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Question about a few cams #1440702
05/22/13 11:01 PM
05/22/13 11:01 PM
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Jarrettsville, MD
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tywebb2 Offline OP
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The following cams were recommended to me and I am wondering the possible advantages/disadvantages of each compared against each other. All three are hydraulics and my existing 509 cam specs as well.

Hughes 3237bl, 540/548, 232/237 @050, 110 ls
Hughes 3742bl, 548/592, 237/242 @050, 108 ls
Racer brown ssh44, 510/510, 242/242 @050
Mopar 509, 509/509, 248/248 @050, 108

I noticed the Hughes would give me more lift for the same or less duration compared to the racer brown. Also the Hughes cams are higher lift on the exhaust than the intake and RB recommended 1.6 rockers on the intake and 1.5 on the exhaust with his cam. So when it comes to lift it appears the philosophies are opposite?


'72 440 Cuda
11.673 @ 115.91 w/1.663 60'
Re: Question about a few cams [Re: tywebb2] #1440703
05/23/13 12:13 AM
05/23/13 12:13 AM
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junction city oregon
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viperblue72 Offline
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The more lift per given duration suggests the cam has more aggressive ramps( steeper). More lift is generally better, yes, but on the exhaust side it doesn't always help to scavenge even more if the exhaust ports and headers are efficient. I doubt you would see much change running a 1.5 rocker on the exhaust.

Re: Question about a few cams [Re: viperblue72] #1440704
05/23/13 12:23 AM
05/23/13 12:23 AM
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junction city oregon
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viperblue72 Offline
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I don't think there is anything to be gained for you by going to a different hydraulic camshaft. Unless you are looking for low speed driveability. Any gain would be very marginal.
Porting your heads will probably get you 3 tenths. Also add some 1.6 rockers would help. Want even more? Go to a solid roller camshaft.

Re: Question about a few cams [Re: viperblue72] #1440705
05/23/13 12:44 AM
05/23/13 12:44 AM
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Jarrettsville, MD
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tywebb2 Offline OP
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I am leaning toward pulling the engine to have it freshened up later this year. Have main studs installed, block zero decked, and either install new lightweight rods and pistons or just cut bigger reliefs in my existing trw's to get more ptv clearance and install arp bolts in existing ly rods. Then mill heads to get to 10.5:1 compression and do some mild port work. All stuff I regret not doing the first time around.

I just figured while I was at it I would look into cams to see if there was something that would give me better performance than the 509 and be a little more street friendly with my setup.


'72 440 Cuda
11.673 @ 115.91 w/1.663 60'
Re: Question about a few cams [Re: tywebb2] #1440706
05/23/13 12:44 AM
05/23/13 12:44 AM
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loaderpro Offline
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Agree with Viper on this one, and I never did like split duration cams in a wedge, goes against the grain. I have played with alot of cams, and for hyds the 509 or the Racer Brown are equal.

7715919-pomona.jpg (68 downloads)
Re: Question about a few cams [Re: loaderpro] #1440707
05/23/13 02:51 AM
05/23/13 02:51 AM
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ahy Offline
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I think the main gain with the newer faster cams would be drivability from less duration... with more lift to help maintain power. How much the extra lift will help depends on your heads. Stock iron heads stall out at fairly low lifts. Aftermarket or ported iron heads respond better to more lift.

If you go that route, stiffer springs may be needed to keep things under control depending on what you are starting with. Also careful attention to cam break in and high zinc oil to keep it happy. FWIW I run a solid flat tappet MM lobe in a 496. The ramps are as aggressive as possible (.55 lift, 243@.050 duration) and I love it.

Re: Question about a few cams [Re: tywebb2] #1440708
05/23/13 11:41 AM
05/23/13 11:41 AM
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justinp61 Offline
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I really likes the Hughes 3742 in my 340, it ran 11.61 at 3240# with 3.91 gears. I had a 509 in the 440 in my Road Runner years ago and hated it.

Re: Question about a few cams [Re: justinp61] #1440709
05/23/13 12:27 PM
05/23/13 12:27 PM
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Balt. Md
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383man Offline
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You could do what I did. I called Dwayne Porter and had a custom ground cam for my specific combo. He speced me a nice solid flat tappet and I love it. Ron

Re: Question about a few cams [Re: 383man] #1440710
05/23/13 12:32 PM
05/23/13 12:32 PM
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Val-haul-ass... eventually
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BradH Offline
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Quote:

You could do what I did. I called Dwayne Porter and had a custom ground cam for my specific combo. He speced me a nice solid flat tappet and I love it. Ron



And let Dwayne do any freshen-up (valve job, etc.) work on your heads while you're at it.

Re: Question about a few cams [Re: tywebb2] #1440711
05/23/13 12:49 PM
05/23/13 12:49 PM
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MD
Kevins493 Offline
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Before you take it apart, where is that .509 cam installed? I found some gains with it 4* advanced. If your compression is below about 10:1 the gains by doing that will be a little more. Also, what do you have for a converter again? I can't seem to remember.

Re: Question about a few cams [Re: Kevins493] #1440712
05/23/13 01:58 PM
05/23/13 01:58 PM
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Jarrettsville, MD
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tywebb2 Offline OP
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My 509 cam is in at 102 and that helped out a lot. I did that a few years ago per the recommendation here. I have a 10" turbo action 3600 stall vert. Tried an 8" ATI in it previously and didn't really gain much except making the car less fun to drive in the street. I always thought about a 9.5" dynamic but never pulled the trigger after the lack of positive change with the 8".

Good suggestion....I will talk to Dwayne again about cams and see what he says.

Question..wouldn't it be better to run the hughes cam which has more lift with less duration when compared to the racer brown where he is suggesting to use 1.6 intake rockers to get additional lift from his cam? Just seems like it would be easier to stick with the 1.5's I already have and go with the cam that has more lift at a given duration?


'72 440 Cuda
11.673 @ 115.91 w/1.663 60'
Re: Question about a few cams [Re: tywebb2] #1440713
05/23/13 03:09 PM
05/23/13 03:09 PM
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Kevins493 Offline
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Car needs about 4200 stall with that cam. I think we ended up with a 10" converter in the Fury. Ran 11.74 with stock heads. Any 8" converter would likely flash wayyy too high for that combination. I would go with the cam with the faster ramps since you already have rockers. I would look into the comp MM series stuff. I would keep the duration in or near the 240@.050 range though.

Re: Question about a few cams [Re: Kevins493] #1440714
05/23/13 03:24 PM
05/23/13 03:24 PM
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tywebb2 Offline OP
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4200 stall would be needed with which cam? My 10" TA vert flashes at 4200 fwiw.


'72 440 Cuda
11.673 @ 115.91 w/1.663 60'
Re: Question about a few cams [Re: tywebb2] #1440715
05/23/13 05:02 PM
05/23/13 05:02 PM
Joined: Feb 2006
Posts: 2,379
MD
Kevins493 Offline
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Usually I just go by the flash. You would need about that with the .509 to really get what you need out of it. I will say I've also used the .590 and it had better street manners than my street car, lol. I'd be curious as to what Cliff's new combo is since that car has to weigh about 4200 lbs...

Re: Question about a few cams [Re: Kevins493] #1440716
05/23/13 07:09 PM
05/23/13 07:09 PM
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Balt. Md
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383man Offline
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I know that Dwayne Ported has a guy at Comp grind the cams he specs. He took all my info and speced a cam for my 493 thats a flat tappet and he also had it nitrided which is good to do with a flat tappet cam. I have his phone # if you want to call him. I also bought my EZ heads from him and he did a little port work on them for me. I really like his work as it seems every car I see with his work in it runs great. And he is a very nice person to deal with. Just let me know if you need his # if you dont have it and want to call him. I used the .557 in my old combo which I like to refer as the solid version of the .509. I had the 9.5 Dynamic behind that in my old 440 combo and I do like their 9.5 converter they built for me with a 4200 flash. I left it in the car and have it behind this new eng also. Ron

Re: Question about a few cams [Re: 383man] #1440717
05/23/13 08:46 PM
05/23/13 08:46 PM
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Jarrettsville, MD
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tywebb2 Offline OP
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Ive got Dwayne's number but thanks anyway Ron.


'72 440 Cuda
11.673 @ 115.91 w/1.663 60'






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