Why not the LSA in the Z28? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

BAD ZL1 · 10-21-2013, 10:23 AM

Why do you think GM didn't go with the LSA super charged engine instead of the LS7 in the Z28? Would that be pushing too far into the corvette world performance wise? Its like they always leave something on the table.

They could have made a stripped down 300 lb less ZL1, no radio, AC, sound blocking crap, thinner glass etc, put those ceramic brakes on it and those tires and kept the price about the same if not less and gone with the LSA again and called it a Z28.

Imagine the ZL1 with 580 hp 300 lbs less with those tires. Now that beats the crap out of the Z28 as it stands right?

What am I missing with my thinking?

*mlee* · 10-21-2013, 10:27 AM

Two words... Heat Soak

2012-1822 · 10-21-2013, 10:53 AM

two more, Weight Savings

1sikss · 10-21-2013, 10:57 AM

why would anyone pay 10 15 k more for a stripped down zl1.. the zl1 one is for luxury and performace and the z/28 is for strait track... i would never get it if it had a zl1 engine just for 300 pound reduction.. the 7.0 is what makes it unique

Mikamaro · 10-21-2013, 11:05 AM

The LS7 is 64lbs lighter than the LSA which coincidently is about the same amount of HP it loses.

Number 3 · 10-21-2013, 11:14 AM

Not to mention the LS9 is out of production AND was about $5000 more than the LS7 when purchased as a crate engine.

So huge cost, more weight and only 50 more hp than the LSA. And the LSA weighs more than an LS7 due to the SC itself and the inter cooler.

Bhobbs · 10-21-2013, 12:23 PM

Weight

Weight in the wrong place. Up front and up top.

Heat soak

ZL1 already has it

davidcroft · 10-21-2013, 12:54 PM

Quote:

Originally Posted by mlee

Two words... Heat Soak

YOU BEAT ME TO IT. For those of you guys up north, come to Houston in 100degree plus 100% humidty days with a stock LSA and you will know why. Every pull starts to get slower.

BlackinBlack · 10-21-2013, 12:57 PM

Easy answer. They originally planned on it. The ZL1 was to be the Z28 but in the eleventh hour they changed the name. You kind find tons of old posts about the LSA Z28 and then how it was renamed the ZL1. Also many of the unique parts on the ZL1 are molded with Z28 on them. (There was a recent post about the inner wheel liners being marked as such.)

That being said it is clear GM wanted the Z28 to be a more limited edition car and track only designed. I laugh at those that plan on buying a Z28 with AC (added over 50 lbs) and then install a full radio (add a conservative 25 lbs) then to make the car more livable some sound deading and carpet in the trunk so you can hear the radio. (another 20 to 30 lbs) Once they are done all this they will have eliminated what made the car special and faster at the track than a ZL1. (My guess is adding back to make it nearly as streetable as a ZL1 you are going to put an easy 150 lbs into the car and with 75 less hp that is a ton.) Then there is the people that are talking adding a supercharger to a Z28?!

Ohh and for those still talking about heatsoak on the ZL1. If it is such a problem why is the car so consistent on a road course lap after lap. If heatsoak was so bad then the car would be seriously slowing down every lap. (which it does not.) This misconception is due to the fact that people are comparing the car on a dyno or dragstrip. Both those locations there is little or no airflow through the heat exchanger. (Look at the front of a ZL1 there is a reason it has that massive lower grill... to shove 60+ mph air through the heat exchanger and radiator.) Most supercharged drag cars use meth/water injection or large reservoir were you can add ice to keep cool. (Don't believe me look into the COPO Camaro supercharged engines. They have a giant reservoir with a large opening making it easy to add ice.) On a road course those are not practical as ice melts and meth/water runs out. The ZL1 cooling system was designed for running on a road course. For that matter the Z28 driveline was not made for drag racing. And a COPO Camaro would drop dead running around the Ring.

Zfatuated · 10-21-2013, 01:50 PM

High-revving is a desirable characteristic of a track car, 427 offers that.

Col. Brain · 10-21-2013, 02:47 PM

the right cam in the LS7 will get you to 550whp

no real need for a supercharger on this unless you need 700+hp

10-21-2013, 10:23 AM	#1
BAD ZL1 BAD ZL1 Drives: 2013 VIN 48 Victory Red ZL1! Join Date: Jan 2012 Location: California Posts: 707	Why not the LSA in the Z28? Why do you think GM didn't go with the LSA super charged engine instead of the LS7 in the Z28? Would that be pushing too far into the corvette world performance wise? Its like they always leave something on the table. They could have made a stripped down 300 lb less ZL1, no radio, AC, sound blocking crap, thinner glass etc, put those ceramic brakes on it and those tires and kept the price about the same if not less and gone with the LSA again and called it a Z28. Imagine the ZL1 with 580 hp 300 lbs less with those tires. Now that beats the crap out of the Z28 as it stands right? What am I missing with my thinking?

10-21-2013, 10:27 AM	#2
mlee CamaroFans.com Drives: ZLE & ZR2 Join Date: Oct 2008 Location: Conroe, TX Posts: 37,486 View My Garage	Two words... Heat Soak __________________

10-21-2013, 10:53 AM	#3
2012-1822 Drives: Black ZL1 Join Date: Apr 2013 Location: City of Champions, Alabama Posts: 3,698	two more, Weight Savings __________________ Check out Alabama Camaros, for Camaro enthusiasts all around Alabama https://www.facebook.com/groups/1739...group_activity

10-21-2013, 11:05 AM	#5
Mikamaro MikeNoMaro Drives: A 2016 Challenger R/T M6 STP Join Date: Sep 2009 Location: America Posts: 2,375 View My Garage	The LS7 is 64lbs lighter than the LSA which coincidently is about the same amount of HP it loses. __________________ Track Day Videos: http://www.youtube.com/user/mrgoodman2000/videos Built #83817, Born January 18th, Christened June 11th 2010, Stolen October 3rd 2016.

10-21-2013, 11:14 AM	#6
Number 3 Hail to the King baby! Drives: '19 XT4 2.0T & '22 VW Atlas 2.0T Join Date: Dec 2008 Location: Illinois Posts: 12,169 View My Garage	Not to mention the LS9 is out of production AND was about $5000 more than the LS7 when purchased as a crate engine. So huge cost, more weight and only 50 more hp than the LSA. And the LSA weighs more than an LS7 due to the SC itself and the inter cooler. __________________ "Speed, it seems to me, provides the one genuinely modern pleasure." - Aldous Huxley

10-21-2013, 10:57 AM	#4
1sikss Drives: 2011 camaro ss Join Date: Feb 2013 Location: houston Posts: 464	why would anyone pay 10 15 k more for a stripped down zl1.. the zl1 one is for luxury and performace and the z/28 is for strait track... i would never get it if it had a zl1 engine just for 300 pound reduction.. the 7.0 is what makes it unique

10-21-2013, 12:23 PM	#7
Bhobbs Drives: 2015 SS 1LE Red Hot, 1970 Chevelle Join Date: Apr 2012 Location: Chino, CA Posts: 6,989	Weight Weight in the wrong place. Up front and up top. Heat soak ZL1 already has it

10-21-2013, 12:57 PM	#9
BlackinBlack Drives: 2016 Corvette Z06 Blade Silver Join Date: Jun 2009 Location: Florida Posts: 822	Easy answer. They originally planned on it. The ZL1 was to be the Z28 but in the eleventh hour they changed the name. You kind find tons of old posts about the LSA Z28 and then how it was renamed the ZL1. Also many of the unique parts on the ZL1 are molded with Z28 on them. (There was a recent post about the inner wheel liners being marked as such.) That being said it is clear GM wanted the Z28 to be a more limited edition car and track only designed. I laugh at those that plan on buying a Z28 with AC (added over 50 lbs) and then install a full radio (add a conservative 25 lbs) then to make the car more livable some sound deading and carpet in the trunk so you can hear the radio. (another 20 to 30 lbs) Once they are done all this they will have eliminated what made the car special and faster at the track than a ZL1. (My guess is adding back to make it nearly as streetable as a ZL1 you are going to put an easy 150 lbs into the car and with 75 less hp that is a ton.) Then there is the people that are talking adding a supercharger to a Z28?! Ohh and for those still talking about heatsoak on the ZL1. If it is such a problem why is the car so consistent on a road course lap after lap. If heatsoak was so bad then the car would be seriously slowing down every lap. (which it does not.) This misconception is due to the fact that people are comparing the car on a dyno or dragstrip. Both those locations there is little or no airflow through the heat exchanger. (Look at the front of a ZL1 there is a reason it has that massive lower grill... to shove 60+ mph air through the heat exchanger and radiator.) Most supercharged drag cars use meth/water injection or large reservoir were you can add ice to keep cool. (Don't believe me look into the COPO Camaro supercharged engines. They have a giant reservoir with a large opening making it easy to add ice.) On a road course those are not practical as ice melts and meth/water runs out. The ZL1 cooling system was designed for running on a road course. For that matter the Z28 driveline was not made for drag racing. And a COPO Camaro would drop dead running around the Ring. __________________ 2016 2LZ Z06 Blade Silver 2013 ZL1 BLACK on BLACK <SOLD> Roto-Fab CAI 2010 2SS/RS BLACK on BLACK <SOLD> 3" MBRP 304 Stainless Exhaust Roto-Fab CAI

10-21-2013, 01:50 PM	#10
Zfatuated Drives: BAC Mono Join Date: Apr 2013 Location: Reno Posts: 869	High-revving is a desirable characteristic of a track car, 427 offers that. __________________ 2014 Z/28, White "I wasn't asked to make it cheap...I was asked to make it FAST!" Mark Stielow, the new Z/28.

10-21-2013, 02:47 PM	#11
Col. Brain Drives: 2012 Ram 1980 Malibu Join Date: Apr 2013 Location: Otherside of the screen Posts: 362	the right cam in the LS7 will get you to 550whp no real need for a supercharger on this unless you need 700+hp