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Old 01-30-2005, 05:55:00 PM   #1
Bruce Sherman
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Factory performance cam .vs. Isky Mega Cam

I have a 396, stock 350 horse model. Now it has a Lunati cam that is almost the same specs as the Eddie Torker, just 114 centerline. I was thinking of swaping that for a Isky 270 mega, but was wondering if a GM performance cam be better. The one I was thinking about is #12353920(cam kit) and its recomended for 396-427, 9.5-10.75-1 comp, 3000-3400 cruise rpm, 2200-5700 (6500 atainable with proper valve springs and lifters), 228/238 @ .050, 540/540 lift, 114 centerline. I am looking for driveability and reliability out of this enging. It is going in my 80 Camaro, (396) TH350(trans-go shift kit),3000 TCI stall 3.73's, 255-60-15 tires out back, 3" exhaust w/H-pipe and 40 series delta race flows, 2" primary headers( I know its to big of a system for a stock engine, but it looks Bad-Ass). I was thinking about a Stelth intake.
What kind of power differance would the Isky be over the GM. Torque is the main factor, proboly both cams make around 360 hp.

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Confucius says " he who uses small, crimped exhaust, gets short of breath"

[This message has been edited by Bruce Sherman (edited January 31, 2005).]
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1971 Camaro 350(soon to be be BB) 4spd, hugger orange w/black stripes.. Poof-Gone

1987 Grand National- sold to Lobsterbak
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Old 02-01-2005, 07:30:00 AM   #2
Bruce Sherman
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Anyone wanna take a stab at this? I am looking for a honest 300hp at the wheels and 375lbtq at the wheels. Think it possible?

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Confucius says " he who uses small, crimped exhaust, gets short of breath"

[This message has been edited by Bruce Sherman (edited February 01, 2005).]
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1971 Camaro 350(soon to be be BB) 4spd, hugger orange w/black stripes.. Poof-Gone

1987 Grand National- sold to Lobsterbak
My old Camaro -
Short vid
http://video.google.com/videoplay?do...55367783373438

http://video.google.com/videoplay?do...88104413933291
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Old 02-01-2005, 08:38:00 AM   #3
79Z-28
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I have run isky cams for years with no problems,they make good power.You need to get someone to desktop dyno the combo for you or call isky tech line and they will help.I have a isky in a 355 sbc(solid) and 455 olds motor(hyd) and both make good power.
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Old 02-01-2005, 10:17:00 AM   #4
MagicRatt
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I am sitting here trying to think that it would be worth going thru all that work for minimal gains. I am assuming that you are not happy with the combo you have now and want to make a change. Question is if the change is going to make that big a difference to justify the work involved. I would definitely stay with a cam that has a high LSA. This will work nicely with the lower compression in your engine. The stock GM cams are tough to beat. The factory spends mega bucks on R&D thru the years so I can't see the aftermarket cam making gobs of extra torque. I run almost the same set up on my 70 SS with 2 inch headers and 3 inch exhaust, but I run the factory L-78 cam with a 4 speed and 4.56's out back. The car sounds great, runs even better, and I love telling people it has a "stock" cam in it.

[This message has been edited by MagicRatt (edited February 01, 2005).]
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Old 02-03-2005, 07:27:00 AM   #5
Bruce Sherman
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Could someone dyno these two for me, I wanna get a new cam right off quick and get this thing back together. If anyone else has a cam they would like to recomend just shout it out, looking for low and midrange torque(as much as possible)

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Confucius says " he who uses small, crimped exhaust, gets short of breath"
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1971 Camaro 350(soon to be be BB) 4spd, hugger orange w/black stripes.. Poof-Gone

1987 Grand National- sold to Lobsterbak
My old Camaro -
Short vid
http://video.google.com/videoplay?do...55367783373438

http://video.google.com/videoplay?do...88104413933291
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Old 02-04-2005, 10:39:00 PM   #6
pdq67
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OK, a CC 280 Magnum cam in a stock, 350hp/396 motor will put you up about 385/390hp AND it will do nicely imho...

As for cams like we are talking about, I like the Isky 280 Mega ground on 110 centers BUT you will need good valve springs b/c it is a .565" lift jobber!!

pdq67

PS., AND can the big headers b/c 1.75" jobbers are MORE then good enough!!!! You are losing power with them !!!!

[This message has been edited by pdq67 (edited February 04, 2005).]
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Old 02-05-2005, 02:01:00 AM   #7
muscl car
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try the old mechanical L88 cam 264/269 dur.@ .050 and 560/580 lift 4500-7000rpm. this cam really makes alot of horsepower and will wake up an anemic BBC

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1972 chevy camaro ss 350 sbc 425 hp/356 @ the wheels,350 trans,373 gears,daily driver with restification in progress for the old school / day 2 look
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Old 02-05-2005, 08:33:00 AM   #8
Bruce Sherman
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Quote:
<font face="Arial,Verdana" size="2">Originally posted by muscl car:
try the old mechanical L88 cam 264/269 dur.@ .050 and 560/580 lift 4500-7000rpm. this cam really makes alot of horsepower and will wake up an anemic BBC

</font>

This is out of the question, I want something to drive, and some long distance driving too.
I have been told the Isky 270 mega will produce more torque than the 280, and torque is what I am shooting for. I called comp cams and they recomended a cam that has cery similar specs to the Eddie performer. Should I be looking in this direction instead?




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Confucius says " he who uses small, crimped exhaust, gets short of breath"
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1971 Camaro 350(soon to be be BB) 4spd, hugger orange w/black stripes.. Poof-Gone

1987 Grand National- sold to Lobsterbak
My old Camaro -
Short vid
http://video.google.com/videoplay?do...55367783373438

http://video.google.com/videoplay?do...88104413933291
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Old 02-05-2005, 11:39:00 PM   #9
pdq67
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Go with either the 270 Mega or a CC 270 Magnum if you are after torque!!

Imho...

pdq67
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