And a Z/28 owner wants...?

 

Ok so my idea for a 427 was shot down, I just wanted to mull over some spec numbers but hey lets move on.

So lets talk about the LSA.

How much more will it weigh exactly? Do we know?

What other changes would be made to a Z-28 as far as costs and weight go?

Would it be unreasonable to assume that any use lighter materials could be an option such as a hood, trunk lid, rear quarter panels, seats, less sound deadening?

What makes the most economic sense to Gm right now as of today...In my estimation this is what I would expect.


2011 Z-28
LSA 515 HP Supercharged and Intercooled 6.2L
4 Piston Brembo Calipers with 15" Rotors 2 piston 13" rear
Special Composite Hood
Composite Trunk lid
Special seating with Alcantra inserts and larger adjustable side bolsters with Stitched emblems
Unique Striping package
Unique 20" Wheels
Unique Badges
Unique Gauges (With Boost Gauge)
T6060 tranny with dual disc clutch and 3.55 rear end ratio

 

The LSA is a 556 hp engine. and why would this Z28 have smaller brakes in the back than a standard SS? And why not just use the 14.7 / 14.4 setup on the CTSV?

BTW The LSA overhaul on the CTSV added ~200 lbs. to the car.

 

It's not on hold if it's dead...

 

I would applaud an ls3 styled 427 for the z28. Nothing fancy.. just plain old 427 power.

 

I threw some numbers out there without even looking at the exact specs of the SS to compare. I am sorry If I was off on the size guestimate but really it was more for conversation to see what others expected more than an offering of what I believed to be hard facts.

As for the LSA being 556 hp I seriously doubt they will allow the Camaro to carry the same hp rating. I would imagine it will get a larger pulley and be underrated. Same thing happened with the old 4th gen having the basicly the exact same motor as the C5 Vette, they were both rated differently but made the exact same ammount of power to the wheels...sometimes the Camaro more than the vette and sometimes the other way around.

 

I would to, and I think it would go over well especially in a time when fuel econ is such a topic of debate.

 

GM has vowed to SAE certify every engine, startingwith the LS7 a couple years ago. If an LSA in a camaro is detuned, then that's all the power it wll make (stock), but it will not be "underrated."

 

GM always underrates their published numbers. Now that being said, if a vette engine is rated at 430HP and the Camaro comes in at 422HP, both will show better on a dyno, but the vette should come out, on average, about 8HP more.

 

As best I can tell the SAE certification prevents them from underrating anything anymore. If you think that they are I would be curious to know how they get around the cert.

 

its possible they just wouldnt certify it, most of the other manufacturers don't certify their engines, but GM has been certifying everything so it's extremely doubtfull.

 

The SAE certification certainly prevents OVER-rating - but how does it prevent underrating?

 

because its +-1% of the rated power. They have a 2% window that the engines have to be within.

 

The SAE cert has to be within 1% either way. They can't really use the tricks that they did before such as controlling air temp and humidity to inflate or deflate the numbers.

 

its not smudging numbers if 422hp @5000rpm is true, doesnt mean it doesn't make more hp at 6500rpm..... catch my drift. all you have to do is state a true hp at an rpm. winding the thing out makes more hp im willing to bet.