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How much hp is too much for a stock bottom end LS7?

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Old 08-13-2015, 09:34 PM
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ProEFI
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740hp for a year without any issues running meth and pump before getting the meth kit I was running C16 in weekends only.
Old 08-13-2015, 09:34 PM
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I'm no expert, but I can't help but think I've seen a ton of people with stock LS2/3 intakes make 1000rwhp, so I'm not sure why you'd need a billet intake

Completely possible I'm missing something, though

I wish I had a good recommendation on where to get a more reasonable price, but I don't. Hopefully someone else does.
Old 08-13-2015, 10:18 PM
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Default How much hp is too much for a stock bottom end LS7?

Don't need an intake at all. Stick with stock. Where are u located? There are a lot of reputable shops nation wide than can build you a solid setup for close to half of that
Old 08-14-2015, 04:02 PM
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Just get a holley hi ram. It has the best results and it's cheaper.
Old 08-14-2015, 04:44 PM
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Originally Posted by croatbob
Don't need an intake at all. Stick with stock. Where are u located? There are a lot of reputable shops nation wide than can build you a solid setup for close to half of that
I'm in NY. Long Island to be exact. At the moment I'm only making about 710 to the wheels and that's on a Dyno Jet which reads a bit high. At max boost I'm at 7.4 PSI. So I'm wondering if the FAST 102 that was on it when I bought will cut it, or will it ballon and leak, or break up and pieces of it get sucked into my motor.
I'm sure at very high boost levels where people don't even have their restrictor plate in, this is a valid concern. However, in my case with a restrictor plate in place and only 7.4 PSI at max, I'm wondering if I'm safe.
Old 08-14-2015, 06:51 PM
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Just spoke to Josh at A&A. He said the old FAST 78 and FAST 90 would break around 12 PSI, but the newer FAST 102 was good too about 16 PSI, so I should be be fine at only 7.4. LMR said the same thing.
Old 08-17-2015, 08:05 AM
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I've made 1050 rwhp on the stock block, with forged crank/rods/Pistons.

Most do not push the LS7 because of its value. You can sell it for significant money, vs breaking it and having a paperweight.

Simple economics.

As long as the tune up is solid, and no detonation, you will be fine well into the 800/900 range.
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Old 08-17-2015, 09:39 PM
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Originally Posted by Louis Gigliotti
I've made 1050 rwhp on the stock block, with forged crank/rods/Pistons.

Most do not push the LS7 because of its value. You can sell it for significant money, vs breaking it and having a paperweight.

Simple economics.

As long as the tune up is solid, and no detonation, you will be fine well into the 800/900 range.
I believe I have the highest whp record stock bottom end ls7. I made 837whp /741wtq on saturday. I'm also using your LG7XX cam and it worked out fine with a single turbo setup. I'll make a thread tomorrow if I get a chance. It's also 13.8.1 compression S480 billet wheel T6. Those numbers were made on 6psi and 10* Timing I'll turn the boost up next time. It's on waste gate pressure for now.

-Curtis
Old 08-17-2015, 09:52 PM
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Originally Posted by C6 Curtis
I believe I have the highest whp record stock bottom end ls7. I made 837whp /741wtq on saturday. I'm also using your LG7XX cam and it worked out fine with a single turbo setup. I'll make a thread tomorrow if I get a chance. It's also 13.8.1 compression S480 billet wheel T6. Those numbers were made on 6psi and 10* Timing I'll turn the boost up next time. It's on waste gate pressure for now.

-Curtis
Ah! Darin tuned it. I saw in facebook. Stout for sure! Can you pm/post the turbo location?
Old 08-17-2015, 10:06 PM
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Originally Posted by Louis Gigliotti
Ah! Darin tuned it. I saw in facebook. Stout for sure! Can you pm/post the turbo location?
Yea Darin did a really good job on it.



Watch "C6 Z06 S480 13.8.1 compression 6psi" on YouTube
-Curtis

Last edited by C6 Curtis; 08-17-2015 at 10:10 PM.
Old 08-18-2015, 12:13 PM
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Originally Posted by croatbob
Don't need an intake at all. Stick with stock. Where are u located? There are a lot of reputable shops nation wide than can build you a solid setup for close to half of that
Hey Bob. If you don't mind me asking, at what RPM are you making peak power and what are you camshaft specs?

Is your car friendly enough to use as a daily driver, or really just for weekends/track?
Old 08-18-2015, 12:14 PM
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Originally Posted by C6 Curtis
Yea Darin did a really good job on it.



Watch "C6 Z06 S480 13.8.1 compression 6psi" on YouTube
C6 Z06 S480 13.8.1 compression 6psi - YouTube
-Curtis
Damn! That is a thing of beauty Curtis. Congrats!!
Old 08-18-2015, 12:39 PM
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Originally Posted by NYOverlord
Hey Bob. If you don't mind me asking, at what RPM are you making peak power and what are you camshaft specs?

Is your car friendly enough to use as a daily driver, or really just for weekends/track?
peaks at 6300-6400 rpm. its a custom grind similar to the texas speed ls7 blower cam. you could use it as a daily if the triple plate wasnt such a bitch to get off the lights. lighter clutch would be nice. gas mileage isnt ideal either lol. if your building a daily just put some rods and pistons in your ls7 and bump the boost up. dont go crazy with it. $$$ and driveability start to head south
Old 08-18-2015, 01:54 PM
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My car is perfectly daily drivable. Put 6k miles on it in last 2 months. High power doesn't need to be rough to drive. Just pick a decent cam. That is the only thing that makes it rough. Well that and clutch if you get a crappy clutch. Only thing you may need to fight depending on environment is heat. Otherwise 1200+rwhp and drive almost like stock, zero issues.

Sold my stock ls7 short block for $3500, which put a nice dent into the $8800 bill for the LSX setup.
Old 08-18-2015, 04:31 PM
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Good friend with an 06 Z06, milled heads, new valves, stock cam, bolt ons, 530rwhp. Missed a shift, cracked #8 piston and liner.
Old 08-18-2015, 05:04 PM
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How is that relevant? Friends Honda accord missed a shift, blew motor apart. A bone stock corvette can do that. It has nothing to do with what the bottom end can take. Missing a shift and a mechanical overrev can destroy any motor. It isn't like a $20k billet crazy 3000hp motor can die like that just as much as a stock motor.
Old 08-18-2015, 07:08 PM
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Originally Posted by Unreal
How is that relevant? Friends Honda accord missed a shift, blew motor apart. A bone stock corvette can do that. It has nothing to do with what the bottom end can take. Missing a shift and a mechanical overrev can destroy any motor. It isn't like a $20k billet crazy 3000hp motor can die like that just as much as a stock motor.
+1 lmao

-Curtis

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Old 08-18-2015, 09:05 PM
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Originally Posted by Louis Gigliotti
I've made 1050 rwhp on the stock block, with forged crank/rods/Pistons.

Most do not push the LS7 because of its value. You can sell it for significant money, vs breaking it and having a paperweight.

Simple economics.

As long as the tune up is solid, and no detonation, you will be fine well into the 800/900 range.
Are you saying with a solid tune and no detonation I will be fine with 800/900 hp to the wheels on a stock bottom end LS7?
Old 08-18-2015, 09:07 PM
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Originally Posted by Unreal
My car is perfectly daily drivable. Put 6k miles on it in last 2 months. High power doesn't need to be rough to drive. Just pick a decent cam. That is the only thing that makes it rough. Well that and clutch if you get a crappy clutch. Only thing you may need to fight depending on environment is heat. Otherwise 1200+rwhp and drive almost like stock, zero issues.

Sold my stock ls7 short block for $3500, which put a nice dent into the $8800 bill for the LSX setup.
To my knowledge, LSX only makes iron blocks in the 427 cubic inches and above rhelm. What motor do you have and how much should it set me back?
Old 08-18-2015, 09:23 PM
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Originally Posted by C6 Curtis
I believe I have the highest whp record stock bottom end ls7. I made 837whp /741wtq on saturday. I'm also using your LG7XX cam and it worked out fine with a single turbo setup. I'll make a thread tomorrow if I get a chance. It's also 13.8.1 compression S480 billet wheel T6. Those numbers were made on 6psi and 10* Timing I'll turn the boost up next time. It's on waste gate pressure for now.

-Curtis
At 847 whp and 741 wtq, how long do you expect that stocl block to hold up? I'm pretty scared my motor will blow with only 710 whp and 700 wtq!!!!

So everyone knows: I make almost all my power (561 whp before the blower and meth) by motor. I'm running only 7.4 PSI at max boost.


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