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GM Hot cam bad rap

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Old 10-09-2008, 05:45 PM   #1
Leo001
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Default GM Hot cam bad rap

I have been doing lots of web research on mods for the LS1, it seems the GM Hot cam gets lots of negative reviews. It sounds very aggressive, but appently it dosn't deliver what you would expect based on its sound. Is there any good feedback on this cam? Assume stock heads, and just a cam swap, headers and maybe a LS6 intake (trying to keep costs down) what cam would be most suitable (increase power, limited loss of drivability) and what kind of HP numbers would be expected. Current mods include a B&B catback and a cold air intake,
Car info: 2000 cp 6sp

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Old 10-09-2008, 06:21 PM   #2
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What exactly are you trying to accomplish with the mods to the car? More RWHP/RWT acceleration. You need to have a plan. If you just throw parts at the car you will spend a lot of money and accomplish nothing. Take a look at the cams from CRANE. They have some great proven performance packages that deliver power without sacrificing drive-ability. You will also need to have the car tuned to take advantage of the cam and the other parts you use. I have a LS1 in my car so I have been where you are now. I did my homework and am very happy with the way it turned out. I have lost no drive-ability and have a fast fun car to drive.

Just incase you were wondering if I had actuly done any mods to my car, see my signature.

Last edited by 08 ATOMIC-Z; 10-10-2008 at 12:53 PM. Reason: new info
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Old 10-09-2008, 06:40 PM   #3
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A custom grind. Any off the shelf cam is going to lack in power in one area or another. There is NO perfect off the shelf cam....everycar is different. You can get a custom grind for $450 and make way better power, have it set up for how you drive, the mods that you have, ect. ect.
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Old 10-09-2008, 07:59 PM   #4
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You can get a custom grind from Patriot performance for about $350. There are some proven cams out there that are off the shelf grinds. A 224/228 or 228/228, 228/232 are just a few that have been proven to provide excellent power with great driveability.

Cajun
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Old 10-09-2008, 08:25 PM   #5
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I ran the GM hotcam on my LS1 Camaro.
It did sound nasty...and smelled nasty too! I think that was due to exhaust leaks and a lack of tuning though.

Given the advancement in dependable valve springs since the hotcam was introduced (and I believe the hotcam specs are just carry over from the LT1 days!!) a higher lift cam can now be run that will net you more power than the hotcam will.

I liked my hotcam, at the time. But now that I'm doing a H/C package on the Vette and there are better valve springs that are now available, I've gone a different and higher lift route.

You may want to at least spend $500 on a cheap set of used ported heads when you do the cam since so much of the car will already be apart. That would probably net you an additional 30-rwhp.
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Old 10-09-2008, 08:30 PM   #6
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Quote:
Originally Posted by FASST LN View Post
I ran the GM hotcam on my LS1 Camaro.
It did sound nasty...and smelled nasty too! I think that was due to exhaust leaks and a lack of tuning though.

Given the advancement in dependable valve springs since the hotcam was introduced (and I believe the hotcam specs are just carry over from the LT1 days!!) a higher lift cam can now be run that will net you more power than the hotcam will.

I liked my hotcam, at the time. But now that I'm doing a H/C package on the Vette and there are better valve springs that are now available, I've gone a different and higher lift route.

You may want to at least spend $500 on a cheap set of used ported heads when you do the cam since so much of the car will already be apart. That would probably net you an additional 30-rwhp.
Where are you getting ported heads for $500?
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Old 10-09-2008, 08:34 PM   #7
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Quote:
Originally Posted by ccajun4real View Post
You can get a custom grind from Patriot performance for about $350. There are some proven cams out there that are off the shelf grinds. A 224/228 or 228/228, 228/232 are just a few that have been proven to provide excellent power with great driveability.

Cajun
I understand completly, but you will not find an off the shelef cam that will provide the power everywhere. That is what custom grinds are for. With the Patriot cams, do you have to tell them the specs?
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Old 10-10-2008, 09:27 AM   #8
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I found a good deal on LS1tech for essentially new Patriot 5.3L stage 2 heads for $500 shipped.

I was looking for a used set of AFRs in the $1,500 range, but after several months of looking/waiting I still hadn't found any. This opportunity came up so I jumped on it. They won't be as good as the AFRs, but the price is worth it.
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Old 10-10-2008, 11:08 AM   #9
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Personally, I wouldn't waste the money on a cam without a set of heads to go with it - my two cents.
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Old 10-10-2008, 01:13 PM   #10
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Quote:
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Personally, I wouldn't waste the money on a cam without a set of heads to go with it - my two cents.
There are plenty of people who have shown excellent gains going with just a cam and bolt ons. Lots of people with 400+ rwhp. Bang for the buck a cam is one of the best upgrades you can do. Yes, you will see better gains with a set of heads, but do not in any way negate the gains from a healthy cam.
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Old 10-10-2008, 01:40 PM   #11
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I used a Crane grind- "Z" cam @228/232@112+5 on my Z with TFS heads milled to 61cc. It is no problem to drive in heavy traffic, but even with cats, it smells. The price you pay for overlap. Fantastic mid-range, with no apparent end on top, 477/428 SAE corrected, and 27 mpg highway.
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Old 10-10-2008, 02:58 PM   #12
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Quote:
Originally Posted by Bvette2000 View Post
Personally, I wouldn't waste the money on a cam without a set of heads to go with it - my two cents.
Nothing wrong with a cam only set-up. Build as your budget permits..... heres cam only.....

http://s5.photobucket.com/albums/y17...rent=011-1.flv
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Old 10-10-2008, 08:49 PM   #13
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[QUOTE=OhioC5;1567417678]Nothing wrong with a cam only set-up. Build as your budget permits..... heres cam only.....

Sounds great, any idea of performance gains you realized from this uograde? Have you noticed a significant gain in power?

Leo
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Old 10-10-2008, 08:54 PM   #14
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there is a 228/228 LSA 111 for sale in used parts section right now. you wont be dissapopinted...perfect street manners, nice lope, and lots more power.
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Old 10-10-2008, 09:42 PM   #15
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Quote:
Originally Posted by Mike94ZLT1 View Post
There are plenty of people who have shown excellent gains going with just a cam and bolt ons. Lots of people with 400+ rwhp. Bang for the buck a cam is one of the best upgrades you can do. Yes, you will see better gains with a set of heads, but do not in any way negate the gains from a healthy cam.
Your right, but when I had mine torn all the way down the tendency is to keep going!
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Old 10-10-2008, 09:47 PM   #16
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Cam only is fine. Hell I got 75whp with TPIS headers and 228/228 cam on my 2000 A4. Heads only get you another 30-40whp but cost alot more than a cam kit. IMO I would NEVER buy a used cam. New ones are too cheap if you find the right place. PM me for info on deals on cams, springs, etc

Cajun
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Old 10-11-2008, 01:57 PM   #17
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[/QUOTE]Sounds great, any idea of performance gains you realized from this uograde? Have you noticed a significant gain in power?

Leo[/QUOTE]


Leo,
I didnt run it prior to the cam swap, but It runs 12.30 @ 112 mph,
1200' above sea level.
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Old 10-11-2008, 06:25 PM   #18
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Quote:
Originally Posted by OhioC5 View Post
Nothing wrong with a cam only set-up. Build as your budget permits..... heres cam only.....

http://s5.photobucket.com/albums/y17...rent=011-1.flv


Your car sounds awesome!
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Old 10-11-2008, 08:33 PM   #19
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Your car sounds awesome!
Thanks, I love it. The neighbors dont. Sometimes I push it out in the street before I start it just to try to keep the peace.
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Old 10-11-2008, 08:45 PM   #20
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Quote:
Originally Posted by ccajun4real View Post
Cam only is fine. Hell I got 75whp with TPIS headers and 228/228 cam on my 2000 A4. Heads only get you another 30-40whp but cost alot more than a cam kit. IMO I would NEVER buy a used cam. New ones are too cheap if you find the right place. PM me for info on deals on cams, springs, etc

Cajun
Why? With todays hydraulic roller tip lifters cam wear is minimal at most. I've purchased/used one camshaft the entire time I've been doing the LS1 thing, and made the most power on an old left over cam that was laying in the shop. (232/242 on a 111)
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