This looks like a good place to pose this question to you guys........I'm considering a new LS1 engine with a hot cam and headers.......OR a new LS6 engine with a cam.........both options are supposedly going to get me to 450hp..........

I just wanted to know your opinions on what option may be the best.

 

Sorry If I'm hi-jacking your thread...but I gotta ask.

I've never heard of that T-Rex cam before. Are those typical results for bolt on cars? How much does that cam cost w/new springs and everthing else necessary for it? Would I go nuts trying to use my car as a daily driver with a cam like that in it?

 

So you figure that the T-Rex cam alone would only make around ~375 HP, but with headers then it will make 450 HP? Let's be reasonable here, headers on a stock LS1 will make in the neighborhood of what, 20 - 30 HP over stock? So that's where I figure the T-Rex cam must be adding at least ~50 HP to the stock 350 HP, and probably a little more. You can't tell me that it makes 450 HP and most of that is due to exhaust.

ALSO, if the stock LS1 can benefit from headers, doesn't that mean that the exhaust already has "nowhere to go?"

 

The LS6 has better heads, so it would be a better engine to start with, although ported & polished LS1 heads could probably flow about the same as stock LS6 heads, +/-. As far as I've heard though, the LS1 "Hot Cam" and the LS6 camshaft in an LS1 will make roughly the same amount of HP.

 

It's new. You can find it on Thunderracing.com. They recommend a 4000 stall with an A4, or 4.10 gears with an M6, and also computer tuning, so I don't know if it would be the best daily driver cam or not. It doesn't even start making power 'til 3500 RPM!!

 

A TRex cam car with no bolt ons would make about 350-360 to the wheels.

A bolt on car without the cam would make about 340-350 to wheels.

However add bolt ons to the cam car and add a cam to the bolt on car and you have your 450 rwhp. These mods compliment each other. Go back to the idea of the straw. If you have a narow entrance (intake) a very wide center (cam/engine) and then narrow exit (exhaust) the wide center is helping you flow to much air if it cant get in or out easily.

 

I installed the LT4 hot cam kit with 1.6 rr and springs I did not dino but it felt a bit slower SOTP it was an lt1 thow, I had bolt ons.

 

You should be kicked in the head several times and then may your car throw a rod for digging up this thread for useless crap

 

Can you hook it up to a computer or a decent code reader and see where the timing is at? What type/kind of timing chain did you use,and was it adjustable?

Im no LT1 expert,but ive changed many cams before and if you change a cam and it makes less power something is really wrong...thats why im thinking timing b/c theres not much you can do on a fuel inject. car to make it run better than tune it.

 

Did you notice the date? This is an old, old thread about an LS1 car.

Ben T.