justinp20012500

What is your trap speed?



Justin

hotmopr

How do you like that turbo? I havent heard any input about them yet..

Gene007

So guys, we are saying I may get my truck down from 14.5 sec to mid 13's fairly easy, maybe little bigger injecters and more turbo. The set up in my signature seems strong but would hope for a little more.

Gene007
WarWagon

mcoleman

Trap speed on the 13.18 pass was 98 mph but that was with the box set on 5X3 and fighting the 20 mph headwinds. My can-bus connection was causing issues so I tried setting the box down to get it to build boost. Normally the 12 second passes are in the 103 to 104 range. The 470hp dyno numbers I have are with the HTB2 and the truck was only making 38 psi that day. I like the Sledpuller 66 but it spools slower than the HTB2 by quite a bit at low speeds. I have plans for moving up in the hp wars this summer and the Sledpuller fits the bill nicely. I'm hoping the catcher ecm fixes some of that. The calculations normally used to calculate hp/1/4 times aren't very accurate on our engines due to the tremendous torque we make. Gene I think your truck would run a high 13 right now with a hard launch assuming that you have billet shafts. What was your 60 foot time? I normally 60 foot in the high 1.6 to low 1.7 range with a minimum of a 10 pound launch. The 1.66 was with a 20 psi launch. I usually don't push it that hard though.

Gene007

MC, I've tried with around 10 psi, anymore and the tires just smoke (285/75/16). My son normally does the runs because his reaction to the lights are as one. I don't believe he breaks out with any more than 10, maybe 15 but has to feather it out of the gate. The tranny has with stood the abuse, thanks to DTT. Probably need to upgrade my fuel system soon, Fass or similar. The Mach 4's would be next.
Regards,
Gene007
WarWagon

yzfr6

Is there anybody out there that can run a 1/4 mile under 13 seconds with a manual tranny? Or is there just to much time shifting / turbo lag?

mr T

2 wheel drive for the track would be my choice...but lets say u ever wanna get into pulling competitions then you'll cry because you didnt get yourself a 4x4....so go 4x4 !!...if ur a do it urself type of guy then get a 12 valve you'll have more fun and satisgaction...if u like to let the computers do all the work for u then get a 24 valve..

bama

02 q cab 4x4,,stock hy turbo,stock exhaust minus muff,,,,dd3`s-400,puck-300,powermax comp-450,,total 1150 in motor(all used parts of course)with a goerends con and vb as only trans mods(1550 new),,with max set only to level 5 because lack of turbo,,,,,,8.80@79,,,13.80@99.9,,,,with a full tank of fuel to boot,and no way to do really hard launches because of the defueling off the line.....same set up as above except with a set of rv275`s in it went a 14.30.........bama

Rhino

bama, your EGT's at the end of the track must be crazy with that little turbo.

Dockboy

13.18 @ 98mph You must be standing on the brakes at the end of the run



ezdemon72 ,


HERE is a video and the TIME SLIP of a friend of mines "98.5 2500 silver quad cab with a PDR HX-40 , ATS Manifold, Blue chip fueling box, VA timing box , DD Supermental injectors, Full DTT tranny by Massdiesel" doing a 13.619 @ 99.63

paulb

I run low 13's with my comp box on 3x5. It will run high 12's on 5x5, but the egt's are crazy, and I don't have drive shaft loops (NHRA requires loops quicker then 13.00).

By your comments I take it your are leaving in 2 wheel drive? I leave in 4x4 (I have billet shafts), usually at 15psi boost, and end up with 1.7 60ft times. 20psi and I have 1.6 60ft times, but it spins hard off the line, and it's not as consistent because of this.

I was running low 14's last year, with the main change being the Mach 4's (Mach 1.5's last year). The Mach 4's are awesome! I can run a 14.4 with the comp box off!

Hope this helps...
Paul

mcoleman

Dock, It felt like I was on the brakes that pass. With the box turned down and the strong headwinds it was like picking up a trailer at the 1000 foot mark. Wife said the smoke cleared up before the 1/8 mile cones and it ran clean the rest of the way through. My 1.66 short time was with a 20-25 pound launch but I prefer a 12-15 pound launch. My truck wouldn't build boost that day until it hit a higher rpm and then it would go instantly up to the boost level for that rpm. As soon as it started building it went to inbetween 20 and 25 pounds so I turned the truck loose and let her rip. I can't afford to do that very often. I have feeling that parts will break eventually at that level. I have fixed the boost issue since then and I can now build 5, 10 or whatever psi I need.

bama

hey rhino,,i really dont know what they were,,,1600 is at about 4 oclock,,so,whatever 6 oclock is,,thats it!

Rhino

I'd say it might have been pretty toasty