Crower Cams
Senior Member
Joined: May 2002
Posts: 483
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From: Alexandria VA
Nothing says power like a violent idle, I want a stage 3!
Originally posted by 69Roadster
Man, talk about coincidence. I just now got off the phone with Crower asking about the cams and was going to post some info when I saw this post.
Here's the page that list the cams:
Crower SOHC cams
The guy I talked to says the stage 2, which give good gains, is the most he would do on a street car. He said the stage 3 had higher gains but the idle was "really violent". He said they were working on improving the stage 3 to make them streetable but right now they aren't.
I was wondering which tuner would carry these. Looks like Tim saved me some phone calls looking for them. I'll have to give REM a call soon.
Man, talk about coincidence. I just now got off the phone with Crower asking about the cams and was going to post some info when I saw this post.
Here's the page that list the cams:
Crower SOHC cams
The guy I talked to says the stage 2, which give good gains, is the most he would do on a street car. He said the stage 3 had higher gains but the idle was "really violent". He said they were working on improving the stage 3 to make them streetable but right now they aren't.
I was wondering which tuner would carry these. Looks like Tim saved me some phone calls looking for them. I'll have to give REM a call soon.
Senior Member
Joined: Sep 2002
Posts: 2,031
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From: irving, texas
i cant wait to hear these things in a lightning! if cams didt do anything much for forced induction vehicles i dont think that theyd have seperate grinds for them, nor i dont think a lot of people would be using them on the track either.
also, for those who dont have enough to do with their money, you can always donate to the Cpeapea fund.
also, for those who dont have enough to do with their money, you can always donate to the Cpeapea fund.
Senior Member
Joined: Aug 1999
Posts: 5,438
Likes: 1
From: Palm Coast, FL
I'm not running aftermarket cams (the set of ModMax cams I got for my truck from the first batch, I sent to a customer instead). But I DO believe they will make power, especially with head work. It's already been proven on blown 2V Mustangs, which use our same heads. Both Crower and Modmax have several cam choices to choose from (both similar to each other), and the trucks I know of that are already using them, ARE making considerable gains in power. Just my 2 cents.
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Joined: Jul 2001
Posts: 463
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From: Florida
Originally posted by 69Roadster
Seeing Quick_Pick-Up run a 11.39 @117mph w/ new cams and ported heads makes me think they might work though. Sounds like he gained almost half a second with them.
Seeing Quick_Pick-Up run a 11.39 @117mph w/ new cams and ported heads makes me think they might work though. Sounds like he gained almost half a second with them.
Thread Starter
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Senior Member
Joined: Aug 2000
Posts: 651
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From: Ft. Lauderdale, Fl
I just spoke with a left coast gentleman who did some of the testing for Crower on these cams and was told that with ported heads (his flow #s are very similar to ours) and stock blower running at 15lbs of boost, he got 510 rwhp with the 62804 race cams.
Last edited by TimBurntire; Feb 25, 2003 at 04:46 PM.
Senior Member
Joined: Apr 2002
Posts: 5,298
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From: here
Originally posted by TimBurntire
I just spoke with a left coast gentleman who did some of the testing for Crower on these cams and was told that with ported heads (his flow #s are very similsr to ours) and stock blower running at 15lbs of boost, he got 510 rwhp with the 62804 race cams.
I just spoke with a left coast gentleman who did some of the testing for Crower on these cams and was told that with ported heads (his flow #s are very similsr to ours) and stock blower running at 15lbs of boost, he got 510 rwhp with the 62804 race cams.
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Joined: Feb 2001
Posts: 1,312
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From: In a House, USA
Originally posted by TimBurntire
I just spoke with a left coast gentleman who did some of the testing for Crower on these cams and was told that with ported heads (his flow #s are very similsr to ours) and stock blower running at 15lbs of boost, he got 510 rwhp with the 62804 race cams.
I just spoke with a left coast gentleman who did some of the testing for Crower on these cams and was told that with ported heads (his flow #s are very similsr to ours) and stock blower running at 15lbs of boost, he got 510 rwhp with the 62804 race cams.
Senior Member
Joined: Feb 2001
Posts: 1,312
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From: In a House, USA
Its obvious they make power (at least with headwork)
.
I wonder how much trouble I would be in if I took some of our funds for finishing out our basement and bought a motor instead?
....I think I would be sleeping in the L
.
.I wonder how much trouble I would be in if I took some of our funds for finishing out our basement and bought a motor instead?
....I think I would be sleeping in the L
.
Senior Member
Joined: Dec 2000
Posts: 2,365
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From: Elkton, MD
Originally posted by Ayrton
I think it would be interesting to see what a set of aftermarket cams would do for a truck of Sal’s caliber, or any top built engine.
I think it would be interesting to see what a set of aftermarket cams would do for a truck of Sal’s caliber, or any top built engine.
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Joined: Jun 2001
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From: Out Smokin' Unsuspecting Chevy's
Originally posted by LightningTuner
I'm not running aftermarket cams (the set of ModMax cams I got for my truck from the first batch, I sent to a customer instead).
I'm not running aftermarket cams (the set of ModMax cams I got for my truck from the first batch, I sent to a customer instead).
thanks Sal!!!!!I will finally be getting my truck back early next week......
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Joined: May 2002
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From: San Antonio, Texas
I'll try and keep it short, but I'm sure it will be long, so here it goes.
On a (JL style writing) *ROOTS* blown engine, the main factor in mass flow is the blower and what's above it. Everything after it has only small effects. There is a potential to see *SOME* power changes with the cam, but they will be small. The advantages of a higher lift, longer duration cam are a *SMALL* change in mass flow and a *SMALL" reduction in blower power consumed and a *SMALL* decrease in outlet temps. Add all of these up and you get a *SMALL* change. I'm not going to say it won't be measureable, because it probably will, but I will say it will be small.
On my mustang, a simple cam change can net large amounts of power since I am relying on the tuning to help force air into the engine and suck it out. On a *CENTRIFUGAL* blown mustang, its still a concern because increasing the exhaust lift and duration helps get the exhaust out helping the blower's mass flow. That is *NOT* the case with *ROOTS* blowers. It is a much smalller affect with roots blowers.
Also, on forced induction *LOPE* is *BAD*, particularly with *BLOWERS*. The engines volumetric efficiency is already very good because of the huge pressure gradient accross the engine. Naturally aspirated engines rely on exhaust tuning to pull that last little bit of mass out of the engine during the overlap period. Blowers will just shove fresh air and fuel out of the exhaust. Get the lope if it makes you feel happy, but it hurts fuel economy, emissions, and power. I know *I* would not like to spend my money on stuff that gives me no benefit and cost a bunch of money.
RECAP
Yes, you will probably see some power gaines.
No, the gains won't be as high as naturally aspirated.
Lope is a bad thing on supercharged engines.
On a (JL style writing) *ROOTS* blown engine, the main factor in mass flow is the blower and what's above it. Everything after it has only small effects. There is a potential to see *SOME* power changes with the cam, but they will be small. The advantages of a higher lift, longer duration cam are a *SMALL* change in mass flow and a *SMALL" reduction in blower power consumed and a *SMALL* decrease in outlet temps. Add all of these up and you get a *SMALL* change. I'm not going to say it won't be measureable, because it probably will, but I will say it will be small.
On my mustang, a simple cam change can net large amounts of power since I am relying on the tuning to help force air into the engine and suck it out. On a *CENTRIFUGAL* blown mustang, its still a concern because increasing the exhaust lift and duration helps get the exhaust out helping the blower's mass flow. That is *NOT* the case with *ROOTS* blowers. It is a much smalller affect with roots blowers.
Also, on forced induction *LOPE* is *BAD*, particularly with *BLOWERS*. The engines volumetric efficiency is already very good because of the huge pressure gradient accross the engine. Naturally aspirated engines rely on exhaust tuning to pull that last little bit of mass out of the engine during the overlap period. Blowers will just shove fresh air and fuel out of the exhaust. Get the lope if it makes you feel happy, but it hurts fuel economy, emissions, and power. I know *I* would not like to spend my money on stuff that gives me no benefit and cost a bunch of money.
RECAP
Yes, you will probably see some power gaines.
No, the gains won't be as high as naturally aspirated.
Lope is a bad thing on supercharged engines.