Re: Pick a cam for the Imperial
[Re: Rug_Trucker]
#2030836
03/14/16 12:03 PM
03/14/16 12:03 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
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Senior Management
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OP
Senior Management
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Irving, TX
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Aluminum heads and not taking advantage of them? Sell them and do an RV porting job on a set of closed chambered iron models. Maybe even some 516's :stir: 2500 stall would help. My Maxivan with the 360 was running a 2200 cheapy generic converter, Comp 252* RVcam with 3:21's and was a 6000lb shoe box. I ran a 800TQ or a Mopar '86 model Qjet on an Offy Dual Port intake. There was a problem with one of the stock heads. A valve cover bolt hole was drilled down into the water passage. Instead of messing with that, I threw my Edelbrock heads at it. They were sitting on the shelf collecting dust.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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Re: Pick a cam for the Imperial
[Re: feets]
#2030852
03/14/16 12:39 PM
03/14/16 12:39 PM
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Joined: Jan 2003
Posts: 14,610 Not2farfromNashville, TN
Rug_Trucker
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,610
Not2farfromNashville, TN
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So are you going back iron? I would. There should be lots of 452's out there in Irving. Those Eddies ought to be killing the low end and midrange.
I kept a set of 516's when I gave away some 383's. Neat looking chambers. Small valves!
"The only thing to do for triumph of evil is for good men to do nothing"
"NUNQUAM NON PARATUS!"
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Re: Pick a cam for the Imperial
[Re: feets]
#2030936
03/14/16 02:50 PM
03/14/16 02:50 PM
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Joined: May 2003
Posts: 6,562 Downtown Roebuck Ont
Twostick
Still wishing...
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Still wishing...
Joined: May 2003
Posts: 6,562
Downtown Roebuck Ont
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Did you degree in the cam when you installed it? Maybe advancing it 4 deg might have helped.
If you just did a dot to dot, that may have been the source of your gutless pig syndrome. With that cam it should have been fairly torquey but would run out of breath pretty quick with the short lift. Another .100" lift would be nice with the rest of the specs about the same.
Do you have any used pre 72 pistons in stock? Cheap CR increase if you don't want to spring for new pistons zero decked to take complete advantage of your closed chamber heads.
Also assuming you have 2.5" duals with good flowing mufflers.
edit I see 2.25". Good mufflers more critical now IMHO.
Kevin
Last edited by Twostick; 03/14/16 02:54 PM.
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Re: Pick a cam for the Imperial
[Re: Twostick]
#2030949
03/14/16 03:11 PM
03/14/16 03:11 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
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The cam was ground with 4 degrees of advance so I took the easy way out and lined up the dots.
I don't have any stock pistons on hand. The heads are open chamber Eddys.
The car has 2-1/4" dual exhaust that is still in good shape. Should I feel froggy I'll drop on the MP C-body manifolds and a new 2-1/2" exhaust.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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Re: Pick a cam for the Imperial
[Re: feets]
#2030965
03/14/16 03:37 PM
03/14/16 03:37 PM
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Joined: Jan 2003
Posts: 14,610 Not2farfromNashville, TN
Rug_Trucker
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I Live Here
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Posts: 14,610
Not2farfromNashville, TN
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I am sure the 2 1/4" would be beneficial for mpg's
"The only thing to do for triumph of evil is for good men to do nothing"
"NUNQUAM NON PARATUS!"
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Re: Pick a cam for the Imperial
[Re: feets]
#2030966
03/14/16 03:38 PM
03/14/16 03:38 PM
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Joined: Jan 2003
Posts: 16,376
dogdays
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I Live Here
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As usual, the big cam guys have totally missed the point. You said 218 at 50 and 114 LSA = gutless pig. They'd have you go bigger on the cam?!?! Well the majority at least.
I'd suggest two things - Less intake duration and tighter LSA
Hughes SEH1016BL-12 is my #1 choice. This camshaft has the highest lift for its duration which will allow the E-heads to work better. I would ask them if getting it ground on 110 LSA would work better for your application.
A straight Performer may be your best bet for this application. "But it's the same as a stock intake!" No it's not, it has 20+ years of development over the stocker. Plus as everyone else hates the Performer there should be one out there in your price range.
The advance curve can also help a lot.
I like the Super Turbo 17748 or 17749 for your mufflers, 2 1/2" pipes at least from the high perf manifolds to the mufflers, plus H-pipe.
R.
Last edited by dogdays; 03/14/16 03:44 PM.
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Re: Pick a cam for the Imperial
[Re: feets]
#2030970
03/14/16 03:49 PM
03/14/16 03:49 PM
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Joined: Jan 2003
Posts: 21,074 Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,074
Niles , Ohio
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Summits cam were General kinetics years ago.The last few I used were all Crane instructions.Ive run pretty much all of them and had great luck in budget builds with them.The smaller cams are just a bit over stock.One of the last ones I usedmade my old smogger Ram Charger run quite a bit better than stock.Ran one in my kids Ram truck also and it was great.Rocky
Chrysler Firepower
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Re: Pick a cam for the Imperial
[Re: Jerry]
#2031067
03/14/16 05:52 PM
03/14/16 05:52 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
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Irving, TX
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It has an H pipe in the current exhaust system.
I want more lift on the cam. More specifically, I want more area under the curve.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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Re: Pick a cam for the Imperial
[Re: feets]
#2031095
03/14/16 06:33 PM
03/14/16 06:33 PM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
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I Live Here
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Kalispell Mt.
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get the same cam, tighten up the LSA to around 109 advance the intake closeing about 2 degrees from where it was and run some 1.6 rockers, it will get significantly more power at every useable RPM.
2.5 dual and X pipe should boost power a little bit everywhere.
The performer only makes more TQ below the factory stall speed so don't bother with it, go for the performer RPM.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Pick a cam for the Imperial
[Re: HotRodDave]
#2031104
03/14/16 06:46 PM
03/14/16 06:46 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
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I'm not going to run a taller intake manifold. The air cleaner is tight against the hood now. 1.6 rockers aren't cheap.
This is NOT a hot rod. It is a cruiser and some of you seem to be heading for the wrong road.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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Re: Pick a cam for the Imperial
[Re: feets]
#2031218
03/14/16 10:22 PM
03/14/16 10:22 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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360 has a longer stroke than a 400, that may play into it.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: Pick a cam for the Imperial
[Re: feets]
#2031700
03/15/16 03:22 PM
03/15/16 03:22 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
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Comp Cams called this morning and said they'd never seen that kind of failure and would like to get the timing gear back for inspection. That's not the kind of failure they need to see with their parts.
That being said, Comp has offered to send me a replacement cam, lifter, and gear set. This cam was a custom grind due to the possible installation of turbos. When I box it all up for return I'll have to see if they can add a bit more lift and fatter lobes. Maybe it'll help make a bit more power.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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Re: Pick a cam for the Imperial
[Re: feets]
#2031778
03/15/16 05:24 PM
03/15/16 05:24 PM
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Joined: Feb 2014
Posts: 416 Georgia
KingTuna
mopar
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mopar
Joined: Feb 2014
Posts: 416
Georgia
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Turbos and fuel injection on the Imperial would be really sweet.
2014 Ram 1500 Pentastar V6 1966 Fury II 4 door
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Re: Pick a cam for the Imperial
[Re: feets]
#2031795
03/15/16 05:59 PM
03/15/16 05:59 PM
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Joined: Jan 2003
Posts: 16,376
dogdays
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I Live Here
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Comp reportedly has smaller lobes in the XE---HL line that don't show in the catalog. They also have other lobe families that are more for custom grinds than shelf stock. So, they certainly will have a better lobe. Maybe you're looking at the most duration at 0.200" lift.
I still say something about 210 - 212 intake with maybe 10 more exhaust and a 110 LSA, even a 109 or 108.
R.
Who grinds the Summit cams means very little as the grinds themselves are generic. If it was G-K back in the day, if you say so. Later, when Crane had bought up all the cam grinding businesses in the US, they were manufactured by Crane but meant nothing because of generic lobes. Then Crane went bankrupt, they sold about everything. Now they're coming back. But someone else is grinding the Summit and other generic lobe cams. It's probably someone who doesn't have a name brand and who we never heard of.
Last edited by dogdays; 03/15/16 06:05 PM.
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Re: Pick a cam for the Imperial
[Re: KingTuna]
#2031799
03/15/16 06:03 PM
03/15/16 06:03 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
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Turbos and fuel injection on the Imperial would be really sweet. That was the original plan but interest waned.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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