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#1
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Hughes or Comp??
When running about 9.5-9.8:1 compresion will the comp cam Xtreme energy cams create too much cylinder pressure to run pump gas. Which will really make more power with about the same duration @.050 the Hughes or Comp Xtreme energy? Because you can get Comp Cams for quite a bit less.
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#2
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Just personal experience:
I used a Hughes 1423 grind (actually an Engle cam) in a 318 buildup with 9.5:1 compression and I had excellent results with it. That cam is more of an RV cam, but it worked very nice in my B-body. BTW, I ran on pump gas with no problems, once the combo was dialed in (i spent a fair amount of time tuning it). Used the highest octane i could get though, typically 94. |
#3
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Thumbs up for Hughes Cams...
I run an HE2430 (270/276 adv. 223/230 @.050 .504/.515) in my 408 stroker. 9.55 compression, no problems running on crappy CA 91 octane with initial timing at 18BTDC and total at 35BTDC even with stock cast iron heads. Also idles really well down to 800 rpm. Ample power over a really broad RPM range.
I vote for the Hughes cam. It was worth the $152 that I paid for it. |
#4
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tsteiner61, have you run your stroker at a track? What rpm's does it like to be shifted at with that cam? Thanks
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#5
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Sorry no track action yet. I'm still breaking it in and tuning it up. I haven't taken it above 5000 yet. Plus many other issues to work out regarding rear end. If I ever get any good data, though, I will post here.
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#6
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I would contact Jim over at Racer Brown. Tell him everything about the engine (true compression, head work, etc) and what you expect the car to do and on what octane you want to do this. Jim can then set you up with the best cam for you application or tell you if it is even possible.
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#7
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I would choose the Mopar Performance for the 318:
Hydraulics P4452761 268/272 450/.455 P4452992 280/280 474/.474 Solid P4120653 284/284 528/.528 Go ahead with Mother Mopar |
#8
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Dartboy, i'd go with the comp xtreme series. these are great cams.
I've got a 360 with a 284/296 comp cams xtreme energy hyd. it's radical,mean and nasty. tsteiner, isn't that hughes cam a little small for your motor ?? |
#9
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DartBoy318;
To answer your question, if both cams have the same duration @ .050, the Hughes will make more power for "2" reasons. 1. The cam is ground for taking advantage of Chryslers larger lifter. This means that the cam can lift the valve quicker. This fast moving valve is an advantage. Comp and other manufactures do not grind there cams to take advantage of the larger lifter unless you ask for that. Comp Cams has cams ground specifcilly for the Chrysler lifter. These are race cams. You probably won't like the "Street mannors" these cam have. 2. Hughes has there cams ground with more lift than comps. Lift has a direct impact on horsepower. Comp "Race cams can be specificly ground to your exact specs if you want them to. Other companys also have this service. But if you do not have a damn good understanding of how things work, stick to what the offer or ask them for help in a custom cam just for you. You WILL be asked 20+ questions. So have ALL the paper work ready. 3. Wait I said 2, but there is one more thing that could be an advantage. Hughes cams are split pattern cams. This means that the durations for intake and exhaust are not the same. Typically, the exhaust duration is longer. Why? The longer exhaust duration will let more of the spent gas's out. Provideing a better /cleaner intake charge. This is good to a point. At what point is the question. When you port your heads, racers try to achieve a balance of about 70% intake to exhaust flow ratio. Or better. If you have to much exhaust duration, you actually start to lose power. Unless your heads are ported by a pro to race, you will probably make more power with a hughes cam. In a apple to apple comparison, if the same company ground 2 cams exactly the same except the exhaust duration being longer, the split pattern cam would make more power. |
#10
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I will admit that Hughes makes a better cam than Comp Cams, however, Racer Brown has many more profiles available and will even make a custom grind at no extra cost, if you need it. The Racer Brown cams are far superior to the Hughes cams, as Racer Brown will grind a cam that is intended for your specific application.
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#11
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I've never had any experience with a Hughes, but I've never been a big fan of split duration cams except for mild street engines, like tow vehicles and such. However, I have sold a couple of Comp X-treme cams and they are smokin'!!! They are particularly good if your compression is a little less than it should be, as they help build cylinder pressure....................djs
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#12
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Re: Hughes or Comp??
Quote:
__________________
68 Coronet 69 Super Bee......new 500 cid comin soon! 73 Duster witha missing 440/727 |
#13
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From what I have seen the Comp Extream cams are a high rate of lift cam, and the Comp cams that come closest to the specs of the Hughes cams are the Extream "HL" (the HL = High Lift.)
I don't know what the comp cams sell for. |
#14
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eholtler what is the contact method for racer brown cams? I have the Mopar 509 small block cam and am extremely unhappy with the 360s performance maybe racer brown couls help before I buy the next Hughes cam.
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#15
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#16
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451;
I don't think the Xetreme cams are on the same page as the other manufacures of cams when it comes to the max use of the .904 lifter. I asked them this question via E-mail and have not gotten a response. Thanks Comp! |
#17
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Quick question, I bought a hughes 1423 cam for my 340. Am I going to need adjustable rockers or will my non adjustable stock ones work?
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#18
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Quote:
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#19
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I vote for the custom cam(racer brown)
Only because it doesn't make sense to me, to use an off the shelf cam when you can get one for YOUR engine, with little money difference. I also question the technical advise over at hughes. I've heard nothing but good things about the products,but... What happened was, when I put the big block in the van, I found I wanted more low end. I use the van for towing, so the cam I had(which was great around town, for kicking a$$) was no good with the trailer on. After talking to a hughes guy, he recommend me a cam that was more radical than the one I was already using. I pointed this out to him,and he said "oh...well then try..." |
#20
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Erson grinds them for Hughes Engines correct?
__________________
68 Coronet 69 Super Bee......new 500 cid comin soon! 73 Duster witha missing 440/727 |
#21
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Hughes sells cams ground by Engle. I think Sig Erson used to work for Isky.
Forget Comp Cams, where were they when we wanted .904 Mopar lobes. All they pushed for years were their Chevy lobes. Comp may have a good product but I'm going to support the companies who gave the Mopar crowd more support, Ultradyne, Hughes (Engle), Racer Brown. Cecil |
#22
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I looked into the Ultradyne cams and they don't appear to have much to choose from. Not only that but they seem less like the Mopar grinds than anyone else, with their lift being so low for the duration. I think I will look into Racer Brown since most people seem to agree they are the best. How are their prices though? Much more than Hughes?
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#23
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Quote:
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#24
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Racer Brown......cam, give them a call;you will get the cam you want the first time.
They are quite familar with the chrysler grinds and what they need...... |
#25
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Oops, man I need to lay off the hard stuff. My memory is gettin bad.
__________________
68 Coronet 69 Super Bee......new 500 cid comin soon! 73 Duster witha missing 440/727 |
#26
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Whats that you say, you need adjustable valvetrain with the XE Comp Cam. Funny, my 340 runs nice and quiet with my XE268H and it performs quite nicely too. It actually outperformed the MP 280/.474 cam. Idles nice also.
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#27
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OhioDemon,
The car is set up as a daily driver. I probably could've went one bigger, but it still sounds mean and is a hair more driveable. |
#28
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MrMopar,
When you say outperformed, do you mean seat of the pants? Just curioius because I am using the same MP cam. |
#29
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Hughes cams
I have been running a Hughes HE3844AL 237/244 @ .050 with .535/.540 lift for the past few years, and it makes awsome power. Very happy with it, but when I went to freshen up my short block this year I noticed one of the lobes was starting to flake away along with the matching lifter. I have matching Hughes springs and have always used Mobil 1 synthetic oil. I was going to replace it with another Hughes until I saw the new prices on their cams. Almost $280 for a hydraulic cam with anti-pump up lifters. So I decided to go with the MP 296/557 solid cam & lifter package from Mancini for $154.99. I haven't had a chance to do a comparison yet, but I'm sure the car won't be slower. I should have checked this forum earlier, I probably would have checked out what Racer Brown had to offer!!
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