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Michael
DakotaEnthusiast
 
9/06/2002
23:34:58
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 Subject: Important info HO cam & intake owners
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I found a little info for the HO cam and intake folks. Didn't know if anyone is aware of this, but the HO 4.7 for the Jeep uses special platium tip spark plugs that are only available through the dealer. This may help people experiencing pinging, knock or missing problems. I have my cams and intake, but haven't been able to install them cause of the damn rain! Shop is to messy to put the truck in there. Also I think I'll go ahead and order them before I do the install, just to be on the safe side.
Hope this info helps, I'll post more info on the plug type when I find the page again.
Thanks,
Michael
Z-Tube, R/T Rims, SSB Rear Disc Conversion, Alpine Head-Unit, Infinity Kappa Speakers, SilverStar Headlights, HO Cams & Intake in the box.
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Michael
DakotaEnthusiast
9/06/2002
23:38:42
|  RE: Important info HO cam & intake owners
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Here is the site, it mentions a rivet mounted on the tip of the plug. Again this is the factory setup for the HO 4.7 from the Jeep.
http://www.wjjeeps.com/engine.htm
Z-Tube, R/T Rims, SSB Rear Disc Conversion, Alpine Head-Unit, Infinity Kappa Speakers, SilverStar Headlights, HO Cams & Intake in the box.
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Michael
DakotaEnthusiast
9/06/2002
23:42:47
|  RE: Important info HO cam & intake owners
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One more question to ponder. Are the coils that are over the plugs different also? I will find out. If there are differences I might check on group buy prices for the coils and plugs. I will post as I get more info.
Z-Tube, R/T Rims, SSB Rear Disc Conversion, Alpine Head-Unit, Infinity Kappa Speakers, SilverStar Headlights, HO Cams & Intake in the box.
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Ed Halterman
Dodge Dakota
JOIN HERE
9/07/2002
14:23:45
|  RE: Important info HO cam & intake owners
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Man, please keep me posted, I put 2 sets in last week and we both ping like crazy since the cam install, and still trying to figure why mine loses power st 4000, and at 51, it won't go no mo, falls flat and I did put them in right. I'm sure the crap Ca gas doesen't help, but man, this ain't right.
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Ed Halterman
Dodge Dakota
JOIN HERE
9/07/2002
14:26:24
|  RE: Important info HO cam & intake owners
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I honestly think the truck is starving for fuel or leaning out, that's what it feels like. Wanna wait for good info here before I take it to my dealer, which btw, is a hot rodder like me so that ain't a prob :)
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CW
GenIII
9/07/2002
18:39:06
|  RE: Important info HO cam & intake owners
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Ed do you have access to a fuel pressure gauge? If you do you should have right on about 50psi all the time full throttle or not. That is kinda what I was thinking as well was fuel. Didn't accidently pinch the fuel line or anything like that?
2001 4.7 5sp 3.92 LSD
Ported 68mm TB, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" Z-tube, Roadmaster active suspention, Removed Third cat, Electric fan Convertion, HO cams, Robert shaw 180 therm, HO intake manifold.
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Ed Halterman
Dodge Dakota
JOIN HERE
9/07/2002
21:43:40
| RE: Important info HO cam & intake owners
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No, I don't, but I'm gonna take it in to my dealer next week to have him go over it with the scan tool to pay attention to the psi as well as the air/fuel ratio. He's cool, a hot rodder like me with a 12 sec Mustang 5.0 conv. Another thing, I noticed that the truck sounds a bit different as well since the cam swap, and once I hit 4000, the tone changes, like it's starving, choking, and at 5, it just gasps and doesen't move at all. Pinging comes if I crack the throttle, and at about 2500 rpm, light/moderate throttle, even with NOS octane boost, 89 gas, and with or without the JET 2 in. Another twist, so far, it seems like my mpg is un-affected by this. All we did with the fuel rails was un-bolt them and lift a bit to get the covers off, they didn't even come out of the holes all the way. If anyone wants to IM me with more info, my user is olznut.
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Michael
DakotaEnthusiast
9/08/2002
00:02:50
| RE: HO Sparkplugs & Coils
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The HO 4.7 from the Jeep does in fact use a special platinum tip spark plug that is only available through the dealer at this time. From what I gather there is a platinum rivet of some sort located at the tip. As soon as I get the part number for them I will post them as well as part numbers for the coils. I will be ordering mine monday. I will post details after the install as well as pics of the plugs.
If the damn rain ever lets up.
Michael
Z-Tube, R/T Rims, SSB Rear Disc Conversion, Alpine Head-Unit, Infinity Kappa Speakers, SilverStar Headlights, HO Cams & Intake in the box.
So what size flux capacitor you got in there?
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CW
GenIII
9/08/2002
12:22:51
| RE: Important info HO cam & intake owners
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Message:
I have all his mods and more from what I know and it never pings even on 87 octane. I even removed the clutch fan and it has gotten to 100+ here alot earlier this summer. Does kinda sound like it is starving for fuel.
2001 4.7 5sp 3.92 LSD
Ported 68mm TB, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" Z-tube, Roadmaster active suspention, Removed Third cat, Electric fan Convertion, HO cams, Robert shaw 180 therm, HO intake manifold.
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Michael
DakotaEnthusiast
9/08/2002
22:56:09
| RE: Important info HO cam & intake owners
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Message:
Z-Tube, R/T Rims, SSB Rear Disc Conversion, Alpine Head-Unit, Infinity Kappa Speakers, SilverStar Headlights, HO Cams & Intake in the box.
So what size flux capacitor you got in there?
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Chris
Dodge Dakota
JOIN HERE
9/09/2002
12:26:11
|  RE: Important info HO cam & intake owners
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I am currently running Bosc Platinums in my 4.7.... Should I change them out or is it OK since Jeep uses them as well?
Chris
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Michael
DakotaEnthusiast
9/09/2002
13:15:42
| RE: Important info HO cam & intake owners
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Message:
The Jeep does not use Bosch Platinum plugs, the HO 4.7 from the Jeep uses a specially designed platinum tip plug that is only currently available from the dealer. Here is tht part number Chrysler #SP0RC7PYCB4 and Champion #RC7PYCB4 once again these plugs are only currently available through the dealer.
I also found out that the ignition coils are the same for the HO and normal 4.7 .
Thanks,
Michael
PS. In case your wondering they cost $8.68 a piece. If anyone is interested I can get them for $6.68 a piece plus about $5.00 shipping through my guy over at mydodgeparts.com
Z-Tube, R/T Rims, SSB Rear Disc Conversion, Alpine Head-Unit, Infinity Kappa Speakers, SilverStar Headlights, HO Cams & Intake in the box.
So what size flux capacitor you got in there?
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Marty McFly
Dodge Dakota
JOIN HERE
9/09/2002
21:16:42
| RE: Important info HO cam & intake owners
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Flux Capacitor...........Fluxing
That's Heavy!
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Clevite 77
GenIII
9/09/2002
22:01:49
| RE: Important info HO cam & intake owners
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Message:
holy sh!t $8 per plug, they better last more than 30,000 miles
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Bernd
*GenIII*
9/10/2002
08:50:49
| RE: Important info HO cam & intake owners
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Message:
Psst...HO heads are designed slightly different. That would explain the plug difference. If you're using the factory heads, stick with the factory plugs.
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
14.55 @ 96.01mph
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Chris
Dodge Dakota
JOIN HERE
9/10/2002
08:59:17
| RE: Important info HO cam & intake owners
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Message:
But here is my questions then:
On the 4.7 (non HO) the FSM states to not use platinum plugs, WIth the same COILS as the 4.7, the 4.7 HO uses a platinum plug. Am I hurting my truck by running platinums? It did run much better with these than with other plugs and I would like to keep them if I am not hurting naything.
Chris
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Demon Dakota
DakotaEnthusiast
9/10/2002
10:03:24
| RE: Important info HO cam & intake owners
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Message:
IMHO, the plats are a total waste of money on the 4.7L in our Daks. When you put the HO Heads and HO Computer into a Dak, then you can put the platinum plugs in.
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Lab Rat
GenIII
9/10/2002
10:14:55
| RE: Important info HO cam & intake owners
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Just out of curiosity I stuck a set of Double Platinum plugs in my 4.7. No change in idle or driveability, period. I'm sure Harlow is happy for me, though.
Lawrence
Gibson Dual Sport, AirForce One air intake, Jet II, IAT, TPS, when are we gonna see some real parts??!!
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Michael
DakotaEnthusiast
9/10/2002
12:18:19
| RE: Important info HO cam & intake owners
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Message:
Look at the page I posted in the beginning. That is not your everyday original platinum tip plug. These are only available through chrysler. Call your dealer and ask for part numbers on the HO plugs, normal plugs and what the differences are. And think about the pinging issues that some people are having, that is why I posted this info. If that 4.7 HO runs well with those plugs then why shouldn't it improve on our 4.7. I would rather spend 6.28 a piece on them, than purchase an autolite, bosch 2+, 4+, or Irridium plugs.
HO heads are slightly different the valves are slightly larger along with some other changes, but the spark plug hole isn't one of the changes made.
Z-Tube, R/T Rims, SSB Rear Disc Conversion, Alpine Head-Unit, Infinity Kappa Speakers, SilverStar Headlights, HO Cams & Intake in the box.
So what size flux capacitor you got in there?
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Michael
DakotaEnthusiast
9/10/2002
12:22:56
| RE: Important info HO cam & intake owners
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Message:
And by the way I'm not looking for more power from those plugs, just increased driveability to try and correct issues that some others are experiencing.
Z-Tube, R/T Rims, SSB Rear Disc Conversion, Alpine Head-Unit, Infinity Kappa Speakers, SilverStar Headlights, HO Cams & Intake in the box.
So what size flux capacitor you got in there?
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Duner
Dodge Dakota
JOIN HERE
9/10/2002
13:37:42
| No Platinums Here
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Message:
I'll stick with my stock heat range 5224 Autolites for .99 apiece and just change them with every oil change.
If you want a better idle...... change the injectors.
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cudashoe
DakotaEnthusiast
9/10/2002
14:14:31
| RE: Important info HO cam & intake owners
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Message:
Yea Duner thats a good point and it brings a question - Are the injectors the same on the HO as the "regular" version of the 4.7?
2000 4.7 5- speed, 1989 Shelby #799 White
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Duner
Dodge Dakota
JOIN HERE
9/10/2002
14:22:46
| RE: Important info HO cam & intake owners
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Message:
Supposedly the HO has a different injector.
I would recommend the Bosch over the Siemans injectors. I think that they provide much better atomization - which equates to better idle and off-idle throttle response.
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CW
GenIII
9/10/2002
14:33:12
| RE: Important info HO cam & intake owners
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Message:
21# injectors for the 4.7 right? I still haven't found a concrete answer for this.
2001 4.7 5sp 3.92 LSD
Ported 68mm TB, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" Z-tube, Roadmaster active suspention, Removed Third cat, Electric fan Convertion, HO cams, Robert shaw 180 therm, HO intake manifold.
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Chris
Dodge Dakota
JOIN HERE
9/10/2002
14:42:30
| RE: Important info HO cam & intake owners
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Message:
How much for the injectors?
Chris
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Duner
Dodge Dakota
JOIN HERE
9/10/2002
14:43:38
| RE: Important info HO cam & intake owners
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Message:
Yes. I would go with the 21# injectors with the NA 4.7s.... unless you go with ported heads , big TB and one of those new cams that are coming out.
I'm running 24#ers and the PCM trims them just fine in closed loop. Perfect starting, idle and cruise. I ran them on my truck when it was NA - and with all the mods they worked about perfect here in Phoenix. The truck pulled past 6k without any problems. The 24#s were just a little too much for my truck at altitude when NA. A plug check showed them to be a bit on the rich side in open loop even at 3075'. The over-rich condition knocked the rpm range back to about 5600 rpms there.
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4x4Dak
Dodge Dakota
JOIN HERE
9/10/2002
15:48:56
| RE: Important info HO cam & intake owners
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Did anybody notice that the valve springs were different? Will this make any difference if you have the HO Cams?
01 QC 4x4 4.7L 5spd 3.92LS
HO Cams, Ported TB, IAT, Homebrew Intake, 180 stat
Gibson Exhaust dumped, Optimizer II(not worth the money), Bosch Platinums, 3" lift, 33" BFG AT’s
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Duner
Dodge Dakota
JOIN HERE
9/10/2002
16:31:42
| RE: Important info HO cam & intake owners
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The valve springs have a different part number, but they are supposedly the exact same spring. One is a Jeep number and the other is a Dodge number.
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Canucker
Dodge Dakota
JOIN HERE
9/10/2002
17:37:32
| RE: Important info HO cam & intake owners
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Message:
I picked this up somewhere:
4.7 valve springs are as follows:
6.69 coils
3.28 wire diameter
4.7 HO valve springs are as follows:
7.30 coils
4.77 wire diameter
I think DTO, but I'm not sure. Can anyone verify it?
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Duner
Dodge Dakota
JOIN HERE
9/10/2002
18:06:08
| You're Right!
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Message:
Good catch Canucker!
I pulled up the standard 4.7 vs HO page and there it was plain as day! Maybe the reports of the springs being the same were wrong? hehehe
All the specs are here:
http://www.wjjeeps.com/engine.htm
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cudashoe
DakotaEnthusiast
9/10/2002
18:09:53
| RE: Important info HO cam & intake owners
IP: Logged
Message:
OK what are the part number now. As it appears we should be using them as well.
2000 4.7 5- speed, 1989 Shelby #799 White
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