter with 600 to 1000 rpm more stall. Keep the motor in the power band. Would probably pick up a second

Gears would help but if the 60 doesnt get better by getting the RPMs up it would not help that much... Maybe 2 tenths

A tune is usually good for 20 or 30 horsepower.

Or... (my favorite)

A good friend owns a shop in Tacoma WA named Turbo Technologies.... A pair of twins would make it fly. lol






PS.... That car is bad ass. Is it a 49 or a 50?

Frank

 

PS.... That car is bad ass. Is it a 49 or a 50?

Frank

49 Ford Tudor
351W rebuilt with forged pistons, mild cam, shorty headers, Eldelbrock intake and Holley 650 and CAI
TCI AOD automatic with 2500 stall
disc brake conversion with power
power rack and pinion conversion
8.5" pos rear
air bag front end
custom interior
side exhausts
currently runs a 14.6 1/4 mile
Future improvements: AFR 165 heads, much more cam, air gap intake, Proform carb, 125 hp shot N2O, etc...

My father gave it to me last year....he's owned it for 35+ years. and he did most of this himself with some help from me. He has Parkinson's and can't enjoy it anymore. I will carry the torch proud and high!

 

done

 

Hey Frank,
Do yourself a favor and pull those sheets down, black out your address and phone # and other stuff, then repost.