Deenasty

Well originally when I purchased my stroker, it had a hotcam in it. I got it tuned for the hotcam, and it made decent power. Sooner or later, I got bit by the "I WANT MORE POWER" bug, and swapped it out for a TPiS ZZX cam (240/240 .595/.595 112) I got this cam tuned, and frankly was dissappointed with the results. From 2300rpm-5300 the hotcam made anywhere from 10-20rwhp more than the ZZX! At roughly 5400rpm the ZZX surpassed and recovered, and gained me about 15rwhp. I am thinking of swapping out this cam, for something with more power and better driveability. My heads are AFR 190's (2.02 1.65) motor has 10.5:1 compression. No nitrous or blower in the future. I was thinking of maybe going with an xe grind on a 114. What are the suggestions?

1racerdude

Ya killed your dynamic compression with the last "big" cam and you don't want to go any bigger without raising the static compression.
I would go smaller on duration and a 112* LSA +4. you need to do some (a lot) of research to get the most HP out of your set up with only a cam change.

OldSStroker

What 1racerdude said ^^^.

April 05 issue of Car Craft has an article on an emmisions legal 383 LT1 they did with AFR P/N 0908 180ccc heads with 11:1 SCR. It was for an Impy so they wanted torque and an EO cam. It was a Crane P/N 10421. VERY mild at 218/218 on a 116 with .498.498 at the valves.

Dyno results at the flywheel: 460 lb-ft @ 4200 and 437 hp @ 5600. The good thing was 425 lb-ft from 2400 to 5400. This was with headers and a Borla Impy exhaust, but less cats and front accessory drive.

They had good dynamic with the short cam. As racer said, if you are only looking at a cam change, you need to do some work, or hire someone.

Good luck.

Deenasty

i completely understand what you mean. The problem was, I trusted TPiS in picking one of their camshafts, because it was a set of their heads. I figured, know one knew their heads better than themselves. I went ahead with this cam, and frankly the power and torque are way down. When I purchased this cam, I didnt know much about camshafts, and still dont know a lot, but I know more than I did upon purchase. I was in the "bigger is better" stage, but unfortunately learned that is not the case. Its about combination, not buying a bunch of parts and thinking its gonna make the most power. I am trying to aquire the most knowledge I can about making a wise decision upon my next cam purchase. Any help you guys can give would be greatly appreciated, thank You.

Dyno Graph

Jon A

You might be happy with the cam you have if you revved it up to where it was supposed to be revved. If you don't want to rev that high, then yeah, go smaller.

SS MPSTR

Put the Hotcam back in or something in that range. I have a friend who's running a 224/230 in his 383 and it makes nice power in the RPM range you appear to like to drive your car in. His cam is on a 112 LSA and has a nice little lope, makes great vacuum, easy on valve train parts, and makes its power from ~2200 on up to ~5800.

Mystic97Z

how come only114 or 112 lsa? i had a 110 lsa cam in my head/cammed lt1 and am going with a 108 lsa cam in my new 383 stroker...

Deenasty

the 112 lsa, because of the driveability..