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Discussion Starter · #1 ·
So, I know there's a TON of engines GM has, some that are a bit of an overlap from the others.

What do you guys think of this engine lineup, as I use in the My Ideal Lineup series?

I4
DI Ecotec 1.6L - 140 HP
DI Ecotec 2.4L 0 -180-200 HP
DI Ecotec Turbo 1.8L - 240 HP
DI Ecotec Turbo 2.0L - 300 HP

V6
DI 2.8L - 260 HP
DI 3.6L - 320 HP
DI S/C 3.6L - 380-400 HP

V8
DI 5.3L - 350-400 HP
DI LS3 - 450 HP
DI LS7 - 550 HP
DI LSA - 600 HP
DI LS9 - 650-700 HP
DI Northstar II/Ultra 4.6L - 350 HP
DI NII/U 5.0L - 450 HP
DI S/C NII/U 5.0L - 560-600 HP

Diesel
"Mightytec" 1600 - 150 HP/220-240 lbs-tq
"Mightytec" 1800 - 200 HP/280-300 lbs-tq
Duramax 6800 - 380 HP/700-750 lbs-tq
(Used "Mightytec" as thats what I've called it in my series, but w/e GM would call it...)

Now, I'm not listing any V10+ for now. Thoughts? Improvements? Your own ideas? Please post!
 

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Discussion Starter · #3 ·
We've already got the LS series, 5.3L, and the Northstar (ultimately, I'd like to see an Ultra V8 or Northstar II replace the current Northstar lineup). As such, Vortec I dont see the need for. The 5.3L would fit well enough in a tuned up 380 HP version for the upper level. If we must, drop in an LS3 to kick the butts out of the other guys top V8's... and a DI 320 HP V6 would do wonders as the base engine IMO. Or a detuned 5.3L.
 

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Where is the new 1.4 Turbo? They have also talked about a 3 cylinder Turbo-diesel but it was very fleeting. And I would be very interested in the new Smaller DI OHV V8's that they talked about. Anyone here how the program is doing?
 

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I would add smaller 1.4 l turbocharger with 120-140 Hp and out with 1.6 l ecotec.
V6
-3.0 l with 260 + hp (at least that is the rumored engine for cts s. wagon)
-3.0l turbocharger with 400 + hp (also rumored) and if not then 3.6 l TT with 400+hp)

V8
-5.0 l DI ohv (3 valve) and around 380 in N.A form
-5.0 l DI ohv (3 valve) with turbochargers (or superchargers) and around 450+ hp
-5.5 l DI ohv 420+ HP
-5.5 l DI ohv SC/TC 550-600 HP

Northstar 2

- Something like this :):D AER v8 TT with different kind of boost (from 400 HP to 700 HP) http://www.racecar-engineering.com/articles/technology/258147/aer-p32t-v8.html

I know it is a race engine but since there won't be northstar 2..and i like it:)
 

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3.6 is more likely to be a turbo that S/C as the work has already been done on this engine family for Saab (the 2.8 turbo) and should be relatively easy to apply to the 3.6.

The ultra engine family is dead ... GM should consolodate efforts around the LS architecture. Any suggestions on how to extend this for a truly premium car powerplant?

GM is rumoured to have tested a v-12 based on the HFV6 family -- this could be an alternative to trying to make the LS extend to premium applications. Thus Cadillac could have a [email protected] 320 hp, a turbo [email protected] and [email protected]+ hp all based off the same basic family of engines.

Someone asked about the turbo 3 -- isn't that the IC power generator for the Volt?
 

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I doubt we will see any v12 in future from GM..Probably not enough money and lack of interest. And there isn't any vehicle in GM lineup to put that engine in.
I 'm just curious what will gen. V. will bring.
 

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I like your thinking... But a few things...

I think there is too much overlap between the 4 cylinders and the V6. I don't think there is a need for a 300hp 4 cylinder, I think that role would be better served with a V6. Those that think you can get fuel efficiency from a 300hp turbo 4 banger are kidding themselves. Just look at the EPA numbers for an Evo or an STI.

The V6 engines look good, but you have listed way too many V8 engines in my opinion. I think a good lineup would be 2 four bangers, 2 V6 engines and 4 V8 engines.

Gas miser 4 banger: Small displacement Turbo 4
General purpose 4 banger: 2.4 eco-tec making 200hp

Base V6 making 260-300hp: 3.6HF tuned to 280hp or so
Performance V6: DI 3.6HF tuned to 330+ hp

Base V8: LS3 making 400-430hp
Sport V8: ZR1 Engine
Lux V8: Northstar-II making 500+ hp
UltraLux V8: TwinTurbo Northstar-II making 700+hp
 

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Think small

I3
1.0l DI Turbo - 100hp (Gamma)
I4
1.4l DI Turbo - 140hp (Cobalt, Gamma)
1.6l DI Turbo - 200hp (Cobalt, Malibu)
V6
2.8l DI Turbo - 260-280 hp (Malibu,Aura, Invicta, Lambda quadruplets)

These are the engines to power the cobalts, malibu's and the gamma's that are selling right now.
Also
Diesel
1.6l Turbo (Cobalt, Astra)
2.2l Turbo (Malibu,Aura,Invicta)
2.9l V6 Turbo (Lambda quadruplets)

These engines will be expensive. But the fuel savings would provide a lot of value to the customer.
 

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Gas miser 4 banger: Small displacement Turbo 4
General purpose 4 banger: 2.4 eco-tec making 200hp

Base V6 making 260-300hp: 3.6HF tuned to 280hp or so
Performance V6: DI 3.6HF tuned to 330+ hp

Base V8: LS3 making 400-430hp
Sport V8: ZR1 Engine
Lux V8: Northstar-II making 500+ hp
UltraLux V8: TwinTurbo Northstar-II making 700+hp
I think you're putting way too much emphasis on the Northstar. It has lived it's life, and all of it's oil-consuming/leaking/burning glory.
 
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