Big Boost(25+psi) Big Power(900+rwhp) & 400+ci - What Cam? - LS1TECH

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Big Boost(25+psi) Big Power(900+rwhp) & 400+ci - What Cam?

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Old 10-01-2007, 01:23 PM   #1
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Default Big Boost(25+psi) Big Power(900+rwhp) & 400+ci - What Cam?

How big of a cam should I go with reach that 1000-1100rwhp mark on a big boosted application. Looking at 25+psi of boost on a carb style intake and cathedral port heads spinning to 7500 or more

Are we talking 240 duration range or 250+ duration?

What about lift? Is it going to help to have a cam with .650+ lift or stick to the .600 to .620 range
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Old 10-01-2007, 01:38 PM   #2
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you really don't need a huge cam at all to make big power on a Poocharger. i would stick in the 230s-low 240's max and right arould .600". it really depends on the drivability and power curve you want out of the car. what trim blower are you going with?

if it were me, and it was a street-strip car, i would go with a mid 230s cam.
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Old 10-01-2007, 01:50 PM   #3
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Quote:
Originally Posted by Turbo LS1 SS
you really don't need a huge cam at all to make big power on a Poocharger. i would stick in the 230s-low 240's max and right arould .600". it really depends on the drivability and power curve you want out of the car. what trim blower are you going with?

if it were me, and it was a street-strip car, i would go with a mid 230s cam.



LMAO man WTF is a poocharger? Is that a new type of forced induction? I need to check into that . Wonder how much boost I can safely run on one of those poochargers. You don't wanna run to much boost on the poocharger cuz you might blow an o ring and the motor might ****. I know it was a accident but damn thats funny. Laughed for a good 10 minutes.

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Old 10-01-2007, 02:58 PM   #4
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Quote:
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LMAO man WTF is a poocharger?
Alternative fuel source enhancer

Keith
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Old 10-01-2007, 03:57 PM   #5
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it twas no accident. i call them poochargers. my partner in crime has a poocharger, and i have a turby
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Old 10-01-2007, 04:35 PM   #6
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try the EPP forced induction cam I beleive its 232/240 .6xx/.6xx 115LSA and there are a few on here that run it successfully with s/c and turbo's. I am going with something similiar in my 408/turbo build this winter
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Old 10-01-2007, 06:30 PM   #7
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I have yet to figure out why people ask this question. There is NO straight up correct answer.

Call one of our turbo/sc sponsors. Tell them what your goals are. They will order you the correct cam. Also, don't believe all the crap about "you don't need a big cam" to make power. BS. A small cam may get you some boost. You may not need it, but it surely doesn't hurt either. I DON'T consider mine large by any means. I believe that the head/cam choice I made has allowed me to get low 9's on 10lbs of boost. CHOOSE WISELY!! and just call W2W or LS1Speed and get it done right the 1st time.

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Old 10-01-2007, 07:40 PM   #8
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Mine is a 270/290 on a 115
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Old 10-01-2007, 07:42 PM   #9
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Quote:
Originally Posted by slowredz
Mine is a 270/290 on a 115

how big of a motor? cant be at .50....tats huge...

i can keep secrets
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Old 10-01-2007, 08:05 PM   #10
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Quote:
Originally Posted by Navy David SS
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it really depends on the application. if its a street/strip car, a large cam is not liked by a lota people if its going to drive like poop. if its a strip car, by all means, go with a larger cam.
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Old 10-01-2007, 08:45 PM   #11
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Quote:
Originally Posted by daniel6718
how big of a motor? cant be at .50....tats huge...

i can keep secrets
**** must be solid roller
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Old 10-01-2007, 08:53 PM   #12
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Quote:
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**** must be solid roller
Nah 3/4 race cam...lol
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Old 10-01-2007, 09:25 PM   #13
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**** must be solid roller
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Old 10-01-2007, 09:28 PM   #14
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Quote:
Originally Posted by Turbo LS1 SS
it really depends on the application. if its a street/strip car, a large cam is not liked by a lota people if its going to drive like poop. if its a strip car, by all means, go with a larger cam.
Driveability is mostly in the tune not the cam. Tuners often use that as an excuse for not being able to get a car to drive good. My last cam in my nitrous 347 motor was a 244/254 644/654 on a 112 and drove and idled great.
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Old 10-01-2007, 10:06 PM   #15
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I'm making 1200 rwhp with a S91... I went with a RV cam...its the ****..just ask anyones grampa
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Old 10-01-2007, 10:32 PM   #16
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would solid roller benefit highly on a street car with a 347/76mm combo? i rarely sww solid roller set ups on turbo cars, only on race cars
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Old 10-01-2007, 11:03 PM   #17
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Quote:
Originally Posted by LSInnovations
I'm making 1200 rwhp with a S91... I went with a RV cam...its the ****..just ask anyones grampa

sorry to go off the topic a bit-but how much more hp as the s91 got on your setup?

and whats max boost efficency for the s91
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Old 10-02-2007, 08:34 AM   #18
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What size engine?
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Old 10-02-2007, 10:20 AM   #19
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mine is 238/238 585/585 116lsa. I got it because it was in the range i was looking for and a good deal used. Is it ideal for max power output? i am sure it isnt it but it idles and drives well with my 3.08 gears and tight converter and performs well at the track. There are so many variables that your question needs to be answered by a cam expert. Also you really need to see where your priorities fall for street/track/idle/lope etc
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Old 10-02-2007, 11:34 AM   #20
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Quote:
Originally Posted by LSInnovations View Post
I'm making 1200 rwhp with a S91... I went with a RV cam...its the ****..just ask anyones grampa
Nice....what were the final numbers??
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