Guessing Whats Under the Z/28's Hood - Page 7

Bhobbs · 06-03-2016, 09:52 AM

Quote:

Originally Posted by newb

I still don't understand why so many people believe GM will not put out another engine for a '18 MY car. This car will not be available for 18 months or more. That's plenty of time to add it to the C7 lineup as well. And the C7 would not require heavily camouflaged mules to test a new engine config so they could be testing it right now and no one would know. Maybe the LT1 powered GS was released to draw attention away from the testing of the new power plant. Now when anyone sees the C7 on track n a test environment they assume its the GS doing final tuning. Maybe it's also testing a new drivetrain...

There's no room for another C7 below the Z06. If there was a new LTx going in the C7, that isn't for the ZR1, it would have been in the GS.

newb · 06-03-2016, 12:27 PM

Why can't it go in the GS? Wouldn't be the first time a Corvette used an engine for one year before getting a new one the following year.

Bhobbs · 06-03-2016, 01:09 PM

Quote:

Originally Posted by newb

Why can't it go in the GS? Wouldn't be the first time a Corvette used an engine for one year before getting a new one the following year.

I'm not saying it can't. I just don't see it as very likely.

Which Corvette model got a different engine one year after introduction?

newb · 06-03-2016, 01:29 PM

Quote:

Originally Posted by Bhobbs

I'm not saying it can't. I just don't see it as very likely.

Which Corvette model got a different engine one year after introduction?

The 2001 Z06 was rated at 385 hp and in 02 it was bumped up to 405. While the name didn't change, they made changes to the engine after 1 year

Bhobbs · 06-03-2016, 02:14 PM

It was still the LS6. It's not like they went from the LS1 to the LS6 the next year.

Mister Will · 06-03-2016, 05:00 PM

Watching the Video of the red ZL1 around Nurburgring there was a comment saying that the ZL1 sounded louder than the Z28. This got me thinking that the engine could be a typical LT1 and the Z28 will be a stripped down light track version of the Camaro. Just like the 5th Gen Z28, no amenities like A/C, powered windows or seats. Minimum electronics like radios and screens. Larger Wheel and sticky tire package. Race tuned suspension. With the Carbon fiber rotors and possibly wheels, the Z28 would be a light vehicle powered by a NA engine.

90503 · 06-03-2016, 05:43 PM

Quote:

Originally Posted by Mister Will

Watching the Video of the red ZL1 around Nurburgring there was a comment saying that the ZL1 sounded louder than the Z28. This got me thinking that the engine could be a typical LT1 and the Z28 will be a stripped down light track version of the Camaro. Just like the 5th Gen Z28, no amenities like A/C, powered windows or seats. Minimum electronics like radios and screens. Larger Wheel and sticky tire package. Race tuned suspension. With the Carbon fiber rotors and possibly wheels, the Z28 would be a light vehicle powered by a NA engine.

If there were no 1LE, that would make a great fit in the line-up....Making it that much lighter might be harder with this gen 6......

If the Z/28 is going to use a similar engine, I still think it should be more like the LT4 in the ZL1, rather than a similar engine to the 1LE....

A car like you describe above with a high/higher hp closer to the LT4 I think would be the best for the Z/28....Still think it will be the LT4....I hope we get more info to find out sooner than later what they are putting in it....we'll see...

pkincy · 07-23-2016, 09:20 PM

I suspect what we are missing is that the Z06 and ZL1 will likely be 700+ hp for 2018. That leaves plenty of room for a NA LTX that goes both in the 2018 GS and Z28.

No way GM is letting Chrysler get away with having the only 700 hp motor in the US.

brick777 · 07-23-2016, 10:00 PM

I read from a car site that, Katech which Chevy in-housed to build it's race motors, had apparently made mention of a Zora/ZR1/LT5 motor in regard to the upcoming mid engine corvette. This mention apparently was made on the Katech site ? I did not verify any of this info, however, could this rumored LT5 be the motor for the Z28 ?

Zeke.Malvo · 07-24-2016, 03:29 AM

Quote:

Originally Posted by pkincy

I suspect what we are missing is that the Z06 and ZL1 will likely be 700+ hp for 2018. That leaves plenty of room for a NA LTX that goes both in the 2018 GS and Z28.

No way GM is letting Chrysler get away with having the only 700 hp motor in the US.

Likely is a strong word. I think it's much more probable that it won't be 700 hp.

*DGthe3* · 07-24-2016, 10:36 AM

Quote:

Originally Posted by pkincy

I suspect what we are missing is that the Z06 and ZL1 will likely be 700+ hp for 2018. That leaves plenty of room for a NA LTX that goes both in the 2018 GS and Z28.

No way GM is letting Chrysler get away with having the only 700 hp motor in the US.

They didn't care about topping Dodge for the 2016 model year or 2017. Why do you expect 2018 to be any different?

mcsoul · 07-24-2016, 11:18 AM

GM is building cars based on chassis dynamics and mechanical grip, then optimizing the power accordingly. That is the right way to build a car in my opinion. You want HP bragging rights? Dodge dealer is next-door.

BradfordCamaro · 07-24-2016, 12:15 PM

Car was built and tested as above post. Used stock engine.
They will slip in a surprise engine for Final lap tests and release to the masses.
Best Way to keep it secret.

GrimReaperSS · 07-24-2016, 05:11 PM

Quote:

Originally Posted by BradfordCamaro

Car was built and tested as above post. Used stock engine.
They will slip in a surprise engine for Final lap tests and release to the masses.
Best Way to keep it secret.

While I like this idea, I don't believe it would benefit all the testing prior to "installing the real engine". If there are any weight differences, its would affect the chassis/suspension tuning. If theres a large enough of a difference in power, again, it would affect chassis/suspension and brake tuning. I just don't feel they would spend all that time testing with a "base" engine and then have to spend even more time re-tuning the rest of the vehicle after installing the production engine. Would be best to have the production engine in from the start and getting more test hours on it before production.
What I could see more, is like what Ford pulled with the F-150 and entering it in the Baja 1000, by using the new chassis/suspension and power train all hidden underneath a previous/current generations body. Like taking a 5th Z/28 and stuffing everything from a 6th gen version underneath, the "hidden in plain sight" idea. I believe this question even arose when a red 5th Gen was spotted around the Nurburgring wearing some different wheels that didn't look proportioned properly.

View Poll Results: What do you think will power the Z/28? (
Small (5 - 5.5L range) high revving engine	26	8.10%
LT1 with minor power bump (CAI, exhaust, etc)	10	3.12%
Heavily reworked LT1, similar to the LS6 from the C5 Z06; ~500 hp	65	20.25%
Large displacement sucessor to the LS7, ~550 hp	129	40.19%
LT4, same as from the ZL1, CTS-v, and Z06	50	15.58%
'super LT4' with a bigger blower or turbos making 700+	31	9.66%
Other (please specify)	10	3.12%
Voters: 321. You may not vote on this poll

06-03-2016, 12:27 PM	#86
newb Drives: 2013 1LE Join Date: Feb 2012 Location: DMV Posts: 1,548	Why can't it go in the GS? Wouldn't be the first time a Corvette used an engine for one year before getting a new one the following year. __________________ It's a Dingledarm. It's there to dampen side fumbling. If your marzelvanes fumble too much they can cause total protonic reversal. It gets ugly from there. This is really the biggest problem with the new Camaro. That and the tri-pronged blivot. Delivered 21 Jan 2013

06-03-2016, 02:14 PM	#89
Bhobbs Drives: 2015 SS 1LE Red Hot, 1970 Chevelle Join Date: Apr 2012 Location: Chino, CA Posts: 6,989	It was still the LS6. It's not like they went from the LS1 to the LS6 the next year. __________________

07-23-2016, 09:20 PM	#92
pkincy Drives: 2016 Corvette Z06, 2018 ATS-V Join Date: Dec 2013 Location: S Cal Posts: 157	I suspect what we are missing is that the Z06 and ZL1 will likely be 700+ hp for 2018. That leaves plenty of room for a NA LTX that goes both in the 2018 GS and Z28. No way GM is letting Chrysler get away with having the only 700 hp motor in the US. __________________ Perry 16 SharkGrey A8 Corvette Z06 18 Cadillac A8 ATS-V

07-24-2016, 12:15 PM	#97
BradfordCamaro SABIO Drives: 2016 CAMARO 1SS Join Date: Jul 2015 Location: Bradford, ON Posts: 5,012	Car was built and tested as above post. Used stock engine. They will slip in a surprise engine for Final lap tests and release to the masses. Best Way to keep it secret. __________________

06-03-2016, 05:00 PM	#90
Mister Will Drives: 2021 Camaro ZL1 A10 Join Date: May 2013 Location: San Diego, CA. Posts: 457	Watching the Video of the red ZL1 around Nurburgring there was a comment saying that the ZL1 sounded louder than the Z28. This got me thinking that the engine could be a typical LT1 and the Z28 will be a stripped down light track version of the Camaro. Just like the 5th Gen Z28, no amenities like A/C, powered windows or seats. Minimum electronics like radios and screens. Larger Wheel and sticky tire package. Race tuned suspension. With the Carbon fiber rotors and possibly wheels, the Z28 would be a light vehicle powered by a NA engine.

07-23-2016, 10:00 PM	#93
brick777 Drives: 1999 SS Join Date: Jul 2009 Location: Calif Posts: 56	I read from a car site that, Katech which Chevy in-housed to build it's race motors, had apparently made mention of a Zora/ZR1/LT5 motor in regard to the upcoming mid engine corvette. This mention apparently was made on the Katech site ? I did not verify any of this info, however, could this rumored LT5 be the motor for the Z28 ?

07-24-2016, 11:18 AM	#96
mcsoul Drives: Want a gen 6 Join Date: Jan 2013 Location: 75089 Posts: 1,032	GM is building cars based on chassis dynamics and mechanical grip, then optimizing the power accordingly. That is the right way to build a car in my opinion. You want HP bragging rights? Dodge dealer is next-door.

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