The LS9. Pictures and full details
Don't get me wrong, I love that GM has gone this route. Like the article stated, they had to go FI to get past the 500hp barrier and maintain long term durability.
I'm going to assume you meant 600hp.
It will be interesting to see what this block with the windows can take. The LS6 blocks are weaker than the LS1 blocks because of these windows, but it will be interesting to see how this fillet radii helps.
At maximum output, the fuel system needs to be able to supply 58 g/s. Injectors that can supply enough gasoline to feed an engine with this much power tend to be hard to control at the low flow rates required at idle. To help achieve this, a separate fuel system ECU is mounted next to the fuel tank. Based on demand it can adjust the fuel pressure to either 600 kPa at high speeds or 250 kPa at low speed.
What's the current limit of our PCMs? This dual PCM system sounds interesting even though I don't know that much about it.
What's the reasoning behind the removed material on the main caps by the side bolts? I'm not an engineer yet, but it's logical that the less material you have the weaker it is. Is it made of some special material that enhances strength greater than something like out main caps that still have that material?
Are those completely new head gaskets or are those the new GM MLS on the LS3?
An 11 rib belt drives the blower, water pump and power steering pump
That's really nice. It kind of sucks they couldn't utilize a seperate belt for the blower, but with the additional pulleys it will help with belt wrap.
Anyone know any specs about the rods? I know they are titanium, but are they the same specs as the LS7 or are they different? Hopefully GM will do what they did before and price them like the LS7 rods. If they are nice I'm definetly going to get a set before the price jumps up 1000%.
It is as you said the pot calling the kettle black. I see what he's saying though. The Ford guys are going to conveniently forget they had to do that to keep up with GMs technology.
It will be interesting to see what this block with the windows can take. The LS6 blocks are weaker than the LS1 blocks because of these windows, but it will be interesting to see how this fillet radii helps.
At maximum output, the fuel system needs to be able to supply 58 g/s. Injectors that can supply enough gasoline to feed an engine with this much power tend to be hard to control at the low flow rates required at idle. To help achieve this, a separate fuel system ECU is mounted next to the fuel tank. Based on demand it can adjust the fuel pressure to either 600 kPa at high speeds or 250 kPa at low speed.
What's the current limit of our PCMs? This dual PCM system sounds interesting even though I don't know that much about it.
What's the reasoning behind the removed material on the main caps by the side bolts? I'm not an engineer yet, but it's logical that the less material you have the weaker it is. Is it made of some special material that enhances strength greater than something like out main caps that still have that material?
Are those completely new head gaskets or are those the new GM MLS on the LS3?
An 11 rib belt drives the blower, water pump and power steering pump
That's really nice. It kind of sucks they couldn't utilize a seperate belt for the blower, but with the additional pulleys it will help with belt wrap.
Anyone know any specs about the rods? I know they are titanium, but are they the same specs as the LS7 or are they different? Hopefully GM will do what they did before and price them like the LS7 rods. If they are nice I'm definetly going to get a set before the price jumps up 1000%.
The rods are completely different than the LS7. They are Pankl and they will be outrageous.
Well my point was this.... When the 03-04 cobras came out and were putting down serious numbers, a lot of GM guys cried no fair because they "resorted" to a blower / power adder to go ahead of the GM crowd.
Well, don't be surprised if the blue oval boys throw the same back at us. That's all. Personally, fast is fast, power is power. There's more than one way to skin a cat.
Well, don't be surprised if the blue oval boys throw the same back at us. That's all. Personally, fast is fast, power is power. There's more than one way to skin a cat.
I have been reading about this engine for about almost a year. It was never clear wheather Gm was going to call it a "Z07"; "Blue Devil"; or the "LS9". There was also talk that GM was going to do this just to **** Off the Ford Guys. ...that could have been a roomer. Their Ford GT has a blower and is lighter than the LS7 and costs about $100,000 more than the ls7 and still cant beat it at the 1/4 mile. look up the stats. Not only that, the LS7 competes in the class against the TT Porshe, Ford GT, and the dodge viper. Anyways, the new LS9 is suppose to be in the class against Ferrari's, lamborginis, and something else. I will do the research again on this later. So the ls9 just left the American Muscle Cars and went Euro on us. This car will more than likely be a regular at the autobahn! 
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo Well, you sure as hell aren't going to see a bunch of them on the streets at the price they're asking. Not a lot of people have that amount of money to spend on a car.
Staging Lane
Joined: Jul 2006
Posts: 53
Likes: 0
Don't. The article clearly said that GM decided that they couldn't build a reliable NA LS that produced more than the LS7's 500hp. Beyond quibbling that that the LS7 actually produces 505hp, I'll bet that you guys at Katech would take issue with the claim that higher horsepower LS7s are unreliable. Limited production economics undoubtedly played a role in GM's assessment, so they came up with a different answer than for Katech's custom production economics, but it still seems like an odd claim given how much more an LS9 will cost over an LS7. I've got to believe that given that much extra money, GM's engineers could have built a reliable NA LS that made significantly more than 505hp -- but probably not as much or as well-behaved as the LS9's 620hp.
TECH Regular
Joined: Nov 2006
Posts: 444
Likes: 0
From: Westampton, NJ
Don't. The article clearly said that GM decided that they couldn't build a reliable NA LS that produced more than the LS7's 500hp. Beyond quibbling that that the LS7 actually produces 505hp, I'll bet that you guys at Katech would take issue with the claim that higher horsepower LS7s are unreliable. Limited production economics undoubtedly played a role in GM's assessment, so they came up with a different answer than for Katech's custom production economics, but it still seems like an odd claim given how much more an LS9 will cost over an LS7. I've got to believe that given that much extra money, GM's engineers could have built a reliable NA LS that made significantly more than 505hp -- but probably not as much or as well-behaved as the LS9's 620hp.
TECH Addict
Joined: Jul 2002
Posts: 2,261
Likes: 0
i think the well behaved part was the key phrase is what you just said...sure you can get more power out of an LS7 but in order to make significantly more power (LS9 power levels) they definately would have comprimised drivability and smog. i dont look at it like we "sold out" and went FI to keep up...we did it to make sure no one could keep up...lol the best part is when its not at WOT it'll be a ***** cat to drive around with warranty!
yep!
I wonder why they didnt put long tube headers on the ls7 or ls9. They designed new manifolds specifically for these motors but theyre shorties. Seems like if they were trying to get every bit of power out of these motors they would use longer primaries. After all look at what they spent on ti rods.
I wonder why they didnt put long tube headers on the ls7 or ls9. They designed new manifolds specifically for these motors but theyre shorties. Seems like if they were trying to get every bit of power out of these motors they would use longer primaries. After all look at what they spent on ti rods.
