detuned LTs for the camaro?

Sesiom Summers · 12-20-2014, 01:24 AM

today at my work my boss (a corvette proud owner) told me for some reason every motor the camaro gets from the corvette get detuned or downgraded... according to him the LT1, LS1 and LS3 in the camaro are less powerfull compared to the same engines in the corvette so not surprise if the LT1 come with 443 instead of the 45x hp or the LT4 come with a smaller blower... anyway why GM do this? its just to protect the corvette so the camaro cant be faster by any means? or there is a logical reason behind this

don't get me wrong I love camaros as always but after he told me this I feel a bit down about the camaro... it look like GM thinks of it as the cliche side-kick of the corvette... we are the robins in this relationship!

FenwickHockey65 · 12-20-2014, 01:29 AM

Quote:

it look like GM thinks of it as the cliche side-kick of the corvette... we are the robins in this relationship!

Well you are.

MrChrisLS3 · 12-20-2014, 11:23 AM

Well yeah, the Corvette is the halo car. Considering the price jump from a Camaro to a Corvette, it is going to have a higher rating. At least that had always been the thinking.

Going back to 90's for instance, the Corvette got the LT1 with a four bolt main and rated at 300hp, the Camaro, two bolt main at 275 IIRC.

The LS1 versions, the Vette was at 350 and Camaro at 308, with the SS coming in a little higher. Even the LS3 Camaro gives up a whopping 10hp to the Vette.

But would argue that it's more than prestige that figures into this difference. Chevy sells a lot more of the Camaro to a much wider market. The Camaro is the one that is more often going to be used by the owner as a daily driver. More cars logging more miles means that in the interest of warranty obligations, they are likely to be a little more conservative on the tuning.

2cnd chance · 12-20-2014, 11:40 AM

Doesn't the LS7 in the Z/28 have more torque than the LS7 in the Z06.

Number 3 · 12-20-2014, 12:48 PM

And the LS3 in the C6 and Gen 5 Camaros was the same, wasn't it? Only detuned in my SS Sedan :( to 415

ChefBorOzzy · 12-20-2014, 12:54 PM

I'm not worried about it being rated 10hp less. Anyway, the Camaro wouldn't perform as well even if it had the same power. LS3 in the Camaro is rated almost the same as the LS3 in the C6 Vette. Could be just a rating thing in that case anyway.

Capricio · 12-20-2014, 01:06 PM

In the past, it has usually been just a matter of a slightly hotter cam profile and a bit more advance in the ECU. Examples: LS1 in C5 vs F-Body, 4.6 DOHC Northstar in DTS vs DHS

Number 3 · 12-20-2014, 01:11 PM

Also routing of intake and exhaust can make a difference of a few HP with the same engine.

LesserO2Evils · 12-23-2014, 10:42 AM

Detuned-no(not factoring any of that L99/LS3 mess with the 5th gens)
More efficeint exhaust and intake between the 2- yes.
That is your HP # difference.
In fact, for example....often the LS1 Fbody cars dyno'ed HIGHER than the Corvette.
Corvette will be faster, regardless due to a more effecient drivetrain and mostly, because of its lighter weight.

DrkPhx · 12-23-2014, 10:51 AM

I doubt they will actually change the engine internals, but as mentioned above, they may revise it due to exhaust and intake restrictions.

EFoxwell · 01-05-2015, 06:15 AM

Quote:

Originally Posted by Capricio

In the past, it has usually been just a matter of a slightly hotter cam profile and a bit more advance in the ECU. Examples: LS1 in C5 vs F-Body, 4.6 DOHC Northstar in DTS vs DHS

The differences in cam profile were negligible. Dyno results showed the F Body LS1 and Vette LS1 were much closer in power then GM advertised.

12-20-2014, 01:24 AM	#1
Sesiom Summers Drives: 94 Z28 / 01 Z28 / 2015 50th GT Join Date: Oct 2011 Location: Winter Park-FL /Bogota Col Posts: 447	detuned LTs for the camaro? today at my work my boss (a corvette proud owner) told me for some reason every motor the camaro gets from the corvette get detuned or downgraded... according to him the LT1, LS1 and LS3 in the camaro are less powerfull compared to the same engines in the corvette so not surprise if the LT1 come with 443 instead of the 45x hp or the LT4 come with a smaller blower... anyway why GM do this? its just to protect the corvette so the camaro cant be faster by any means? or there is a logical reason behind this don't get me wrong I love camaros as always but after he told me this I feel a bit down about the camaro... it look like GM thinks of it as the cliche side-kick of the corvette... we are the robins in this relationship! __________________ 01 SOM A4 Z28 / 15 Mustang A6 50th anniversary XXXhp 460hp

12-20-2014, 11:40 AM	#4
2cnd chance Too Many Great Choices Drives: Grand Sport/Z07 Join Date: Jun 2009 Location: A Mountain Road Posts: 7,454	Doesn't the LS7 in the Z/28 have more torque than the LS7 in the Z06. __________________

12-20-2014, 12:48 PM	#5
Number 3 Hail to the King baby! Drives: '19 XT4 2.0T & '22 VW Atlas 2.0T Join Date: Dec 2008 Location: Illinois Posts: 12,184 View My Garage	And the LS3 in the C6 and Gen 5 Camaros was the same, wasn't it? Only detuned in my SS Sedan :( to 415 __________________ "Speed, it seems to me, provides the one genuinely modern pleasure." - Aldous Huxley

12-20-2014, 01:11 PM	#8
Number 3 Hail to the King baby! Drives: '19 XT4 2.0T & '22 VW Atlas 2.0T Join Date: Dec 2008 Location: Illinois Posts: 12,184 View My Garage	Also routing of intake and exhaust can make a difference of a few HP with the same engine. __________________ "Speed, it seems to me, provides the one genuinely modern pleasure." - Aldous Huxley

12-23-2014, 10:42 AM	#9
LesserO2Evils GM repeat offender... Drives: 16 2SS Join Date: Dec 2014 Location: Grandview, Texas Posts: 1,474	Detuned-no(not factoring any of that L99/LS3 mess with the 5th gens) More efficeint exhaust and intake between the 2- yes. That is your HP # difference. In fact, for example....often the LS1 Fbody cars dyno'ed HIGHER than the Corvette. Corvette will be faster, regardless due to a more effecient drivetrain and mostly, because of its lighter weight. __________________ '16 2SS, Summit White. A8. MRC. NPP. Ordered:09/03/15. Received 12/22/15 INCOMING: ‘22 ZL1, Satin Steel. A10. PDR. Ordered: 03/02/22.

12-20-2014, 11:23 AM	#3
MrChrisLS3 Drives: 2018 1SS M6 Join Date: Nov 2014 Location: Houston Posts: 2,617	Well yeah, the Corvette is the halo car. Considering the price jump from a Camaro to a Corvette, it is going to have a higher rating. At least that had always been the thinking. Going back to 90's for instance, the Corvette got the LT1 with a four bolt main and rated at 300hp, the Camaro, two bolt main at 275 IIRC. The LS1 versions, the Vette was at 350 and Camaro at 308, with the SS coming in a little higher. Even the LS3 Camaro gives up a whopping 10hp to the Vette. But would argue that it's more than prestige that figures into this difference. Chevy sells a lot more of the Camaro to a much wider market. The Camaro is the one that is more often going to be used by the owner as a daily driver. More cars logging more miles means that in the interest of warranty obligations, they are likely to be a little more conservative on the tuning.

12-20-2014, 12:54 PM	#6
ChefBorOzzy Drives: 2016 F150 Join Date: May 2014 Location: Iowa Posts: 2,196	I'm not worried about it being rated 10hp less. Anyway, the Camaro wouldn't perform as well even if it had the same power. LS3 in the Camaro is rated almost the same as the LS3 in the C6 Vette. Could be just a rating thing in that case anyway.

12-20-2014, 01:06 PM	#7
Capricio Drives: 2000 WS6 Join Date: Dec 2014 Location: AZ Posts: 452	In the past, it has usually been just a matter of a slightly hotter cam profile and a bit more advance in the ECU. Examples: LS1 in C5 vs F-Body, 4.6 DOHC Northstar in DTS vs DHS

12-23-2014, 10:51 AM	#10
DrkPhx Drives: 2013 Triple Black ZL1 / 2006 TB SS Join Date: Feb 2011 Location: MN Posts: 2,250	I doubt they will actually change the engine internals, but as mentioned above, they may revise it due to exhaust and intake restrictions.

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