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Dakota Performance
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Mills
Dodge Dakota
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12/13/2001
14:57:04

Subject: 4.7 1/4 times
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purely so i can make some comparisons.....would anyone with a 4.7 that has run a 1/4 let me know some times......im curious.

thanks



Josh
Dodge Dakota
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12/13/2001
15:09:37

RE: 4.7 1/4 times
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14.96 stock
Reg cab, 4.7L, Auto, 4x2, drag radials



Duner
Dodge Dakota


12/13/2001
16:10:45

RE: 4.7 1/4 times
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'00 CC 4.7 5-speed 3.92 LS

15.20 Bone Stock + Street tires
14.87 Bone Stock + Drag Slicks
14.63 PCM + Street Tires
12.76 PCM + Turbo + TB + Exhaust + ET Street Slicks



Crusty
Dodge Dakota


12/13/2001
16:26:21

RE: 4.7 1/4 times
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Anyone gone down the strip in a 4x4 CC 4.7L 3.55 manual? I am also just curious, this way I dont have to ask you guys who I can beat...Ill just look in C&D.



alex
Dodge Dakota
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12/13/2001
16:30:35

RE: 4.7 1/4 times
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'00 CC 5-spd 3.55LS

Bone Stock 16.30@87.~~ mph
No Air Filter 15.93@87.5~ mph
K&N + Mobil 1 Lube 15.50@88.~~ mph
Volant Intake Tube + Autolite3923's 15.41@88.9 mph
All the above + Lakewood Bars 15.38@89.2 mph
All the above + 70mmTB + DynoMax Cat-back ????
Add a PCM flash???
Wait til March when Atlanta Dragway opens!




ZenDak
Dodge Dakota


12/13/2001
17:22:13

RE: 4.7 1/4 times
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'01 CC 4.7 auto 3.55
2 chamber flowmaster-catback
360airintakez intake
a lead foot

was running a 15.5 w/out the intake. Since I've put on the intake, I can't seem to launch w/out too much wheel spin. I have some Lakewood traction bars, and it really hooks up when they are on, but I've never run the 1/4 w/the bars on. They hang too low, so I took them off for now. I'm hoping I'm in the low-low 15's,,especially with the cooler weather!




Skeletor
Dodge Dakota
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12/14/2001
13:46:57

RE: 4.7 1/4 times
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Were any of these 4x4s? Also looking as I have a 2001 QC 4x4 4.7l 5 speed 3.92 SLT



CThomp
Dodge Dakota


12/14/2001
14:14:57

RE: 4.7 1/4 times
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Duner, what size street tires do you use?



Duner
Dodge Dakota


12/14/2001
14:24:49

Tires
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I'm running 255x55x17 Michelin Pilots on the R/T wheels. The 14.63 @ 93.33 mph was run with the stock "sport" Goodyears before I switched to the 17" wheels. The Michelins don't look as nice or corner as well as Nittos or other "performance" tires, but they are super smooth at any speed. They work pretty well in the rain also.... like that's much of a concern here in AZ. hahaha

At the track I use ET Streets that are 28x11.5x15s on my original stock wheels.



CThomp
Dodge Dakota


12/14/2001
14:56:07

RE: 4.7 1/4 times
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Thats awesome. .57 seconds off your 1/4 mile with the PCM? Man thats a serious gain.



Duner
Dodge Dakota


12/14/2001
15:06:02

RE: 4.7 1/4 times
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There's a current thread on moparchat.com where I mapped out the mods and results. Cut and paste this addy into your browser:

http://www.moparchat.com/forums/showthread.php?s=b27c0466c9ae903f4c47a7118853d1c4&threadid=42928

My PCM was reprogrammed by Z-Industries. They do the programming for Lingenfelter as well as the high-dollar Viper crowd. They no longer want to offer the programming for the Dodge trucks. Leach industries has a nearly identical program they use for the 4.7s. It's pricey but worth the cost/effort.

Mike Leach: 714-639-5220



alex
Dodge Dakota
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12/14/2001
16:35:24

RE: 4.7 1/4 times
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Duner:

I read the MoparChat thread, but they won't let me respond there yet. Must not be activated yet.

I havae the same truck (3.55 rear). I noticed the same power loss from the Dynomax Cat back Kit. I added the 70mm TB with the stock PCM and stock exhaust and it was a true KICK in the A$$!! The truck used to lay down at 4000 and just die at 4700, so shifting at 5000 seemed useless. The TB let it pull all the way to 5000 before it gave out. I have yet to get to a track to find out the gain (and I've never put it on a dyno), but it felt waaaay stronger from 2000 to 5000. This was with a Volant Intake tube and their version of the cotton gauze filter.

When I added the Dynomax kit, it won't make power til 3000, and then it still gives up at 5000. Their kit has a 3" length of pipe from the cat to the front of the muffler. I was considering replacing that with some 2.5" pipe like the stock piece. Should I get the 3" cat and leave the 3" pipe all the way back? I don't have pre-cats. I don't want the power band up at 3000, either. I gotta drive to work in stop & go traffic. Guess I'll be "Leaching" my PCM soon, too.



Duner
Dodge Dakota


12/14/2001
16:56:21

RE: 4.7 1/4 times
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Hmmm, if you are wanting to keep the stock cat than the 2.5" pipe between the cat and the muffler might give you the low end power back. But changing out the entire section between the Y pipe and the muffler with all 3" (including the cat) will make the truck sing! Or at least mine did with the PCM. I'm not sure how mine would act without the PCM under those conditions. I do know that the PCM is necessary to make the higher rpm power above 5000 rpm.

I think the whole system has to work together for any really good gains. Once you get the intake balanced with the exhaust, and the PCM will allow it.... the thing really performs well. I just didn't like the space between the performance with just a PCM with stock exhaust and when I was trying things with the exhaust and the intake. For a while there I was wishing I would have just left everything alone! hehehe



alex
Dodge Dakota
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12/14/2001
17:20:08

RE: 4.7 1/4 times
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That's what I'm going thru right now. Atlanta Dragway is closed til March and I never got an E.T. to measure the gains from the 70mm TB with the stock exhaust. I don't want to flash the PCM before I get a baseline with the DynoMax and the 70mmTB. Now I'm driving around in a rumbly slug until March. Maybe it's not a slug, but it sure takes a while before it starts pushing me back in the seat.

Maybe I need to find a junkyard PCM so I've got two like you!!! Then i can swap PCM's to get the baseline, right? HeeHee....

Did the dealer give you any crap about having to flash your "other" PCM with the VIN and mileage? Can I just take it in while it's not installed in the truck?



Brian024.7
Dodge Dakota


12/14/2001
17:37:07

RE: 4.7 1/4 times
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I'll have my times later tonight



Duner
Dodge Dakota


12/14/2001
17:48:44

RE: 4.7 1/4 times
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I don't think I'd be able to wait for an actual measurement before making the next mods.
I say GO FOR IT!

Since I bought the PCM from my favorite dealership... they flashed it for me for nothing. As expensive as it was... I figured I paid for it anyway.



alex
Dodge Dakota
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12/14/2001
17:55:49

RE: 4.7 1/4 times
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Duner....

My Mom says you're a bad influence!!

hahahhahahahhaaaaaaa....

I'm going to look thru the junkyards. If I find nothing there, then I've got to decide whether to spend $450 at leach and $150 at Enterprise Rent-A-Car (downtime sucks a$$) or just spend $400 at Dodge parts (new PCM) and $450 at Leach.



Dr Q
DakotaEnthusiast
 User Profile


12/14/2001
17:58:53

RE: 4.7 1/4 times
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I got a chronology of my times at: http://www.dodgedakota.net/boards/per/2106.html
The g-tech is the most legal(legal?) fun I've had in a while.

Dr.Q
'01 Patriot Blue SLT RC 4.7 5sp 3.92 pegleg
0-60 @ 6.20sec.
1/4mi @ 14.75@97.1
Home Brew Airbox
K&N Drop In
Lakewood Traction Bars
Dremel TB Port and Polish

Duner
Dodge Dakota


12/14/2001
18:15:56

Bad Influence????
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With my gray hair - I thought I was more like a father figure! hahahahahaha

I think that once you drive it with the Leach PCM, the new one you bought will never see the light of day again. I'd just rent a car and save the additional $250 for some slicks!



alex
Dodge Dakota
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12/14/2001
18:52:16

RE: 4.7 1/4 times
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You damn sure are my daddy with that turbo set-up. Gray hairs or not. HeeHee....

I think you're probably right about the rental car. Maybe I can get a ride to work for two days and save all that money. I'd get run out and get some Mickey ET Streets, but I feel like I may need to also buy a spare posi unit to just have it laying around. You know, just in case I accidentally "Barrett" my differential. Ooops....

hahahahahahahahaha Sorry Matt!!



Naughty Daddy
Dodge Dakota


12/15/2001
02:22:00

RE: 4.7 1/4 times
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Wooo! HOOO! SPANK PAPA! You naughty kitty! Yeee haaaw! Spank it! spank it! Ayyyy! EEEEEEEE!!



Brian024.7
Dodge Dakota


12/15/2001
04:46:19

RE: 4.7 1/4 times
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i ran a 15.8@90 mph tonight, with a nasty 2.56 60 ft, only got to run twice, this truck is definately quick, plus its got extremely low milage, I'm ashamed that I even ran it tonight, but I had to.



Brian024.7
Dodge Dakota


12/15/2001
04:47:03

RE: 4.7 1/4 times
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sorry:

02 4.7 CC 3.92 LSD 5-speed



4.7dak
Dodge Dakota


12/15/2001
14:12:43

RE: 4.7 1/4 times
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How much $$ for that "great" PCM?



alex
Dodge Dakota
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12/15/2001
14:21:15

RE: 4.7 1/4 times
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I don't know what Duner paid cuz he's had his flashed like 8 times, but Mike Leach wants $450 to breathe on a PCM. Then you gotta pay Fed Ex.



Dr Q
DakotaEnthusiast
 User Profile


12/17/2001
11:50:13

RE: 4.7 1/4 times
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Hey Alex, I was looking at your times and thinking that you should be running .3 to .5 sec faster in the 1/4. I know you have the cc with a 3.55, but I think you got more speed in that there truck. Now I've never been to the strip but I've pulled about a hundred G-tech runs this fall. For me I've had to launch between 1100 and 1300 cuz I've got an open diff. its been a learning experience getting the pedal to the floor. Shifting at 5100-5200 will get you the best results. Because you got yourself a 5-speed you'll have a problem getting really consistant times. But once you got it zeroed in its a glorious thing. To be honest the single thing that has improved my performance has been the g-tech my first run was 16.3 later that night ran a 15.12 stock- so go figure.
Dr Q

Dr.Q
'01 Patriot Blue SLT RC 4.7 5sp 3.92 pegleg
0-60 @ 6.20sec.
1/4mi @ 14.75@97.1
Home Brew Airbox
K&N Drop In
Lakewood Traction Bars
Dremel TB Port and Polish

alex
Dodge Dakota
 Email

12/17/2001
12:29:38

RE: 4.7 1/4 times
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Q:

I've studied on that a long time and I've only come up with a few answers. Chris Lambert (Dakota USA) had his blue clubcab and his configuration was the closest truck to mine. He ran 14.9~ when his was stock. I was puzzled and tried to figure out why I was stuck at 15.30's.... He's in Virginia at almost sea level. More air. More oxygen. I'm in Atlanta where Atlanta Dragway is at 1100' above sea level and damn near HOT all summer long. Prolly nothing like Duner running at Phoenix in 100 degree heat (although it's dry heat) at 3000 ft above sea level. It's also very humid in ATL, and if there's two things that will kill a Dodge Magnum motor, it's heat and humidity.

I also have a third problem. #3(a) is that my best 60' time is a 2.24 which is suck-suck-suck a$$. I should be at 2.0 and there's your two tenths. #3 (b) is that, with me (300 lbs), the truck weighs in at 4150 with almost NO gasoline in the tank. Take the spare off and there you are at 4100. But the weight is all off the REAR of the truck. No traction, but still a heavy truck.

So, I have been shifting at 5000 and I can generally keep my E.T.'s (however slow they are) within .05 of each other on any given day. Six years of bracket racing a 5-spd also helps in the consistency dept.

Now that I have some better tires (Firehawk ss20's instead of the bald stockers), and the Lakewoods are dialed all the way in, I expect to pick up the 60' times a bit more. I also have the new 70mm TB and a Dynomax cat-back kit in place. I've been testing it on the urban interstates in ATL, and it feels like it's still making power up to about 5500. I am trying to get to Savannah, GA for a weekend on their 1/8th mile (sea level) since Atlanta Dragway closes in Nov and won't re-open til March. The 1/8th mi times should give me some hope for March. I'll let ya'll know.



Matt Barret
Dodge Dakota
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12/18/2001
12:50:40

RE: 4.7 1/4 times
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Mills, check out this thread I did a while back, it'll give you some good insight on what works, what does'nt, what breaks first, ect... :)
http://www.dodgedakota.net/boards/per/1391.html

Alex, you should have bought my slicks while I still had them, hee heeeee, Scared????????
No guts, no 14's !!!!! haa haa haaaa!!

Duner, you are da man, now, lets see twin turbo one for each bank of cylinders... hee hee

Matt Y2K-HEMI
'00 RC 4.7L 5spd 3.92 LSD
14.23 @ 94.49



alex
Dodge Dakota
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12/18/2001
13:45:45

RE: 4.7 1/4 times
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Scared? I'm just scared to walk home 70 miles from Atlanta Dragway to my house. Carrying the chunks of spider gear.

And I guess I'm scared of that $1200 bill for the axle rebuild since my warranty has "left the building." How much does that PowerTrax set-up cost? Aren't they supposed to be bullet-proof?

Yep, i shoulda bought your Hoosiers, but until I can beef up the diff or install a complete 8.75" rear, I figure it's just messin with fate. Now, if I can get into the 14's AND keep my crappy 2.30 short time, then we'll KNOW it's a fast truck, right?



Dr Q
DakotaEnthusiast
 User Profile


12/18/2001
14:14:10

RE: 4.7 1/4 times
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Hey Matt,
Have you gotten that truck on a dyno? I dyin' to see what that TB will do! It probobly won't matter til spring anyway-but a man can dream can't he?!
Q

Dr.Q
'01 Patriot Blue SLT RC 4.7 5sp 3.92 pegleg
0-60 @ 6.20sec.
1/4mi @ 14.75@97.1
Home Brew Airbox
K&N Drop In
Lakewood Traction Bars
Dremel TB Port and Polish

cudashoe
Dodge Dakota
JOIN HERE


6/11/2002
23:08:27

RE: 4.7 1/4 times
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Message:
Another old post with the same info.

Duner got over 6 tenths gain with his PCM.

Alex- you got .2 from your TB for $400.
for the same money you could have got .6!!!!!

But that billett looks good on your motor!!



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