brain

Just as the subject states, it appears that most of the cam'd dyno's and some of the head/cam dyno's are lower on power pretty much everywhere below 5K. This is compared to my car, LT and CAI only. I have compared my dyno to other cars with the same mods and are within 2 -3 hp across the board. I would usually expect gains from 3500 and above, but that seems to be the exception, not the norm. Especially with heads, even without the cam, wouldn't you see some more power pretty much across the board? I've asked the question before, yet I've still not recieved a valid answer. If I put a cam in my car and it dynos say, 330 RWHP, but I've lost power everywhere but 5000 and up, should I be happy? I would think the car would be slower in normal driving and even WOT until you reach 5K. I know races don't take place at 2000 rpms, but you can't always launch at 5000 and shift high enough to keep it above 5000. So what's the deal?

drewstealth

I don't think i have seen a dyno chart yet that from putting a cam in the car. The car has actually lost power under 5000 rpm. It might jump a lot between 5000-6000 but losing power from the stock cam i don't think so. If that was the case on a dyno chart you have seen then there was probably another issue with the car. Although this may be the case if you go with a really big cam.

IrocManiac

I assume since you have an LT1 you still wanna make good power to 6k you just dont want the bottom end to fall out?

1995redZ28

i kinda know what your talking about. i have to say from experience with installing the hotcam.... the car does seem to be slightly slower and "chug" more down in the lower rpm's. normal driving around def. makes the car seem a little slower, and i find myself having to go WOT sometimes just to remind myself that the power is still there!!

of course we cant shift and keep the rpm's above 5000!! but what car can??? and why would you want to?!? but our cars have pretty impressive torque which def. helps out!!!

brain

Basically, I am saying that the majority of the cam'd cars make LESS power than my stock LT1 until 5000 rpms. My friends mustang is a 331 and with heads that flow 250 and a small cam it makes more power from 3000 on up. Peak power is only 30 or so, but its the 20 across the board that I want. I want a cam that may only give me 320 - 330 rwhp, but I want at least a 10 hp gain across the board from 3000 on up. Is it possible, and if so, does anyone have dyno sheets? The consensus is that there are no factory freaks, so why does mine have so MUCH more than a h/c car? I would expect them to AT LEAST have the SAME power in the mid range, not less. Any other ideas?

94formulabz

Oh man, i typed a big nice reply and it got eaten by the server

You can't beat the stock cam for low end tq. You will not find a cam alone that gives you 10 more hp at 3k rpms.

My cam gave me gains starting around 3300 rpms. obviously they start at around 1 hp there and build to a peak gain of around 35 hp towards 6k rpms.

Most cams don't gain much if any peak torque, or if they do its peaking at a slightly higher rpm and it's not fair to compare just the peak values. Cams benefit by holding the tq curve up in the higher rpms, aka not dropping like a rock.

Look into the zz3, CC502, crane powermax 210/224.

How doesthis dyno look to you? Note STD hp/tq, ->343 SAE.

-brent

jchevy

just do gears with the cam...problem solved

Seal

yeah, 3.37s would be nice

4.10s if u have an m6 tho

brain

94 formula, I like your cam. Small, good power and it made more at lower rpms than most of the others I've seen. Have you been back to the track with the cam yet? I'd be interested to see some new traps, because I would expect easily over 113 or so.

I see what you are saying about not gaining peak torque, that is entirely my point. I don't care about peak numbers at all. I've seen too many cars on this forum with over 350 RWHP run like they have 310. Since torque and hp are related, I am making more torque pretty much across the board to than a lot of the h/c cars. Your car doesn't have much more peak torque, but it is very broad, and has a good 5 - 10 ft./lbs everywhere and also carries past 4500, where mine begins to fall.


Man, now I'm starting to like a small cam.

Showme

Hey Man,
I've got the cam for you. Try the TPIS zz9 cam.
It makes power from 1K all the way to 6K when I had it in my car.
It probably would have gone higher. I know what your talking about. I lost 30 ft/tq in the lower rpms and only gained it back when I got the gears.
Only reason I put a bigger cam in is because I wanted to make as close to 400 rwhp as possible once all my mods are done.
The zz9 (212/226/112) is a damn good cam.

Tim

P.S. Mine is for sale

FastWhiteTA

I have a CC305 and my power starts surpassing the stock cam around 3800 rpm or so, peak power is about 5900-6000 rpms. Below 3800 it's acutally about the same, just starts increasing more above that rpm.