New Corvette 450hp, sub 4 seconds to 60.

[KMPrenger]

Very surprised it is still a 6.2 and heavier than the current engine. That said there is a good bit of new tech in there...much of it sounds similar to the tech and tuning used for the LFX V6 engine.

Not complaining about 450 HP and the TQ range sounds awesome, but I think with the same displacement, and Direct Injection, we were expecting a bit more than that since the LS3 is 430 or so. I can see it from the Ford boys already "We're making nearly that much power with only a 5.0 engine"

But this engine in a lighter Corvette and lighter 6th gen Camaro will be fantastic.

[ShnOmac]

Originally Posted by KMPrenger

But this engine in a lighter Corvette and lighter 6th gen Camaro will be fantastic.

[big hammer]

Originally Posted by KMPrenger

Very surprised it is still a 6.2 and heavier than the current engine. That said there is a good bit of new tech in there...much of it sounds similar to the tech and tuning used for the LFX V6 engine.

Not complaining about 450 HP and the TQ range sounds awesome, but I think with the same displacement, and Direct Injection, we were expecting a bit more than that since the LS3 is 430 or so. I can see it from the Ford boys already "We're making nearly that much power with only a 5.0 engine"

But this engine in a lighter Corvette and lighter 6th gen Camaro will be fantastic.

the torque curve of the new lt1 makes the boss 302 look like a civic engine. this engine has WAY more applications than the 5.0. and remember, this is the base engine.

[LBV]

Wonder why no mention was made in that article about the fact that DI engines always have carbon & build-up on the back of the valves due to no fuel now passing over them?

In a perfect world, a combo of port injection & DI would be best but maybe Toyota has the patent on that system (as used on the new Scion FR-S & Subaru BRZ as well as others)??

[Captain Awesome]

Originally Posted by LBV

Wonder why no mention was made in that article about the fact that DI engines always have carbon & build-up on the back of the valves due to no fuel now passing over them?

In a perfect world, a combo of port injection & DI would be best but maybe Toyota has the patent on that system (as used on the new Scion FR-S & Subaru BRZ as well as others)??

Where does the carbon come from? EGR? Crankcase vent?

Let's just nix that crap.

[Mr. Wyndham]

Motortrend covered that in a Q&A. A full transcript is posted in the C7 Corvette Announcement thread.

MT: What about recent concerns about intake-valve deposits on direct-injection engines?

LT1 Team: Deposits are caused by oil that either seeps by the intake valve systems or is ingested through the PCV system. The LT1’s improved air/oil separation is a key enabler in preventing these deposits. We’ve experienced no deposits in our development engines.

http://wot.motortrend.com/qa-with-co...-8-280789.html

I forget where I read it, today...but they redesigned the PCV system to better separate oil/air being sucked into the intake. It was a significantly high percentage of reduction. This, combined with higher tolerances, should help keep oil out of the intake nearly altogether.

[truth411]

Originally Posted by KMPrenger

Very surprised it is still a 6.2 and heavier than the current engine. That said there is a good bit of new tech in there...much of it sounds similar to the tech and tuning used for the LFX V6 engine.

Not complaining about 450 HP and the TQ range sounds awesome, but I think with the same displacement, and Direct Injection, we were expecting a bit more than that since the LS3 is 430 or so. I can see it from the Ford boys already "We're making nearly that much power with only a 5.0 engine"

But this engine in a lighter Corvette and lighter 6th gen Camaro will be fantastic.

I see this as more of a 5th gen L99 than a 5th gen LS3 so 50+ hp over the L99 is a good bump up in power. If it didnt have AFM it would have a 7000 rpm redline and more power.

[big hammer]

this new lt1 has a pretty small cam.

[GaBoy25]

I long to be impressed with such as this

[Mr. Wyndham]

Originally Posted by truth411

I see this as more of a 5th gen L99 than a 5th gen LS3 so 50+ hp over the L99 is a good bump up in power. If it didnt have AFM it would have a 7000 rpm redline and more power.

I dunno...it sounds as though AFM might be standard in the new generation of V8s...so perhaps there won't be a comparison between L99s and LS3s in the future.

[KMPrenger]

Originally Posted by big hammer

the torque curve of the new lt1 makes the boss 302 look like a civic engine. this engine has WAY more applications than the 5.0. and remember, this is the base engine.

No worries..I'm not hating on the engine...I'm a fan. I agree with you...this engine will be very versatile from what it seems.

Originally Posted by LBV

Wonder why no mention was made in that article about the fact that DI engines always have carbon & build-up on the back of the valves due to no fuel now passing over them?

In a perfect world, a combo of port injection & DI would be best but maybe Toyota has the patent on that system (as used on the new Scion FR-S & Subaru BRZ as well as others)??

This was covered above, but I think GM is very aware of this and sounds like they have a way to help prevent the carbon build up. As for us DI V6 owners who deal with the same troubles, GM claimed the LLT/LFX design shouldn't suffer as badly, but we are still running catch cans....and they do catch a lot. It sounds like these engines may not have a need for an aftermarket can.

Originally Posted by truth411

I see this as more of a 5th gen L99 than a 5th gen LS3 so 50+ hp over the L99 is a good bump up in power. If it didnt have AFM it would have a 7000 rpm redline and more power.

Thinking of it that way, it does make more sense. I think everyone is going to love the juicy power bump in the low and midrange, but yet these things still have good top end.

Its kind of like a combination of the last LT1 (known for low end grunt) and the LS1 which had more top end....best of both worlds makes for a great all around engine.

[dmax86]

does any think there is reason to hold out for the DI 6.2 if you were in the market for the new corvette/camaro?? especially the first gen run of them...?

[Captain Awesome]

Originally Posted by big hammer

damn. that engine will greatly improve the camaros performance.

It's got just 14 more HP and weighs more than the engine it replaces in the corvette. In what way are you sure it will help the Camaro?

[Stew]

Originally Posted by Captain Awesome

It's got just 14 more HP and weighs more than the engine it replaces in the corvette. In what way are you sure it will help the Camaro?

Also, usually the Camaro suffers a little in the HP rating compared to the Vette, would guess 435-440 in the next Camaro.