View Full Version : 2500hd 1/4 Mile Guestimate


2500ss
10-10-2007, 04:07 PM
HI I HAVE A 2007 NBS EX/CAB 2500HD 6.0 WITH THE 6 SPEED AUTO .WHAT IVE DONE TO IT IS JBA SHORT TUBES(FOR WARRANTY) 3.5 IN MAGNAFLOW EXHAUST ,CUT OUT 9 MM JBA WIRES,AFE CAI & TUBE,EFI LIVE TUNE BY THUNDER RACING,NX 150 SHOT(WET) MY QUESTION IS WHAT WOULD YOU GUESS MY 1/4 MILE TIMES WOULD BE WITH THIS SETUP ALSO WILL A SUPERCHIPS THERM FOR A 2007 CLASSIC WORK IN MY TRUCK I BOUGHT THE WRONG ONE AN CANT RETURN THNX:usa:

mwalls54
10-10-2007, 04:09 PM
i would say it would run low 13s for sure,

SIKDMAX
10-10-2007, 11:43 PM
Is that tranny built up for it? If not youre gonna be losin a lot thru the slushbox.

2500ss
10-10-2007, 11:48 PM
I Guess Ill Find Out I Havnt Hit The Spray Yet Cause Im Waiting To Get Back Down South To Have A Nitrous Tune Added But I Still Need To Know If I Can Put A Thermostat From A Classic In This To Drop My Temp

RandomHero
10-11-2007, 12:05 AM
i would say it would run low 13s for sure,

You sure about that? I highly doubt those mods are going to knock 4 seconds off his time. Those mods in a 1500 truck would probably net him a high 13.

I bet you run a mid 14.

2500ss
10-11-2007, 07:46 PM
i dont know what you meen about 4 seconds i allreadt ran a 14.86 with just a tune on the engine and magnaflowe exhaust so i think low 13s ill be easy im lookin for low to mid 12s eventualy

Vortec MAX
10-13-2007, 01:34 AM
i allreadt ran a 14.86 with just a tune on the engine and magnaflowe exhaust...
Holy:turd: RU FN serious? :shocked: In a 3/4 ton to boot? :eek2:

I had no idea.

Mike

RandomHero
10-13-2007, 02:09 AM
Holy:turd: RU FN serious? :shocked: In a 3/4 ton to boot? :eek2:

I had no idea.

Mike

Yea that seems awfully screwy. That's damn fast for a 5.3L half ton. I know you have a 6.0 but still.....damn

2500ss
10-13-2007, 04:01 PM
yeah im serious random hero must have had some slow trucks bacause my last ruck was a reg cab 5.3 stepside and with just exhaust cai and a hypetech it ran 14.00

ob_silverado
10-13-2007, 07:02 PM
Its has 355 hp and 6speed auto stock tune and muffler its probably close to 375 to 385 there so much left on the table. I raced one with a muffler and beat him by just a truck and I ran 14.9 with my truck.

Wide Open
10-13-2007, 08:45 PM
That is without the the nitrous?
Congrats, those are some good times.
I am not aware of any differences in the thermostats between the any of the LS motors.

2500ss
10-13-2007, 09:22 PM
thnx but my tuner told me it want fit so i have to order another one

Wide Open
10-13-2007, 09:54 PM
Yep, just looked it up on the ACDelco parts site and they are definitely different.

Vortec MAX
10-13-2007, 10:28 PM
yeah im serious random hero must have had some slow trucks bacause my last ruck was a reg cab 5.3 stepside and with just exhaust cai and a hypetech it ran 14.00

WOW again! You better measure the length of the track you run on. I suspect it is short.

Mike

2500ss
10-13-2007, 10:32 PM
maybe it is why dont you come to them this winter and ill show you (state capitol,no problem raceway)

Vortec MAX
10-14-2007, 01:10 PM
No Problem hehehe. I looked up the track, in Belle Rose, LA. The track elevation there is 15 feet, which would certainly help out your times. And...if you run in the winter, the air density is about as good as your going to get anywhere on this planet. This means if you take your actual time and apply a correction factor to it for weather, your corrected times would be slower.

So, maybe you really did run those times. I still find it incredible...those times are both very quick, even for the conditions.

Will you pick out the next truck I buy? You seem to have a knack for picking the freakishly fast ones. :)

Mike

XLR8NSS
10-14-2007, 08:34 PM
I test drove a new 2500HD ECSB 4wd and they are quick guys. The new 6.0L and 6spd auto really move out. :eek2:

gonzo 6.0
10-28-2007, 02:59 PM
Any word if they will soon have a 6.2 option for the 2500?

L82gofast
12-09-2007, 06:28 AM
I test drove a new 2500HD ECSB 4wd and they are quick guys. The new 6.0L and 6spd auto really move out. :eek2:

Yep. With my cam now, it feels every bit as quick as the '02 1500HD with the sidemount magnacharger. that one was runing 14.5 or so.
I'll get it down to the san antonio raceway one of these days....
Love the 6sp.

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