Question about on CR and turbocharging
Thread Starter
Joined: Nov 2001
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From: Michigan, the land of cold
Question about on CR and turbocharging I have a 2000 Camaro, and it's got 92K miles on it. I have a set of ARE Stage 2 Heads (2.055/1.60, Comp 977 springs, 59cc chambers), hardened 7.350 rods, and am trying to find a good NA cam.
I am going to have to do the heads on the car because the valve seals are shot, it's burning oil. I was going to do just springs, but if the valveguides are gone, I am wasting time. I also have a Turbotech 60-1 kit, complete finally, ready to install.
I am not looking to run a lot of boost, not at all. I am not looking to make crazy dyno numbers. I am looking to see what my options are.
First question, what is the dishing of stock LS1 pistons, if any? That will help determine the compression ratio.
Next question, what kind of boost could I do with a turbo on a motor with the to be determined CR. Say it is 10.8:1, could I do five pounds? Three? I run 93 octane all the time, considering alcohol injection. If I have to retard the timing, I can do that too.
So much to think about, please guide me...
Thanks,
George
I am going to have to do the heads on the car because the valve seals are shot, it's burning oil. I was going to do just springs, but if the valveguides are gone, I am wasting time. I also have a Turbotech 60-1 kit, complete finally, ready to install.
I am not looking to run a lot of boost, not at all. I am not looking to make crazy dyno numbers. I am looking to see what my options are.
First question, what is the dishing of stock LS1 pistons, if any? That will help determine the compression ratio.
Next question, what kind of boost could I do with a turbo on a motor with the to be determined CR. Say it is 10.8:1, could I do five pounds? Three? I run 93 octane all the time, considering alcohol injection. If I have to retard the timing, I can do that too.
So much to think about, please guide me...
Thanks,
George
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From: orlando, florida
I can not explain how much of a differance my home ported 6.0s made. The drop in compression made a unbelievable differance in the way the car performs. Definatly swap some 6.0s on you will be much happier with the results.
The stock pistons have 0 dish. Good luck.
The stock pistons have 0 dish. Good luck.
Thread Starter
Joined: Nov 2001
Posts: 927
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From: Michigan, the land of cold
Cool...
Originally Posted by MYTURBOT/A
I can not explain how much of a differance my home ported 6.0s made. The drop in compression made a unbelievable differance in the way the car performs. Definatly swap some 6.0s on you will be much happier with the results.
The stock pistons have 0 dish. Good luck.
The stock pistons have 0 dish. Good luck.
What about pistons on the 6.0L motor? Any dish, or flat tops too? I am contemplating a 6.0L iron block. Sure, it'll add some weight. But I will do what every turbo guy does.
Turn the ****...
Thank you both! Anything else?
wait wait, i thought the idea was to hold some sort of a budget and run on stock pistons.. if not doing that then what are we talking about here? p.s. dont need an iron block.
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Originally Posted by ChevyThunder17
I am not looking to run a lot of boost, not at all. I am not looking to make crazy dyno numbers. I am looking to see what my options are.
If this is what you think, you definitely do not need a iron block. Save the weight!
Even Lengerfelter uses aluminum blocks, they'll be fine unless you have ludicrous horsepower.
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Verdad Gallardo Thread Starter
Joined: Nov 2001
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From: Michigan, the land of cold
The stock motor has 92K miles on it, blowing oil. I can sell my Stage 2 heads, get a set of stock 6.0L heads and run those for now. I know that down the road, I am going to turn it up. No doubt in my mind. I will get a bigger turbo. I suppose at that point I am going to make a decision for what motor.
I am thinking that the valve seals are the cause of the blue smoke. How bad can the stock shortblock be? Could I get away with just a H&C swapout for now?
I am thinking that the valve seals are the cause of the blue smoke. How bad can the stock shortblock be? Could I get away with just a H&C swapout for now?
Thread Starter
Joined: Nov 2001
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From: Michigan, the land of cold
Originally Posted by MIGHTYMOUSE
p.s. dont need an iron block.
And thank you for reminding me that I am budget building.
Seriously, no joke, I forgot. I got ahead of myself. Again. 
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From: orlando, florida
The 6.0s will bolt straight up to the ls1 but you have to use the 2002 6.0 mls head gaskets with the 4.0 bore.
O.K i need to get this straight. What motor are you running in your car? If it's the LQ4 motor, then with the stock short block and 6.0 heads you'll be around 9.4:1 compression. Because the lq4 has a small dished piston. If it's the LQ9 6.0 it's 10:1 compression becase the lq9 uses a flat top piston. Also if your getting blue smoke make sure to do a cylinder leakdown test and compression test to make sure your rings aren't shot.
O.K i need to get this straight. What motor are you running in your car? If it's the LQ4 motor, then with the stock short block and 6.0 heads you'll be around 9.4:1 compression. Because the lq4 has a small dished piston. If it's the LQ9 6.0 it's 10:1 compression becase the lq9 uses a flat top piston. Also if your getting blue smoke make sure to do a cylinder leakdown test and compression test to make sure your rings aren't shot.
Thread Starter
Joined: Nov 2001
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From: Michigan, the land of cold
Okay, will do that. Need to find the gauge.
It's a stock motor 2000 Camaro. I am pretty sure it's the valve seals, the valvetrain has always been a bit noisy on this car. But I will do the check. What should the compression read?
It's a stock motor 2000 Camaro. I am pretty sure it's the valve seals, the valvetrain has always been a bit noisy on this car. But I will do the check. What should the compression read?