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Thatonekid
Dodge Dakota
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6/02/2002
14:50:01
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 Subject: KRC 4.7L cams....
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Has anyone tried these out yet?? If so, did you gain some decent power? How easy was the install, and would they be worth it???
thanks,
caleb B
02 RC
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CW
GenIII
6/02/2002
15:22:27
|  RE: KRC 4.7L cams....
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If you are talking about the HO cams. Yes, I have had mine for 4 months now. Yes they are worth it. Makes the 4.7 more fun to drive. Pretty straight forward install. I think Marty sells them with the chain wedge tool that is needed. I was the first person I know of to try them.
2001 4.7HO RC 5sp 3.92 LSD
Click on thumbnail for mods.
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MikeD
R/T
6/03/2002
20:04:11
|  RE: KRC 4.7L cams....
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CW I just got my cam and I talked my my uncle who is an old drag racer and he said he couldn't go under 2000 RPM's for breakin on his crane cam in his old fairlane...is there anything I need to do for break in on my cam?
~Mike~
'01 R/T
.512/.512 Kammer Cam, MP 2400 Stall, True Duals w/ Flowmaster 40 series, M-1 2bbl, F&B 52mm TB, Airaid, JBA headers, JBA 9mm wires, Kenne Bell Optimizer II, 160 t-stat, 3rd cat removed, Chrome R/T badges
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CW
GenIII
6/03/2002
20:11:33
| RE: KRC 4.7L cams....
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No the breakin like that is for flat tappet cams. The idea is to get the oid pressure up and more splash going to proporly lube up the new cam. You have a roller and it doesn't need anything special done. I would take it easy for the first couple hundred miles, so the computer can get adjusted and let things take a set. After that let it rip. What cam did you get with those killer heads? With my cams I did that and it works well.
2001 4.7HO RC 5sp 3.92 LSD
Click on thumbnail for mods.
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jjj
Dodge Dakota
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6/03/2002
23:41:19
| RE: KRC 4.7L cams....
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Actually the breakin is for any non-roller cam, hydralic or solid. Also it is so the cam and lifter wear in properly and the lifter rotates. Lifters have a cam shape ground into the bottom of them so they can rotate.
Has nothing to do with oil splash.
Jeff
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CW
GenIII
6/04/2002
09:29:16
| RE: KRC 4.7L cams....
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Yes that is what I said except that if done at idle it doesn't get enouph lube IE spash and it will wear the lobes off of the cam. Oil spash and pressure have everything to do with lube and wear in.
2001 4.7HO RC 5sp 3.92 LSD
Click on thumbnail for mods.
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MikeD
R/T
6/04/2002
13:09:08
| RE: KRC 4.7L cams....
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I got a .512/.512 lift degreed at 108.5 and I don't remember the duration off the top of my head.
And as I'm sure U have seen on another post I had recieved the wrong heads. Marty sent me the 1.92's non-ported instead of the 2.02 ported and polished. Even now w/ the 1.92's on its kickass I can't imagine what it'll be like w/ the bigger heads on.
~Mike~
'01 R/T
.512/.512 Kammer Cam, MP 2400 Stall, True Duals w/ Flowmaster 40 series, M-1 2bbl, F&B 52mm TB, Airaid, JBA headers, JBA 9mm wires, Kenne Bell Optimizer II, 160 t-stat, 3rd cat removed, Chrome R/T badges
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jjj
Dodge Dakota
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6/04/2002
18:37:22
| RE: KRC 4.7L cams....
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The main advantage to the oil splash is heat disappation more so than lubing. But yes the oil splash is important also.
Also vary rpm between 1500-3000 rpms without holding a steady speed.
Do not use synthetic oil during any breakin.
Jeff
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gsmarquis
Dodge Dakota
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6/04/2002
22:55:29
| RE: KRC 4.7L cams....
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so if i get ho cams....i need to change to a regular oil to break them in then switch back to a synth?
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knowatimean
Dodge Dakota
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6/04/2002
23:41:10
|  RE: KRC 4.7L cams....
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jeeezzzeee anybody got speel check
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jjj
Dodge Dakota
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6/05/2002
15:56:18
| RE: KRC 4.7L cams....
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Crane Cams rec. not to use sythetic for break in - even with roller cams. They would know more than me.
Spell check is for girlz :)
Jeff
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sandman
Dodge Dakota
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6/05/2002
19:56:15
|  RE: KRC 4.7L cams....
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Hey if you are installing OEM HO cams in your Dak all you have to do is follow the service manual. I would recomend useing Redline assembly lube. It is an EP lube that does not contain any solids so you do not have to replace filter and fluids after 20 minutes like you would with moly grease. You can stay with your synthetic oil. The instruction that crane gives out is for old OHV engines running cams that create alot of valve train stress(like the old fireball 300 Series)! The HO cams are not going to create any real stress on your valve train. The reason they used to recomend single weight non-synthetic was because single weight oils are pure lube w/o any viscosity improvers or and few detergents. Synthetics also had a bad rap for not allowing the parts to break in. The goal was to lube the parts for the first 20 minutes so detergents were not needed and VI's would only diminish the oil lube properties. The assembly lubes of the past had solid EP agents like moly in large amounts and in rather large particle sizes in them. These old EP lubes would plug up the oil filter. So after you broke in cam in at 2000 rpms for 20 minute you had to drain your oil and replace the filter. Your cam in the 4.7 is constantly bathed in oil. If you use Redline's assembly lube and you will not need to change oil or filter after cam installation. I would recomend that you do this about 50 miles before your next oil change. Install your cams drive easy over the weekend and then change your oil and filter after it is broke in. If you can not order Redline assembly lube in time Lucas oil additve works good as well. It also will not plug up filter. What you do not use on the cams can be added to crank case with the latter product. I have never had an over head cam fail in raceing or daily driver. P.S. Do not use plain oil or STP to lube the cam and follower!
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alex
Dodge Dakota
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6/06/2002
07:58:01
|  RE: KRC 4.7L cams....
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The Factory Service Manual says to use "clean engine oil."
??
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CW
GenIII
6/06/2002
09:22:34
| RE: KRC 4.7L cams....
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I had synthetic in my truck at the time so I just put in the cams and drove it. Hell I hit 5500 in the first 10 mins, not that that is recomened
2001 4.7HO RC 5sp 3.92 LSD
Click on thumbnail for mods.
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sandman
Dodge Dakota
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6/06/2002
21:16:36
| RE: KRC 4.7L cams....
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Alex I Just figured it out. I have rebuilt between 2184 to 3640 engine in the 12 years I was a tech. I was the engine guy. I was just glad that I was not the squeak, rattle, driveability guy!!! I have never had an engine come back due to defective labor. I have had some combacks due to parts failure due to defective materials/ concealed damage. I am not going to put $4.95 a quartx6 oil in my truck just to drain it out in 20 minutes. You are probably right that service manual says that. Remember the designers are assumeing that you are runing 5w30 Quaker State with a fram oil filter and changeing it at 7000 miles. WHile it is better to use fresh oil I have never damaged a cam yet!Even CW a current ASE certified tech at a Dodge dealership did not change his oil before the cam swap. Engine Warranty's will normaly pay $30.00 for coolant and oil. What type of oil and coolant do you think you are going to get for $30.00 at the dealership. You do not think that they are going to drain it after 20 minutes of running and refill? The tech. will also not run it for 20 minutes.
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alex
Dodge Dakota
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6/07/2002
08:22:35
| RE: KRC 4.7L cams....
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I should have clarified..... it says "lube the cam journals with clean engine oil...."
I wasn't suggesting rinsing out the motor with $29.94 (plus tax) worth of Mobil 1. That would be stupid. I was simply suggesting that I will probably not be using any sort of special break-in lube either. I will more than likely use "clean engine oil......"
Sorry for the confusion.
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CW
GenIII
6/07/2002
09:30:00
| RE: KRC 4.7L cams....
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Put a little oil on them and slap them in.:)
2001 4.7HO RC 5sp 3.92 LSD
Click on thumbnail for mods.
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jjj
Dodge Dakota
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6/09/2002
21:54:43
| RE: KRC 4.7L cams....
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I was really refering to older style engines.
CW's way works great for OHC's, I never did anything special with any of the 2.2, 2.5, 3.0 etc.
Jeff
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kerleyfries
Dodge Dakota
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6/11/2002
13:26:42
|  RE: KRC 4.7L cams....
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all i did is lube it up and stick it in. just that simple on the ohc's. no breakin in at all. just like cw i hit the motor as hard as it could go the minute those lil bugers where in there. they rock but my top end still sucks the big one. i have an automatic. that could be some of the reason. but the bottom end rocks the house. earlier on the thread i read that someone was saying that they have the ho intake. i was under the impression that the regular and ho intakes were the same. only diff between the motors were the cams and the exhaust on the heads. please correct me if i am wrong. would like to know because ol marty at krc says that us 4.7 guyses intakes suck badly. (or should i say dont suck). take it easy home doggs
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Gabriel
Dodge Dakota
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6/11/2002
13:39:10
| RE: KRC 4.7L cams....
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What do the acronyms KRC and HO stand for, who are the manufactures? What duration/lift cams are you all running?
What are the adverse effects of changing out cams. Generally when you change a motor part out you give up something for something else? (ie top-end for bottom-end.)
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kerleyfries
Dodge Dakota
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6/11/2002
13:58:38
| RE: KRC 4.7L cams....
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just go to krcperformance.com and look on the 4.7l page. it will tell you the advantages of the ho cams. nothing got worse nothing was sacrificed. its all good. especially for the money. i am ready for the custom grind so that i can get more top end. tired of my third gear and i even have 410's and a dana locker.
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Gabriel
Dodge Dakota
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6/11/2002
14:49:44
| RE: KRC 4.7L cams....
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If I go with a new set of cams for the 4.7 what else do I need to do in terms of mods to accomedate the new cam?
Anybody know how the new cam will affect the emisions on this vehicle. I am in Phoenix, AZ... we have some fairly strict emision standards... though not as strict as CA!
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Gabriel
Dodge Dakota
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6/11/2002
14:56:53
| RE: KRC 4.7L cams....
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Anyone got a photo, or link to a photo of the open valve train on the 4.7L showing what the cams look like and how they are placed?
Thanks,
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Duner
Dodge Dakota
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6/11/2002
15:59:05
| Engine Write-up
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http://dodgeram.org/tech/gas/Cammer/4_7_v8.html
If the cams will pass emissions in a 2002 Jeep, they will certainly pass the same standards in a Dakota.
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Gabriel
Dodge Dakota
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6/11/2002
16:02:48
| RE: KRC 4.7L cams....
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So basically, KRC performance is selling factory cams designed for the 2002 Jeep... or are they a custon grind based upon the 2002 Jeep cam design?
Are the valve cover gaskets silicon or are there actual gaskets?
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Duner
Dodge Dakota
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6/11/2002
16:06:47
| RE: KRC 4.7L cams....
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It's my understanding from reading online that they are using the selling the stock factory HO cams for the Jeep. It's quite possible that they may come out with a custom grind cam, but I don't think it's available at this time.
The valve cover gaskets are the silicon "O" ring type that are reusable.... No new gaskets required.
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Gabriel
Dodge Dakota
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6/11/2002
16:10:06
| RE: KRC 4.7L cams....
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Two questions:
What the @$%# does HO stand for?
Is the same cam in all the 2002 Jeep's with 4.7 motors? (dual overhead, not single right?)
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Rob
GenIII
6/11/2002
16:21:04
| RE: KRC 4.7L cams....
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HO = High Output
yes they are the exact same cams that are in the jeep
 180 thermostat,Z-Tube,Magnaflow exhaust,jet mod,,Auto lite 3923's,SS bumper cover,Stull full billet grill and shell,SS rollpan,Apc clear corners&euro tails,DJM 2inch control arms & 3 inch block
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Gabriel
Dodge Dakota
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6/11/2002
16:24:22
| RE: KRC 4.7L cams....
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Thanks for the curing my HO ignorance... I feel much better now :-)
Are these cams more expensive at the dealer... (oh wait what am I saying... every cost 4 times as much at the dealer)
Is there anyone else advertising cams for the 4.7 besides KRC performance?
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kerleyfries
Dodge Dakota
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6/11/2002
16:38:40
| RE: KRC 4.7L cams....
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if you go to the dealer they are going to charge you roughly 200 bucks a cam. krc gets a good deal. the diff between the cams has nothing to do with the lift its all in the duration. not enough to notice it at idle. but you saw the specs. it helped noticeably.
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alex
Dodge Dakota
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6/11/2002
16:43:25
| RE: KRC 4.7L cams....
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I paid $150 for the pair and that included shipping. That was from the dealer. The rest of the money that KRC is charging is for the special tool required for the timing chain tensioners and a well-illustrated installation manual. $200 is about as good a deal as you can get for that little package.
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