| From | Message |
GraphiteDak
GenIII
 
12/21/2006
20:26:20
|
 Subject: RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
Yeah I forgot about the open loop on WOT.
But again, it could just be adding a predetermined amount, to the adjusted tables.
I know on part throttle it defenitely made a difference once I drove it another day.
It could also be the timing that also asjusts with learning as well. Who knows. Only another romp at the track would tell.
|
TexasTodd
Dodge Dakota
JOIN HERE
12/22/2006
04:45:37
|  RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
Graphite..
I like your ingenuity, we're gonna start calling you McQiver.
But, I distintly remember that my SC's tuner does not have an adjustment for the rev limiter. What's up with that?
Todd
|
GraphiteDak
GenIII
12/22/2006
21:20:28
| RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
McGeyver you mean?
People have called me that since I can remember!
The SC doesn't have any SELECTION for RPM rev limit adjustments, but stock I know it is just over 6k and with the SC even on the 87 octane level I use, it was moved to over 6500. I didn't know it was 7k until now!
|
ZenDak
Dodge Dakota
JOIN HERE
12/31/2006
00:01:45
| RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
Out of curiosity,,,,and for ya'lls opinion -
Suppose some of us Dak owners here were pretty dang good programmers,,,,and one of us could write a robust, and user tune-able program to run our 4.7's '00+. That we could stuff into a lil' industrial computer,,running a real-time OS or whatever. We could go laptop,,,but I like the idea of a new stand alone unit tucked away somewhere with a slick hmi. All industrial grade stuff here. (nothing really too exotic either = cheap/free)
Suppose someone could do ALL that,,,only they needed alot of help from others (you guys) with info need to run a full working Dakota '00+ (I say this only cause mine is an '01 4.7 auto :). All the necessary logic to run the motor (I do mean all of it!).
Or maybe there's some tuner with practically no interface,,,if someone could program a slick'r custom one,,the programmer of your dream basically...
..what would you pay for it?
...or maybe it could become the linux of 4.7 tuning. Then spill over into the 3.7's, and 5.7's shortly after - I mean how hard could it be once you have one engine/tranny done?..badass freeware for your Dak.! - no guarantees on it of course!
--selling a programming guide would be cool too
-long ramble short, I'd be interested in any effort under way, and wouldn't mind trying to help in the programming dept.. Assuming I could.
peeps here could try it out and contribute, get a dd.com 'certification'. be cool.
ya
- and you jive turkeys have a funky ny's!
|
Josh
Dodge Dakota
JOIN HERE
12/31/2006
00:50:31
| RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
Yea it says it will adjust it to superchips settings for the rev and speed limiter mine will rev over 6000 with the settings .
|
Benjamin
Dodge Dakota
JOIN HERE
12/31/2006
18:33:27
| RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
So what? the 4.7 is out of it's torque and power range past 5.5k. What's the purpose of pulling past your power curve? Kinda stupid I think. I have 2 vehicles with the 4.7, a dakota and a ram. 5.2 IS noticeably torquier. 4.7 seems a lot smoother. with a 4.7, going PAST 5.5k actually LOWERS your 0-60 time
|
Manny
Dodge Dakota
JOIN HERE
12/31/2006
23:54:04
| RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
http://www.wjjeeps.com/misc/curve_47.jpg
|
Chris G.
Dodge Dakota
JOIN HERE
1/01/2007
02:51:14
| RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
That back's Benjamin up....don't you see them sharply fall? just like he was telling you guys. 7k rpms is 1.5k PAST any salvageable power whatsoever.
|
Kowalski
GenIII
1/01/2007
09:59:08
| RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
Let's discuss that graph, gentlemen - it shows that power was only measured to about 5400; and that by thta point, the 4.7 had lost (WOW) a whopping 15 of its 235 peak horsepower. Now that is for a stock motor. For starters, we want to shift a little above max power for max acceleration; so that we will still be well into the meat of the power band when we hit the next gear. Now what kinds of things will affect the power band ? Well, cam and intake choice for 2 big ones. Two things Graphite Dak has modified in his truck (this thread is about his intake mods). While he doesn't seem to think the HO cam makes much difference in an '03 up, I'm not so sure - others have felt differently. I'd say the jury is still out on that. Now, what are the basic principles for more power through hotrodding ? How about more compression, and better air flow; including the benefits of moving more air at higher revs. It's the latter that GD is experimenting with, and graciously sharing what he's learning; and you guys want to say it means nothing because of some graph on a stock motor set up ? Good thing you weren't an influence when people were learning how to hot rod the old style motors with bigger cams and high rise intakes. It should also be noticed that the graph you refer to does not have its baseline at zero, so it looks like power is dropping faster than it really is if you don't understand that. Modifications will affect power graphs; and to say a graph of a motor set up differently from one we are discussing is what we should consider is BS. Unfortunately we don't have a dyno of his changes, or we could see exactly how and where its made a difference; but he's aware it needs fine tuning - and is continually sharing great info from his experiments with us. I don't think his work deserves to be called "kinda stupid".
I say three cheers for GD's efforts !
Lead, follow, or get out of the way
|
trukguy
Dodge Dakota
JOIN HERE
1/01/2007
14:35:13
| RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
that posted dyno chart thing isn't real anyway. you guys that dont try stuff will always have slow trucks. i think benjamin is kinda stupid for putting GD down for trying stuff. how many of you guys have actually gone down the track in your trucks? i thought so.
|
Chris G.
Dodge Dakota
JOIN HERE
1/01/2007
15:27:55
| RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
I saw videos of about 4 Daks with the 4.7. Some had superchips, etc. I'm still wondering why my 5.2 is quicker and faster top end than the 4.7's. Those 4.7's were out of breath past 5.5. They basically stopped accelerating (being sarcastic). If you guys want a truck that's fast and truly meant for bashing, buy a HEMI Ram. 2nd to only the new Toyota Tundra coming out.
|
Will
Dodge Dakota
JOIN HERE
1/01/2007
18:03:35
| RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
And when the new Tundra comes out, my Dakota is going away.
|
4.7onN20
Dodge Dakota
JOIN HERE
1/01/2007
18:24:50
| RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
LOL, Having a different intake is goint to completely change the powerband not just change the shift points. Plus as kowalski said that dyno chart has nothing to do with graphites modded engine. The heads flow well the cam is larger than stock and the exhaust is modded the only thing holding the motor in the lower powerband that I can tell is the intake.
|
TexasTodd
Dodge Dakota
JOIN HERE
1/02/2007
03:03:17
|  RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
That was for a 4.7, at the crank!!
My 01 4.7 manual, has never had the heads off, is normally aspirated,
and my dyno was 229 RWHP
and 300 RWTQ!!
At the REAR WHEEL!!!
Dynoed the way I drive it, no short belt, etc.
Add 1 HP and 1 TQ when I took the ari cleaner out, but that's not how I drive it.
|
GraphiteDak
GenIII
1/03/2007
00:29:13
| RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
Thanks Kowalski and guys.
Obviously all I was comparing the intake mod to was that fact that it OBVIOUSLY made more power above 5,500 because where it once practically came to a dead stop at 6,300 it now goes right by that to 7,000
Also, ppl with the 2000 to 2002 intakes will have less top end than my stock 2003 intake as it was supposed to breath better than the 2000 to 2002.
Kowalski, I got my stock cams out of my attic, and just took a micrometer to them and compared to the 2000 cams from the 2000 motor I have and they appear the same lift.
Someehere I heard that MAYBE they changed the cams in 2003 like they did the intake and TB so I thought maybe. But I guess not.
I bet if I got the 212 cams with the hacked intake it would be a little more wicked at the upper RPM's.
But honestly, I will most likely stick my STOCK 2003 intake back on because i tow with it. Unless that is I can trade my Toy Hauler for a used motor home and pull a trailer with that. Then it's open season with my Dakota again!
|
TexasTodd
Dodge Dakota
JOIN HERE
1/04/2007
04:05:15
|  RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
Comparing the graphs, I also realize that this stock motor has much different curves of the graphs than my lightly modded HO cammed 4.7.
My torque curve climbs quicker, then gets flat for over 1500, before peaking some more, not just a gradual incline.
|
clint282cc
Dodge Dakota
JOIN HERE
1/04/2007
19:09:16
| RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
i think it is badass what GD is doin. thats the kinda of stuff i wish i knew how to do. hey GD, why dont you just fab up an intake? or dosent anyone make one? i almost wish my truck was a 4.7 just so i could play with that stuff too. a looooong time ago i posted about that 5.9 vs. 4.7 and i thought ppl were stupid when they said the 4.7 was better cause i thought that since the 5.9 is bigger it had more potential. but i didnt know that the 4.7 had over head cams and how advanced it was over the 5.9 at the time. now im almost converted to thinkin the 4.7 is better.
|
GraphiteDak
GenIII
1/04/2007
21:17:24
| RE: The 4.7 is now reving to 7k!
IP: Logged
Message:
The 5.9 and 4.7 is kinda apples to oranges.
But the 4.7 performs pretty well. With a 5 speed stick they seem to handle a 5.9 R/T pretty well.
I do dream of making a home made intake. It is just scary messing so much with a truck that I TOW 200 miles here and there when I need to!
I am about to put my Toy Hauler up for sale and buy a used motorhome instead. That way it's easier to get around and I can just tow my quads on a small trailer behind it.
Then the Gloves can come off again on the Dakota mods!!!
I also need to wait until I get a few bills caught up again and maybe next summer I get something done on that 4.7 Duster project of mine!
|
| | <<Original Post <<Previous Page P 2 |
|
Post a reply to this message:
Username Registration: Optional
All visitors are allowed to post messages
|
