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kerleyfries
Dodge Dakota
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9/25/2003
10:32:25
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 Subject: 4.7 computers \H.O.
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FYI- i have a 03 reg cab 4.7 5spd dak. to make a long story short i left the bottle heater on with a 150 shot and made a 5000 dollar booboo.... i replaced this motor with a 03 grand cherokee H.O. short block. little did i know that in 03 dodge changed the pcm to a NGC (next generation controller). with this in mind they also changed the crankshaft and camshaft tone rings. obviously the new controller has different mapping for the new tone rings. the normal 4.7 in all dodge and jeeps have 16 teeth on the crankshaft with the exception of 2003 dakotas (only) which have 32. do not make the same mistake that i did. i had to tear down the brand new H.O short block to swap tone rings on the crank. now if you have 02 daks and older then you will have no problems with using this short block. hopefully this information is useful to someone other than me.
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kerleyfries
Dodge Dakota
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9/25/2003
10:41:07
|  RE: 4.7 computers \H.O.
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by the way i will keep you posted if interested on the mods that i have done. its running now but i am having injector problems i believe. dont buy used injectors. spend the money.... my mods are as follows: H.O. short block which includes (forged crank, forged rods, trimetal bearings, floating wristpins and i believe that the pistons (9:7-1) are forged as well. since i have had it apart they look forged so i am assuming that they are.), heads have been milled and ported (232 cfm @500 lift), krc's 218 camshaft kit, ported tb, h.o. intake, jba headers, 4:10's, true duals with x-pipe and mac mufflers. for the most part i thinks thats it. it should scream soon. bye bye RT's, stangs, camaros..... you name it.
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.alex.
Dodge Dakota
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9/25/2003
11:34:47
| RE: 4.7 computers \H.O.
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Excellent info....
SOunds like you've done a "holy sh!t" buildup. Can't wait to hear how it runs and see some dyno graphs! How is it idling with the 218 cams and the high flow heads? I added some 212/218 cams from Marty and now it either idles at 500 rpm and stalls or else it idles at 1200 rpm. No in-betweens.....
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STS
Dodge Dakota
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9/25/2003
17:06:58
| RE: 4.7 computers \H.O.
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Are you using a comp cam?
Also, Why would Dodge be using a NGC and not Jeep?
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kicker01
Dodge Dakota
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9/25/2003
17:47:40
| RE: 4.7 computers \H.O.
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Again thats some good info! How was it running with
the juice before it blew up? Got any times/ET's on it?
Definately let us know on your progress!
Steve
'01 rc 4.7 5spd
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kerleyfries
Dodge Dakota
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9/26/2003
14:59:49
|  RE: 4.7 computers \H.O.
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the cams that i bought from marty came from crane. yes i am positive on the jeep controller. my friend is the head dodge tech and he just got through the training for 2003. i know from first hand obviously that jeep didnt change anything because the h.o. that i bought was an 03 and nothing changed. as far as the holy sh:t build up (yes it was). i now know this motor better than any dodge tech in the world. the torque patterns and settings are ingraved in my memory for the rest of my years. as far as the 218's go the idle is smooth you can barely notice if any. to the untrained ear you wouldnt have a clue. i do know this and that is that my truck is much louder than before. much more potent of a sound. very deep. right now, like i said before i am having to work out the kinks. my controller is spitting out two misfires at me. i have determined that its not the igniters or anything ignition related. when i pull ignition from those two cylinders the idle doesnt change. same goes for unplugging the injectors to those cylinders. my compression is outstanding. so right now i am stumped. ive replaced the injectors so i know that those are not the problem. any ideas would be helpful right now. it falls on its face cause two cylinders are not operating properly. i hope to get this running great for all you guys out there that havent had to go this far yet.
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kerleyfries
Dodge Dakota
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9/26/2003
15:09:24
|  RE: 4.7 computers \H.O.
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i forgot to mention my previous times. the first time i ran it two things were done: exhaust and intake. i ran a 14.8003 at 92mph. 2.3 60 fter's.. with a 100 shot i ran a 13.50 at 99 mph with a 2.1 60 fter. keep in my that i was running 275 45 r17 z rated (rt's) street tires. i didnt track for sh;t. 1st 2nd and 3rd burnt hard. i lost at least 1/2 a second. the 4.7 is amazing with nitrous. i cant tell how fast the 150 shot was. all i know is that it was pointless to race with the 150. i went no where fast. the only time i ever got beat was by a c-5 with a 150 shot. he pulled me by about 2 1/2 cars. he didnt know what to think and he had to spray on me to win. well enough talking. fyi: all 2003 4.7l come stock with an h.o. intake now. so if your plannin on buying newer they run better. take care
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.alex.
Dodge Dakota
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9/26/2003
15:44:03
| RE: 4.7 computers \H.O.
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What throttlebody are you using?
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steve93gc318
Dodge Dakota
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9/26/2003
16:58:27
| RE: 4.7 computers \H.O.
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which 2 cylinders are dead?
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kerleyfries
Dodge Dakota
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9/26/2003
18:42:17
| RE: 4.7 computers \H.O.
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a 70mm tb. as far as the cylinders go. i just took it to my buddy's shop and there were no more misfires. but we did discover that the tps at wot was only 75%. i believe that at full throttle all tps should be 100%. this would explain the bogging that i am experiencing i think. now only to find out why. is it my computer not reading the cams? this is a new kind of computer you know. so maybe this one doesnt like mods and will require programming. the only way to find out now is to put my stock cams back in to see if it corrects that. to me that would be the only thing mechanically that would be limiting it from running correctly now. i have traced every damn thing on it. p.s. i have spent too much money as of now. this is getting old. i have been out of comission now for 4 months. having to borrow others cars for my dumbass mistakes. yes i am throwing a pity party for myself and your invited.........
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kicker01
Dodge Dakota
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9/26/2003
19:56:13
| RE: 4.7 computers \H.O.
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your pcm might be freakin out due to the 218 cams. i think i remember marty telling me that you needed a PCM flash in order to run correctly with those cams.
btw, check out my junk and tell me what you think!
http://www.geocities.com/surfdog1/baddak.html
Steve
'01 rc 4.7 5spd
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kerleyfries
Dodge Dakota
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9/27/2003
15:39:58
|  RE: 4.7 computers \H.O.
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your torque was best at 299.94 and hp was only 214.00??? is this rear wheel?? hp low?? did your times read 13 something. i cant read the slip. its to faded. 60 fters were 1. something. if so thats pretty darn good... being how you have a 2001 you can do more than me as far as your computer goes. i used to have a 2001 reg cab auto with 410's ho cams iat adj ho intake ported tb true duals hpipe and flows 2 1/2 inch exhaust. nothing could beat that damn truck out of the hole. but i bought this truck cause it had a 5spd. yes it was much faster stock than my 01 but i obviously cant do crap to this one.. gtg kerley
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kicker01
Dodge Dakota
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9/27/2003
19:29:43
| RE: 4.7 computers \H.O.
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those are true rwhp and tq numbers. that slip reads 15.1@90 i think. Although I have a 2001, there still isnt much available for my PCM. My best bet is probably a KeneBell flash, but i wana see if anything else comes available soon. Im also running stock exhaust manifolds and precats so I know thats a big restriction there.
Cya,
Steve
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kerleyfries
Dodge Dakota
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9/28/2003
02:05:22
| RE: 4.7 computers \H.O.
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is yours a 5pd? if you take off the cats and run true duals with headers holy moly you will be very pleased. at first the computer will not know what in the hell happened. once it learns the settings then its crunch time. i have custom 2 1/2 true duals with an xpipe that a exhaust company makes here in Edmond, Oklahoma. xpipe is about 70 bucks here. not a bad price. the progress on my truck....... i took the 218 cams out and put it back to stock with just the heads and big springs. it immediately ran better. still bogged a little. i have been driving all night. the more i drive the more i like the results. dude, its fast. those 410's are crazy. i shift every second. im in 3rd before anyone shifts outta 1st. thats nuts. top end pulls very hard. those heads and short block made a hell of a difference. but i am afraid that i will need a program built if i want to run those 218's. cant wait for the kenne bell next. hello big time.... gtg
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rgathright
Dodge Dakota
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11/04/2004
09:33:33
| RE: 4.7 computers \H.O.
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Update us kerleyfries on how your truck is running. Great info so far!
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