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What's the REAL reason for a motor in the back???

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Old 09-09-2018, 07:23 PM
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Stew24
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Default What's the REAL reason for a motor in the back???


What's the REAL reason for putting the motor in the back of a Corvette? .. I mean, ... 99% of all other vehicles have the engine where it belongs, .. *In the front*! This just seems like some novelty at it's core, to me. I know the claims of better handling, ..but the current Vette handles SO awesomely, ... what more is needed? 51/49 front bias, as opposed to 51/49 rear bias, ... really??? The generated talk might gen up some addiional sales, .. so I guess so!
Old 09-09-2018, 07:40 PM
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Iker
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More handling
More traction
More weight saving
better performance while less design effort

You can exceed the limit of FE cars capability with low resources.

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Old 09-09-2018, 07:40 PM
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Darion
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It's more like 41/59 and ya can take it from there.

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Old 09-09-2018, 07:59 PM
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An old lady asked Fats Waller what 'Swing' was. He answered,"Maam, if you gotsta aks, you'll never know?
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Old 09-09-2018, 08:00 PM
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I'm no engineer, but I've read the whole 50/50 thing being ideal is not true. Formula 1 cars are ~55% to the rear. I assume having less weight over the wheels that steer makes it more nimble. I assume more over the wheels that push gives better traction. If the FE Vette is "good enough" then there are plenty to buy. For those that want even more, the ME Vette is the way to go.
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Old 09-09-2018, 08:11 PM
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Thanks mitchydkid! You are correct that 50/50 was never correct to begin with. Many exotics go up to 58% of their weight on their rear wheels.
Old 09-09-2018, 08:11 PM
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Do a Google search for the science and then drive a ME car. There is a difference in rear end grip, balance and capability all things equal. GM wouldn't invest this much money in just a novelty concept. They are doing it to continue the evolution of the Corvette platform beyond what they can reasonably accomplish with a FE design.

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Old 09-09-2018, 08:19 PM
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Originally Posted by mitchydkid
I'm no engineer, but I've read the whole 50/50 thing being ideal is not true. Formula 1 cars are ~55% to the rear. I assume having less weight over the wheels that steer makes it more nimble. I assume more over the wheels that push gives better traction. If the FE Vette is "good enough" then there are plenty to buy. For those that want even more, the ME Vette is the way to go.
I've never driven a Lambo, Ferrari or Mclaren. My C7 GS handles like nothing I've ever experienced, and wonder how much better it can get? I assume, as do you ... having less weight over the wheels that steer makes it more nimble, but is that better? Nimble can be thought of as nervous, at times. If a motor in the back has all these positive virtues, it would seem you'd see it applied far more in the marketplace.
P.S., .. That video of the ME running at the Nurburgring didn't *appear* to be handling any faster than any other Vette or Camaro I've seen there.

Last edited by Stew24; 09-09-2018 at 08:24 PM.
Old 09-09-2018, 08:25 PM
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Originally Posted by Stew24

What's the REAL reason for putting the motor in the back of a Corvette? .. I mean, ... 99% of all other vehicles have the engine where it belongs, .. *In the front*! This just seems like some novelty at it's core, to me. I know the claims of better handling, ..but the current Vette handles SO awesomely, ... what more is needed? 51/49 front bias, as opposed to 51/49 rear bias, ... really??? The generated talk might gen up some addiional sales, .. so I guess so!
You are asking NOW? Where have you been for the last 50 years?

I have been waiting for a mid engine Corvette since 1973 when the mid engine Wankel Corvette was supposed to come out!

Last edited by PurpleLion; 09-09-2018 at 08:30 PM.
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Old 09-09-2018, 08:28 PM
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Originally Posted by Iker
More handling
More traction
More weight saving
better performance while less design effort

You can exceed the limit of FE cars capability with low resources.

This. I believe Motor Trend had an article of the Zr1 talking about how the platform as a whole is basically at its limit. Besides the vette, viper and maybe the GTR, their really arent many front engine cars out there competing with the top end cars. Making a FE car as competitive as a ME car is hard, and GM for the longest time has been able to keep up with the competition despite this. I think they are ready to go the next step though with this next generation. The only exception I could think of is the Aston Martin Vulcan, but that car can only be driven on the track, plus its $2.3 million.


Old 09-09-2018, 08:39 PM
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Well, with a little research, I guess I've answered my own question. The fastest 4 do all seem to be mid engined cars ....

Fastest Nurburgring lap times 2018
  • Lamborghini Aventador SVJ - 6:44.97s.
  • Porsche 911 GT2 RS - 6:47.3s.
  • Lamborghini Huracan Performante - 6:52:01s.
  • Porsche 918 Spyder (Weissach Package) - 6:57s.
  • Dodge Viper ACR - 7:01.03s.
  • Nissan GT-R Nismo - 7:08.59s.
  • Mercedes AMG GT R - 7:10.92s.
  • Gumpert Apollo Sport - 7:11.57s.
Old 09-09-2018, 08:49 PM
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[QUOTE
Drove a McLaren 720s and compared to my C6, the turn in was much better, the front of the car was there, immediately. Wherever you pointed it, the front went. Actually was a little uncomfortable for me, didn’t have time to get used to it. And the traction for acceleration was great. Still a FE fan, but it is personal preference.
Old 09-09-2018, 08:53 PM
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You get more space in the cabin because there is no transtube hump.
No need to run pipes back to the rear.
Easier to drop the motor and transaxle.
I'm sure the parasitic HP loss is less too.

I love my mid-engine Toyota MR2 Spyder.
Old 09-09-2018, 08:59 PM
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range96
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Originally Posted by Stew24

What's the REAL reason for putting the motor in the back of a Corvette? .. I mean, ... 99% of all other vehicles have the engine where it belongs, .. *In the fro nt*! This just seems like some novelty at it's core, to me. I know the claims of better handling, ..but the current Vette handles SO awesomely, ... what more is needed? 51/49 front bias, as opposed to 51/49 rear bias, ... really??? The generated talk might gen up some addiional sales, .. so I guess so!
GM couldn't match the Dodge Demon's horsepower, so they decided to put the engine in the back to beat the Porsche GT2 RS!

Last edited by range96; 09-09-2018 at 08:59 PM.
Old 09-09-2018, 09:06 PM
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Originally Posted by range96
GM couldn't match the Dodge Demon's horsepower, so they decided to put the engine in the back to beat the Porsche GT2 RS!
Seen the ZR1 power?

Comparing a Corvette with a car that is so heavy it has it's own gravity is ridiculous.
Old 09-09-2018, 09:19 PM
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Originally Posted by range96
GM couldn't match the Dodge Demon's horsepower, so they decided to put the engine in the back to beat the Porsche GT2 RS!
Uh, ... I'm a Corvette fan, .. but something tells me GM ain't fixing to beat the Porsche GT2 RS with a ME Corvette , right out the gate! ...
Fastest Nurburgring lap times 2018
  • Lamborghini Aventador SVJ - 6:44.97s.
  • Porsche 911 GT2 RS - 6:47.3s.
  • Lamborghini Huracan Performante - 6:52:01s.
  • Porsche 918 Spyder (Weissach Package) - 6:57s.
  • Dodge Viper ACR - 7:01.03s.
  • Nissan GT-R Nismo - 7:08.59s.
  • Mercedes AMG GT R - 7:10.92s.
  • Gumpert Apollo Sport - 7:11.57s.

Last edited by Stew24; 09-09-2018 at 09:20 PM.
Old 09-09-2018, 09:23 PM
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fasttoys
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Originally Posted by Stew24
I've never driven a Lambo, Ferrari or Mclaren. My C7 GS handles like nothing I've ever experienced, and wonder how much better it can get? I assume, as do you ... having less weight over the wheels that steer makes it more nimble, but is that better? Nimble can be thought of as nervous, at times. If a motor in the back has all these positive virtues, it would seem you'd see it applied far more in the marketplace.
P.S., .. That video of the ME running at the Nurburgring didn't *appear* to be handling any faster than any other Vette or Camaro I've seen there.
Stew24, i have owned many ME and driven some of the fastest production cars. Had a 15/Z06 and felt the HP overwhelmed the rear under hard acceleration, could not imagine a new ZR1. If GM does it correctly and you're looking for balance & performance you won’t look back when you finally drive an ME, they're that good.

Last edited by fasttoys; 09-10-2018 at 11:55 AM.
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Old 09-09-2018, 09:34 PM
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NineVettes
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Originally Posted by fasttoys


Stew24, i have owned many ME and driven some of the fastest production cars. Had a 15/Z06 and felt the HP overwhelmed the rear under hard acceleration, could not imagine a new ZR1. If GM does it correctly and your looking for balance and performance you won’t look back with the ME.
You are right, of course. But...….I think your 15 Z just might have been just a bit less overwhelmed under hard acceleration if it had not had 20' rims on the back combined with run flat tires. We will see what a smaller (19" rim) and non run flat high performance (but street legal) tires does in terms of my '19's controllability under hard acceleration. Again, not questioning that an ME or a 911 layout definitely is superior for hard acceleration...

Sometimes it is just a matter of picking your compromises. Like the FE, the ME will have its own compromises.
Old 09-09-2018, 09:48 PM
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IIRC... current racing rules doesn't allow a manufacturer enter their race version car if they move the engine to the rear... if the designed OEM passenger version wasn't that way to begin with (In other words... why the C7.R is currently restricted ... however the hypothetical C8.R will not).
Old 09-09-2018, 09:54 PM
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Originally Posted by fasttoys


Stew24, i have owned many ME and driven some of the fastest production cars. Had a 15/Z06 and felt the HP overwhelmed the rear under hard acceleration, could not imagine a new ZR1. If GM does it correctly and your looking for balance and performance you won’t look back with the ME.
It's the way the torque is delivered that makes it harder to manage. Roots style blowers have tremendous TQ at 2k rpm making it harder to hook while most exotics turn higher rpms and torque builds. Although the TVS 2650 in ZR1 was built to continue building power higher in the rpms they didn't do it at a cost down low so it has big power at lower rpms and spins tires accelerating hard out of corners.


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