60ft times

[03DakStampede]

Im beginning to get disapointed with the money spent vs. gain in the 1/4 mile. I went from 3.55 open to a 4.56 w/detroit trutrac and caltracs and went 1-2 tenths faster. I then re did the exhasut to a 2.5" mandral bent y-pipe into a single 3" and installed a Edge 2800 stall converter and didnt gain a thing but .040 in my 60ft and nothing in the 1/4. Somthing just doesnt seem right. Im really thinking it has to do with the torque managment. Here is a list of my complete mod list.

The truck is a 03 Dakota 4.7L 545rfe c/c

Ported and Polished TB
K&N CAI
Superchips tuner
2800rpm Edge converter
Stage III Valve body
1.5ohm resistor (for trans line pressure)
4.56gears
Detroit trutrac
Cal-trac bars
race weight is 4200lbs with me in it

[SharaDon]

Im beginning to get disapointed with the money spent vs. gain in the 1/4 mile. I went from 3.55 open to a 4.56 w/detroit trutrac and caltracs and went 1-2 tenths faster. I then re did the exhasut to a 2.5" mandral bent y-pipe into a single 3" and installed a Edge 2800 stall converter and didnt gain a thing but .400 in my 60ft and nothing in the 1/4. Somthing just doesnt seem right. Im really thinking it has to do with the torque managment. Here is a list of my complete mod list.

The truck is a 03 Dakota 4.7L 545rfe c/c

Ported and Polished TB
K&N CAI
Superchips tuner
2800rpm Edge converter
Stage III Valve body
1.5ohm resistor (for trans line pressure)
4.56gears
Detroit trutrac
Cal-trac bars
race weight is 4200lbs with me in it

How do you gain .4 in your 60 and nothing in the 1/4? The rule of thumb is 1 tenth in your 60ft is 2 tenths in the 1/4.

I would ask Sean what SCT can do for you.

[03DakStampede]

Ive been trying to get a hold of him but have not been able to do so. Ill post up my before and after times tomarrow when i get home from work.

[03DakStampede]

How do you gain .4 in your 60 and nothing in the 1/4? The rule of thumb is 1 tenth in your 60ft is 2 tenths in the 1/4.

I would ask Sean what SCT can do for you.

whoops my bad thats supposed to be .040 lol

[tajm]

the 4.7's are known to fall flat on their face on the top end. especially when you get above 2.5 on the exhaust, its "not enough back pressure"

alot of guys swear by that but i went all 3 and cut outs and didnt notice a decrease

to only gain .4 and nothing in the quarter is probably:

a: changes in weather (extreme changes) between the two runs

b: check your wiring for a short between the steering wheel and the seat

[SharaDon]

the 4.7's are known to fall flat on their face on the top end. Especially when you get above 2.5 on the exhaust, its "not enough back pressure"

alot of guys swear by that but i went all 3 and cut outs and didnt notice a decrease

to only gain .4 and nothing in the quarter is probably:

A: Changes in weather (extreme changes) between the two runs

b: Check your wiring for a short between the steering wheel and the seat

lol

[SharaDon]

Ive been trying to get a hold of him but have not been able to do so. Ill post up my before and after times tomarrow when i get home from work.

Hemifever@aol.com

[adamsredlines]

What kind of 60' are you cutting?
I am in a Ram and cut 1.9 60' in my 4.7 with 4.56's, Edge stall, exhaust that everyone says is too big, cams that everyone says suck, and heads that are "crap hand port" according to others (4700 lb race weight with me in it).
A tune will help alot, but torque management is probably not helping either.

Have you checked into the TMR mod? '02's and some 03's can do it and it'll make a world of difference i your launch and shifts.

[tajm]

dont forget an engine too small.

[tajm]

by the way, stampede, make your home here and not dodgetalk, everyone on dodgetalk has poor reviews of mod's they never tried

one person post wrong information and to "stay in the loop" it gets repeated ad nauseam to the point it becomes true.

[adamsredlines]

Nitrous blows up 4.7s!!!! :p

[03DakStampede]

best 60ft to date is 2.1041 with a 1/4 time of 15.3489@88.17mph
Ok here are some of my times
Best Stock
60ft 2.2510
1/4 15.5568@86.57mph with a 60ft of 2.2740

Best with gears and caltracs
1/4 15.0309@89.08mph with a 60ft of 2.1430

Best with gears, caltracs, converter and exhaust
15.2765@88.02mph with a 60ft of 2.2155
60ft 2.1041 with a 1/4 of 15.3489@88.17mph

It doesnt really add up. I have talked to a few friends that are local here tho none run chrysler stuff and we all seem to think that TM is really killing me out of the hole and would explain why the truck hooks so good on street tires. As for the TM mod unfortunatly with mine being a 03 it has the NGC controller and cant cut the wire. :mad:

[hemigoat]

adamsredlines-your setup sounds like mine, it is all wrong and cain't do what i say it does! The stuff i do will never work! HAHA:devil:



.................................................. .................................................. .

[adamsredlines]

best 60ft to date is 2.1041 with a 1/4 time of 15.3489@88.17mph
Ok here are some of my times
Best Stock
60ft 2.2510
1/4 15.5568@86.57mph with a 60ft of 2.2740

Best with gears and caltracs
1/4 15.0309@89.08mph with a 60ft of 2.1430

Best with gears, caltracs, converter and exhaust
15.2765@88.02mph with a 60ft of 2.2155
60ft 2.1041 with a 1/4 of 15.3489@88.17mph

It doesnt really add up. I have talked to a few friends that are local here tho none run chrysler stuff and we all seem to think that TM is really killing me out of the hole and would explain why the truck hooks so good on street tires. As for the TM mod unfortunatly with mine being a 03 it has the NGC controller and cant cut the wire. :mad:


The caltracs take time to dial in, its not just a "toss 'em on and get an improvement" kinda mod...and to be quite honest, they are probably overkill for what you've got goin on. The torque converter will "get better with age" also, so the first time out isnt a really good basis on what it is capable of.

I was pretty sure superchips got rid of torque management, or most of it, dont they?

To me it sounds like you're doing alot to help launch and stick a launch without the supporting engine mods to really show the gains.

[tajm]

you'll have to delete it.

i suggest sct and get rid of the k&n

[03DakStampede]

The caltracs take time to dial in, its not just a "toss 'em on and get an improvement" kinda mod...and to be quite honest, they are probably overkill for what you've got goin on. The torque converter will "get better with age" also, so the first time out isnt a really good basis on what it is capable of.

I was pretty sure superchips got rid of torque management, or most of it, dont they?

To me it sounds like you're doing alot to help launch and stick a launch without the supporting engine mods to really show the gains.

I figured that with the caltracs Im not 100% sure on how to dial them in either way on the street the truck hooks just as good with out the bars tightend up which is odd if you ask me. As for the engine mods that is correct im not really wanting to put alot into the 4.7 as I plan on pulling that in the next few years and droping in a 5.7 stroker or a 6.1. Still i would expect more gains with the current setup then what i have seen.

What are you guys averaging for gains with the same mods?

[dline]

i dont see your converter giving you any gains, your 60ft shouldve got better with the converter.

[03DakStampede]

exactly!!! But why? Im thinking torque management. Im not thinking a set of stickies is going to make any improvement in the 60ft times. But then again im not really sure.

[adamsredlines]

Again, everything you're doing you really need other mods to take advantage of them. I dont think the caltracs did you anything, the torque converter should over time but maybe not the first time out...and you gotta also make sure you compare apples and apples (weather, etc).
I dont understand why you're doing all these traction mods with no other mods though...doesnt really make much sense.

[03DakStampede]

I dont understand why you're doing all these traction mods with no other mods though...doesnt really make much sense.


6.1Hemi :drool:

[03DakStampede]

Again, everything you're doing you really need other mods to take advantage of them. I dont think the caltracs did you anything, the torque converter should over time but maybe not the first time out...and you gotta also make sure you compare apples and apples (weather, etc).



Agreed but what im not seeing is the gains that should be made for the gears and for the converter. Granted stock the truck didnt have a lsd so i had to baby it out of the hole but even still im running what these trucks are running stock. And I have gears and a converter. What gives. Im not trying to whine and complain just trying to figure out what I am doing wrong or what is wrong with my truck. I only have one thing to add any sort of power which in my honest opinion didnt do anything is Superchips. All that pretty much did was firm up the shifts and possibly reduced torque management.

[adamsredlines]

Are you still babying it out of the hole?
Are you sure you arent spinning?

[tajm]

I wasn't noticing differences from my converter or gears for a few months.

Build up everything else before you worry about hooking. Traction shouldn't be a problem just yet

[03DakStampede]

Are you still babying it out of the hole? Not much if any i launch around 1500rpm
Are you sure you arent spinning? Im spinning just alittle bit just enough to chirp the tires. when i let off the brakes