Almost time for a very nasty sounding cam...
Thread Starter
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Joined: Aug 2003
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From: Berkley, MI
Almost time for a very nasty sounding cam... What is the wickedest/meanest sounding cam I can cram under these 61cc AFR's ? I do not want to pull off the heads again to flycut. The old T1 thumped really good so I know that a small cam can be ground to sound very ill. I am assuming it would have to be on non xer lobes w/ a 112 LSA (or less ?).
I want it to thump hard and have a wicked idle and above all not loose any HP/TQ. The c1 (222/222 566/566 --112) has been good to me but since I got my car tuned it sounds way too stock which does not work very well around these parts.
Help a brotha out...set-up in sig.
I want it to thump hard and have a wicked idle and above all not loose any HP/TQ. The c1 (222/222 566/566 --112) has been good to me but since I got my car tuned it sounds way too stock which does not work very well around these parts.
Help a brotha out...set-up in sig.
I'd try a F-11 or F13 cut on a 110 LSA. If you want it to lope harder, increase the duration split and drop the LSA some more. All you have to do is add overlap. The more you have, the more lope you get.
Originally Posted by 1QuickT-A
Most of the TSP cams thump pretty damn hard.. 233/239, 231/237, etc etc..
2.02 intake valve plus milling= tight fit.
I would think the largest you could get away with would be a 224/227 on 112. A wider lsa would allow for a bigger cam but not give the lope you're really seeking. How about an ASA cam?
Nate
Thread Starter
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From: Berkley, MI
After listening to the f13 I almost wish I did not mill the heads. Keep in mind I have the 3.42 gear at the moment so between that and the heads I am not in the big cam market. The gears will eventually be 4.10's though. ASA's you say. I'll search. It seems dudes really like the Futral cams though.
I wouldn't mess with the ASA cam's, but that's my opinion. The GM cams tend to have lazy lobes due to the fact that they are used for road racing and spend most of there time above 4500 rpm's. For a daily driven car, a more aggressive lobe should be used. If your heads are 61cc's, I assume they have been milled .030"? If that's the case, you can still run a decent size cam. I believe you could get away with a F11 on a 112, but you might have to keep advance to a minimum. You have to remeber with AFR's, you gain about .010" clearence over a stock head because of the way the valves are placed. Allan should be able to give you a deffinate answer, but I bet it will fit just fine.
A friend of mine has AFR 62 CC heads with a 224/228, when we pulled the heads recently he had two piston kisses. Don't know the cause. That cam is almost like stock.He's going with a 240/ 246 XER. I can't imagine what that will sound like. Bottom line is .080 notching. If you want a BAD cam you will have P/V issues unless you notch.
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Thread Starter
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Joined: Aug 2003
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From: Berkley, MI
A 224/228 is not almost like stock (durantion alone not to mention valve events) but I see your point.
Beast96Z, yes they are milled .030. Oddly enough when I pulled the stock heads off I had two "eyebrows" already so I guess the point is do not miss shifts even with a small cam. At the time I did have manley singles so that may have been a contribitor now I have the "gold" duals. I noticed that Futral had many symetrical grinds. I may look into the F11 thanks for the advise.
Beast96Z, yes they are milled .030. Oddly enough when I pulled the stock heads off I had two "eyebrows" already so I guess the point is do not miss shifts even with a small cam. At the time I did have manley singles so that may have been a contribitor now I have the "gold" duals. I noticed that Futral had many symetrical grinds. I may look into the F11 thanks for the advise.
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Originally Posted by Beast96Z
I wouldn't mess with the ASA cam's, but that's my opinion. The GM cams tend to have lazy lobes due to the fact that they are used for road racing and spend most of there time above 4500 rpm's. For a daily driven car, a more aggressive lobe should be used.
Plus it idles like no other.
Nate
Originally Posted by taufern
Use the search feature and see how lazy the graphs are for the asa cam under 4500. I think you will be surprised at the under the curve power.
Plus it idles like no other.
Nate
Plus it idles like no other.
Nate
Originally Posted by Beast96Z
A cam with a better lobe and the same duration should net better numbers due to the valves opening quicker. Not saying it was bad, but it could be better. It should also sound mean as hell. It's got 10 degrees of duration seperation and it's cut on a 110. Lots of overlap in that one..... Still wouldn't be my choice in a street car. To many other better cams out there that are suited for that application. JMO.
I got ya, but it makes a great daily driver cam once tuned because the ramp rates aren't like an XER lobe, and you can get away with less seat pressure than on a comparable cam. Hell a set of 918's would be perfect and you'd never have to worry about breaking springs. Plus you get a mean *** idle, and more power across the curve than a hot cam.
Tuning is a must for the 110 lsa but throw in a set of the AFR 205 heads with upgraded springs and this cam and you will make a **** ton of low end tq and still have it pull past 6500.
Nate
