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SLF Dak
Dodge Dakota
JOIN HERE
9/08/2002
04:05:26
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 Subject: KRC 4.7L/ 218 cams???
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http://www.krcperformance.com/newcontent/47racecams.html
Anyone know about these????
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Cotharyus
GenIII
 
9/08/2002
08:21:19
|  RE: KRC 4.7L/ 218 cams???
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Yea. They're great cams if you want to run the engine at 4000+ rpms. They're made for racing, as stated. High rpm launch, and keep the rpm's up, they make an incredible amount of HP. If you want to do any street driving or have any low end, stay away from them. This is advice I got from Marty himself.
2001 QC 4x4, 4.7,5 spd, LSD, K&N Gen II Intake, Robert Shaw 180 Stat
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CW
GenIII
9/08/2002
12:47:58
|  RE: KRC 4.7L/ 218 cams???
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I don't care what anyone says 6 more degrees of duration at .050" will not move the power band up 2000 RPM. Those cams will only be good for about a peak in the 5500 range.
I have a 318 with a cam that is about 215 degrees at .050" and it has good low end and the peak HP is right at 5300 RPM. That is with heads that don't flow nearly as well as the 4.7 stockers.
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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CW
GenIII
9/08/2002
12:50:38
| RE: KRC 4.7L/ 218 cams???
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Message:
Oh yeah he says the HO cams have a 111 lobe separation. Every calcualtion I can run using the FSM specs gives a 116 degree lobe separation. That makes way more sence for a stock emissions cam.
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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CW
GenIII
9/08/2002
12:54:25
| RE: KRC 4.7L/ 218 cams???
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Message:
Cotharyas: If you read a little closer it says "The other item we are working on at the moment are race camshafts for the 4.7 L" meaning other than the ones listed above.
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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CW
GenIII
9/08/2002
18:44:04
| RE: KRC 4.7L/ 218 cams???
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Message:
Alright. I talked to Marty at KRC. Said is is going to introduce the street cams. The second set on that page before the race cams. It was going to be the other way around at first but the race cams are taking alot of work to the heads and the PCM. The second set of cams are definitely steet cams. I still say they will make power into the 5500 range. Good streetable motor.
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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Canucker
Dodge Dakota
JOIN HERE
9/09/2002
11:22:22
|  RE: KRC 4.7L/ 218 cams???
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They sound like pretty sweet cams .. I can't wait to see they dyno results.
... now where'd I put that extra $599 USD ... I know I left it around here somewhere ...
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Art
Dodge Dakota
JOIN HERE
9/10/2002
01:15:16
| RE: KRC 4.7L/ 218 cams???
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Message:
He has got to get the price way down on those cams,like come on 600 bucks US for cams?Thats about a 1000 bucks for us up here in Canada and that is too much for cams
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Texas Todd
Dodge Dakota
JOIN HERE
9/10/2002
09:28:14
| RE: KRC 4.7L/ 218 cams???
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How much more power will they make than my stock HO cams from mopar, that cost $110 new? 5 times the power?
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yates-in-DE
GenIII
9/10/2002
09:47:15
| RE: KRC 4.7L/ 218 cams???
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Message:
DITTO TODD,
I don't mind spending money on good equipment, but man it's got to be justified. I hope thats a type-0, and that is the price for the new RACE cams, not the good streetable ones.
Later,
MyVW Killer
Lynn
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alex
Dodge Dakota
JOIN HERE
9/10/2002
09:54:41
|  RE: KRC 4.7L/ 218 cams???
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If you want to get nit-picky.... they just might make 5 times the power. If you consider that the HO cams made an average of about 5 horsepower across the board, then yes, these cams should make about 25 more horsepower.
And it's not just the cams that will run $599. You are having to replace the valve springs, lash caps, and valve keepers too. Not just the bumpsticks.
And while a set of cams will net you some more hp, the combination of new cams & valve springs, mildly ported heads, and headers can yield gains in the 50-60 hp range depending on the design of the cams. And let's not forget the intake manifold....... there is apparently (according to Marty) a LOT to be gained in that department.
Once you pull the valve covers, you have to start thinking about whole SYSTEMS, not just cheap-o bolt on stuff. Otherwise you are more than likely going to start adding things that totally negate other things you have already done....
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Canucker
Dodge Dakota
JOIN HERE
9/10/2002
11:12:27
| RE: KRC 4.7L/ 218 cams???
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Message:
Well said Alex.
$599 is a little steep for me though, mostly because of the exchange but it really isn't fair comparing these custom grind cams and valve springs and whatever else he is including in the package to the HO cams. .. I mean the HO cams are dirt cheap .. I wouldn't be suprised if they decide to up the price on them soon.
I'd be willing to pay $500 USD for these cams, if the shipping was included or something. But what the heck ... I can't afford anything else for another year yet anyhow, so I'll just settle for the HO equipment for now.
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alex
Dodge Dakota
JOIN HERE
9/10/2002
11:23:38
| RE: KRC 4.7L/ 218 cams???
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It's all a matter of how fast you want to go.
You can never exceed the speed of your wallet.
A Mastercard can cut a good two seconds off your 1/4 mile time..........
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alex
Dodge Dakota
JOIN HERE
9/10/2002
17:04:21
| RE: KRC 4.7L/ 218 cams???
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Message:
Just by doing a little price shopping, I checked Hughes site. The middle of the road on a Magnum roller cam is about $262 for a reground core. if you don't have originals to send in, they are like $350 per cam. Two of those costs $700.
So let's say Marty is selling these custom 218 models for $250 per cam.
Hughes lists valve springs at anywhere from $40 to $90 for a set of 16 depending on what size & how they perform. So let's say we need $40 worth of valve springs.
So now, we're at $500(cams) and $40(springs).
With new springs, we'll need new machined valve lash caps and new valve-stem keepers. Prolly another $30-$40 worth of stuff.
Now we're at about $580 for our ball park figure. Then Marty is offering these for $599.
That means that Marty gets to take home $19 for his effort in developing, designing, dyno'iing, etc. We'll have to see what kind of power gains these sticks will produce, and whether it's worth the $$ we've described above, but this is just food for thought.
$19....... damn.
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Canucker
Dodge Dakota
JOIN HERE
9/10/2002
17:40:26
| RE: KRC 4.7L/ 218 cams???
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Message:
yeah .. it just sucks that we have to buy two and R/T guys only have to buy one. ... I think that's where we get worked.
I'm sure I'll buy them or some other cam set someday ... just not anytime soon. At least have to wait until after I get married and a house!
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Chipster
Dodge Dakota
JOIN HERE
9/10/2002
18:48:30
| RE: KRC 4.7L/ 218 cams???
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Message:
Where do you guys think Marty is getting his
blank cams from? He probably has to buy
new stock cams from Chrysler and that is not
cheap.
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Lab Rat
GenIII
9/10/2002
19:09:15
| RE: KRC 4.7L/ 218 cams???
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Not cheap?? I think $150 for the pair of HO cams isn't bad at all.
Gibson Dual Sport, AirForce One air intake, Jet II, IAT, TPS, when are we gonna see some real parts??!!
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CW
GenIII
9/10/2002
19:34:46
| RE: KRC 4.7L/ 218 cams???
IP: Logged
Message:
I was informed by Marty himself that he used new cam cores. These are all new cams not reground stockers or HOs. The cores cost double of what the stock HO cams cost.
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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Art
Dodge Dakota
JOIN HERE
9/10/2002
21:07:25
| RE: KRC 4.7L/ 218 cams???
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Message:
What do you mean new cam cores?You mean a new unmachined cam or these were made from scratch?I have not seen one of these cams yet and heard that the lobes are pinned,is this true?If you can get a raw stock cam unmachined,I cant see why it would cost double?Doesnt make sense
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CW
GenIII
9/11/2002
09:36:01
| RE: KRC 4.7L/ 218 cams???
IP: Logged
Message:
The factory doesn't use raw unmachined cams. They start with a hollow tube then press already machined lobes onto the tubes into the proper position. I am assuming Marty had someone make the UGL (unground Lobe) cams to machine I never asked. He said "I have never considered
regrinding stock cores due to the pricing sitting at $900 after all is done" and "No I did not use stock cam cores"
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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rtdkota
R/T
9/11/2002
20:43:42
| RE: KRC 4.7L/ 218 cams???
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Message:
I am working with someone on a set of 4.7L cams... stay tuned... he *tuned, I made a funny*
FYI-- If you want a regrind, I can do regrinds for $200 on a 3.9/5.2/5.9-- you provide the core. I can do a regrind on a stock or HO cam set for $300.00 a pair.
New 4.7L Cams are coming...
Sam
RTDKOTA
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CW
GenIII
9/11/2002
21:52:24
| RE: KRC 4.7L/ 218 cams???
IP: Logged
Message:
Good to know Sam. I am thinking it may be a cost effective way to go but since there are actualy people working on the cams I will wait and see what seems to work.
Personaly I think that the lift on the exhaust side could be raised quite a bit. I have a old head and the exhaust side can go about as far as needed. May be that the exhaust port stalls on the head at higher lifts. I don't have acess to that data.
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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