440-450rwhp Possible with Setup Inside?
Retired
Joined: Oct 1999
Posts: 3,166
From: Inside Uranus
Re: 440-450rwhp Possible with Setup Inside?
I had a single pattern cam (240/240 .560 .560 112 LSA) in my 396 and that bitch would burn the tires off the rims at 50+ mph and go sideways faster than you could say OHMYGODWE'REGONNAFUC*INGDIE!!!!!!!!!!!!!!!!!!!!!11 11111
I'd get the 58mm TB or Monoblade, a set of Comp R lifters, the AFR Hydra-Rev Kit, thinner head-gaskets to raise compression, and run your Borla wide-open.
Mike
I'd get the 58mm TB or Monoblade, a set of Comp R lifters, the AFR Hydra-Rev Kit, thinner head-gaskets to raise compression, and run your Borla wide-open.
Mike
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Joined: Jan 2004
Posts: 1,322
From: San Francisco
Re: 440-450rwhp Possible with Setup Inside?
im thinking of getting the monoblade....What gains would the Comp R's give me? I was thinking of getting the hydra rev in the future, and my borla lives open!!
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Joined: May 2003
Posts: 6,661
From: LA (lower Alabama)
Re: 440-450rwhp Possible with Setup Inside?
Your factory lifters will take you to 600-650FWHP @ 7000RPM's with the right springs.Most of the stories you hear about factory lifters are caused by valve springs not the lifters.
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Joined: Dec 2003
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From: Oklahoma where trees are made of wood.
Re: 440-450rwhp Possible with Setup Inside?
Originally Posted by Fastbird93
So am I, and they're just stock ported heads. And I have a custom cam too, and it's STILL got an 8* split. I don't remember what the optimal number was (I want to say exhaust being around 80% of the intake) but with the numbers he mentioned it's definitely NOT it.
The AFRs have a distinct advantage over stock ported heads on the exhaust side. My AFRs wher just cleaned up and flowed a little over 200 cfm from .500 to .700 lift on the exhaust side without a pipe, adding a pipe put the numbers over 220 cfm from .550 on up. The velocity was also better than a set of Brodix track 1s the machineshop had setting there fully ported.
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Joined: Mar 2002
Posts: 4,827
From: Waynesboro, PA
Re: 440-450rwhp Possible with Setup Inside?
Originally Posted by WS Sick
The AFRs have a distinct advantage over stock ported heads on the exhaust side. My AFRs wher just cleaned up and flowed a little over 200 cfm from .500 to .700 lift on the exhaust side without a pipe, adding a pipe put the numbers over 220 cfm from .550 on up. The velocity was also better than a set of Brodix track 1s the machineshop had setting there fully ported.
The places where I've seen the biggest AFR gains is in the area above the .550-.600 range where the LT1 head, stock or ported, quits flowing. A smaller AFR head (190,195) is somewhat comparable to a max effort stock ported lt1 casting.
Either way, they're still not close enough on the split to really be able to make full use of a single pattern cam.
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Joined: Oct 2001
Posts: 2,525
From: SoCal
Re: 440-450rwhp Possible with Setup Inside?
Originally Posted by Kraest
I had a single pattern cam (240/240 .560 .560 112 LSA) in my 396 and that bitch would burn the tires off the rims at 50+ mph and go sideways faster than you could say OHMYGODWE'REGONNAFUC*INGDIE!!!!!!!!!!!!!!!!!!!!!
LOL, mine does that too - you just grab another gear and hang on.
And your did that with that little cam, huh?
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Joined: Oct 2003
Posts: 1,454
From: MN/WI
Re: 440-450rwhp Possible with Setup Inside?
Originally Posted by SS MPSTR
LOL, mine does that too - you just grab another gear and hang on.
And your did that with that little cam, huh?
And your did that with that little cam, huh?
Sounds like some of you need better tires and suspensions
Retired
Joined: Oct 1999
Posts: 3,166
From: Inside Uranus
Re: 440-450rwhp Possible with Setup Inside?
Originally Posted by SS MPSTR
LOL, mine does that too - you just grab another gear and hang on.
And your did that with that little cam, huh?
And your did that with that little cam, huh?
Mike
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Joined: Dec 2003
Posts: 2,724
From: Oklahoma where trees are made of wood.
Re: 440-450rwhp Possible with Setup Inside?
Originally Posted by Fastbird93
While I can't attest to the velocity my heads are putting out, I can verify that my heads are legit and were flowed on an independent bench from the original porters. And they're flowing a constant 203 on the exhaust side from .500 to .600. Sounds a bit like your AFR heads. And yes, that's without a pipe.
The places where I've seen the biggest AFR gains is in the area above the .550-.600 range where the LT1 head, stock or ported, quits flowing. A smaller AFR head (190,195) is somewhat comparable to a max effort stock ported lt1 casting.
Either way, they're still not close enough on the split to really be able to make full use of a single pattern cam.
The places where I've seen the biggest AFR gains is in the area above the .550-.600 range where the LT1 head, stock or ported, quits flowing. A smaller AFR head (190,195) is somewhat comparable to a max effort stock ported lt1 casting.
Either way, they're still not close enough on the split to really be able to make full use of a single pattern cam.
Oh don't get me wrong, I know ported LT1 heads can flow over 200 cfm on the exhaust side. I don't doubt you there at all.
But TPIS built this cam to go with their ported AFR heads.
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Joined: Mar 2002
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From: Waynesboro, PA
Re: 440-450rwhp Possible with Setup Inside?
Originally Posted by WS Sick
But TPIS built this cam to go with their ported AFR heads.
Ah, see, you didn't say that before......I gotcha. That cam was designed with those heads in mind. It all makes sense now.
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Joined: Dec 2003
Posts: 2,724
From: Oklahoma where trees are made of wood.
Re: 440-450rwhp Possible with Setup Inside?
Originally Posted by Fastbird93
Ah, see, you didn't say that before......I gotcha. That cam was designed with those heads in mind. It all makes sense now.
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Joined: Dec 2001
Posts: 180
From: Texas
Re: 440-450rwhp Possible with Setup Inside?
Originally Posted by WS Sick
I would agree with you if he had stock ported heads, but he is running heads that flow 200 plus cfm on the exhaust side.
I almost ran the TPIS cam he is using but the price is what kept me away (375 plus shipping!!!). I talked with TPIS extensively about it and they said that the cam was matched to the heads flow, and that the opening point of the exhaust was set to enhance filling. They also said an LT1 with 1 3/4 LTs and a free flowing exhaust nullified the poor exhaust flow of the motor.
I like my 847, but I would like to try the TPIS cam in question sometime just for giggles.
I almost ran the TPIS cam he is using but the price is what kept me away (375 plus shipping!!!). I talked with TPIS extensively about it and they said that the cam was matched to the heads flow, and that the opening point of the exhaust was set to enhance filling. They also said an LT1 with 1 3/4 LTs and a free flowing exhaust nullified the poor exhaust flow of the motor.
I like my 847, but I would like to try the TPIS cam in question sometime just for giggles.
I think he did mention it earlier, unless the post above ^^ is talking about something else.
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Joined: Mar 2002
Posts: 4,827
From: Waynesboro, PA
Re: 440-450rwhp Possible with Setup Inside?
Originally Posted by Rpm280
I think he did mention it earlier, unless the post above ^^ is talking about something else.
Guess I missed that part (or didn't remember it actually).
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