Competition poor track times..

[AMcKee]

I have a 03 HO crew cab, 4x4 dually. I have added twins with a 35/40 on top and an HT3B on the bottom. I have also installed a billet DTT transmission with TST (twins) and Edge EZ for added fueling. I am a fairly experience drag racer and I think my technique is sound. I leave in 4 wheel drive under about 20lbs of boost, have my tst on 5/4 and the Edge on the level 2. I know its getting the fuel cause its 1500-1600 egt by the end of the eigth, running about 55lbs of boost. I'm not sure whats going on cause Ive only been able to muster an 8. 89 @ 80 with a 2. 0 60 foot time. I was hoping for like 8. 40-8. 50 range. Any suggestions would be appreciated. Thanks, Andy.

 

[RacinDuallie]

What bulb you leavin on? That 60ft. should be lower. What is your normal average reaction time?

 

[banshee]

You're probably defueling. Look into a BD RAD box... . they work wonders.

 

[Bandit1]

how soon do you hit lockup, trans may need to be tweaked to hit lockup sooner and get more directdrive time b4 you run out of road. a lockup switch may help. just a thought

 

[Smokin Dodge]

Have you tried higher settings on the TST.

 

[DSteimle]

What bulb you leavin on? That 60ft. should be lower. What is your normal average reaction time?

uh... i really don't think reaction time has anything to do with 60 ft times. they are independent of each other. (seeing as how the 60ft,330,etc clock doesn't start till you break the beam which stops the reaction time clock)

 

[TGibbs]

the RAD worked wonders on launch, before the RAD if you staged it would defuel and keep cutting out. Now it throws your head against the headrest if im not careful but from what I have heard, the input shaft usually breaks after putting in the RAD, a billet input is a must on the list with the RAD

 

[AMcKee]

banshee, Can you tell me alittle more about the BD RAD box? Functionality, Cost, where to get it??



Bandit1, My transmission locks up real late, where ever DTT has set it up to. I have no controler. How important do you think a transmission controler is?



Smoking Dodge, on any higher setting on the TST it doesnt seem to run better it just seems to get real hot. Seems to be the best setting for power, although I have not tested on the dyno yet.



TGibbs, I have never noticed the truck defuel unless the egt's get too hot. When I stage I can make as much boost as the brakes will hold and when i launch I have never noticed the fuel cutting out.



I appreciate all of the help and keep it coming please, Andy

 

[banshee]

AMcKee,



The BD RAD (Race Anti Defueler) overrides the factory torque management on the automatic trucks. What basically happens is when you powerbrake the truck in 4wd to build boost the ECM senses boost being built, but it knows the truck isn't going anywhere. In order to save the stock transmission the motor "defuels" itself to cut back on the torque being produced. What you feel when racing is a flat launch and sometimes you get a long pause on the 1-2 shift. Different trucks seem to have it to varying degrees... some will have only a slight pause upon launch and will shift fine while others will fall on their face severely and absolutely will not shift 1-2 without lifting on the throttle w/o the RAD. It's easy to install (clip 2 wires and hook up to the 4 ends you get) and they work well. My '01 auto would run 8. 8s in the 1/8th and 2. 0 sixtys without the box but dropped to the 8. 3 range and 1. 80 and less sixty times with it... a HUGE improvement. They also disable the top speed limiter. The only downside is you lose your dash speedo, but you can flip back to the normal mode after you're in 2nd gear. You can get them from BD... I think their webiste is www.bd-power.com. I think they're around 300 bucks... . maybe more now. They have all the info on their site. Hope it helps!!



John

 

[Rhondasway]

Your 60' times are slow, which is crucial. I don't know anything about the fueling you guys deal with, but staging is also important. Your reaction time does not matter, but where you stage is. You want to just barely light that second bulb, which could help your 60' (all other things being equal).

 

[Bandit1]

AMcKee- call bill k , the entire family is huge into drag racing. if you have a problem then they can identify and fix it. i have a buddy that had the same 1/4 times with an hx 40 and BD injectors and a setup with piers twins and don m 6 injectors. over 100 hp more and he had the same exact time. bill told him that he needed to upgrade the VB in the trans to hit lockup sooner, or install a lockup switch to get the full power to the ground.

 

[AMcKee]

AMcKee- call bill k , the entire family is huge into drag racing. if you have a problem then they can identify and fix it. i have a buddy that had the same 1/4 times with an hx 40 and BD injectors and a setup with piers twins and don m 6 injectors. over 100 hp more and he had the same exact time. bill told him that he needed to upgrade the VB in the trans to hit lockup sooner, or install a lockup switch to get the full power to the ground.

Bandit, who exactly is Bill K?? I probably need a lockup controller as well, thanks for the info. Andy

 

[Turbo Thom]

Why not just install 2 switches? One for OD and one for lockup. Take OD out at the dash button and control it manually. Same with the lockup. Lock when you want, not when the puter says too.



. Preston . .

 

[Bob Wagner]

Bandit, who exactly is Bill K?? I probably need a lockup controller as well, thanks for the info. Andy

http://www.dieseltrans.com

 

[Bandit1]

he built and designed the trans you have. that is the main reason that i suggested him. he knows his trans inside and out. i hope you get it figured out. www.dieseltrans.com

 

[Morse]

On a good note, the factory defuel may be a good thing for those of us that haven't gone with the billet input. A buddy of mine also was upset that both our trucks cut the same 2. 0 60' times, and his has twins. . He also has billet shafts, so I'll have to tell him about the RAD box. . Good info.

 

[mattymac]

Another thing to concider is your rail pressure, it can rob HP and kill your EGT's. With twins you shouldnt be having egt problems with a TST/EZ stack on the levels your at? I can run 7/7 EZ 3 with my SPS 66 and be around 1300-1350 when im rollin in 6th with about 50 lbs. But the majority is your 60ft times, like the others said, get a RAD and just do the same thing your doing then see what happens. Just make sure you have good input/output shafts or its game over when you roll through the lights.

 

[AMcKee]

I just got off the phone with a tech. from BD power. He said that the RAD only acts as a speed eliminator and has zero impact on the torque managment in 3rd gens. Any other suggestions??

 

[paulb]

The mph that you have in the 1/8 says that you are making pretty good hp. You r 60ft times suck though. How much does your pickup weigh? As a guess at the weight you are at, you are probably at about as good as you are going to get, without adding a bunch more power. I would guess that you are over 8000lbs.



Paul

 

[AMcKee]

The mph that you have in the 1/8 says that you are making pretty good hp. You r 60ft times suck though. How much does your pickup weigh? As a guess at the weight you are at, you are probably at about as good as you are going to get, without adding a bunch more power. I would guess that you are over 8000lbs.



Paul

Yah i was affraid of that, and yes I'm at 8200 w/driver.