[DGthe3]

Originally Posted by FenwickHockey65

I said the LT1 would fit, but back then engineers were still deciding on LT1 vs LF3. Seems like LF3's the predominant rumor now.

All rumors. Technically there isn't a such thing as an ATS-V.

You are lucky that I am a) a friend and b) lazy. Otherwise, I'm sure I could find something that says you think that maybe the ATS-V could probably have a chance of possibly having a V8 instead of a V6 turbo. Either here or on GMI.

But like I said, you are a friend and I'm kinda lazy.

Originally Posted by Kyle2k

Complaining about fuel economy for the V series...not likely. I'm not talking about throwing a Gen 5 LSA - I'm just talking about building the motor so there is room to grow so even if it is just a matter of a few more pounds of boost it can be done for the performance models. I guarantee you a tri-turbo (as ridiculous as that sounds) will make more than 425 hp from a certain competitor.

Adding a few pounds of boost on a lower performance engine adds cost. Lots of it. Simply turning the dial to 11 (or, perhaps 8 if you are feeling conservative) is a lot easier for us on the interwebs than it is for the boffins at GM working in R&D.

Do we need to lower the compression, are the pistons capable of handing the excess pressure, how do we re-map the injection, what cats do we need to order, what is the cylinder temp, cylinder pressure, how does it affect emissions, etc. Upping the boost is easy for people once the car is built. But for GM? Ugh, I'd rather not think about it.

Originally Posted by Kyle2k

Also, it's not like the LT1 would add considerable weight over a TTV6. I just feel like some of these explanations that I am getting in this thread are from the perspective of a bean counter more than an enthusiast. They will have their say - there is no need for that sort of stuff to be parroted to us. Once again, I feel like a successful business plan would be a cut throat attitude not "well it should have enough to compete"

It might not add considerable weight. But it would add considerable complexity, which does add weight. Now you have to make an engine bay accommodate 3 different configs of engine: I4, V6 and V8. Its far easier to reinforce a V6 mount than it is to make an all new V8 mount (which would be needed since the ecotecs, I assume, don't have a 4.4" bore centreline) and therefore don't have such associated mounting points).

Originally Posted by Number 3

I think what your getting is reality.

Yep, you can shoe horn a small block into anything. Remember the Mallet Solstice conversion?

Reminds me of a joke I once heard, which involved a mentally handicaped individual with a 'male enhancement' pill, and a redneck with a small block.

The punch line was that they'd both stick it into anything.

Originally Posted by Kyle2k

The LT1 is the base model V8 of the 5th generation small block - I don't think I am being irrational in thinking it would be a doable engine for the ATS-V. Mind you, if my post made it sound like V8 or nothing then my tone was off - I'd love to have a TTV6, but I hope it is overbuilt.

If it exists, it will almost certainly be an EcoBoast competitor. Which means it won't be overbuilt and would be in the 350 to 400 hp range. Maybe they'll surprise us with a 450 hp variant but I'd be doubting it.

Originally Posted by mikeyg36

Displacement is cylinder volume, not engine dimensions. LT1 is a pushrod engine, the RS5 has a DOHC. The Audi is probably bigger in dimensions despite the much smaller displacement.

#3 knows that ... he used to work for GM, possibly in powertrain (though I'm not sure on that one). He is most definitely an automotive engineer that has forgotten more about that subject than most of us on Camaro5 will ever know.