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Old 03-21-2010, 10:57 PM   #18
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Originally Posted by DGthe3 View Post
In the past, Z28's didn't have independent rear suspensions, V6's didn't have 300+ hp, and SS's featured big blocks. Things change
I'm actually waiting for someone to race a new V6 against a first generation V8.

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As long as Z28 punishes others, I won't be complaining


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DI would be worth more than 24 hp on a 6.2L engine ... its worth more than that on 3.6L. At any rate, a DI Z28 should be available at about the same time as a DI SS
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Old 03-21-2010, 11:04 PM   #19
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like i said before, i have a friend who works on it and won't say what kind of engine it is, but it IS supercharged. this is fact. i will eat crow if it comes out without a blower.
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Old 03-21-2010, 11:04 PM   #20
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OK you lost me... what is DI?
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Old 03-21-2010, 11:09 PM   #21
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that's interesting because an L92 (6.2 L engine) that was converted to a DI setup put down north of 475. I'm willing to bet an entire engine designed with DI in mind would put down 500 easily done. and taking a wild guess that it would have a forged rotating assembly since the 3.6 does and other DI engines lately have.

seems to me you are just being a negative nancy. . .the Z28 will see the light of day. just like the camaro did.
500 is about what I would figure for a 6.2L DI. Maybe a little less, maybe a little more. But its a good ball park estimate. However, I doubt GM will release a DI 6.2 anytime soon. If I were them, I would drop the displacement down to 5.7L or possibly even 5.3L.

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OK you lost me... what is DI?
direct injection, as opposed to port or throttle body injection.
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Old 03-21-2010, 11:59 PM   #22
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Old 03-22-2010, 12:10 AM   #23
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direct injection, as opposed to port or throttle body injection.
Thanks.
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Old 03-22-2010, 03:49 AM   #24
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Old 03-22-2010, 07:59 AM   #25
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like i said before, i have a friend who works on it and won't say what kind of engine it is, but it IS supercharged. this is fact. i will eat crow if it comes out without a blower.
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Old 03-22-2010, 09:53 AM   #26
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The car is going to need some kind of forced induction to be both practical and competitive against competitors like the GT500. I'm not saying a naturally aspirated Camaro Z28 couldn't be built to run with a blown competitor, but it would bring new meaning to the phrase 'gas guzzler tax' and it would cost more than a comparably powerful supercharged engine too.
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Old 03-22-2010, 11:11 AM   #27
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How about a DI SC'd LSA?... THAT - would be cool!!!
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Old 03-23-2010, 07:42 PM   #28
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How about a DI SC'd LSA?... THAT - would be cool!!!
If it were up to me I would effectively merge the LSA and LS9 engines with the only differences being the supercharger itself and the lack of a dry sump on the LSA models and just slap said revised LSA into the Camaro and CTS-V.
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Old 03-23-2010, 08:09 PM   #29
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If it were up to me I would effectively merge the LSA and LS9 engines with the only differences being the supercharger itself and the lack of a dry sump on the LSA models and just slap said revised LSA into the Camaro and CTS-V.
The biggest difference between the two models is cost of production - the LS9 is hand built, whereas the LSA is assembly-line-built. The parts are not the largest differentiator from a production standpoint.

Having been heavily involved with the build of a Camaro with a LSA (Conrad Grunewald/Blu808/Hankook's Formula D Camaro), I can say that it is a fantastic fit for this car and knowing what other engines are available, I would be very suprised to see the Z28 come out with anything else.
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Old 03-23-2010, 08:40 PM   #30
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DI would be worth more than 24 hp on a 6.2L engine ... its worth more than that on 3.6L. At any rate, a DI Z28 should be available at about the same time as a DI SS
Which will proabably be a year after you see DI on the corvette. Which my guess will be in the C7
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Old 03-23-2010, 08:52 PM   #31
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Which will proabably be a year after you see DI on the corvette. Which my guess will be in the C7
Thats where I'd put my money.
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Old 03-24-2010, 10:26 AM   #32
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The biggest difference between the two models is cost of production - the LS9 is hand built, whereas the LSA is assembly-line-built. The parts are not the largest differentiator from a production standpoint.

Having been heavily involved with the build of a Camaro with a LSA (Conrad Grunewald/Blu808/Hankook's Formula D Camaro), I can say that it is a fantastic fit for this car and knowing what other engines are available, I would be very suprised to see the Z28 come out with anything else.
Interesting. I recall those Ti rods (well, the ones in LS7, at least) were like $500 for the set or something like that, but there are a lot of improvements LS9 has over LSA. I'm not going to argue that it's a lot more expensive to hand-build a particular engine vs. another, but it seems the engineering to get that intercooler hat, the hood bulge, and the rest of the validation to get the 100 HP/liter wasn't cheap either; not to mention the failed twin turbo "thermal event" I remembered reading about... I think the cost of the R&D is pretty close to the equal in the difference in the assembly. JMVHO
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Old 03-24-2010, 02:35 PM   #33
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The biggest difference between the two models is cost of production - the LS9 is hand built, whereas the LSA is assembly-line-built. The parts are not the largest differentiator from a production standpoint.

Having been heavily involved with the build of a Camaro with a LSA (Conrad Grunewald/Blu808/Hankook's Formula D Camaro), I can say that it is a fantastic fit for this car and knowing what other engines are available, I would be very suprised to see the Z28 come out with anything else.
I suppose my comment revolves more around the engine itself than the Z28, CTS-V, or ZR1. IMHO, given the fact that the regular production plans for supercharged LS series V8's has been seriously curtailed in the last several years, I just no longer see the point in having both engines in such distinct forms (as it relates to assembly and internals) Once upon a time we were talking about the possibility of heavy duty trucks and large, multiple large, rwd sedans with blown LS series V8's as an option which makes assembly on a production line look plausible and even advantageous. Now that the possibilities are limited to the CTS-V and the possibility of the next Z06 and the rumored Z28, making room on an assembly line hardly seems worth the effort or costs. In my experience t would almost certainly be less expensive for GM to just hand build all the motors than it would be to maintain a genuine production line option for the very limited volume LSA.
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Old 03-24-2010, 04:22 PM   #34
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I suppose my comment revolves more around the engine itself than the Z28, CTS-V, or ZR1. IMHO, given the fact that the regular production plans for supercharged LS series V8's has been seriously curtailed in the last several years, I just no longer see the point in having both engines in such distinct forms (as it relates to assembly and internals) Once upon a time we were talking about the possibility of heavy duty trucks and large, multiple large, rwd sedans with blown LS series V8's as an option which makes assembly on a production line look plausible and even advantageous. Now that the possibilities are limited to the CTS-V and the possibility of the next Z06 and the rumored Z28, making room on an assembly line hardly seems worth the effort or costs. In my experience t would almost certainly be less expensive for GM to just hand build all the motors than it would be to maintain a genuine production line option for the very limited volume LSA.
I'm sorry - so are you saying you are not supporting the hand-built nature of LS9/7/3(GS) or you think they should merge the LS9/LSA together to make one shared enging, or blending both of them together? I think that LS9/7 being hand-built is more for image than anything. It sounds cooler to a car guy to hear that the engine was built by a person and not a computer. With all the torque and angle checks of all the equipment and such, I kinda' think it's not all that necessary to devote manpower/money to. That's not to say I don't like the idea, and that it doesn't sound cool to me. Is the price worth the product though? Is it really necssary? Maybe there are assembly idiosyncrasy that I don't know/understand.

If you ask me if eliminating the LSA shortblock in favor of the LS9 I'd say yes, but it's going to cost a lot more. I think the best bet of making Z28 remotely affordable to regular Camaro-people is going to be LSA, straight out of the CTS-V.

I talk out my butt though
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