Cam Only Numbers
Le Mans Master
Joined: Aug 2001
Posts: 8,145
Likes: 1
From: Bradenton FLORIDA
400 RWHP cam only on a MN6 car is pretty common as long as you have headers & CAI to go along w/it.
We are including the complete $500 Dyno & driveability tune for $0 with our cam & install special.
Race Director
Joined: Aug 2004
Posts: 14,639
Likes: 39
From: Winston-Salem North Carolina
St. Jude Donor '08-'09
Simple....www.eastcoastsupercharging.com I had headers, stock heads, with their custom cam kit(includes everything) I am at 430rwhp.
Pro
Joined: Jan 2005
Posts: 559
Likes: 1
From: Lenexa Kansas
To break 400whp with cam only on an LS1, you typically see pretty decent sized cams, like the G5x3. You can get there, but if you are picky about your idle, and driving characteristics, you'd probably be better off using a smaller cam with some ported/polished heads. I'm not trying to slam you guys with bigger cams than my 224/224, but I'm a picky guy when it comes to idle and mannerisms, and I don't think I would have been too happy with something a whole lot bigger. With my cam size and aftermarket budget heads, I'm at 410 at the wheel.
If you want tons and tons of cam-only #s, go to ls1tech.com. There is a virtual goldmine over there. You have to wade through a bunch of bs, but ultimately, they have a heck of a lot more people with cam-only and h/c packages to check out.
If you want tons and tons of cam-only #s, go to ls1tech.com. There is a virtual goldmine over there. You have to wade through a bunch of bs, but ultimately, they have a heck of a lot more people with cam-only and h/c packages to check out.
Team Owner
Joined: Mar 2001
Posts: 25,889
Likes: 7
From: Virginia Beach
CI 3-5-6-7-8 Veteran
A t-stat is a switch that regulates the flow of coolant through the system. A lower temp t-stat opens at a lower temp and allows coolant to flow through the radiator sooner. Thus, it begins cooling earlier and the engine takes longer to reach operating temperature. It will not change the normal operating temperature of the vehicle. A motor that is in it's optimum temperature range will make the most power becuse you can run the most timing... when the motor gets hot or heat soaked the computer must pull timing to stave off detonation thus reducing power output.To the OP... yes you can hit 400 rwhp on ls1 heads w/ bolt-ons... but it'll be a big cam.
If you go heads/cam you can pick a smaller cam and still achieve your power goals... or even bump them up some.
I'm at 436/397 w/ a G5-X2 cam, yella terra rockers, aluminum flywheel, and CAI/headers w/ cats. However, I have stock LS6 heads.
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Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Racer
Joined: Sep 2000
Posts: 373
Likes: 0
From: Wakefield R.I.
Yes because an lower temp t-stat magically adds power A t-stat is a switch that regulates the flow of coolant through the system. A lower temp t-stat opens at a lower temp and allows coolant to flow through the radiator sooner. Thus, it begins cooling earlier and the engine takes longer to reach operating temperature. It will not change the normal operating temperature of the vehicle. A motor that is in it's optimum temperature range will make the most power because you can run the most timing... when the motor gets hot or heat soaked the computer must pull timing to stave off detonation thus reducing power output.
To the OP... yes you can hit 400 rwhp on ls1 heads w/ bolt-ons... but it'll be a big cam.
If you go heads/cam you can pick a smaller cam and still achieve your power goals... or even bump them up some.
I'm at 436/397 w/ a G5-X2 cam, yella terra rockers, aluminum flywheel, and CAI/headers w/ cats. However, I have stock LS6 heads.
A t-stat is a switch that regulates the flow of coolant through the system. A lower temp t-stat opens at a lower temp and allows coolant to flow through the radiator sooner. Thus, it begins cooling earlier and the engine takes longer to reach operating temperature. It will not change the normal operating temperature of the vehicle. A motor that is in it's optimum temperature range will make the most power because you can run the most timing... when the motor gets hot or heat soaked the computer must pull timing to stave off detonation thus reducing power output.To the OP... yes you can hit 400 rwhp on ls1 heads w/ bolt-ons... but it'll be a big cam.
If you go heads/cam you can pick a smaller cam and still achieve your power goals... or even bump them up some.
I'm at 436/397 w/ a G5-X2 cam, yella terra rockers, aluminum flywheel, and CAI/headers w/ cats. However, I have stock LS6 heads.
RE: Big Cams vs Small cams. Did you look at what my cam was? 220/224 Its got a lot of lift (590's I/E). I have seen curves that are almost Identical to mine using 23+/23+ . There are a lot of good small cames out there.
Just realized you are a 01 Z06 that started out with 385 were we begin at 350(yes I know at the fly wheel) Guess I should get your 436 when I put my "cleaned up" 02 zo6 heads on.
Last edited by 04BlueGoose; Oct 4, 2007 at 11:44 AM. Reason: add info
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
I have to admit to considering lower the thermostat temp, but I am concerned about the oil temp dropping too low. If I knew the oil temp would still get up to 200 (it didn't in my old L98) I would likely go to a cooler thermostat (which would make Don happy 
).
).
Le Mans Master
Joined: Aug 2001
Posts: 8,145
Likes: 1
From: Bradenton FLORIDA
Oil temp will still get above 200 for flash-off, so no worries there. The other benefit of a lower temp TS is longer tranny life as the stock configuration runs through the radiator. (an aftermarket fin & plate style cooler will solve thet even better).
Le Mans Master
Joined: Aug 2001
Posts: 8,145
Likes: 1
From: Bradenton FLORIDA
Always tune on the safe side.....have seen to much carnage from pushing for that last few horses!
Excellent numbers Mike!
Instructor
Joined: Oct 2007
Posts: 113
Likes: 0
From: jacksonville florida
<<< new C5 owner here in florida, looking for a shop to do a cam and tune, good possibility it will have a 100 shot as well.
your website is down as far as products, can you give me more info please.