Holy **** you just made the 'put a blower on the ls1' argument...

 

Wouldn't work. Being a Impreza WRX under the Saab badge, the fact it has a flat 4 along with a transmission/front AWD system designed around it would mean a complete front chassis redesign.

I will get a 2-seater cheapo convertible someday, and right now a turbocharged Solstice is at the top of the list. Has anybody seen $$$ estimates?


-B

 

Actually my arguement is that it's apples to oranges.

You're comparing a turbo 4 to a n/a 6. The 4 has the advantage of the turbo and the 6 has the advantage of, well, 2 more cylinders. Not to mention that neither motor is likely to be used in any competing vehicles. I mean come on, we're comparing a potential motor for the Saturn Sky Redline - a sporty mini vert to the V6 in a Toyota Avalon?

Bit of a stretch, maybe?



And even if it's not, the 3.5 V6 makes 306/277, as I already mentioned. So it's not like I'd have much to defend. The IS' 3.5 makes more power than that 4 and for that matter any of GM's current 6s as well, IIRC.

 

Agree with Threxx on this one.

Shove that engine in the Cobalt with 300hp. That would be the magic number. (Although probably not realistic)... 275... OK.

This little devil would give our new 5th gens a run for the money. Buy I think I'll still put $$$ on my future 6.2L cranking 425 .

 

All I mentioned was that Toyota's 3.5l (in their flagship sedan) gets similar hp to Pontiac's 4-banger. I wasn't comparing vehicles inso much that I was making a comment that Pontiac had a 4cyl that was producing comparable numbers to a Toyota 6cyl -- and this isn't just a normal 6cyl -- it's the 6cyl in Toyota's flagship sedan -- and this 6cyl had just been reworked to accomodate direct injection -- so it's not like it's outdated or anything.

What's the difference if it's normally aspirated or if it's blown (super- or turbo-charged)? What's the difference if it has variable valve timing, overhead cams, or overhead valves? It's all part of the engine, isn't it? What difference does it make if the internal volume of the engine is 3.0l or 3.5l?

What DOES seem to be important are the engine's metrics:

Horsepower/torque output: at what rpm, and how broad is it's range?
Fuel comsumption
Refinement (smoothness)
Durability

I'm quite certain that the turbo won't compete in terms of refinement. Time can only tell on the durability end of things. Fuel consumption is just flat-out uncomparable because they are placed in vehicles of such vast differences. Horsepower and torque-wise, they look fairly equal.

Lastly, the LEXUS 3.5l does produce 306hp... but why on earth would you want to compare a luxury make versus a Pontiac? To borrow a quote, it's a "bit of a stretch, maybe?"

 

Comparing a 32k dollar old man Toyota Avalon to a 28k dollar Pontiac 2 door convertivle actually seems like more of a stretch can comparing a 35k dollar Lexus that at the very lease is somewhat sporty in nature (unlike the avalon). But both do seem like a stretch regardless.

And if you really want to compare a sport-oriented turbo 4cyl to a naturally aspirated luxury/reliability-oriented V6 that are both intended for about of opposite of purposes as you can possibly come up with... that's even more of a stretch.

 

LMAO... I love going back and rereading posts that I hardly remember making. I was about ready to pass out when I wrote this - I'd just gotten back from pint night.

 

Actually the Trailblazers 6cyl makes 277tq also, and does it on 87 octane.

but since we are talking ~300HP engine I'll take the LS4

 

Here is the way I see this going down...both good and bad...

1) '07 Solstice GXP will be the darling of the automotive press, will run mid 5's 0-60, but will still lose to the more "lithe" Miata in every comparison test between the GXP and Speed version Miata.

2) Cobalt SS tuners will get mad that their car makes 55 less rated HP (who knows in actuality what the difference truly is). Knowing GM, the turbo 260hp engine will be on constraint during its ramp-up phase, and will never make it into the '07 Cobalt SS.

3) It will never be considered for the G6.

4) It will never be considered for the Malibu.

5) It will be shared with the Sky, and maybe in '08 it will be in the Cobalt SS and HHR SS. By then, who knows what else will be on the market, and the splash GM could have made will be significantly diminished, despite the fact they'll be hot little cars.

6) Subaru will have a 350+hp WRX, while Mistu will make over 350 with a new EVO, while the Cobalt SS is still stuck with 260...

7) While a Colorado "X-Runner" with this motor would be SWEET (and something even I'd look at for a driver...hey, I have a house!!), it won't even be considered because GM would need to re-work the Colorado in some unknown way to make it work. We all know the GM bean counters won't consider it.

8) The Saab will get the motor, and no one will notice.

I'm not flaming GM here, but I just feel like I know how GM works all too well by now. I want to be wrong here. Charlie, any extra info you can add?? If not, I might abduct you in Detroit Or just get you and Scott together at a local pub

 

Will the 350+ hp WRX be the STi? or the base WRX? I'm betting it would be for the STi.. the STi and EVO are both $30+k cars.

Cobalt SS is about $22k.

about $10k of difference. Is it worth it though? I dunno, how much is $10k "worth"?

either way, GM still won't have a direct competitor tothe STi and Evo.

 

Why certify a new 4 cylinder for the GMT355 when the lower cost 5 cylinder is getting a bump in displacement and should be making the same power before you could get the 2.0 DI T motor into a 355?

 

The I5? Might be hard to fit the I5 in some models. Plus turbos are cool and popular with the tuning crowd.

 

Ding ding ding...that's more or less my point.

91,
What kind of bump in displacement and power is the I5 getting? I must have missed that one...

 

If you compare the increase of the previous I6 and the updated one I believe that it will have .2 litre increase and around 20 hp increase...... Wasn't the old I6 at 275 and now hte current one at 291?

Since the Atlas engines are nearly identical to each other just missing a cylinder in the I5 and 2 in the I4 I would think the upgrades made to the I6 would be available on the I5 and I4 and be easily adapted to them.

 

Threxx I think you might have your models confused the 355s are the Colorado/Canyon/H3/Isuzu pickups. They all currently have the I5.

As far as the bump in displacement there were pictures of a vortec engine cover in an H3 with 3700 on it so I would guess a .2 bump to 3.7. Joe was working on that maybe he can chime in.

I will guess the power will be around 250 but it could be more the 4.2 makes 291 hp so 291/4.2=256...

I guess we will see shortly, hopefully all 2007 GMT355s will get a slight front end tweek, interior material bump to match the H3, and the more powerful I5.