Actually, most of the discussion in this thread revolves around the original posted question regarding cams. After re-reading, it appears that you ignored the original question and decided to ask your own carb question within the context of "Smallest cam to make 500 hp?".
It's ok tom we are not as bad as some sites on the restrictions I am sure someone will answer you here or by PM! good luck on your query. Steve maybe you should have made a suggestion to him on posting a new thread instead of making a comment such as the one posted above. not a flame just a suggestion.
It sounds like a good grind, but what are the flow numbers on the heads? As they say, "it's all in the heads".
about the cam: I wouldn't run a hemikiller in an iron-headed motor of any kind- stage1 or not, because of the duration being equal on the intake and exhaust. Especially not on an unported iron-headed motor. I would look for something with at least 10 degrees more exhaust duration at .050". Also, if it has a stock torque converter, you don't want to go too big, or it will be sluggish off the line. Just my opinion, of course.
You're right, I had thought about it. But I wasn't sure if I had seen the question come up in it's own thread earlier/elsewhere - so I didn't want to suggest something that could have possibly been done already. o No: Anyhow... back to the cam talk. I'm pretty interested in this new Earrick grind as the motor I'm looking to put together will be probably in the high 9's for compression, and likely the first generation of it with some mild non-Stage 1 heads. That may be the cam I'm looking for to run low rpm (~5300 rpm) shift points to take it easy on non "high zoot" internals. Then I can go bigger with the heads and not have to change the cam either.
Everyone on this board is always willing to lend an ear and throw out some advice. Including the guys that probably spend 16hrs. a day in their shop. They still find time to help people out. If you didn't get the answer you needed here you could always start your own thread. But then again, with an attitude like that I'm not sure how much help you would get. :spank:
My bad / my apologies, Somehow while reading your post I read it as a question about the carb with that cam instead of vice versa. I just went back and looked at it again and my response was out of line, although it was pretty tame compared to yours regarding not having your question answered. I wouldn't say I talked "Xxxt", that was just your interpretation of the mood of my response.
I like the looks of the "Ultimate 500". Brian, if possible, can you give more specifics on the flow #'s? I think more people would be interested in this cam as lots of folks build 10.0:1 motors that may be able to run it. Sounds very interesting.
I put that cam's specs through the Desktop Dyno and it produced ONE more horsepower than the 113A cam from Poston that I'm currently running. All other aspects of the motor I left the same. I don't know how much the idle would be different, but mine idles at about 750 or so. You definitely know the car has a cam, but it's nothing that will rattle your teeth. Plenty of people here have seen and heard the car and can tell you about how it sounds. My car made 375 hp and 479 lb.ft. of torque at the rear wheels on the chassis dyno that was at Norwalk this spring. And with a set of slicks I was able to click off my 11.99 run at Milan. I'm actually hoping to get out to Norwalk in the next month or so as I think a little fine tuning and cool air will hopefully net me high 11.80's. I think these new aluminum heads are going to be the big ticket for getting more HP while keeping the compression pump-gas-friendly. Good luck. Phil
I think he has been asked for the headflow numbers quite a few times when he posted about this cam. For some reason, they never seem to get posted. I wonder why that is? Saying a cam will get you a 500 hp motor is a lot of marketing hype. It's all about combination, and matching the cam to the heads. On the other hand, it does look like a good street/strip grind, and I've read some posts of other people using a similar cam with good results. I am skeptical about 500 hp with this cam on iron heads, unless they have A LOT of porting done.
My heads are 1967 430 heads with A LOT of porting. They said they took over a pound of metal out of each head. They were also port matched to my SP1 intake. 500 hp at the flywheel might be attainable, but not at the rear wheels.
The cylinder heads were never on our flow bench. They received a competition valve job, bowl work, hand blend, and port matching. The exhaust has no port work. Quite simply with the cylinder head experts we have there is no need to use the flow bench. The only negative about running the cams on the desktop dyno is that you dont have enough information about either cam to give them a fair comparison. This specific grind is by no means the best cam for everyones application. It was developed and performs very well for its intended purpose. We grind many other custom camshafts for maximum power. The cylinder heads had about $600 worth of port work done to them. We would be happy to assist you or anyone else looking to attain similar results. We are only a phone call away. Thanks Brian
Brian, What is the cost of this cam (or any of your custom cams)? Also, what kind of rpm range did you use for your 11.8 run with it in your motor? You say it pulls hard to 5500, but where did you shift it?
Thanks for posting the head info Brian. That's really impressive- 500 hp out of that kind of combination. Is there a reason you didn't port the exhaust side? You say that desktop dyno doesn't have enough info to accurately compare cams. What details are missing? Ramp profiles? Would you call this a "fast ramp" cam? The more I hear about the kind of power that can be made with fairly mild combinations, the more impressed I am with the BBB.
Something set my "BS" detector off. I think it has to do with a 9.2:1 compression, iron head 455 making 500hp. The claims that you don't need a flow bench and that the exhaust side was untouched make the whole thing REALLY hard to swallow. Stage 1 iron heads need lots of porting to get the flow numbers up high enough to support 500hp. I simply do not believe that you made 500hp without touching the exhaust ports and just a little blending in the bowl. It doesn't matter what cam you use if the heads wont flow. I also think that along with killer ported heads, you need at least another 1/2 point of compression and something larger than an 850 Holley.
no need to be skeptical Brent, i saw the car in question at the BPG test & tune in Norwalk on Aug 1. This is the real deal here. This car is as described! The owner is not a board uses here either. This is a 67 Skylark special. This car started at 12.40 & went down to 11.80's at 3500' (weather station) elevation. I didn't smell cam 2 in the exhaust either. The car owner told me the EXACT same specs that were listed here. This particular car runs a Q-jet too. This car was built to be street driven anywhere. It has a nice lope like most street cams. The goal was to run 11.99 told to me by the car owner. Brian & one of his engine builders did some basic tuning with timing & carb. at the track & this car just flew. I'd like to see what this car would do in cool weather with slicks. My heads are average in flow(250-int. 187ex) & i run 10's at 3200lbs. It can be done. Randy
